K4T56043QF SAMSUNG | Alldatasheet
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Datasheet sections
- 2.1 Package Pintout & Mechnical Dimension
- 2.2 Input/Output Function Description
- 2.3 Addressing
Rev. 1.5 Feb. 2005 DDR2 SDRAM 256Mb F-die DDR2 SDRAM Specification Version 1.5 February 2005
Rev. 1.5 Feb. 2005 DDR2 SDRAM 1.Key Features Note : This data sheet is an abstract of full DDR2 specification and does not cover the common features which are described in “Samsung’s DDR2 SDRAM Device Operation & Timing Diagram” Speed DDR2-667 5-5-5 DDR2-533 4-4-4 DDR2-400 3-3-3 Units CAS Latency 5 43 tCK tRCD(min) 15 15 15 ns tRP(min) 15 15 15 ns tRC(min) 54 55 55 ns
- JEDEC standard 1.8V ± 0.1V Power Supply
- VDDQ = 1.8V ± 0.1V
- 200 MHz f CK for 400Mb/sec/pin, 267MHz fCK for 533Mb/sec/pin, 333MHz fCK for 667Mb/sec/pin
- 4 Banks
- Posted CAS
- Programmable CAS Latency: 3, 4, 5
- Programmable Additive Latency: 0, 1 , 2 , 3 and 4
- Write Latency(WL) = Read Latency(RL) -1
- Burst Length: 4 , 8(Interleave/nibble sequential)
- Programmable Sequential / Interleave Burst Mode
- Bi-directional Differenti al Data-Strobe (Single-ended data-strobe is an optional feature)
- Off-Chip Driver(OCD) Impedance Adjustment
- On Die Termination
- Average Refesh Period 7.8us at lower then T CASE 85°C, 3.9us at 85°C < TCASE < 95 °C
- Package: 60ball FBGA - 64Mx4/32Mx8
- All of Lead-free products are compliant for RoHS The 256Mb DDR2 SDRAM chip is organized as either 16Mbit x 4 I/Os x 4 banks or 8Mbit x 8 I/Os x 4banks device. This synchronous device achieves high speed dou- ble-data-rate transfer rates of up to 667Mb/sec/pin (DDR2- 667) for general applications. The chip is designed to comply with the following key DDR2 SDRAM features such as posted CAS with additive latency, write latency = read latency - 1, Off-Chip Driver(OCD) impedance adjustment and On Die Termina- tion. All of the control and address inputs are synchronized with a pair of externally supplied differential clocks. Inputs are latched at the crosspoint of differential clocks (CK rising and CK falling). All I/Os are synchronized with a pair of bidirectional strobes (DQS and DQS ) in a source synchro- nous fashion. The address bus is used to convey row, col- umn, and bank address information in a RAS /CAS multiplexing style. For example, 256Mb(x4) device receive 13/11/2 addressing. The 256Mb DDR2 device operates with a single The 256Mb DDR2 device is available in 60ball FBGAs(x4/x8). Note: The functionality described and the timing specifica- tions included in this data sheet are for the DLL Enabled mode of operation. 0. Ordering Information Note: Speed bin is in order of CL-tRCD-tRP Organization DDR2-667 5-5-5 DDR2-533 4-4-4 DDR2-400 3-3-3 Package 64Mx4 - K4T56043QF-GCD5 K4T56043QF-GCCC Leaded 64Mx4 - K4T56043QF-ZCD5 K4T56043QF-ZCCC Lead-free 32Mx8 K4T56083QF-GCE6 K4T56083QF-GCD5 K4T56083QF-GCCC Leaded 32Mx8 K4T56083QF-ZCE6 K4T56083QF-ZCD5 K4T56083QF-ZCCC Lead-free
Rev. 1.5 Feb. 2005 DDR2 SDRAM 2. Package Pinout/Mechnical Dimension & Addressing
2.1 Package Pinout
x4 package pinout (Top View) : 60ball FBGA Package Notes: 1. Pin B3 has identical capacitance as pin B7. 2. VDDL and VSSDL are power and ground for the DLL. A B C D E F G H J K L VDD NC VSS NC VSSQ DM VDDQ VDDQ VDDQ VSSQ VSSQ DQS DQS NC DQ0VDDQ DQ2 VSSQ NC VSSDL VDDCK RAS CK CAS CS A6 A4 A11 A8 NC NCNCA12 A9A7 VDD A10 VSS VDDQ VSSQ DQ1 DQ3NC VDDL BA1 VREF VSS CKE WE BA0 VDD VSS ODT NC 123456789 A B C D E F G H J K L Ball Locations (x4) : Populated Ball + : Depopulated Ball Top View (See the balls through the Package) 9123 7 8
Rev. 1.5 Feb. 2005 DDR2 SDRAM Notes: 1. Pins B3 and A2 have identica l capacitance as pins B7 and A8. 2. For a read, when enabled, strobe pair RDQS & RDQS are identical in function and timing to strobe pair DQS & DQS and input masking function is disabled. 3. The function of DM or RDQS/RDQS are enabled by EMRS command. 4. VDDL and VSSDL ar e power and ground for the DLL. x8 package pinout (Top View) : 60ball FBGA Package A B C D E F G H J K L VDD NU/ VSS DQ6 VSSQ VDDQ VDDQ VDDQ VSSQ VSSQ DQS DQS DQ7 DQ0VDDQ DQ2 VSSQ DQ5 VSSDL VDDCK RAS CK CAS CS A6 A4 A11 A8 NC NCNCA12 A9A7 VDD A10 VSS VDDQ VSSQ DQ1 DQ3DQ4 VDDL BA1 VREF VSS CKE WE BA0 VDD VSS DM/ RDQS RDQS NC ODT 123456789 A B C D E F G H J K L Ball Locations (x8) : Populated Ball + : Depopulated Ball Top View (See the balls through the Package) 9123 78
Rev. 1.5 Feb. 2005 DDR2 SDRAM 13.00 ± 0.10 8.00 0.801.60 11.00 ± 0.10 123456789 6.40 0.80 1.60 B C D E F G H J K L A 4.00 (5.50) (0.90) (1.80) 3.20 60-∅0.45±0.05 ∅0.2 MAB 13.00 ± 0.10 11.00 ± 0.10 0.45±0.05 0.10MAX 0.35±0.05 MAX.1.20 # A1 INDEX MARK #A1
Rev. 1.5 Feb. 2005 DDR2 SDRAM
2.2 Input/Output Functional Description
CK, CK Input Clock: CK and CK are differential clock inputs. All address and control input signals are sampled on the crossing of the positive edge of CK and negative edge of CK . Output (read) data is refer- enced to the crossings of CK and CK (both directions of crossing). CKE Input Clock Enable: CKE HIGH activates, and CKE Low deactivates, internal clock signals and device input buffers and output drivers. Taking C KE Low provides Precharge Power-Down and Self Refresh operation (all banks idle), or Active Powe r-Down (row Active in any bank). CKE is syn- chronous for power down entry and exit, and for self refresh entry. CKE is asynchronous for self refresh exit. After V REF has become stable during the power on and initialization swquence, it must be maintained for proper operation of the CKE receiver. For proper self-refresh entry and exit, V REF must be maintained to this input. CKE must be maintained high throughout read and write accesses. Input buffers, excluding CK, CK , ODT and CKE are disabled during power-down. Input buffers, excluding CKE, are disabled during self refresh. CS Input Chip Select: All commands are masked when CS is registered HIGH. CS provides for external Rank selection on systems with multiple Ranks. CS is considered part of the command code. ODT Input On Die Termination: ODT (registered HIGH) enables termination resistance internal to the DDR2 SDRAM. When enabled, ODT is only applied to each DQ, DQS, DQS , RDQS, RDQS, and DM signal for x4/x8 configurations. The ODT pin w ill be ignored if the Extended Mode Register Set(EMRS) is programmed to disable ODT. RAS, CAS, WE Input Command Inputs: RAS, CAS and WE (along with CS) define the command being entered. DM Input Input Data Mask: DM is an input mask signal for write data. Input data is masked when DM is sampled HIGH coincident with that input data during a Write access. DM is sampled on both edges of DQS. Although DM pins are input only, the DM loading matches the DQ and DQS load- ing. For x8 device, the function of DM or RDQS/RDQS is enabled by EMRS command. BA0 - BA1 Input Bank Address Inputs: BA0 and BA1 define to which bank an Active, Read, Write or Precharge command is being applied. Bank address also dete rmines if the mode register or extended mode register is to be accessed during a MRS or EMRS cycle. A0 - A12 Input Address Inputs: Provided the row address for Active commands and the column address and Auto Precharge bit for Read/Write commands to select one location out of the memory array in the respective bank. A10 is sampled during a Precharge command to determine whether the Pre- charge applies to one bank (A10 LOW) or all banks (A10 HIGH). If only one bank is to be pre- charged, the bank is selected by BA0, BA1. The a ddress inputs also provide the op-code during Mode Register Set commands. DQ Input/Output Data Input/ Output: Bi-directional data bus. DQS, (DQS (RDQS), (RDQS) Input/Output Data Strobe: output with read data, input with write data. Edge-aligned with read data, centered in write data. For the x8, an RDQS option using DM pin can be enabled via the EMRS(1) to simplify read timing. The data strobes DQS and RDQS may be used in single ended mode or paired with optional complementary signals DQS and RDQS to provide differential pair signaling to the system during both reads and writes. An EMRS(1) control bit enables or disables all complementary data strobe signals. NC No Connect: No internal electrical connection is present. VDD/VDDQ Supply Power Supply: 1.8V +/- 0.1V, DQ Power Supply: 1.8V +/- 0.1V VSS/VSSQ Supply Ground, DQ Ground VDDL Supply DLL Power Supply: 1.8V +/- 0.1V VSSDL Supply DLL Ground VREF Supply Reference voltage In this data sheet, "differential DQS signals" refers to any of the following with A10 = 0 of EMRS(1) x4 DQS/DQS x8 DQS/DQS if EMRS(1)[A11] = 0 x8 DQS/DQS , RDQS/RDQS, if EMRS(1)[A11] = 1 "single-ended DQS signals" refers to any of the following with A10 = 1 of EMRS(1) x4 DQS x8 DQS if EMRS(1) [A11] = 0 x8 DQS, RDQS, if EMRS(1) [A11] = 1
Rev. 1.5 Feb. 2005 DDR2 SDRAM 2.3 256Mb Addressing * Reference information: The following tables are address mapping information for other densities. 512Mb 1Gb 2Gb 4Gb Configuration 64Mb x4 32Mb x 8 # of Bank 4 4 Bank Address BA0,BA1 BA0,BA1 Auto precharge A 10/AP A 10/AP Row Address A 0 ~ A12 A0 ~ A12 Column Address A 0 ~ A9,A11 A0 ~ A9 Configuration 128Mb x4 64Mb x 8 32Mb x16 # of Bank 4 4 4 Bank Address BA0,BA1 BA0,BA1 BA0,BA1 Auto precharge A 10/AP A 10/AP A 10/AP Row Address A 0 ~ A13 A0 ~ A13 A0 ~ A12 Column Address A 0 ~ A9,A11 A0 ~ A9 A0 ~ A9 Configuration 256Mb x4 128Mb x 8 64Mb x16 # of Bank 8 8 8 Bank Address BA0 ~ BA2 BA0 ~ BA2 BA0 ~ BA2 Auto precharge A 10/AP A 10/AP A 10/AP Row Address A 0 ~ A13 A0 ~ A13 A0 ~ A12 Column Address A 0 ~ A9,A11 A0 ~ A9 A0 ~ A9 Configuration 512Mb x4 256Mb x 8 128Mb x16 # of Bank 8 8 8 Bank Address BA0 ~ BA2 BA0 ~ BA2 BA0 ~ BA2 Auto precharge A 10/AP A 10/AP A 10/AP Row Address A 0 ~ A14 A0 ~ A14 A0 ~ A13 Column Address A 0 ~ A9,A11 A0 ~ A9 A0 ~ A9 Configuration 1 Gb x4 512Mb x 8 256Mb x16 # of Bank 8 8 8 Bank Address BA0 ~ BA2 BA0 ~ BA2 BA0 ~ BA2 Auto precharge A 10/AP A 10/AP A 10/AP Row Address A 0 - A15 A0 - A15 A0 - A14 Column Address/page size A 0 - A9,A11 A 0 - A9 A 0 - A9
Rev. 1.5 Feb. 2005 DDR2 SDRAM 3. Absolute Maximum DC Ratings 4. AC & DC Operating Conditions Recommended DC Operating Conditions (SSTL - 1.8) Symbol Parameter Rating Units Notes VDD Voltage on VDD pin relative to Vss - 1.0 V ~ 2.3 V V 1 VDDQ Voltage on VDDQ pin relative to Vss - 0.5 V ~ 2.3 V V 1 VDDL Voltage on VDDL pin relative to Vss - 0.5 V ~ 2.3 V V 1 VIN, VOUT Voltage on any pin relative to Vss - 0.5 V ~ 2.3 V V 1 TSTG Storage Temperature -55 to +100 °C 1, 2 1. Stresses greater than those listed under “A bsolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operati onal sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect r eli- ability. 2. Storage Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to JESD51-2 standard. Symbol Parameter Rating Units Notes Min. Typ. Max. VDD Supply Voltage 1.7 1.8 1.9 V VDDL Supply Voltage for DLL 1.7 1.8 1.9 V 4 VDDQ Supply Voltage for Output 1.7 1.8 1.9 V 4 VREF Input Reference Voltage 0.49*VDDQ 0.50*VDDQ 0.51*VDDQ mV 1,2 VTT Termination Voltage VREF-0.04 V REF VREF+0.04 V 3 There is no specific device VDD supply voltage requirement for SSTL-1.8 compliance. However under all conditions VDDQ must be less than or equal to VDD. 1. The value of VREF may be selected by the user to provide optimu m noise margin in the system. Typically the value of VREF is expected to be about 0.5 x VDDQ of the transmitting devic e and VREF is expected to track variations in VDDQ. 2. Peak to peak AC noise on VREF may not exceed +/-2% VREF(DC). 3. VTT of transmitting device must track VREF of receiving device. 4. AC parameters are measured with VDD, VDDQ and VDDDL tied together.
Rev. 1.5 Feb. 2005 DDR2 SDRAM Operating Temperature Condition 1. Operating Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to JESD51.2 standard. 2. At 85 - 95 °C operation temperature range, doubling refresh commands in fr equency to a 32ms period ( tREFI=3.9 us ) is required, and to enter to self refresh mode at this temperature range, an EMRS command is required to change internal refresh rate. Input DC Logic Level Input AC Logic Level AC Input Test Conditions Notes: 1. Input waveform timing is referenced to the input signal crossing through the V IH/IL(AC) level applied to the device under test. 2. The input signal minimum slew rate is to be maintained over the range from V REF to VIH(AC) min for rising edges and the range from VREF to VIL(AC) max for falling edges as shown in the below figure. 3. AC timings are referenced with input waveforms switching from V IL(AC) to VIH(AC) on the positive transitions and VIH(AC) to VIL(AC) on the negative transitions. Symbol Parameter Rating Units Notes TOPER Operating Temperature 0 to 95 °C 1, 2 Symbol Parameter Min. Max. Units Notes VIH(DC) DC input logic high VREF + 0.125 V DDQ + 0.3 V VIL(DC) DC input logic low - 0.3 V REF - 0.125 V Symbol Parameter DDR2-400, DDR2-533 DDR2-667 Min. Max. Min. Max. VIH (ac) ac input logic high VREF + 0.250 - V REF + 0.200 VIL (ac) ac input logic low -V REF - 0.250 V REF - 0.200 Symbol Condition Value Units Notes VREF Input reference voltage 0.5 * V DDQ V1 VSWING(MAX) Input signal maximum peak to peak swing 1.0 V 1 SLEW Input signal minimum slew rate 1.0 V/ns 2, 3 VDDQ VIH(AC) min VIH(DC) min VREF VIL(DC) max VIL(AC) max VSS < AC Input Test Signal Waveform > VSWING(MAX) delta TRdelta TF VREF - VIL(AC) max delta TF Falling Slew = Rising Slew = VIH(AC) min - VREF delta TR
Rev. 1.5 Feb. 2005 DDR2 SDRAM Differential input AC logic Level Notes: 1. VID(AC) specifies the input differential voltage |VTR -VCP | required for switching, where VTR is the true input signal (such as CK, DQS, LDQS or UDQS) and VCP is the complementary input signal (such as CK, DQS, LDQS or UDQS). The minimum value is equal to VIH(AC) - VIL(AC). 2. The typical value of VIX(AC) is expected to be about 0.5 * VDDQ of the transmitting device and V IX(AC) is expected to track variations in VDDQ . VIX(AC) indicates the voltage at which differential input signals must cross. Differential AC output parameters Note : 1. The typical value of VOX(AC) is expected to be about 0.5 * VDDQ of the transmitting device and VOX(AC) is expected to track variations in VDDQ . VOX(AC) indicates the voltage at which differential output signals must cross. Symbol Parameter Min. Max. Units Notes VID(AC) AC differential input voltage 0.5 V DDQ + 0.6 V 1 VIX(AC) AC differential cross point voltage 0.5 * VDDQ - 0.175 0.5 * VDDQ + 0.175 V 2 Symbol Parameter Min. Max. Units Note VOX(AC) AC differential cross point voltage 0.5 * VDDQ - 0.125 0.5 * VDDQ + 0.125 V 1 VDDQ Crossing point VSSQ VTR VCP VID VIX or VOX < Differential signal levels >
Rev. 1.5 Feb. 2005 DDR2 SDRAM OCD default characteristics Notes: 2. Impedance measurement condition for output source dc current: VDDQ = 1.7V; VOUT = 1420mV; (VOUT-VDDQ)/Ioh must be less than 23.4 ohms for values of VOUT between VDDQ and VDDQ- 280mV. Impedance measurement condition for output sink dc current: VDDQ = 1.7V; VOUT = 280mV; VOUT/Iol must be less than 23.4 ohms for values of VOUT between 0V and 280mV. 3. Mismatch is absolute value between pull-up and pull-dn, both are measured at same temperature and voltage. 4. Slew rate measured from V IL(AC) to VIH(AC). 5. The absolute value of the slew rate as measured from DC to DC is equal to or greater than the slew rate as measured from AC to AC. This is guaranteed by design and characterization. 6. This represents the step size when the OCD is near 18 ohms at nominal conditions across all process and represents only the DRAM uncertainty. Output slew rate load : 7. DRAM output slew rate specification applies to 400Mb/sec/pin, 533Mb/sec/pin and 667Mb/sec/pin speed bins. 8. Timing skew due to DRAM output slew rate mis-match between DQS / DQS and associated DQs is included in tDQSQ and tQHS specification. Description Parameter Min Nom Max Unit Notes Output impedance 12.6 18 23.4 ohms 1,2 Output impedance step size for OCD calibration 0 1.5 ohms 6 Pull-up and pull-down mismatch 0 4 ohms 1,2,3 Output slew rate Sout 1.5 5 V/ns 1,4,5,6,7,8 25 ohms VTT Output (VOUT) Reference Point
Rev. 1.5 Feb. 2005 DDR2 SDRAM IDD Specification Parameters and Test Conditions (IDD values are for full operating range of Voltage and Temperature, Notes 1 - 5) Symbol Proposed Conditions Units Notes IDD0 Operating one bank active-precharge current ; tCK = tCK(IDD), tRC = tRC(IDD), tRAS = tRASmin(IDD); CKE is HIGH, CS\\ is HIGH between valid commands; Address bus inputs are SWITCHING; Data bus inputs are SWITCHING mA IDD1 Operating one bank active-read-precharge current ; IOUT = 0mA; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK(IDD), tRC = tRC (IDD), tRAS = tRAS- min(IDD), tRCD = tRCD(IDD); CKE is HIGH, CS\\ is HIGH between valid commands; Address busin- puts are SWITCHING; Data pattern is same as IDD4W mA IDD2P Precharge power-down current; All banks idle; tCK = tCK(IDD); CKE is LOW; Other control and address bus inputs are STABLE; Data bus inputs are FLOATING mA IDD2Q Precharge quiet standby current; All banks idle; tCK = tCK(IDD); CKE is HIGH, CS\\ is HIGH; Other control and address bus inputs are STABLE; Data bus inputs are FLOATING mA IDD2N Precharge standby current; All banks idle; tCK = tCK(IDD); CKE is HIGH, CS\\ is HIGH; Other control and address bus inputs are SWITCHING; Data bus inputs are SWITCHING mA IDD3P Active power-down current; All banks open; tCK = tCK(IDD); CKE is LOW; Other control and address bus inputs are STABLE; Data bus inputs are FLOATING Fast PDN Exit MRS(12) = 0mA mA Slow PDN Exit MRS(12) = 1mA mA IDD3N Active standby current; All banks open; tCK = tCK(IDD), tRAS = tRASmax(IDD), tRP = tRP(IDD); CKE is HIGH, CS\\ is HIGH between valid commands; Other control and address bus inputs are SWITCHING; Data bus inputs are SWITCHING mA IDD4W Operating burst write current; All banks open, Continuous burst writes; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK(IDD), tRAS = tRASmax(IDD), tRP = tRP(IDD); CKE is HIGH, CS\\ is HIGH between valid commands; Address bus inputs are SWITCHING; Data bus inputs are SWITCHING mA IDD4R Operating burst read current; All banks open, Continuous burst reads, IOUT = 0mA; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK(IDD), tRAS = tRASmax(IDD), tRP = tRP(IDD); CKE is HIGH, CS\\ is HIGH between valid com- mands; Address bus inputs are SWITCHING; Data pattern is same as IDD4W mA IDD5B Burst auto refresh current; tCK = tCK(IDD); Refresh command at every tRFC(IDD) interval; CKE is HIGH, CS\\ is HIGH between valid commands; Other control and address bus inputs are SWITCHING; Data bus inputs are SWITCHING mA IDD6 Self refresh current; CK and CK\\ at 0V; CKE ≤ 0.2V; Other control and address bus inputs are FLOATING; Data bus inputs are FLOATING Normal mA Low Power mA IDD7 Operating bank interleave read current; All bank interleaving reads, IOUT = 0mA; BL = 4, CL = CL(IDD), AL = tRCD(IDD)-1*tCK(IDD); tCK = tCK(IDD), tRC = tRC(IDD), tRRD = tRRD(IDD), tRCD = 1*tCK(IDD); CKE is HIGH, CS\\ is HIGH between valid commands; Address bus inputs are STABLE during DESELECTs; Data pattern is same as IDD4R; Refer to the following page for detailed timing conditions mA
Rev. 1.5 Feb. 2005 DDR2 SDRAM Notes: 1. IDD specifications are tested after the device is properly initialized 2. Input slew rate is specified by AC Parametric Test Condition 3. IDD parameters are specified with ODT disabled. 4. Data bus consists of DQ, DM, DQS, DQS\\, RDQS, RDQS\\, LDQS, LDQS\\, UDQS, and UDQS\\. IDD values must be met with all combi- nations of EMRS bits 10 and 11. 5. Definitions for IDD LOW is defined as Vin ≤ VILAC(max) HIGH is defined as Vin ≥ VIHAC(min) STABLE is defined as inputs stable at a HIGH or LOW level FLOATING is defined as inputs at VREF = VDDQ/2 SWITCHING is defined as: inputs changing between HIGH and LOW every other clock cycle (once per two clocks) for address and control signals, and inputs changing between HIGH and LOW every other data transfer (once per clock) for DQ signals not includi ng masks or strobes. For purposes of IDD testing, the following parameters are utilized Detailed IDD7 The detailed timings are shown below for IDD7. Legend: A = Active; RA = Read with Autoprecharge; D = Deselect IDD7: Operating Current: All Bank Interleave Read operation All banks are being interleaved at minimum tRC(IDD) without violating tRRD(IDD) using a burst length of 4. Control and address bus inputs are STABLE during DESELECTs. IOUT = 0mA Timing Patterns for 4 bank devices x4/ x8/ x16 -DDR2-400 3/3/3 A0 RA0 A1 RA1 A2 RA2 A3 RA3 D D D -DDR2-533 4/4/4 A0 RA0 D A1 RA1 D A2 RA2 D A3 RA3 D D D D D -DDR2-667 5/5/5 A0 RA0 D D A1 RA1 D D A2 RA2 D D A3 RA3 D D D D D D DDR2-667 DDR2-533 DDR2-400 Parameter 5-5-5 4-4-4 3-3-3 Units CL(IDD) 5 4 3 tCK tRCD(IDD) 15 15 15 ns tRC(IDD) 60 60 55 ns tRRD(IDD)-x4/x8 7.5 7.5 7.5 ns tRRD(IDD)-x16 10 10 10 ns tCK(IDD) 33 . 7 55 ns tRASmin(IDD) 45 45 40 ns tRP(IDD) 15 15 15 ns tRFC(IDD) 105 105 105 ns
Rev. 1.5 Feb. 2005 DDR2 SDRAM DDR2 SDRAM IDD Spec Table Symbol 64Mx4(K4T56043QF) Unit Notes - D5(DDR2-533@CL=4) CC(DDR2-400@CL=3) IDD0 - 100 95 mA IDD1 - 110 100 mA IDD2P - 8 8 mA IDD2Q - 25 25 mA IDD2N - 30 30 mA IDD3P-F - 30 30 mA IDD3P-S - 15 15 mA IDD3N - 70 65 mA IDD4W - 160 125 mA IDD4R - 150 125 mA IDD5B - 165 160 mA IDD6 Normal - 5 5 mA IDD7 - 250 245 mA Symbol 32Mx8(K4T56083QF) Unit Notes E6(DDR2-667@CL=5) D5(DDR2-533@CL=4) CC(DDR2-400@CL=3) IDD0 105 100 95 mA IDD1 115 110 100 mA IDD2P 8 8 8 mA IDD2Q 30 25 25 mA IDD2N 35 30 30 mA IDD3P-F 35 30 30 mA IDD3P-S 15 15 15 mA IDD3N 75 70 65 mA IDD4W 210 175 135 mA IDD4R 185 160 130 mA IDD5B 170 165 160 mA IDD6 Normal 5 5 5 mA IDD7 265 255 255 mA
Rev. 1.5 Feb. 2005 DDR2 SDRAM Input/Output capacitance (0 °C < TCASE < 95 °C; VDDQ = 1.8V + 0.1V; VDD = 1.8V + 0.1V) Refresh Parameters by Device Density Speed Bins and CL, tRCD, tRP, tRC and tRAS for Corresponding Bin Parameter Symbol DDR2-400 DDR2-533 DDR2-667 Min Max Min Max Units Input capacitance, CK and CK CCK 1.0 2.0 1.0 2.0 pF Input capacitance delta, CK and CK CDCK x 0.25 x 0.25 pF Input capacitance, all other input-only pins CI 1.0 2.0 1.0 2.0 pF Input capacitance delta, all other input-only pins CDI x 0.25 x 0.25 pF Input/output capacitance, DQ, DM, DQS, DQS CIO 2.5 4.0 2.5 3.5 pF Input/output capacitance delta, DQ, DM, DQS, DQS CDIO x 0.5 x 0.5 pF Parameter Symbol 256Mb 512Mb 1Gb 2Gb 4Gb Units Refresh to active/Refresh command time tRFC 75 105 127.5 195 327.5 ns Average periodic refresh interval tREFI Speed DDR2-667(E6) DDR2-533(D5) DDR2-400(CC) Units Bin (CL - tRCD - tRP) 5 - 5- 5 4 - 4 - 4 3 - 3 - 3 Parameter min max min max min max tCK, CL=3 5 8 5 8 5 8 ns tCK, CL=4 3.75 8 3.75 8 5 8 ns tCK, CL=5 3 8 - - - - ns tRCD 15 15 15 ns tRP 15 15 15 ns tRC 54 55 55 ns tRAS 39 70000 40 70000 40 70000 ns
Rev. 1.5 Feb. 2005 DDR2 SDRAM Timing Parameters by Speed Grade (Refer to notes for informations related to this table at the bottom) Parameter Symbol DDR2-667 DDR2-533 DDR2-400 Units Notes min max min max min max DQ output access time from CK/CK tAC -450 +450 -500 +500 -600 +600 ps DQS output access time from CK/CK tDQSCK -400 +400 -450 +450 -500 +500 ps CK half period tHP min(tCL , tCH) x min(tCL , tCH) x min(tCL , tCH) x ps 20,21 Clock cycle time, CL=x tCK 3000 8000 3750 8000 5000 8000 ps 24 DQ and DM input hold time tDH(base) 175 x 225 x2 7 5 x ps 15,16, 17,20 DQ and DM input setup time tDS(base) 100 x 100 x1 5 0 x ps 15,16, 17,21 Control & Address input pulse width for each input tIPW 0.6 x 0.6 x0 . 6x tCK DQ and DM input pulse width for each input tDIPW 0.35 x 0.35 x0 . 3 5 x tCK Data-out high- impedance time from CK/CK tHZ x tAC max xt A C max xt A C max ps DQS low-impedance time from CK/CK tLZ(DQS) tAC min tAC max tAC min tAC max tAC min tAC max ps 27 DQ low-impedance time from CK/CK tLZ(DQ) 2*tAC min tAC max 2* tAC min tAC max 2* tAC min tAC max ps 27 DQS-DQ skew for DQS and associated DQ signals tDQSQ x 240 x 300 x 350 ps 22 DQ hold skew factor tQHS x 340 x 400 x 450 ps 21 DQ/DQS output hold time from DQS tQH tHP - tQHS x tHP - tQHS x tHP - tQHS x ps First DQS latching transition to associated clock edge DQS input high pulse width tDQSH 0.35 x 0.35 x 0.35 x tCK DQS input low pulse width tDQSL 0.35 x 0.35 x 0.35 x tCK DQS falling edge to CK setup time tDSS 0.2 x 0.2 x 0.2 x tCK DQS falling edge hold time from CK tDSH 0.2 x 0.2 x 0.2 x tCK
Rev. 1.5 Feb. 2005 DDR2 SDRAM Parameter Symbol DDR2-667 DDR2-533 DDR2-400 Units Notes min max min max min max Mode register set command cycle time tMRD 2 x 2 x 2 x tCK Write preamble tWPRE 0.35 x 0.35 x 0.35 x tCK Address and control input hold time tIH(base) 275 x3 7 5 x 475 x ps 14,16, 18,23 Address and control input setup time tIS(base) 200 x2 5 0 x 350 x ps 14,16, 18,22 Active to active command period for 1KB page size products tRRD 7.5 x7 . 5 x 7.5 x ns 12 Active to active command period for 2KB page size products tRRD 10 x1 0 x 10 x ns 12 Four Activate Window for 1KB page size products tFAW 37.5 37.5 37.5 ns Four Activate Window for 2KB page size products tFAW 50 50 50 ns CAS to CAS command delay tCCD 2 2 2 tCK Write recovery time tWR 15 x1 5 x 15 x ns Auto precharge write recovery + precharge time tDAL WR+tR P x WR+tR P x WR+tR P x tCK 23 Internal write to read command delay tWTR 7.5 x7 . 5 x1 0 x ns 33 Internal read to precharge command delay tRTP 7.5 7.5 7.5 ns 11 Exit self refresh to a non-read command tXSNR tRFC + tRFC + tRFC + ns Exit self refresh to a read command tXSRD 200 200 200 tCK Exit precharge power down to any non-read command tXP 2 x 2 x 2 x tCK Exit active power down to read command tXARD 2 x 2 x 2 x tCK 9
Rev. 1.5 Feb. 2005 DDR2 SDRAM Parameter Symbol DDR2-667 DDR2-533 DDR2-400 Units Notes min max min max min max Exit active power down to read command (slow exit, lower power) tXARDS 7 - AL 6 - AL 6 - AL tCK 9, 10 CKE minimum pulse width (high and low pulse width) tCKE 3 33 tCK 36 ODT turn-on delay tAOND 222222 t C K ODT turn-on tAON tAC(mi tAC(m ax)+0. tAC(mi tAC(m ax)+1 tAC(mi tAC(ma x)+1 ns 13, 25 ODT turn-on(Power- Down mode) tAONPD tAC(mi n)+2 2tCK+t AC(ma x)+1 tAC(mi n)+2 2tCK+t AC(ma x)+1 tAC(mi n)+2 2tCK+t AC (max)+ ns ODT turn-off tAOF tAC(mi tAC(m ax)+ 0.6 tAC(min) tAC(ma x)+ 0.6 tAC(mi tAC(max )+ 0.6 ns 26 ODT turn-off (Power- Down mode) tAOFPD tAC(mi n)+2 2.5tCK +tAC( max)+ tAC(mi n)+2 2.5tCK tAC(m ax)+1 tAC(mi n)+2 2.5tCK tAC(ma x)+1 ns ODT to power down entry latency tANPD 3 3 3 tCK ODT power down exit latency tAXPD 8 8 8 tCK OCD drive mode output delay tOIT 0 12 0 12 0 12 ns Minimum time clocks remains ON after CKE asynchronously drops LOW tDelay tIS+tCK +tIH tIS+tCK +tIH tIS+tCK +tIH ns 24
Rev. 1.5 Feb. 2005 DDR2 SDRAM General notes, which may apply for all AC parameters 1. Slew Rate Measurement Levels a. Output slew rate for falling and rising edges is measured between VTT - 250 mV and VTT + 250 mV for single ended signals. For differential signals (e.g. DQS - DQS) output slew rate is measured between DQS - DQS = -500 mV and DQS - DQS = +500mV. Output slew rate is guaranteed by design, but is not necessarily tested on each device. b. Input slew rate for single ended signals is measured from dc-level to ac-level: from VIL(dc) to VIH(ac) for rising edges and from VIH(dc) and VIL(ac) for falling edges. For differential signals (e.g. CK - CK) slew rate for rising edges is measured from CK - CK = -250 mV to CK - CK = +500 mV (250mV to -500 mV for falling edges). c. VID is the magnitude of the difference between the input voltage on CK and the input voltage on CK, or between DQS and DQS for differential strobe. 2. DDR2 SDRAM AC timing reference load Following figure represents the timing reference load used in defining the relevant timing parameters of the part. It is not intended to be either a precise representation of the typical system environment or a depiction of the actual load presented by a production tester. System designers will use IBIS or other simulation tools to correlate the timing reference load to a system environment. Manufacturers will correlate to their production test conditions (generally a coaxial transmission line terminated at the tester electronics). The output timing reference voltage level for single ended signals is the crosspoint with VTT. The output tim- ing reference voltage level for differential signals is the crosspoint of the true (e.g. DQS) and the complement (e.g. DQS) signal. 3. DDR2 SDRAM output slew rate test load Output slew rate is characterized under the test conditions as shown in the following figure. VDDQ DUT DQ DQS DQS RDQS RDQS Output VTT = VDDQ/2 25ΩTiming reference point <AC Timing Reference Load> VDDQ DUT DQ DQS, DQS RDQS, RDQS Output VTT = VDDQ/2 25ΩTest point <Slew Rate Test Load>
Rev. 1.5 Feb. 2005 DDR2 SDRAM 4. Differential data strobe DDR2 SDRAM pin timings are specified for either single ended mode or differential mode depending on the setting of the EMRS “Enable DQS” mode bit; timing advantages of differential mode are realized in sys- tem design. The method by which the DDR2 SDRAM pin timings are measured is mode dependent. In single ended mode, timing relationships are measured relative to the rising or falling edges of DQS crossing at VREF. In differential mode, these timing relationships are measured relative to the crosspoint of DQS and its complement, DQS . This distinction in timing methods is guaranteed by design and characterization. Note that when differential data strobe mode is disabled via the EMRS, the complementary pin, DQS, must be tied externally to VSS through a 20 ohm to 10 K ohm resisor to insure proper operation. 5. AC timings are for linear signal transitions. 6. These parameters guarantee device behavior, but they are not necessarily tested on each device. They may be guaranteed by device design or tester correlation. 7. All voltages are referenced to VSS. 8. Tests for AC timing, IDD, and electrical (AC and DC) characteristics, may be conducted at nominal refer- ence/supply voltage levels, but the related specifications and device operation are guaranteed for the full volt- age range specified. tDS tDS tDH tWPRE tWPST tDQSH tDQSL DQS DQS D DMin DQS/ DQ DM tDH <Data input (write) timing> DMin DMin DMin D D D DQS VIL(ac) VIH(ac) VIL(ac) VIH(ac) VIL(dc) VIH(dc) VIL(dc) VIH(dc) tCH tCL CK CK CK/CK DQS/DQS DQ DQS DQS tRPST Q tRPRE tDQSQmax tQH tQH tDQSQmax <Data output (read) timing> Q QQ
Rev. 1.5 Feb. 2005 DDR2 SDRAM Specific Notes for dedicated AC parameters 9. User can choose which active power down exit timing to use via MRS(bit 12). tXARD is expected to be used for fast active power down exit timing. tXARDS is expected to be used for slow active power down exit timing. 10. AL = Additive Latency 11. This is a minimum requirement. Minimum read to precharge timing is AL + BL/2 providing the tRTP and tRAS(min) have been satisfied. 12. A minimum of two clocks (2 * tCK) is required irrespective of operating frequency 13. Timings are guaranteed with command/address input slew rate of 1.0 V/ns. 14. These parameters guarantee device behavior, but they are not necessarily tested on each device. They may be guaranteed by device design or tester correlation. 15. Timings are guaranteed with data, mask, and (DQS/RDQS in singled ended mode) input slew rate of 1.0 V/ns. 16. Timings are guaranteed with CK/CK differential slew rate of 2.0 V/ns. Timings are guaranteed for DQS signals with a differential slew rate of 2.0 V/ns in differential strobe mode and a slew rate of 1V/ns in single ended mode. 17. tDS and tDH derating for DDR2-400 and DDR2-533 For all input signals the total tDS (setup time) and tDH (hold time) required is calculated by adding the datasheet tDS(base) and tDH(base) value to the delta tDS and delta tDH derating value respectively. Exam- ple: tDS (total setup time) = tDS(base) + delta tDS. ∆tDS, ∆tDH Derating Values (ALL units in ‘ps’, Note 1 applies to entire Table) DQS,DQS Differential Slew Rate ∆tD S ∆tD H ∆tD S ∆tD H ∆tD S ∆tD H ∆tD S ∆tD H ∆tD S ∆tD H ∆tD S ∆tD H ∆tD S ∆tD H ∆tD S ∆tD H ∆tD S ∆tD H DQ Slew rate V/ns 1.5 83 21 83 21 83 21 95 33 - - - - - - - - - - 1.0 0 0 0 0 0 0 12 12 24 24 - - - - - - - -
Rev. 1.5 Feb. 2005 DDR2 SDRAM 18. tIS and tIH (input setup and hold) derating. tIS, tIH Derating Values for DDR2-400, DDR2-533 CK,CK Differential Slew Rate 2.0 V/ns 1.5 V/ns 1.0 V/ns ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH Units Notes Com- mand/Ad- dress Slew rate (V/ns) 4.0 +187 +94 +217 +124 +247 +154 ps 1 3.5 +179 +89 +209 +119 +239 +149 ps 1 3.0 +167 +83 +197 +113 +227 +143 ps 1 2.5 +150 +75 +180 +105 +210 +135 ps 1 2.0 +125 +45 +155 +75 +185 +105 ps 1 1.5 +83 +21 +113 +51 +143 +81 ps 1 1.0 0 0 +30 +30 +60 60 ps 1 0.9 -11 -14 +19 +16 +49 +46 ps 1 0.8 -25 -31 +5 -1 +35 +29 ps 1 0.7 -43 -54 -13 -24 +17 +6 ps 1 0.6 -67 -83 -37 -53 -7 -23 ps 1 0.5 -110 -125 -80 -95 -50 -65 ps 1 0.4 -175 -188 -145 -158 -115 -128 ps 1 0.3 -285 -292 -255 -262 -225 -232 ps 1 0.25 -350 -375 -320 -345 -290 -315 ps 1 0.2 -525 -500 -495 -470 -465 -440 ps 1 0.15 -800 -708 -770 -678 -740 -648 ps 1 ∆tIS and ∆tIH Derating Values for DDR2-667, DDR2-800 CK,CK Differential Slew Rate 2.0 V/ns 1.5 V/ns 1.0 V/ns ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH Units Notes Com- mand/Ad- dress Slew rate (V/ns) 4.0 +150 +94 +180 +124 +210 +154 ps 1 3.5 +143 +89 +173 +119 +203 +149 ps 1 3.0 +133 +83 +163 +113 +193 +143 ps 1 2.5 +120 +75 +150 +105 +180 +135 ps 1 2.0 +100 +45 +130 +75 +160 +105 ps 1 1.5 +67 +21 +97 +51 +127 +81 ps 1 1.0 0 0 +30 +30 +60 +60 ps 1 0.9 -5 -14 +25 +16 +55 +46 ps 1 0.8 -13 -31 +17 -1 +47 +29 ps 1 0.7 -22 -54 +8 -24 +38 +6 ps 1 0.6 -34 -83 -4 -53 +26 -23 ps 1 0.5 -60 -125 -30 -95 0 -65 ps 1 0.4 -100 -188 -70 -158 -40 -128 ps 1 0.3 -168 -292 -138 -262 -108 -232 ps 1 0.25 -200 -375 -170 -345 -140 -315 ps 1 0.2 -325 -500 -295 -470 -265 -440 ps 1 0.15 -517 -708 -487 -678 -457 -648 ps 1 0.1 -1000 -1125 -970 -1095 -940 -1065 ps 1
Rev. 1.5 Feb. 2005 DDR2 SDRAM For all input signals the total tIS (setup time) and tIH (hold time) required is calculated by adding the datasheet tIS(base) and tIH(base) value to the delta tIS and delta tIH derating value respectively. Example: tIS (total setup time) = tIS(base) + delta tIS 19. The maximum limit for this parameter is not a device limit. The device will operate with a greater value for this parameter, but system performance (bus turnaround) will degrade accordingly. 20. MIN ( tCL, tCH) refers to the smaller of the actual clock low time and the actual clock high time as pro- vided to the device (i.e. this value can be greater than the minimum specification limits for tCL and tCH). For example, tCL and tCH are = 50% of the period, less the half period jitter ( tJIT(HP)) of the clock source, and less the half period jitter due to crosstalk ( tJIT(crosstalk)) into the clock traces. 21. tQH = tHP – tQHS, where: tHP = minimum half clock period for any given cycle and is defined by clock high or clock low ( tCH, tCL). tQHS accounts for: 1) The pulse duration distortion of on-chip clock circuits; and 2) The worst case push-out of DQS on one transition followed by the worst case pull-in of DQ on the next transition, both of which are, separately, due to data pin skew and output pattern effects, and p- channel to n-channel variation of the output drivers. 22. tDQSQ: Consists of data pin skew and output pattern effects, and p-channel to n-channel variation of the output drivers as well as output slew rate mismatch between DQS / DQS and associated DQ in any given cycle. 23. DAL = WR + RU{tRP(ns)/tCK(ns)}, where RU stands for round up. WR refers to the tWR parameter stored in the MRS. For tRP , if the result of the division is not already an inte- ger, round up to the next highest integer. tCK refers to the application clock period. Example: For DDR533 at tCK = 3.75ns with tWR programmed to 4 clocks. tDAL = 4 + (15 ns / 3.75 ns) clocks = 4 + (4) clocks = 8 clocks. 24. The clock frequency is allowed to change during self–refresh mode or precharge power-down mode. In case of clock frequency change during precharge power-down, a specific procedure is required as described in DDR2 device operation 25. ODT turn on time min is when the device leaves high impedance and ODT resistance begins to turn on. ODT turn on time max is when the ODT resistance is fully on. Both are measured from tAOND. 26. ODT turn off time min is when the device starts to turn off ODT resistance. ODT turn off time max is when the bus is in high impedance. Both are measured from tAOFD. 27. tHZ and tLZ transitions occur in the same access time as valid data transitions. These parameters are ref- erenced to a specific voltage level which specifies when the device output is no longer driving (tHZ), or begins driving (tLZ). Following figure shows a method to calculate the point when device is no longer driving (tHZ), or begins driving (tLZ) by measuring the signal at two different voltages. The actual voltage measurement points are not critical as long as the calculation is consistent. 28. tRPST end point and tRPRE begin point are not referenced to a specific voltage level but specify when the device output is no longer driving (tRPST), or begins driving (tRPRE). Following figure shows a method to calculate these points when the device is no longer driving (tRPST), or begins driving (tRPRE) by measuring the signal at two different voltages. The actual voltage measurement points are not critical as long as the cal-
Rev. 1.5 Feb. 2005 DDR2 SDRAM culation is consistent. These notes are referenced in the “Timing parameters by speed grade” tables for DDR2-400/533/667 and DDR2-800. 29. Input waveform timing with differential data strobe enabled MR[bit10]=0, is referenced from the input sig- nal crossing at the VIH(ac) level to the differential data strobe crosspoint for a rising signal, and from the input signal crossing at the VIL(ac) level to the differential data strobe crosspoint for a falling signal applied to the device under test. 30. Input waveform timing with differential data strobe enabled MR[bit10]=0, is referenced from the input sig- nal crossing at the VIH(dc) level to the differential data strobe crosspoint for a rising signal and VIL(dc) to the differential data strobe crosspoint for a falling signal applied to the device under test. Differential Input waveform timing tHZ tRPST end point VOH + x mV VOH + 2x mV VOL + 2x mV VOL + x mV tLZ tRPRE begin point VTT + 2x mV VTT + x mV VTT - x mV VTT - 2x mV tLZ,tRPRE begin point = 2*T1-T2tHZ,tRPST end point = 2*T1-T2 <Test method for tLZ, tHZ, tRPRE and tRPST> tDS VDDQ VIH(ac) min VIH(dc) min VREF(dc) VIL(dc) max VIL(ac) max VSS DQS DQS tDHtDS tDH
Rev. 1.5 Feb. 2005 DDR2 SDRAM 31. Input waveform timing is referenced from the input signal crossing at the VIH(ac) level for a rising signal and VIL(ac) for a falling signal applied to the device under test. 32. Input waveform timing is referenced from the input signal crossing at the VIH(dc) level for a rising signal and VIL(dc) for a falling signal applied to the device under test. 33. tWTR is at lease two clocks (2 * tCK) independent of operation frequency. 34. Input waveform timing with single-ended data strobe enabled MR[bit10] = 1, is referenced from the input signal crossing at the VIH(ac) level to the single-ended data strobe crossing VIH/L(dc) at the start of its tran- sition for a rising signal, and from the input signal crossing at the VIL(ac) level to the single-ended data strobe crossing VIH/L(dc) at the start of its transition for a falling signal applied to the device under test. The DQS signal must be monotonic between Vil(dc)max and Vih(dc)min. 35. Input waveform timing with single-ended data strobe enabled MR[bit10] = 1, is referenced from the input signal crossing at the VIH(dc) level to the single-ended data strobe crossing VIH/L(ac) at the end of its transi- tion for a rising signal, and from the input signal crossing at the VIL(dc) level to the single-ended data strobe crossing VIH/L(ac) at the end of its transition for a falling signal applied to the device under test. The DQS signal must be monotonic between Vil(dc)max and Vih(dc)min. 36. tCKEmin of 3 clocks means CKE must be registered on three consecutive positive clock edges. CKE must remain at the valid input level the entire time it takes to achieve the 3 clocks of registeration. Thus, after any cKE transition, CKE may not transitioin from its valid level during the time period of tIS + 2*tCK + tIH. tIS VDDQ VIH(ac) min VIH(dc) min VREF(dc) VIL(dc) max VIL(ac) max VSS CK CK tIHtIS tIH
Rev. 1.5 Feb. 2005 DDR2 SDRAM
Revision History
Version 1.0 (Jan. 2004) - Initial Release Version 1.1 (Jun. 2004) - Added Lead-Free part number in ordering information. - Changed IDD2P - Corrected Typo Version 1.2 (Aug. 2004) - Corrected the part number in ordering information. Version 1.3 (Jan. 2005) - Revised current test AC spec condition - Added derating table Version 1.4 (Jan. 2005) - Corrected typo Version 1.5 (Feb. 2005) - Revised Input AC Logic Level for DDR2-667