IDT74FCT16244T IDT | Alldatasheet
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Integrated Device Technology, Inc. FUNCTIONAL BLOCK DIAGRAM 1Y1 1Y2 1Y3 1Y4 1A1 1A2 1A3 1A4 2OE 2A1 2A2 2A3 2A4 2Y1 2Y2 2Y3 2Y4 2544 drw 01 1OE 3OE 3A1 3A2 3A3 3A4 3Y1 3Y2 3Y3 3Y4 4OE 4A1 4A2 4A3 4A4 4Y1 4Y2 4Y3 4Y4 2544 drw 02The IDT logo is a registered trademark of Integrated Device Technology, Inc. MILITARY AND COMMERCIAL TEMPERATURE RANGES OCTOBER 1996 1996 Integrated Device Technology, Inc. 5.2 DSC-2544/9 FAST CMOS 16-BIT BUFFER/LINE DRIVER IDT54/74FCT16244T/AT/CT/ET IDT54/74FCT162244T/AT/CT/ET IDT54/74FCT166244T/AT/CT IDT54/74FCT162H244T/AT/CT/ET FEATURES:
- Common features: – 0.5 MICRON CMOS Technology – High-speed, low-power CMOS replacement for ABT functions – Typical t SK (o) (Output Skew) < 250ps – Low input and output leakage ≤ 1µA (max.) – ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) – Packages include 25 mil pitch SSOP, 19.6 mil pitch TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack – Extended commercial range of -40°C to +85°C
- Features for FCT16244T/AT/CT/ET: – High drive outputs (-32mA IOH , 64mA IOL ) – Power off disable outputs permit “live insertion” – Typical V OLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25°C
- Features for FCT162244T/AT/CT/ET: – Balanced Output Drivers:±24mA (commercial), ±16mA (military) – Reduced system switching noise – Typical V OLP (Output Ground Bounce) < 0.6V at VCC = 5V,TA = 25°C
- Features for FCT166244T/AT/CT: – Light Drive Balanced Output: ±8mA (commercial), ±6mA (military) – Minimal system switching noise – Typical V OLP (Output Ground Bounce) < 0.25V at VCC = 5V,TA = 25°C
- Features for FCT162H244T/AT/CT/ET: – Bus-Hold retains last active bus state during 3-state – Eliminates the need for external pull up resistors DESCRIPTION: The 16-Bit Buffer/Line Driver is for bus interface or signal buffering applications requiring high speed and low power dissipation. These devices have a flow through pin organization, and shrink packaging to simplify board layout. All inputs are designed with hysteresis for improved noise margin. The three-state controls allow independent 4-bit, 8-bit or combined 16-bit operation. These parts are plug in replacements for 54/74ABT16244 where higher speed, lower noise or lower power dissipation levels are desired. The FCT16244T/AT/CT/ET are ideally suited for driving high capacitance loads (>200pF) and low impedance backplanes. These "high drive" buffers are designed with power off disable capability to allow "live insertion" of boards when used in a backplane interface. The FCT162244T/AT/CT/ET have balanced output current levels and current limiting resistors. These offer low ground bounce, minimal undershoot, and controlled output fall times, reducing the need for external series terminating resistors while still providing very high speed operation for loads of less than 200pF. The FCT166244T/AT/CT are suited for very low noise, point-to-point driving where there is a single receiver, or a very light lumped load (<100pF). The buffers are designed to limit the output current to levels which will avoid noise and ringing on the signal lines without using external series terminating resistors. The FCT162H244T/AT/CT/ET have "Bus-Hold" which re- tains the input's last state whenever the input goes to high impedance. This prevents "floating" inputs and eliminates the need for pull-up/down resistors.
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 5.2 2 PIN CONFIGURATIONS 1Y1 GND 1Y3 VCC 1OE GND 3Y2 GND VCC GND 1Y2 1Y4 2Y1 2Y2 2Y3 2Y4 3Y1 3Y3 3Y4 4Y1 4Y3 4Y4 4Y2 4OE 1A1 1A2 GND 1A3 1A4 VCC 2A1 2A2 2A3 2A4 3A1 3A2 3A3 3A4 VCC 4A1 4A3 4A4 4A2 GND GND GND 2OE 3OE 2544 drw 04 CERPACK TOP VIEW E48-1 PIN DESCRIPTION 2544 tbl 01NOTE: 1. On FCT16xH these pins have “Bus-hold”. All other pins are standard inputs, outputs or I/Os. Pin Names Description xOE 3–State Output Enable Inputs (Active LOW) xAx Data Inputs (1) xYx 3-State Outputs 1Y1 GND 1Y3 VCC GND 3Y2 GND VCC GND 1Y2 1Y4 2Y1 2Y2 2Y3 2Y4 3Y1 3Y3 3Y4 4Y1 4Y3 4Y4 4Y2 4OE 1A1 1A2 GND 1A3 1A4 VCC 2A1 2A2 2A3 2A4 3A1 3A2 3A3 3A4 VCC 4A1 4A3 4A4 4A2 GND GND GND 2OE 3OE 2544 drw 03 SSOP/ TSSOP/TVSOP TOP VIEW SO48-1 SO48-2 SO48-3 1OE
5.2 3 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES NOTE: 1. This parameter is measured at characterization but not tested. CAPACITANCE (TA = +25°C, f = 1.0MHz) FUNCTION TABLE (1) 2544 lnk 04 NOTE: 1. H = HIGH Voltage Level X = Don’t Care L = LOW Voltage Level Z = High Impedance 2544 tbl 02 Symbol Parameter (1) Conditions Typ. Max. Unit CIN Input Capacitance VIN = 0V 3.5 6.0 pF COUT Output Capacitance VOUT = 0V 3.5 8.0 pF ABSOLUTE MAXIMUM RATINGS (1) DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (STANDARD PARTS) Following Conditions Apply Unless Otherwise Specified: Commercial: TA = –40°C to +85°C, VCC = 5.0V ± 10%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10% Inputs Outputs xOEOE xAx xYx LLL LH H HXZ Symbol Parameter Test Conditions (1) Min. Typ.(2) Max. Unit VIH Input HIGH Level Guaranteed Logic HIGH Level 2.0 — — V VIL Input LOW Level Guaranteed Logic LOW Level — — 0.8 V II H Input HIGH Current (Input pins)(5) VCC = Max. V I = VCC — — ±1 µA Input HIGH Current (I/O pins)(5) — — ±1 II L Input LOW Current (Input pins)(5) V I = GND — — ±1 Input LOW Current (I/O pins)(5) — — ±1 IOZH High Impedance Output Current VCC = Max. V O = 2.7V — — ±1 µA IOZL (3-State Output pins)(5) VO = 0.5V — — ±1 VIK Clamp Diode Voltage V CC = Min., IIN = –18mA — –0.7 –1.2 V IOS Short Circuit Current V CC = Max., VO = GND (3) –80 –140 –225 mA VH Input Hysteresis — — 100 — mV ICCL ICCH ICCZ Quiescent Power Supply Current VCC = Max., VIN = GND or VCC — 5 500 µA 2544 lnk 05 NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 5.0V, +25°C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. Duration of the condition can not exceed one second. 5. The test limit for this parameter is ± 5µA at T A = –55°C. Symbol Description Max. Unit VTERM (2) Terminal Voltage with Respect to GND –0.5 to +7.0 V VTERM (3) Terminal Voltage with Respect to GND –0.5 to VCC +0.5 V TSTG Storage Temperature –65 to +150 °C IOUT DC Output Current –60 to +120 mA NOTES: 1. Stresses greater than those listed under ABSOLUTE 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 operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. All device terminals except FCT162XXXT and FCT166XXXT output and I/O terminals. 3. Output and I/O terminals for FCT162XXXT and FCT166XXXT. 2544 lnk 03
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 5.2 4 DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (BUS-HOLD) Following Conditions Apply Unless Otherwise Specified: Commercial: TA = –40°C to +85°C, VCC = 5.0V ± 10%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10% 2544 lnk 06 Symbol Parameter Test Conditions (1) Min. Typ.(2) Max. Unit VIH Input HIGH Level Guaranteed Logic HIGH Level 2.0 — — V VIL Input LOW Level Guaranteed Logic LOW Level — — 0.8 V II H Input Standard Input (5) VCC = Max. V I = VCC —— ±1 µA HIGH Standard I/O (5) —— ±1 Current(4) Bus-hold Input — — ±100 Bus-hold I/O — — ±100 II L Input Standard Input (5) VI = GND — — ±1 LOW Standard I/O (5) —— ±1 Current(4) Bus-hold Input — — ±100 Bus-hold I/O — — ±100 IBHH Bus Hold Bus-hold Input V CC = Min. V I = 2.0V –50 — — µA IBHL Sustain Current(4) VI = 0.8V +50 — — IOZH High Impedance Output Current VCC = Max. V O = 2.7V — — ±1 µA IOZL (3-State Output pins)(5,6) VO = 0.5V — — ±1 VIK Clamp Diode Voltage V CC = Min., IIN = –18mA — –0.7 –1.2 V IOS Short Circuit Current V CC = Max., VO = GND (3) –80 –140 –225 mA VH Input Hysteresis — — 100 — mV ICCL ICCH ICCZ Quiescent Power Supply Current VCC = Max., VIN = GND or VCC — 5 500 µA NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 5.0V, +25°C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. Pins with Bus-hold are identified in the pin description. 5. The test limit for this parameter is ± 5µA at T A = –55°C. 6. Does not include Bus-hold I/O pins.
5.2 5 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES OUTPUT DRIVE CHARACTERISTICS FOR FCT16244T Symbol Parameter Test Conditions (1) Min. Typ.(2) Max. Unit IO Output Drive Current V CC = Max., VO = 2.5V(3) –50 —– 180 mA VOH Output HIGH Voltage V CC = Min. I OH = –3mA 2.5 3.5 — V VIN = VIH or VIL IOH = –12mA MIL. IOH = –15mA COM'L. 2.4 3.5 — V IOH = –24mA MIL. IOH = –32mA COM'L.(4) 2.0 3.0 — V VOL Output LOW Voltage V CC = Min. VIN = VIH or VIL IOL = 48mA MIL. IOL = 64mA COM'L. — 0.2 0.55 V IOFF Input/Output Power Off Leakage(5) VCC = 0V, VIN or VO ≤ 4.5V — — ±1 µA OUTPUT DRIVE CHARACTERISTICS FOR FCT162244T 2544 lnk 07 2544 lnk 08 OUPUT DRIVE CHARACTERISTICS FOR FCT166244T Symbol Parameter Test Conditions (1) Min. Typ.(2) Max. Unit IODL Output LOW Current V CC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3) 16 48 96 mA IODH Output HIGH Current V CC = 5V, VIN = VIH or V IL,VOUT = 1.5V(3) –16 –48 –96 mA VOH Output HIGH Voltage V CC = Min. VIN = VIH or VIL IOH = –6mA MIL. IOH = –8mA COM'L. 2.4 3.3 — V VOL Output LOW Voltage V CC = Min. VIN = VIH or VIL IOL = 6mA MIL. IOL = 8mA COM'L. — 0.3 0.55 V 2544 lnk 09NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 5.0V, +25°C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. Duration of the condition can not exceed one second. 5. The test limit for this parameter is ± 5µA at T A = –55°C. Symbol Parameter Test Conditions (1) Min. Typ.(2) Max. Unit IODL Output LOW Current V CC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3) 60 115 200 mA IODH Output HIGH Current V CC = 5V, VIN = VIH or V IL, VOUT = 1.5V(3) –60 –115 –200 mA VOH Output HIGH Voltage V CC = Min. VIN = VIH or VIL IOH = –16mA MIL. IOH = –24mA COM'L. 2.4 3.3 — V VOL Output LOW Voltage V CC = Min. VIN = VIH or VIL IOL = 16mA MIL. IOL = 24mA COM'L. — 0.3 0.55 V
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 5.2 6 POWER SUPPLY CHARACTERISTICS 2544 tbl 10NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25°C ambient. 3. Per TTL driven input (VIN = 3.4V). All other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the I CC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ΔICC DH N T + ICCD (fCP N CP /2 + fiN i) ICC = Quiescent Current (ICCL , ICCH and ICCZ ) ΔICC = Power Supply Current for a TTL High Input (VIN = 3.4V) D H = Duty Cycle for TTL Inputs High N T = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) N CP = Number of Clock Inputs at fCP fi = Input Frequency N i = Number of Inputs at fi Symbol Parameter Test Conditions (1) Min. Typ.(2) Max. Unit ΔICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = 3.4V(3) — 0.5 1.5 mA ICCD Dynamic Power Supply Current (4) VCC = Max. Outputs Open xOE = GND One Input Toggling 50% Duty Cycle V IN = VCC VIN = GND — 60 100 µA/ MHz IC Total Power Supply Current(6) VCC = Max. Outputs Open fi = 10MHz V IN = VCC VIN = GND — 0.6 1.5 mA 50% Duty Cycle xOE = GND One Bit Toggling VIN = 3.4V VIN = GND — 0.9 2.3 VCC = Max. Outputs Open fi = 2.5MHz V IN = VCC VIN = GND — 2.4 4.5 (5) 50% Duty Cycle xOE = GND Sixteen Bits Toggling VIN = 3.4V VIN = GND — 6.4 16.5 (5)
5.2 7 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT16244T/FCT162244T 2544 tbl 11 2544 tbl 12NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design. FCT16244T/162244T/166244T FCT16244AT/162244AT/166244AT Com'l. Mil. Com'l. Mil. tPLH tPHL Propagation Delay xAx to xYx C L = 50pF R L = 500Ω tPZH tPZL tPHZ tPLZ tSK (o) Output Skew (3) — 0.5 — 0.5 — 0.5 — 0.5 ns FCT16244CT/162244CT/166244CT FCT16244ET/162244ET Com'l. Mil. Com'l. Mil. tPLH tPHL Propagation Delay xAx to xYx C L = 50pF R L = 500Ω tPZH tPZL tPHZ tPLZ tSK (o) Output Skew (3) — 0.5 — 0.5 — 0.5 — — ns
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 5.2 8 SWITCH POSITION TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTS DEFINITIONS: C L= Load capacitance: includes jig and probe capacitance. R T = Termination resistance: should be equal to ZOUT of the Pulse Generator. 2544 lnk 13 Test Switch Disable Low Enable Low Closed All Other Tests Open Open Drain Pulse Generator R T D.U.T. V CC VIN C L V OUT 50pF 500Ω 500Ω 7.0V 1.5V 1.5V 1.5V 1.5V DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL tSU tH tREM tSU tH HIGH-LOW-HIGH PULSE LOW-HIGH-LOW PULSE tW 1.5V 1.5V SAME PHASE INPUT TRANSITION 1.5V 1.5V VOH tPLH OUTPUT OPPOSITE PHASE INPUT TRANSITION 1.5V tPLH tPHL tPHL VOL CONTROL INPUT 1.5V 3.5V OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH SWITCH CLOSED SWITCH OPEN VOL 0.3V 0.3V tPLZtPZL tPZH tPHZ 3.5V 1.5V 1.5V ENABLE DISABLE VOH PRESET CLEAR CLOCK ENABLE ETC. SET-UP, HOLD AND RELEASE TIMES PULSE WIDTH 2544 drw 05 ENABLE AND DISABLE TIMESPROPAGATION DELAY 2544 drw 07 2544 drw 06 NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH 2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns 2544 drw 09 2544 drw 08
5.2 9 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
Temp. Range XXXX Device Type X Package X Process Blank B PV PA PF E 244T 244AT 244CT 244ET Commercial MIL-STD-883, Class B Shrink Small Outline Package (SO48-1) Thin Shrink Small Outline Package (SO48-2) Thin Very Small Outline Package (SO48-3) CERPACK (E48-1) Non-Inverting 16-Bit Buffer/Line Driver –55 °C to +125°C –40°C to +85°C FCT 2544 drw 10 X Drive Blank H Standard Bus-hold X Bus Hold 162 166 16-Bit High Drive 16-Bit Balanced Drive 16-Bit Light Drive