55852U

SY55852U MICREL | Alldatasheet

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Technical content

SuperLite™ SY55852UMicrel, Inc. M9999-110705 hbwhelp@micrel.com or (408) 955-1690

DESCRIPTION

I 2.5GHz min. fMAX I 2.3V to 5.7V power supply I Single bit register memory I Synchronizes 1 bit of data to a clock I Optimized to work with SuperLite™ family I Fully differential I Accepts CML, PECL, LVPECL input logic levels I Source terminated CML outputs for fast edge rates I Available in a tiny 10-pin MSOP The SY55852U is a flip-flop used to synchronize data to a clock. Its differential output will reproduce and remember the value on its input at the rising edge of the clock. In addition, an asynchronous, level sensitive reset is provided. For a synchonous reset, the SY55851U AnyGate™ can be used. SY55852U inputs can be terminated with a single resistor between the true and complement pins of a given input. The SY55852U is a member of Micrel's SuperLite™ family of high-speed CML logic. This family features very small packaging and 2.3V to 5.7V operation.

FEATURES

SuperLite™ SY55852U

APPLICATIONS

I OC-48 communication systems FUNCTIONAL BLOCK DIAGRAM Rev.: D Amendment: /0 Issue Date: November 2005 SuperLite is a trademark of Micrel, Inc. DQ R CLOCK RESET DATA OUT SuperLite™

SuperLite™ SY55852UMicrel, Inc. M9999-110705 hbwhelp@micrel.com or (408) 955-1690 PACKAGE/ORDERING INFORMATION D /D CLK /CLK GND VCC /R R Q /Q 451 10 98 Top View MSOP 10-Pin MSOP (K10-1) Pin Number Pin Name Pin Function 1, 2 D, /D CML/PECL/LVPECL Input (Differential): This is the single bit of data that gets clocked in and remembered. 3, 4 CLK, /CLK CML/PECL/LVPECL Input (Differential): The rising edge of this signal is the clock signal that determines when the Boolean value at the data input gets stored. 5 GND Ground. 6, 7 Q, /Q CML Output (Differential): This is the output of the flip-flop. 8, 9 R, /R CML/PECL/LVPECL Input (Differential): This is an asynchronous active high level reset, that forces the flip-flop into a known state, namely zero. 10 VCC Power Supply. PIN DESCRIPTION D CLK R Q /Q XX1 0 1 X00 Q N-1 /QN-1 X10 Q N-1 /QN-1 0 00 1 1 01 0 TRUTH TABLE Ordering Information(1) Package Operating Package Lead Part Number Type Range Marking Finish SY55852UKC K10-1 Commercial 55852U Sn-Pb SY55852UKCTR (2) K10-1 Commercial 55852U Sn-Pb SY55852UKI K10-1 Industrial 55852U Sn-Pb SY55852UKITR (2) K10-1 Industrial 55852U Sn-Pb SY55852UKG (3) K10-1 Industrial 55852U with NiPdAu Pb-Free bar line indicator Pb-Free SY55852UKGTR (2, 3) K10-1 Industrial 55852U with NiPdAu Pb-Free bar line indicator Pb-Free Notes: 1. Contact factory for die availability. Dice are guaranteed at TA = 25°C, DC Electricals only. 2. Tape and Reel. 3. Pb-Free package recommended for new designs.

SuperLite™ SY55852UMicrel, Inc. M9999-110705 hbwhelp@micrel.com or (408) 955-1690 Absolute Maximum Ratings(Note 1) Operating Ratings(Note 2) Package Thermal Resistance MSOP ( θJA) Note 1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratlng conditions for extended periods may affect device reliability. Note 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. VCC = +2.3V to +5.7V; GND = 0V; TA = –40°C to +85°C; unless otherwise noted. Symbol Parameter Condition Min Typ Max Units VCC Power Supply Voltage 2.3 5.7 V ICC Power Supply Current 36 mA Note 1. The device is guaranteed to meet the DC specifications, shown in the table above, after thermal equilibrium has been established. The device is tested in a socket such that transverse airflow of ≥500lfpm is maintained. DC ELECTRICAL CHARACTERISTICS (Note 1) VCC = +2.3V to +5.7V; GND = 0V; TA = –40°C to +85°C; unless otherwise noted. Symbol Parameter Condition Min Typ Max Units VID Differential Input Voltage 100 mV VIH Input HIGH Voltage Note 2 1.6 — VCC V VIL Input LOW Voltage Note 2 1.5 — VCC – 0.1 V VOH Output HIGH Voltage No Load V CC – 0.020 VCC – 0.010 V CC V VOL Output LOW Voltage No Load V CC – 0.97 VCC – 0.825 VCC – 0.660 V VOS Output Voltage Swing No Load, Note 3 0.660 0.800 0.950 V 50Ω Environment, Note 4 0.400 V 100Ω Environment, Note 5 0.200 V R DRIVE Output Source Impedance 80 100 120 Ω Note 1. Equilibrium temperature. Note 2. Inputs must be biased to logic LOW or HIGH when VCC is less than 3.0V. Note 3. Actual voltage levels and differential swing will depend on customer termination scheme. Typically, a 400mV swing is available in the 100Ω environment and a 200mV swing in the 50Ω environment. Refer to the “CML Termination” diagram for more details. Note 4. See Figure 3a and 3b. Note 5. See Figure 4. CML DC ELECTRICAL CHARACTERISTICS (Note 1)

SuperLite™ SY55852UMicrel, Inc. M9999-110705 hbwhelp@micrel.com or (408) 955-1690 TIMING DIAGRAMS CLK DATA RESET Q 50% tH 50% tS tRR tpd 50%50% tpd VCC = 2.3V to 5.7V; GND = 0V; TA = –40°C to +85°C; unless noted. Symbol Parameter Condition Min Typ Max Units fMAX Max. Operating Frequency 2.5 GHz tpd Propagation Delay CLK to Q 400 ps R to Q 500 tS Set-Up Time 40 ps tH Hold Time 40 ps tRR Reset Recovery 400 ps tPW Minimum Pulse Width CLK to Q V CC < 3V 160 ps VCC ≥ 3V 140 R to Q 250 tr,tf CML Output Rise/Fall Times 35 150 ps (20% to 80%) Note 1. Tested using environment of Figure 3b, 50Ω load CML output. AC ELECTRICAL CHARACTERISTICS (Note 1)

SuperLite™ SY55852UMicrel, Inc. M9999-110705 hbwhelp@micrel.com or (408) 955-1690 10-PIN MSOP (K10-1) Rev. 00 MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated.