5V/3.3V DUAL DIFFERENTIAL DATA AND CLOCK D FLIP-FLOP w/SET AND RESET DESCRIPTION FEATURES ■ 3.3V and 5V power supply option ■ Differential D, CLK and Q ■ Extended VEE range of –3.0V to –5.5V The SY100EL29V is a dual differential register with differential data (inputs and outputs) and clock. The registers are triggered by a positive transition of the positive clock (CLK) input. A HIGH on the Reset (Rx) asynchronously resets the appropriate register so that the Q outputs go LOW. A HIGH on the Set (S x ) asynchronously resets the appropriate register so that the Q outputs go HIGH. The Set and Reset inputs cannot both be HIGH simultaneously. The differential input structures are clamped so that the inputs of unused registers can be left open without upsetting the bias network of the devices. The clamping action will assert the /D and the /CLK sides of the inputs. The noninverting input will pull down to VEE and the inverting input will be biased around VCC/2. Because of the edge-triggered flip-flop nature of the devices, simultaneously opening both the clock and data inputs will result in an output which reaches an unidentified but valid state. The fully differential design of the devices makes them ideal for very high frequency applications where a registered data path is necessary. ■ ■ ■ ■ VBB output for single-ended use 1100MHz min. toggle frequency Asynchronous Reset and Set Fully compatible with Motorola MC100LVEL29 and MC100EL29 ■ Available in 20-pin SOIC package PIN CONFIGURATION/BLOCK DIAGRAM R0 VCC Q0 20 19 18 Q R D 1 D0 2 ClockWorks™ SY100EL29V Q0 17 S0 16 S1 VCC Q1 15 14 13 Q Q S CLK 3 4 5 6 Q R CLK S D 7 D0 CLK0 CLK0 VBB D1 Q1 VEE 12 11 8 9 10 D1 CLK1 CLK1 R1 SOIC TOP VIEW PIN NAMES TRUTH TABLE Pin Function R S D CLK Q /Q CLK, /CLK Differential Clock Inputs L L L Z L H D[0:1], /D[0:1] Differential Data Inputs L L H Z H L Q[0:1], /Q[0:1] Differential Data Outputs H L X X L H R0, R1 Reset Inputs L H X X H L S0, S1 Set Inputs H H X X Undef Undef VBB VBB Reference Output VCC VCC VEE VEE NOTE: Z = LOW-to-HIGH Transition Rev.: B 1 Amendment: /0 Issue Date: February 2000 ClockWorks™ SY100EL29V Micrel ABSOLUTE MAXIMUM RATINGS(1) Symbol Rating Value Unit VEE Power Supply (VCC = 0V) –8.0 to 0 VDC VI(3) Input Voltage (VCC = 0V) 0 to –6.0 VDC IOUT Output Current –Continuous –Surge 50 100 mA TA Operating Temperature Range –40 to +85 °C –5.7 to –3.0 V VEE Operating Range(1),(2) NOTES: 1. Absolute maximum rating, beyond which, device life may be impaired, unless otherwise specified on an individual data sheet. 2. Parametric values specified at: 100EL29V Series: –3.0V to –5.5V. 3. In PECL mode operation, VI (Max) = VCC. DC ELECTRICAL CHARACTERISTICS VEE = –3.0V to +5.5V; VCC = GND TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit IEE Power Supply Current — 50 — 50 — 30 50 — 50 mA IIH Input HIGH Current — 150 — 150 — — 150 — 150 µA IIL Input LOW Current /CLK, /Dn 0.5 –300 — — 0.5 –300 — — 0.5 –300 — — — — 0.5 –300 — — µA VBB Output Reference Voltage –1.38 –1.26 –1.38 –1.26 –1.38 — –1.26 –1.38 –1.26 V 2 ClockWorks™ SY100EL29V Micrel AC ELECTRICAL CHARACTERISTICS VEE = –3.0V to +5.5V; VCC = GND TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit fMAX Max. Toggle Frequency 1.1 — 1.1 — 1.1 — — 1.1 — GHz tPLH tPHL Propagation Delay to Output 480 450 680 670 490 450 690 670 500 450 — — 700 670 520 450 720 670 ps tS Set-Up Time, D 200 — 200 — 200 — — 200 — ps tH Hold Time, D 150 — 150 — 150 — — 150 — ps tRR Reset Recovery Time 300 — 300 — 300 — — 300 — ps tPW Minimum Pulse Width CLK, Set, Reset 400 — 400 — 400 — — 400 — ps VCMR Common Mode Range(1) <500mV ≥500mV –2.0 –1.8 –0.4 –0.4 –2.1 –1.9 –0.4 –0.4 –2.1 –1.9 — — –0.4 –0.4 –2.1 –1.9 –0.4 –0.4 VPP (AC) Minimum Input Swing(2) 150 — 150 — 150 — — 150 — mV tr tf Output Rise/Fall Time Q (20–80%) 280 550 280 550 280 330 550 280 550 ps CLK S, R V NOTES: 1. VCMR is referenced to the most positive side of the differential input signal. Normal operation is obtained when the input signals are within the VCMR range and the input swing is greater than VPP(Min.) and <1V. The lower end of the VCMR range varies 1:1 with VEE. The numbers in the spec table assume a nominal VEE = –3.3V. Note for PECL operation, the VCMR(Min) will be fixed at 3.3V – |VCMR(Min)|. 2. Minimum input swing for which AC parameters are guaranteed. PRODUCT ORDERING CODE Ordering Code 3 Package Type Operating Range SY100EL29VZC Z20-1 Commercial SY100EL29VZCTR Z20-1 Commercial ClockWorks™ SY100EL29V Micrel 20 LEAD SOIC .300" WIDE (Z20-1) Rev. 03 MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA + 1 (408) 980-9191 FAX + 1 (408) 914-7878 WEB http://www.micrel.com This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. © 2000 Micrel Incorporated 4