SY10E431 SY100E431 FINAL 3-BIT DIFFERENTIAL FLIP-FLOP DESCRIPTION FEATURES Differential D, clock and Q The SY10/100E431 are 3-bit flip-flops with differential clock, data input and data output. The asynchronous Set and Reset controls are edgetriggered rather than level controlled. This allows the user to rapidly set or reset the flip-flop and then continue clocking at the next clock edge without the necessity of de-asserting the set/reset signal (as would be the case with a level controlled set/reset). The E431 is also designed with larger internal swings, an approach intended to minimize the time spent crossing the threshold region and thus reduces the metastability susceptibility window. Extended 100E VEE range of -4.2V to -5.5V VBB output for single-ended use 1100MHz min. toggle frequency Edge-triggered asynchronous set and reset Fully compatible with Motorola MC10E/100E431 Available in 28-pin PLCC package BLOCK DIAGRAM PIN CONFIGURATION PIN NAMES Pin TRUTH TABLE(1) Function D[0:2], D[0:2] Differential Data Inputs CLK[0:2], CLK[0:2] Differential Clock Inputs Edge Triggered Set Inputs Dn CLKn Rn Sn Qn S[0:2] L Z L L L R[0:2] Edge Triggered Reset Inputs VBB Reference Output H Z L L H VBB X L Z L L Q[0:2], Q[0:2] Differential Data Outputs X L L Z H VCCO VCC to Output NOTE: 1. Z = LOW-to-HIGH transition. Rev.: D 1 Amendment: /0 Issue Date: November 2002 SY10E431 SY100E431 Micrel DC ELECTRICAL CHARACTERISTICS(2) VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND TA = 0C Symbol VBB Typ. Output Reference Voltage 10E 100E -1.38 -1.38 -- -- -- -- 150 -- -- 150 -- -- 110 110 132 132 -- -- 110 110 -1.5 -- 0 -1.5 -- Input HIGH Current IEE Power Supply Current 10E 100E Common Mode Range Max. Min. Typ. TA = +85C Min. IIH VCMR TA = +25C Parameter -1.27 -1.35 -1.26 -1.38 -- -- Max. Min. Typ. Max. -- -- -1.19 -1.26 -- -- 150 132 132 -- -- 110 127 132 152 0 -1.5 -- 0 -1.25 -1.31 -1.26 -1.38 Unit Condition V -- A -- mA -- V 1 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. 2. Specification for packaged product only. AC ELECTRICAL CHARACTERISTICS(4) VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND TA = 0C Symbol Parameter TA = +25C TA = +85C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit Condition MHz -- ps -- fMAX Max. Toggle Frequency 1100 1400 -- 1100 1400 -- 1100 1400 -- tPLH tPHL Propagation Delay to Output CLK (Diff) CLK (SE) R S 450 400 550 550 600 600 725 725 750 800 925 925 450 400 550 550 600 600 725 725 750 800 925 925 450 400 550 550 600 600 725 725 750 800 925 925 tS Set-up Time D R S 200 1000 1000 0 700 700 -- -- -- 200 1000 1000 0 700 700 -- -- -- 200 1000 1000 0 700 700 -- -- -- tH Hold Time, D 200 0 -- 200 0 -- 200 0 -- ps -- tPW Minimum Pulse Width, CLK 400 -- -- 400 -- -- 400 -- -- ps -- tskew Within-Device Skew -- 50 -- -- 50 -- -- 50 -- ps 2 VPP (AC) Minimum Input Swing 150 -- -- 150 -- -- 150 -- -- mV 3 tr tf Rise/Fall Time 20% to 80% 275 450 650 275 450 650 275 450 650 ps -- ps NOTES: 1. These set-up times define the minimum time the CLK or SET/RESET input must wait after the assertion of the RESET/SET input to assure the proper operation of the flip-flop. 2. Within-device skew is defined as identical transitions on similar paths through a device. 3. Minimum input swing for which AC parameters are guaranteed. 4. Specification for packaged product only. 1 1 PRODUCT ORDERING CODE Ordering Code Package Type Operating Range SY10E431JI J28-1 Industrial SY10E431JITR* J28-1 Industrial SY100E431JI J28-1 Industrial SY100E431JITR* J28-1 Industrial *Tape and Reel 2 SY10E431 SY100E431 Micrel 28 LEAD PLCC (J28-1) Rev. 03 3 SY10E431 SY100E431 Micrel MICREL, INC. TEL 1849 FORTUNE DRIVE SAN JOSE, CA 95131 + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB USA 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. (c) 2002 Micrel, Incorporated. 4