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| D FLIP-FLOP WITH SET AND RESET SY10EL31 SY100EL31 FEATURES s s s s 475ps propagation delay 2.8GHz toggle frequency Internal 75K input pull-down resistors Available in 8-pin SOIC package DESCRIPTION The SY10/100EL31 are D flip-flops with set and reset. The devices are functionally equivalent to the E131 devices, with higher performance capabilities. With propagation delays and output transition times significantly faster than the E131, the EL31 is ideally suited for those applications which require the ultimate in AC performance. Both the set and reset inputs are asynchronous, level triggered signals. Data enters the master portion of the flip-flop when the clock is LOW and is transferred to the slave, and thus the outputs, upon a positive transition of the clock. PIN CONFIGURATION/BLOCK DIAGRAM PIN NAMES Pin D Data Inputs Data Outputs Set Reset Clock Input Function S D CLK R 1 S 2 3 R 4 D Flip-Flop 8 7 6 5 VCC Q Q VEE Q S R CLK TRUTH TABLE(1) SOIC TOP VIEW D L H X X X S L L H L H R L L L H H CLK Z Z X X X Q L H H L Undef NOTE: 1. Z = LOW-to-HIGH transition. Rev.: E Amendment: /0 1 Issue Date: August, 1998 Micrel SY10EL31 SY100EL31 DC ELECTRICAL CHARACTERISTICS VEE = VEE (Min.) to VEE (Max.); VCC = GND TA = -40C Symbol IEE Parameter Power Supply Current 10EL 100EL Power Supply Voltage 10EL 100EL Input HIGH Current Min. -- -- -4.75 -4.20 -- Typ. 27 27 -5.2 -4.5 -- Max. 32 32 -5.5 -5.5 150 Min. 18 18 -4.75 -4.20 -- TA = 0C Typ. 27 27 -5.2 -4.5 -- Max. 32 32 -5.5 -5.5 150 TA = +25C Min. 18 18 -4.75 -4.20 -- Typ. 27 27 -5.2 -4.5 -- Max. 32 32 -5.5 -5.5 150 TA = +85C Min. 18 21 -4.75 -4.20 -- Typ. 27 31 -5.2 -4.5 -- Max. 32 37 V -5.5 -5.5 150 A Unit mA VEE IIH AC ELECTRICAL CHARACTERISTICS VEE = VEE (Min.) to VEE (Max.); VCC = GND TA = -40C Symbol fMAX tPLH tPHL tS tH tRR tPW tr tf Parameter Maximum Toggle Frequency Propagation Delay to Output CLK S, R Set-up Time Hold Time Set/Reset Recovery Minimum Pulse Width CLK, Set, Reset Output Rise/Fall Times Q (20% to 80%) Min. 20 Typ. 2.5 Max. Min. -- 2.2 TA = 0C Typ. Max. 2.8 -- 2.2 TA = +25C Min. Typ. 2.8 Max. -- 2.2 TA = +85C Min. Typ. 2.8 Max. -- Unit GHz ps 315 295 150 250 400 400 100 465 455 0 100 200 -- 225 630 630 -- -- -- -- 350 365 345 150 250 400 400 100 465 455 0 100 200 -- 225 580 580 -- -- -- -- 350 375 355 150 250 400 400 100 475 465 0 100 200 -- 225 590 590 -- -- -- -- 350 430 400 150 250 400 400 100 530 510 0 100 200 -- 225 645 645 -- -- -- -- 350 ps ps ps ps ps PRODUCT ORDERING CODE Ordering Code SY10EL31ZC SY10EL31ZCTR SY100EL31ZC SY100EL31ZCTR Package Type Z8-1 Z8-1 Z8-1 Z8-1 Operating Range Commercial Commercial Commercial Commercial 2 Micrel SY10EL31 SY100EL31 8 LEAD SOIC .150" WIDE (Z8-1) Rev. 03 3 Micrel SY10EL31 SY100EL31 MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA FAX + 1 (408) 980-9191 + 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. (c) 2000 Micrel Incorporated 4 |
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