description features d flip-flop with set and reset pin names pin function d data inputs q data outputs s set r reset clk clock input pin configuration/block diagram sy10el31 sy100el31 final 475ps propagation delay 2.8ghz toggle frequency internal 75k ? input pull-down resistors available in 8-pin soic package 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. truth table (1) d s r clk q ll l z l hl l z h xh l x h xl h x l x h h x undef note: 1. z = low-to-high transition. soic top view 1 2 3 45 6 7 8 sv cc q v ee d r clk q s d r flip-flop 1 rev.: f amendment: /0 issue date: february 2003
2 sy10el31 sy100el31 micrel t a = ?0 ct a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. min. typ. max. unit f max maximum toggle 20 2.5 2.2 2.8 2.2 2.8 2.2 2.8 ghz frequency t plh propagation delay to ps t phl output clk 315 465 630 365 465 580 375 475 590 430 530 645 s, r 295 455 630 345 455 580 355 465 590 400 510 645 t s set-up time 150 0 150 0 150 0 150 0 ps t h hold time 250 100 250 100 250 100 250 100 ps t rr set/reset recovery 400 200 400 200 400 200 400 200 ps t pw minimum pulse width 400 400 400 400 ps clk, set, reset t r output rise/fall times q 100 225 350 100 225 350 100 225 350 100 225 350 ps t f (20% to 80%) ac electrical characteristics v ee = v ee (min.) to v ee (max.); v cc = gnd dc electrical characteristics t a = ?0 ct a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. min. typ. max. unit i ee power supply current ma 10el 27 32 18 27 32 18 27 32 18 27 32 100el 27 32 18 27 32 18 27 32 21 31 37 v ee power supply voltage v 10el ?.75 ?.2 ?.5 ?.75 ?.2 ?.5 ?.75 ?.2 ?.5 ?.75 ?.2 ?.5 100el ?.20 ?.5 ?.5 ?.20 ?.5 ?.5 ?.20 ?.5 ?.5 ?.20 ?.5 ?.5 i ih input high current 150 150 150 150 a v ee = v ee (min.) to v ee (max.); v cc = gnd product ordering code ordering package operating marking code type range code sy10el31zc z8-1 commercial hel31 sy10el31zctr* z8-1 commercial hel31 sy100el31zc z8-1 commercial xel31 sy100el31zctr* z8-1 commercial xel31 *tape and reel note 1. recommended for new designs. ordering package operating marking code type range code sy10el31zi (1) z8-1 industrial hel31 sy10el31zitr* (1) z8-1 industrial hel31 sy100el31zi (1) z8-1 industrial xel31 sy100el31zitr* (1) z8-1 industrial xel31 *tape and reel
3 sy10el31 sy100el31 micrel 8 lead soic .150" wide (z8-1) rev. 03
4 sy10el31 sy100el31 micrel micrel, inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 web http://www.micrel.com the information furnished by micrel in this datasheet is believed to be accurate and reliable. however, no responsibility is as sumed 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 malfu nction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intend ed 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 inj ury 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. ? 2003 micrel, incorporated.
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