tc7wt74fu 2005-05-20 1 toshiba cmos digital integr ated circuit silicon monolithic tc7wt74fu d-type flip flop with preset and clear the tc7wt74fu is high speed cmos d-flip flop f abricated with silicon gate cmos technology. it achieves the high speed op eration similar to equivalent bipolar schottky ttl while main taining the cmos low power dissipation. the input threshold levels ar e compatible with ttl output voltage. the signal level applied to the d-input is tranceferred to q-output during the positive goin g trasition of the ck pulse. clear and preset are indepe ndent of the ck and are accompished by setting the appropriate input low. all inputs are equipped with prot ection circuits against static dichage or transien t excess voltage. features ? high speed: f max = 53mhz(typ.) at v cc = 5 v ? low power dissipation: i cc = 2 a (max.) at ta = 25c ? compatible with ttl outputs: v il = 3 v(max.) at ta=25c ? output drive capability: 10 lsttl loads ? symmetrical output impedance: |i oh | = i ol = 4ma(min.) marking maximum ratings (ta = 25c) pin assignment (top view) characteristics symbol rating unit supply voltage range v cc ? 0.5~7 v dc input voltage v in ? 0.5~ v cc + 0.5 v dc output voltage v out ? 0.5~ v cc + 0.5 v input diode current i ik 20 ma output diode current i ok 20 ma dc output current i out 25 ma dc v cc /ground current i cc 25 ma power dissipation p d 300 mw storage temperature t stg ? 65~150 c lead temperature (10s) t l 260 c tc7wt74fu weight ssop8-p-0.65 : 0.02 g (typ.) type name w t 7 4 lot no. d 2 q 3 8 5 v cc q gnd 4 7 pr 6 clr 1 ck
tc7wt74fu 2005-05-20 2 truth table logic diagram inputs outputs clr pr d ck q q function l h x x l h clear h l x x h l preset l l x x h h ? h h l l h ? h h h h l ? h h x qn qn no change x: don?t care recommended operating conditions characteristics symbol rating unit supply voltage v cc 4.5~5.5 v input voltage v in 0~ v cc v output voltage v out 0~5.5 v operating temperature t opr ? 40~85 c input rise and fall time dt/dv 0~500 ns dc electrical characteristics ta = 25c ta = ? 40~85c characteristics symbol test condition v cc (v) min typ. max min max unit high level v ih 4.5~5.5 2.0 ? ? 2.0 ? input voltage low level v il 4.5~5.5 ? ? 0.8 ? 0.8 v i oh = ?20 a 4.5 4.4 4.5 ? 4.4 ? high level v oh v in = v il or v ih i oh = ? 4 ma 4.5 4.18 4.31 ? 4.13 ? v i ol = 20 a 4.5 ? 0.0 0.10 ? 0.10 output voltage low level v ol v in = v il or v ih i ol = 4 ma 4.5 ? 0.17 0.26 ? 0.33 v input leakage current i in v in = v cc or gnd 5.5 ? ? 0. 1 ? 1 a i cc v in = v cc or gnd 5.5 ? ? 2.0 ? 20.0 a quiescent supply current i cct per input: v in = 0.5 v or 2.4v other input: v cc or gnd 5.5 ? ? 2.0 ? 2.9 ? a q q p r ck d clr s c d r (7) (1) (2) (6) (5) (3)
tc7wt74fu 2005-05-20 3 timing requirements (input: t r = t f = 6 ns) ta = 25c ta = ? 40~85c characteristics symbol test condition v cc (v) typ limit limit unit 4.5 ? 25 29 maximum pulse frequency width (clock) t w (l) t w (h) 5.5 ? 20 23 ns 4.5 ? 30 34 maximum pulse frequency width ( clr , pr ) t w (l) 5.5 ? 25 28 ns 4.5 ? 25 29 minimum set-up time t s 5.5 ? 20 23 ns 4.5 ? 10 10 minimum hold time t h 5.5 ? 8 8 ns 4.5 ? 10 10 maximum removal time( clr , pr ) t rem 5.5 ? 10 10 ns 4.5 ? 22 16 clock frequency f 5.5 ? 25 19 mhz ac electrical char acteristics (c l = 15pf, v cc = 5v, ta = 25c) characteristics symbol test condition min. typ. max. unit output transition time t tlh t thl ? ? 6 12 ns propagation delay time (clock ? q, q) t plh t phl ? ? 17 28 ns propagation delay time ( clr , pr ? q, q ) t plh t phl ? ? 20 30 ns maximum clock time f max ? 24 53 ? mhz
tc7wt74fu 2005-05-20 4 ac electrical char acteristics (c l = 15pf, input t r = t f = 6ns) ta = 25c ta = ? 40~85c characteristics symbol test condition v cc (v) min. typ. max. min. max. unit 4.5 ? 8 15 ? 19 output transition time t tlh t thl ? 5.5 ? 7 13 ? 16 ns 4.5 ? 21 33 ? 41 propagation delay time (clock ? q, q) t plh t phl ? 5.5 ? 19 35 ? 37 ns 4.5 ? 23 35 ? 43 propagation delay time ( clr , pr ? q, q) t plh t phl ? 5.5 ? 20 32 ? 40 ns 4.5 22 48 ? 16 ? maximum clock frequency f max ? 5.5 25 53 ? 19 ? mhz input capacitance c in ? ? 5 10 ? 10 pf power dissipation capacitance c pd ? 34 ? ? 10 pf note: c pd is defined as the value of the internal equivalent capacitance which is ca lculated from the operating current consumption without load. average operating current can be obtained by the equation: i cc (opr) = c pd k v cc k f in + i cc
tc7wt74fu 2005-05-20 5 package dimensions weight: 0.02 g (typ.)
tc7wt74fu 2005-05-20 6 the information contained herein is subject to change without notice. the information contained herein is presented only as a guide for the applications of our products. no responsibility is assumed by toshiba for any infringements of patents or other rights of the third parti es which may result from its use. no license is granted by im plication or otherwise under any patent or patent rights of toshiba or others. toshiba is continually working to im prove the quality and reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inhe rent electrical sensitivity and vulnerability to physical stress. it is the responsibility of the buyer, when utilizing toshiba produc ts, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such toshiba products could cause loss of human life, bodily injury or damage to property. in developing your designs, please ensure that toshiba products are used within s pecified operating ranges as set forth in the most recent toshiba products specific ations. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semicon ductor devices,? or ?toshiba semiconductor reliability handbook? etc.. the toshiba products listed in this document are intend ed for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipmen t, industrial robotics, domestic appliances, etc.). these toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malf unction or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage include atomic ener gy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. uninte nded usage of toshiba products listed in this document shall be made at the customer?s own risk. toshiba products should not be embedded to the downstr eam products which are prohibited to be produced and sold, under any law and regulations. 030619eaa restrictions on product use
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