TC7WT74FU 2009-01-22 1 toshiba cmos digital integrat ed ci rcuit silicon monolithic TC7WT74FU d-type flip-flop with preset and clear the TC7WT74FU is high speed cm os d-type flip-flop fabricated with silicon gate cmos technology. it achieves the high speed operatio n similar to equivalent bipolar schottky ttl while maintaining the cmos low power dissipation. the input threshold levels are com patible with ttl output voltage. the signal level applied to the d-input is tranceferred to q-output during the positive going trasition of the ck pulse. clear and preset are independent of the ck and are accompished by setting the appropriate input low. all inputs are equipped with protection circuits against static dichage or transient excess voltage. features ? high speed: f max = 53 mhz(typ.) at v cc = 5 v ? low power dissipation: i cc = 2 a (max) at ta = 25c ? compatible with ttl inputs: v il = 0.8 v(max) at ta=25c ? output drive capability: 10 lsttl loads ? symmetrical output impedance: |i oh | = i ol = 4 ma (min) absolute maximum ratings (ta = 25c) marking characteristics symbol rating unit supply voltage range v cc ? 0.5 to 7 v dc input voltage v in ?0.5 to v cc + 0.5 v dc output voltage v out ?0.5 to 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 to 150 c lead temperature (10s) t l 260 c note: using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. please design the appropriate reliability upon reviewing the toshiba semiconductor reliability handbook (?handling precautions?/?derating concept and methods?) and individual reliability data (i.e. reliability test report and estimated failure rate, etc). 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 pin assignment (top view) (sm8)
TC7WT74FU 2009-01-22 2 truth table iec logic symbol 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 n q no change x: don?t care operating ranges characteristics symbol rating unit supply voltage v cc 4.5 to 5.5 v input voltage v in 0 to v cc v output voltage v out 0 to v cc v operating temperature t opr ? 40 to 85 c input rise and fall time t r , t f 0 to 500 ns dc electrical characteristics ta = 25c ta = ? 40 to 85c characteristics symbol test condition v cc (v) min typ. max min max unit high level v ih ? 4.5 to 5.5 2.0 ? ? 2.0 ? input voltage low level v il ? 4.5 to 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 ma q q p r ck d clr s c d r (7) (1) (2) (6) (5) (3)
TC7WT74FU 2009-01-22 3 timing requirements (input: t r = t f = 6 ns) ta = 25c ta = ? 40 to 85c characteristics symbol test condition v cc (v) typ limit limit unit 4.5 ? 25 29 minimum pulse width (clock) t w (l) t w (h) ? 5.5 ? 20 23 ns 4.5 ? 30 34 minimum pulse 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 minimum 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 frequency f max ? 24 53 ? mhz
TC7WT74FU 2009-01-22 4 ac electrical char acteristics (c l = 50pf, input t r = t f = 6 ns) ta = 25c ta = ? 40 to 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 30 ? 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 (note) ? 34 ? ? ? 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 ? v cc ? f in + i cc
TC7WT74FU 2009-01-22 5 package dimensions weight: 0.02 g (typ.)
TC7WT74FU 2009-01-22 6 restrictions on product use ? toshiba corporation, and its subsidiaries and affiliates (collect ively ?toshiba?), reserve the right to make changes to the in formation in this document, and related hardware, software an d systems (collectively ?product?) without notice. ? this document and any information herein may not be reproduc ed without prior written permission from toshiba. even with toshiba?s written permission, reproduc tion is permissible only if reproducti on is without alteration/omission. ? though toshiba works continually to improve product?s quality and reliability, product can malfunction or fail. customers are responsible for complying with safety standards and for prov iding adequate designs and safeguards for their hardware, software and systems which minimize risk and avoid situat ions in which a malfunction or failure of product could cause loss of human life, b odily injury or damage to property, including data loss or corruption. before customers use the product, create designs including the product, or incorporate the product into their own applications, cu stomers must also refer to and comply with (a) the latest ve rsions of all relevant toshiba information, including without limitation, this document, the specifications, the data sheets and application notes for product and the precautions and condi tions set forth in the ?toshiba se miconductor reliability handbook? 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