TC74ACT273P/f 2007-10-01 1 toshiba cmos digital integrat ed ci rcuit silicon monolithic TC74ACT273P,tc74act273f octal d-type flip flop with clear the tc74act273 is an advanced high speed cmos octal d-type flip flop fabricated with silicon gate and double-layer metal wiring c 2 mos technology. it achieves the high speed op eration similar to equivalent bipolar schottky ttl while main taining the cmos low power dissipation. this device may be used as a level converter for interfacing ttl or nmos to high speed cmos . the inputs are compatible with ttl, nmos and cmos output voltage levels. information signals applied to d inputs are transferred to the q outputs on the positive going edge of the clock pulse. when the clr input is held ?l? , the q outputs are at a low logic level independent of the other inputs. all inputs are equipped with prot ection circuits against static discharge or transi ent excess voltage. features ? high speed: f max = 170 mhz (typ.) at v cc = 5 v ? low power dissipation: i cc = 8 a (max) at ta = 25c ? compatible with ttl outputs: v il = 0.8 v (max) v ih = 2.0 v (min) ? symmetrical output impedance: |i oh | = i ol = 24 ma (min) capability of driving 50 transmission lines. ? balanced propagation delays: t plh ? t phl ? pin and function compatible with 74f273 pin assignment TC74ACT273P tc74act273f weight dip20-p-300-2.54a : 1.30 g (typ.) sop20-p-300-1.27a : 0.22 g (typ.)
TC74ACT273P/f 2007-10-01 2 iec logic symbol truth table inputs output clr d ck q function l x x l clear h l l ? h h h ? h x q n no change x: don?t care system diagram
TC74ACT273P/f 2007-10-01 3 absolute maximum ratings (note 1) characteristics symbol rating unit supply voltage range v cc ?0.5 to 7.0 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 50 ma dc output current i out 50 ma dc v cc /ground current i cc 200 ma power dissipation p d 500 (dip) (note 2)/180 (sop) mw storage temperature t stg ?65 to 150 c note 1: exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in ic performance or even destruction. using continuously under heavy loads (e.g. the app lication 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 temper ature/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). note 2: 500 mw in the range of ta = ? 40 to 65c. from ta = 65 to 85c a derating factor of ? 10 mw/c should be applied up to 300 mw. operating ranges (note) 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 dt/dv 0 to 10 ns/v note: the operating ranges must be maintained to ensure the normal oper ation of the device. unused inputs must be tied to either vcc or gnd.
TC74ACT273P/f 2007-10-01 4 electrical characteristics dc characteristics test condition ta 25c ta 40 to 85c characteristics symbol v cc (v) min typ. max min max unit high-level input voltage v ih 4.5 to 5.5 2.0 2.0 v low-level input voltage v il 4.5 to 5.5 0.8 0.8 v high-level output voltage v oh v in v ih or v il i oh 50 p a i oh 24 ma i oh 75 ma (note) 4.5 4.5 5.5 4.4 3.94 4.5 4.4 3.80 3.85 v low-level output voltage v ol v in v ih or v il i ol 50 p a i ol 24 ma i ol 75 ma (note) 4.5 4.5 5.5 0.0 0.1 0.36 0.1 0.44 1.65 v input leakage current i in v in v cc or gnd 5.5 r0.1 r1.0 p a i cc v in v cc or gnd 5.5 8.0 80.0 p a quiescent supply current i c per input: v in 3.4 v other input: v cc or gnd 5.5 1.35 1.5 ma note: this spec indicates the capability of driving 50 : transmission lines. one output should be tested at a ti me for a 10 ms maximum duration. timing requirements (input: t r t f 3 ns) test condition ta 25c ta 40 to 85c characteristics symbol v cc (v) limit limit unit minimum pulse width (ck) t w (l) t w (h) 5.0 r 0.5 5.0 5.0 ns minimum pulse width ( clr ) t w (l) 5.0 r 0.5 5.0 5.0 ns minimum set-up time t s 5.0 r 0.5 3.5 3.5 ns minimum hold time t h 5.0 r 0.5 1.5 1.5 ns minimum removal time ( clr ) t rem 5.0 r 0.5 3.0 3.0 ns
TC74ACT273P/f 2007-10-01 5 ac characteristics (c l = 50 pf, r l = 500 , input: t r = t f = 3 ns) test condition ta = 25c ta = ? 40 to 85c characteristics symbol v cc (v) min typ. max min max unit propagation delay time (ck-q) t plh t phl ? 5.0 0.5 ? 6.6 10.5 1.0 12.0 ns propagation delay time ( clr -q) t phl ? 5.0 0.5 ? 7.4 10.8 1.0 12.3 ns maximum clock frequency f max ? 5.0 0.5 80 150 ? 80 ? 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 /8 (per f/f) and the total c pd when n pcs. of flip flop operate can be gained by the following equation. c pd (total) = 23 + 11 ?n
TC74ACT273P/f 2007-10-01 6 package dimensions weight: 1.30 g (typ.)
TC74ACT273P/f 2007-10-01 7 package dimensions weight: 0.22 g (typ.)
TC74ACT273P/f 2007-10-01 8 restrictions on product use 20070701-en general ? the information contained herein is subject to change without notice. ? toshiba is continually working to improve the quality and reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity a nd 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 specified operating ranges as set forth in the most recent toshib a products specifications. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semiconduct or devices,? or ?toshiba semiconductor reliability handbook? etc. ? the toshiba products listed in this document are in tended for usage in general electronics applications (computer, personal equipment, office equipment, measuri ng equipment, 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 malfuncti on or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage incl ude atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, et c.. unintended usage of toshiba products listed in his document shall be made at the customer?s own risk. ? the products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. ? the information contained herein is presented only as a guide for the applications of our products. no responsibility is assumed by toshiba for any infringement s of patents or other rights of the third parties which may result from its use. no license is granted by implic ation or otherwise under any patents or other rights of toshiba or the third parties. ? please contact your sales representative for product- by-product details in this document regarding rohs compatibility. please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations.
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