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1/11 august 2001 n high speed: f max = 50mhz (typ.) at v cc = 4.5v n low power dissipation: i cc = 4 m a(max.) at t a =25c n compatible with ttl outputs : v ih = 2v (min.) v il = 0.8v (max) n symmetrical output impedance: |i oh | = i ol = 6ma (min) n balanced propagation delays: t plh @ t phl n pin and function compatible with 74 series 534 description the m74hct534 is an high speed cmos octal d-type flip flop with 3-state outputs inverting fabricated with silicon gate c 2 mos technology. this 8 bit d-type flip flop is controlled by a clock input (ck) and an output enable input (oe ). on the positive transition of the clock, the q outputs will be set to the logic state that were setup at the d inputs complements. while the oe input is at low level, the eight outputs will be in a normal logic state (high or low logic level) and while high level the outputs will be in a high impedance state. the output control does not affect the internal operation of flip-flops; that is, the old data can be retained or the new data can be entered even while the outputs are off. all inputs are equipped with protection circuits against static discharge and transient excess voltage. m74hct534 octal d-type flip flop with 3 state output inverting pin connection and iec logic symbols order codes package tube t & r dip M74HCT534B1R sop m74hct534m1r m74hct534rm13tr tssop m74hct534ttr tssop dip sop
m74hct534 2/11 input and output equivalent circuit pin description truth table x: dont care z: high impedance logic diagram this logic diagram has not be used to estimate propagation delays pin no symbol name and function 1oe 3 state output enable input (active low) 2, 5, 6, 9, 12, 15, 16, 19 q0 to q7 3 state outputs 3, 4, 7, 8, 13, 14, 17, 18 d0 to d7 data inputs 11 ck clock input (low to high, edge triggered) 10 gnd ground (0v) 20 v cc positive supply voltage inputs output oe ck d q hxxz l x no change llh lhl
m74hct534 3/11 absolute maximum ratings absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditi ons is not implied (*) 500mw at 65 c; derate to 300mw by 10mw/ c from 65 c to 85 c recommended operating conditions symbol parameter value unit v cc supply voltage -0.5 to +7 v v i dc input voltage -0.5 to v cc + 0.5 v v o dc output voltage -0.5 to v cc + 0.5 v i ik dc input diode current 20 ma i ok dc output diode current 20 ma i o dc output current 35 ma i cc or i gnd dc v cc or ground current 70 ma p d power dissipation 500(*) mw t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 300 c symbol parameter value unit v cc supply voltage 4.5 to 5.5 v v i input voltage 0 to v cc v v o output voltage 0 to v cc v t op operating temperature -55 to 125 c t r , t f input rise and fall time (v cc = 4.5 to 5.5v) 0 to 500 ns
m74hct534 4/11 dc specifications ac electrical characteristics (c l = 50 pf, input t r = t f = 6ns) symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. v ih high level input voltage 4.5 to 5.5 2.0 2.0 2.0 v v il low level input voltage 4.5 to 5.5 0.8 0.8 0.8 v v oh high level output voltage 4.5 i o =-20 m a 4.4 4.5 4.4 4.4 v i o =-6.0 ma 4.18 4.31 4.13 4.10 v ol low level output voltage 4.5 i o =20 m a 0.0 0.1 0.1 0.1 v i o =6.0 ma 0.17 0.26 0.33 0.40 i i input leakage current 5.5 v i = v cc or gnd 0.1 1 1 m a i oz high impedance output leakage current 5.5 v i = v ih or v il v o = v cc or gnd 0.5 5 10 m a i cc quiescent supply current 5.5 v i = v cc or gnd 44080 m a d i cc additional worst case supply current 5.5 per input pin v i = 0.5v or v i = 2.4v other inputs at v cc or gnd i o = 0 2.0 2.9 3.0 ma symbol parameter test condition value unit v cc (v) c l (pf) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. t tlh t thl output transition time 4.5 50 7 12 15 18 ns t plh t phl propagation delay time (ck - q ) 4.5 50 20 30 38 45 ns 4.5 150 25 38 48 57 t pzl t pzh output enable time 4.5 50 r l = 1 k w 17 30 38 45 ns 4.5 150 25 38 48 57 t plz t phz output disable time 4.5 50 r l = 1 k w 16 28 35 42 ns f max maximum clock frequency 4.5 50 31 50 25 21 mhz t w(l) t w(h) minimum pulse width (ck) 4.5 50 15 19 23 ns t s minimum set-up time 4.5 50 15 19 23 ns t h minimum hold time 4.5 50 0 0 0 ns
m74hct534 5/11 capacitive characteristics 1) c pd is defined as the value of the ics internal equivalent capacitance which is calculated from the operating current consumption without load. (refer to test circuit). average operating current can be obtained by the following equation. i cc(opr) = c pd x v cc x f in + i cc /8 (per flip flop) and the c pd when n pcs of flip flop operate, can be gained by the following equation: c pd(total) = 30 + 18 x n (pf) test circuit c l = 50pf/150pf or equivalent (includes jig and probe capacitance) r 1 = 1k w or equivalent r t = z out of pulse generator (typically 50 w ) symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. c in input capacitance 5101010pf c out output capacitance 10 pf c pd power dissipation capacitance (note 1) 48 pf test switch t plh , t phl open t pzl , t plz v cc t pzh , t phz gnd
m74hct534 6/11 waveform 1: ck to qn propagation delays, ck maximum frequency, dn to ck setup and hold times (f=1mhz; 50% duty cycle)
m74hct534 7/11 waveform 2: output enable and disable times (f=1mhz; 50% duty cycle) waveform 3: ck minimum pulse width (f=1mhz; 50% duty cycle)
m74hct534 8/11 dim. mm. inch min. typ max. min. typ. max. a1 0.254 0.010 b 1.39 1.65 0.055 0.065 b 0.45 0.018 b1 0.25 0.010 d 25.4 1.000 e 8.5 0.335 e 2.54 0.100 e3 22.86 0.900 f 7.1 0.280 i 3.93 0.155 l 3.3 0.130 z 1.34 0.053 plastic dip-20 (0.25) mechanical data p001j
m74hct534 9/11 dim. mm. inch min. typ max. min. typ. max. a 2.65 0.104 a1 0.1 0.2 0.004 0.008 a2 2.45 0.096 b 0.35 0.49 0.014 0.019 b1 0.23 0.32 0.009 0.012 c 0.5 0.020 c1 45 (typ.) d 12.60 13.00 0.496 0.512 e 10.00 10.65 0.393 0.419 e 1.27 0.050 e3 11.43 0.450 f 7.40 7.60 0.291 0.300 l 0.50 1.27 0.020 0.050 m 0.75 0.029 s8 (max.) so-20 mechanical data po13l
m74hct534 10/11 dim. mm. inch min. typ max. min. typ. max. a 1.2 0.047 a1 0.05 0.15 0.002 0.004 0.006 a2 0.8 1 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 d 6.4 6.5 6.6 0.252 0.256 0.260 e 6.2 6.4 6.6 0.244 0.252 0.260 e1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 bsc 0.0256 bsc k0 80 8 l 0.45 0.60 0.75 0.018 0.024 0.030 tssop20 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 0087225c
m74hct534 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specificati ons mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2000 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia - malta - morocco singapore - spain - sweden - switzerland - united kingdom ? http://www.st.com 11/11

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