HD74LVC534 octal d-type flip flops with 3-state outputs ade-205-071b(z) rev.2 september 1995 description the HD74LVC534 has eight edge trigger d type flip flops with three state outputs in a 20 pin package. data at the d inputs meeting set up reguirements, are transferred to the q outputs on positive going transitions of the clock input. when the latch enable goes low, data at the d inputs will be retained at the outputs until latch enable returns high again. when a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. low voltage and high speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation. features v cc = 2.0 v to 5.5 v all inputs v ih (max.) = 5.5 v (@v cc = 0 v to 5.5 v) typical v ol ground bounce < 0.8 v (@v cc = 3.3 v, ta = 25 c) typical v oh undershoot > 2.0 v (@v cc = 3.3 v, ta = 25 c) high output current 24 ma (@v cc = 3.0 v to 5.5 v)
HD74LVC534 2 function table inputs * * ck d output 4 4 hxxz l - lh l - hl llxq 0 h : high level l : low level x : immaterial z : high impedance - : low to high transition q 0 : level of 4 before the indicated steady input conditions were established. pin arrangement (top view) 11 12 13 14 15 16 17 18 19 20 v cc 1 2 3 4 5 6 7 8 9 10 g 1q gnd ck d g q g q ck d ck d g q g q ck d 1d 2d 2q 3q 3d 4d 4q 8q 8d 7d 7q 6q 6d 5d 5q ck ck d g q g q ck d ck d g q g q ck d
HD74LVC534 3 absolute maximum ratings item symbol ratings unit conditions supply voltage v cc C0.5 to 6.0 v input diode current i ik C50 ma v i = C0.5 v input voltage v i C0.5 to 6.0 v output diode current i ok C50 ma v o = C0.5 v 50 ma v o = v cc +0.5 v output voltage v o C0.5 to v cc +0.5 v output current i o 50 ma v cc , gnd current / pin i cc or i gnd 100 ma storage temperature tstg C65 to +150 c note: the absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. recommended operating conditions item symbol ratings unit conditions supply voltage v cc 1.5 to 5.5 v data retention 2.0 to 5.5 v at operation input / output voltage v i 0 to 5.5 v * , ck, d v o 0 to v cc v 4 operating temperature ta C40 to 85 c output current i oh C12 ma v cc = 2.7 v C24 *2 ma v cc = 3.0 v to 5.5 v i ol 12 ma v cc = 2.7 v 24 *2 ma v cc = 3.0 v to 5.5 v input rise / fall time *1 t r , t f 10 ns/v notes: 1. this item guarantees maximum limit when one input switches. waveform : refer to test circuit of switching characteristics. 2. duty cycle 50%
HD74LVC534 4 electrical characteristics ta = C40 to 85 c item symbol v cc (v) min max unit test conditions input voltage v ih 2.7 to 3.6 2.0 v 4.5 to 5.5 v cc 0.7 v v il 2.7 to 3.6 0.8 v 4.5 to 5.5 v cc 0.3 v output voltage v oh 2.7 to 5.5 v cc C0.2 v i oh = C100 m a 2.7 2.2 v i oh = C12 ma 3.0 2.4 v 3.0 2.0 v i oh = C24 ma 4.5 3.8 v v ol 2.7 to 5.5 0.2 v i ol = 100 m a 2.7 0.4 v i ol = 12 ma 3.0 0.55 v i ol = 24 ma 4.5 0.55 v input current i in 0 to 5.5 5.0 m av in = 5.5 v or gnd off state output current i oz 5.5 10 m av in = v cc , gnd v out = v cc or gnd quiescent supply current i cc 5.5 20 m av in = v cc or gnd d i cc 3.0 to 3.6 500 m av in = one input at(v cc C0.6)v, other inputs at v cc or gnd
HD74LVC534 5 switching characteristics ta = C40 to 85 c item symbol v cc (v) min typ max unit from (input) to (output) maximum clock frequency f max 2.7 80.0 mhz 3.3 0.3 100.0 150.0 mhz 5.0 0.5 125.0 mhz propagation delay time t plh 2.7 7.0 9.5 ns ck 4 t phl 3.3 0.3 1.5 5.5 8.5 ns 5.0 0.5 4.0 7.0 ns output enable time t zh 2.7 7.0 9.5 ns *4 t zl 3.3 0.3 1.5 5.5 8.5 ns 5.0 0.5 4.0 7.0 ns output disable time t hz 2.7 5.0 8.5 ns *4 t lz 3.3 0.3 1.5 4.5 7.5 ns 5.0 0.5 3.5 6.5 ns setup time t su 2.7 2.0 ns 3.3 0.3 2.0 ns 5.0 0.5 2.0 ns hold time t h 2.7 1.5 ns 3.3 0.3 1.5 ns 5.0 0.5 1.5 ns pulse width t w 2.7 4.0 ns 3.3 0.3 4.0 ns 5.0 0.5 3.0 ns input capacitance c in 2.7 3.0 pf output capacitance c o 2.7 15.0 pf
HD74LVC534 6 test circuit v cc v cc see function table g ck input pulse generator z = 50 out w output 500 c =
50 pf l 450 open gnd s1 50 scope w w w pulse generator z = 50 out w 1d to 8d 1q to 8q input symbol s1 t / t plh phl open gnd 6 v t / t zh hz t / t zl lz t / t / t su h w open gnd 2 vcc vcc=2.7v,
3.3 0.3v vcc=5.0 0.5v *1 see under table note: 1. c l includes probe and jig capacitance. waveforms C 1 input ck gnd t phl 10 % 90 % t r t f 10 % 10 % t r 90 % 10 % t f gnd t plh v oh v ol input d output q 90 % 90 % v ih v ih v ref v ref v ref v ref
HD74LVC534 7 waveforms C 2 t w t su t h gnd gnd input ck input d t r 90 % 90 % 10 % t f 10 % t w v ih v ih v ref v ref v ref v ref v ref waveforms C 3 v ?0.3 v oh v + 0.3 v ol t zl t lz t zh t hz t f t r 90 % 10 % 90 % 10 % v oh v ol gnd input g waveform - a waveform - b v ih ? v ol1 ? v oh1 v ref v ref v ref v ref test v ih v ref v oh1 v ol1 1.5 v 3 v gnd 50%vcc 2.7 v vcc vcc gnd vcc=2.7v,
3.3 0.3v vcc=5.0 0.5v notes: 1. t r = 2.5 ns, t f = 2.5 ns 2. input waveform : prr = 10 mhz, duty cycle 50% 3. waveform C a shows input conditions such that the output is "l" level when enable by the output control. 4. waveform C b shows input conditions such that the output is "h" level when enable by the output control.
HD74LVC534 8 notice when using this document, keep the following in mind: 1. this document may, wholly or partially, be subject to change without notice. 2. all rights are reserved: no one is permitted to reproduce or duplicate, in any form, the whole or part of this document without hitachis permission. 3. hitachi will not be held responsible for any damage to the user that may result from accidents or any other reasons during operation of the users unit according to this document. 4. circuitry and other examples described herein are meant merely to indicate the characteristics and performance of hitachis semiconductor products. hitachi assumes no responsibility for any intellectual property claims or other problems that may result from applications based on the examples described herein. 5. no license is granted by implication or otherwise under any patents or other rights of any third party or hitachi, ltd. 6. medical applications: hitachis products are not authorized for use in medical applications without the written consent of the appropriate officer of hitachis sales company. such use includes, but is not limited to, use in life support systems. buyers of hitachis products are requested to notify the relevant hitachi sales offices when planning to use the products in medical applications.
|
