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74HCT245DB

Octal bus transceiver; 3-state

Philips Electronics 

Philips Semiconductors

Octal bus transceiver; 3-state

Product specification

74HC/HCT245

DC CHARACTERISTICS FOR 74HC

For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: bus driver

ICC category: MSI

AC CHARACTERISTICS FOR 74HC

GND = 0 V; tr = tf = 6 ns; CL = 50 pF

Tamb (°C)

TEST CONDITIONS

SYMBOL

PARAMETER

74HC

+25

−40 to +85

−40 to +125

UNIT

VCC

(V)

WAVEFORMS

min. typ. max. min. max. min. max.

tPHL/ tPLH

propagation delay

An to Bn;

Bn to An

25 90

9 18

7 15

115

135 ns 2.0 Fig.5

23

27

4.5

20

23

6.0

tPZH/ tPZL 3-state output enable time

30 150

190

225

2.0

OE to An;

11 30

38

45 ns 4.5 Fig.6

OE to Bn

9 26

33

38

6.0

signalname DIR

tPHZ/ tPLZ 3-state output disable time

41 150

190

225 ns 2.0

OE to An;

15 30

38

45

4.5 Fig.6

OE to Bn

12 26

33

38

6.0

signalname DIR

tTHL/ tTLH output transition time

14 60

75

90 ns 2.0 Fig.5

5 12

15

18

4.5

4 10

13

15

6.0

September 1993

5

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