December 1990

7

Philips Semiconductors

Product specification

Octal bus Schmitt-trigger transceiver;

3-state

74HC/HCT7245

AC WAVEFORMS

PACKAGE OUTLINES

See

Fig.6

(1)

Fig.7 Waveforms showing the 3-state enable and disable times.

handbook, full pagewidth

MBA322

t PLZ

VM

(1)

t PZL

VM

(1)

VM

(1)

outputs

disabled

outputs

enabled

t PZH

90 %

t PHZ

10 %

90 %

t f

t r

outputs

enabled

OUTPUT

LOW - to - OFF

OFF - to - LOW

OUTPUT

HIGH - to - OFF

OFF - to - HIGH

OE

INPUT

n

10 %

(1)