Philips Semiconductors

Product specification

74ABT853

8-bit transceiver with 9-bit parity checker/

generator and flag latch (3-State)

1995 Sep 06

6

AC WAVEFORMS

INPUT

OUTPUT

SA00216

Waveform 1. Propagation Delay For Inverting Output

OEA, OEB

0V

OUTPUT

SA00238

Waveform 2. 3-State Output Enable Time to High Level and

Output Disable Time from High Level

VM

CLEAR

VM

ERROR

tw(L)

tPLH

VM

SA00265

Waveform 3. CLEAR Pulse Width and CLEAR to ERROR Delay

INPUT

VM

VM

OUTPUT

VM

VM

tPLH

tPHL

SA00023

Waveform 4. Propagation Delay For Non-Inverting Output

0V

OEA, OEB

OUTPUT

SA00239

Waveform 5. 3-State Output Enable Time to Low Level and

Output Disable Time from Low Level

NOTE: The shaded areas indicate when the input is permitted to

change for predictable output performance.

VM

CLEAR,

Bn, PARITY

VM

VM

VM

VM

VM

ENABLE

ts(H)

th(H)

ts(L)

th(L)

VM

tw(L)

SA00266

Waveform 6. Data Setup and Hold Times and ENABLE Pulse

Width