Philips Semiconductors

Product specification

74ALVT16899

2.5V/3.3V 18-bit latched transceiver with 16-bit parity

generator/checker (3-State)

1998 Jun 30

15

VM

APAR, An]

(BPAR, Bn)

INPUT

SEL

1

LEA

(LEB)

tPHL

VM

Bn, BPAR

(An, APAR)

INPUT

OUTPUT

tPLH

VM

VM

SA00301

Waveform 11. Propagation Delay, LEA to BPAR or LEB to APAR, LEA to Bn or LEB to An

VM

APAR, BPAR,

An, Bn

VM

VM

VM

VM

VM

LEA, LEB

ts(H)

th(H)

ts(L)

th(L)

tw(H)

VM

SA00302

The shaded areas indicate when the input is permitted to change for predictable output performance.

Waveform 12. Data Setup and Hold Times, Pulse Width High

OEA,

OEB

VM

tPZH

tPHZ

0V

VOH –0.3V

VM

VM

An, APAR,

Bn, BPAR

SA00303

Waveform 13. 3-State Output Enable Time to High Level and Output Disable Time from High Level

OEA,

OEB

tPZL

tPLZ

VOL +0.3V

An, APAR,

Bn, BPAR

VM

VM

VM

SA00304

Waveform 14. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level