Philips Semiconductors

Product specification

74ALVT16899

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

generator/checker (3-State)

1998 Jun 30

11

AC WAVEFORMS

SW00160

nAx INPUT

nYx OUTPUT

tPHL

tPLH

whichever is less

0

Waveform 1.

Input (nAx) to Output (nYx) Propagation Delays

nOE

INPUT

tPZH

tPHZ

nYx

OUTPUT

VOH

nYx

OUTPUT

VOL

tPZL

tPLZ

0V

VX

VY

whichever is

less

0V

SW00204

Waveform 2. 3-State Output Enable and Disable Times

An, APAR

(Bn, BPAR)

VM

tPLH

tPHL

VM

VM

VM

Bn, BPAR

(An, APAR)

SEL

1

INPUT

OUTPUT

SA00293

Waveform 3. Propagation Delay, An to Bn, Bn to An, APAR to BPAR, BPAR to APAR

An

(Bn)

tPLH

VM

VM

VM

BPAR

(APAR)

LEA

(LEB)

1

INPUT

OUTPUT

ODD/EVEN

0

SEL

0

tPHL

VM

ODD PARITY

EVEN PARITY

ODD PARITY

NOTE: Only even parity mode is shown, odd parity mode would be with ODD/EVEN = 1

SA00294

Waveform 4. Propagation Delay, An to BPAR or Bn to APAR