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74ALVT16899

2.5V/3.3V 18-bit latched transceiver with 16-bit parity generator/checker (3-State)

Philips Electronics 

Philips Semiconductors

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

generator/checker (3-State)

Product specification

74ALVT16899

AC WAVEFORMS

VM = 1.5V or VCC/2 whichever is less; VIN = GND to 3.0V

nAx INPUT

VM

tPHL

nYx OUTPUT

VM

VM

tPLH

3.0V or VCC,

whichever is less

0

VOH

VM

VOL

SW00160

Waveform 1. Input (nAx) to Output (nYx) Propagation Delays

1

SEL

nOE

VM

INPUT

tPZL

VM

tPLZ

3.0V or VCC

whichever is

less

0V

nYx

VM

OUTPUT

tPZH

nYx

VM

OUTPUT

tPHZ

VX

VOL

VOH

VY

0V

SW00204

Waveform 2. 3-State Output Enable and Disable Times

An, APAR

(Bn, BPAR)

VM

VM

INPUT

Bn, BPAR

(An, APAR)

tPLH

VM

tPHL

VM

OUTPUT

SA00293

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

SEL

0

ODD/EVEN

0

1

LEA

(LEB)

An

(Bn)

ODD PARITY VM

BPAR

(APAR)

tPHL

EVEN PARITY

VM

VM

ODD PARITY

INPUT

tPLH

VM

OUTPUT

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

1998 Jun 30

11

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