74ABT16899 查看數據表（PDF） - Philips Electronics

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74ABT16899

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

Philips Electronics 

Philips Semiconductors

18-bit latched transceiver with 16-bit

parity generator/checker (3-State)

Product specification

74ABT16899

74ABTH16899

AC WAVEFORMS

VM = 1.5V, VIN = GND to 3.0V

1

SEL

An, APAR

(Bn, BPAR)

VM

VM

INPUT

Bn, BPAR

(An, APAR)

tPLH

VM

tPHL

VM

OUTPUT

SA00293

Waveform 1. 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 2. Propagation Delay, An to BPAR or Bn to APAR

ODD/EVEN

0

APAR

(BPAR)

0

1

LEA

(LEB)

SEL

An

(Bn)

ODD PARITY VM

EVEN PARITY

VM

ODD PARITY

INPUT

ERRA

(ERRB)

tPLH

VM

tPHL

VM

OUTPUT

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

SA00295

Waveform 3. Propagation Delay, An to ERRA or Bn to ERRB

1998 Feb 25

9

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