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74ABT899

9-bit dual latch transceiver with 8-bit parity generator/checker (3-State)

Philips Electronics 

Philips Semiconductors

9-bit dual latch transceiver with 8-bit parity

generator/checker (3-State)

Product specification

74ABT899

ODD/EVEN

0

An

(Bn)

EVEN PARITY

INPUT

APAR

(BPAR)

ERRA

(ERRB)

VM

VM

tPLH

tPHL

VM

VM

INPUT

OUTPUT

NOTE: Only even parity mode is shown with even parity. Odd parity mode would cause inverted output

and odd parity mode would be with ODD/EVEN = 1

SA00298

Waveform 6. Propagation Delay, APAR to ERRA or BPAR to ERRB

1

ODD/EVEN

APAR

(BPAR)

0

An

(Bn) EVEN PARITY

ODD PARITY

EVEN PARITY

INPUT

LEA

(LEB)

ERRA

(ERRB)

VM

tPLH

VM

VM

tPHL

VM

INPUT

OUTPUT

NOTE: Only odd parity mode is shown. Even parity mode would be with ODD/EVEN = o

Waveform 7. Propagation Delay, LEA to ERRA or LEB to ERRB

SA00299

1998 Jan 16

10

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