74ABT899 查看數據表（PDF） - Philips Electronics

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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

OEA,

OEB

VM

VM

tPZH

tPHZ

An, APAR,

Bn, BPAR

VOH –0.3V

VM

0V

SA00303

Waveform 11. 3-State Output Enable Time to High Level and Output Disable Time from High Level

OEA,

OEB

VM

VM

tPZL

tPLZ

An, APAR,

Bn, BPAR

VM

VOL +0.3V

SA00304

Waveform 12. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level

TEST CIRCUIT AND WAVEFORM

From Output

Under Test

CL = 50 pF

500 Ω

500 Ω

7V

S1

Open

GND

Load Circuit

TEST

S1

tpd

tPLZ/tPZL

tPHZ/tPZH

open

7V

open

DEFINITIONS

CL = Load capacitance includes jig and probe capacitance;

see AC CHARACTERISTICS for value.

SA00012

1998 Jan 16

12

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