74ABT2245D View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

74ABT2245D

Octal transceiver with direction pin and 30 Ω series termination resistors (3-State)

NXP Semiconductors. 

Philips Semiconductors

Octal transceiver with direction pin and

30 Ω series termination resistors (3-State)

Product data

74ABT2245

AC CHARACTERISTICS

GND = 0 V; tR = tF = 2.5 ns; CL = 50 pF, RL = 500 Ω

SYMBOL

PARAMETER

WAVEFORM

tPLH

Propagation delay

tPHL

An to Bn or Bn to An

1

tPZH

Output enable time

tPZL

to HIGH and LOW level

2

tPHZ

Output disable time

tPLZ

from HIGH and LOW Level

2

AC WAVEFORMS

VM = 1.5 V, VIN = GND to 3.0 V

An or Bn

INPUT

Bn or An

OUTPUT

VM

tPLH

VM

VM

tPHL

VM

SA00124

Waveform 1. Waveforms Showing the Input to Output

Propagation Delays

LIMITS

Tamb = +25 °C

VCC = +5.0 V

Min

Typ

Max

Tamb = –40 °C to +85 °C

VCC = +5.0 V ±0.5 V

Min

Max

1.0

2.8

4.2

1.0

4.7

1.0

3.9

5.0

1.0

5.4

1.3

3.5

4.6

1.3

5.5

3.0

5.5

7.0

3.0

7.8

1.5

4.0

5.4

1.5

6.3

1.0

3.4

4.6

1.0

5.0

UNIT

ns

ns

ns

OE

INPUT

VM

tPZL

VM

tPLZ

3.5V

OUTPUT

OUTPUT

VM

tPZH

VM

tPHZ

VOL + 0.3V

VOL

VOH

VOH – 0.3V

0V

SA00314

Waveform 2. Waveforms Showing the 3-State Output Enable

and Disable Times

2002 Dec 17

6

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