74LVT640D View Datasheet(PDF) - Philips Electronics

Part Name

Description

MFG CO.

74LVT640D

3.3V Octal transceiver with direction pin; inverting (3-State)

Philips Electronics 

Philips Semiconductors

3.3V Octal transceiver with direction pin; inverting

(3-State)

Product specification

74LVT640

AC CHARACTERISTICS

GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.

SYMBOL

PARAMETER

WAVEFORM

tPLH

Propagation delay

tPHL

An to Bn or Bn to An

tPZH

tPZL

Output enable time

to High and Low level

tPHZ

Output disable time

tPLZ

from High and Low Level

NOTES:

1. All typical values are at VCC = 3.3V and Tamb = 25°C.

AC WAVEFORMS

VM = 1.5V, VIN = GND to 2.7V

NO TAG

NO TAG

NO TAG

LIMITS

VCC = 3.3V +0.3V

MIN

TYP1

MAX

1.0

2.3

3.7

1.0

2.4

3.3

1.1

3.5

5.3

1.5

3.6

5.3

2.2

3.7

5.0

2.0

3.1

4.5

VCC = 2.7V

MAX

4.5

3.1

6.9

6.2

5.6

4.5

UNIT

ns

ns

ns

An or Bn

INPUT

Bn or An

OUTPUT

VM

tPHL

VM

VM

tPLH

VM

SA00192

Waveform 1. Input (An or Bn) to Output (Bn or An) Propagation

Delays

OE INPUT

1.5V

tPZL

1.5V

tPLZ

2.7V

0V

3.0V

An or Bn

OUTPUT

Bn or An

OUTPUT

1.5V

tPZH

1.5V

tPHZ

VOL + 0.3V

VOL

VOH

VOH – 0.3V

0V

SV00106

Waveform 2. 3-State Output Enable and Disable Times

1998 Feb 19

5

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