2002 Feb 26

3

Philips Semiconductors

Product specification

Octal D-type transparent latch; 3-state

74ALVC373

ORDERING INFORMATION

FUNCTION TABLE

See note 1.

Note

1. H = HIGH voltage level;

h = HIGH voltage level one set-up time prior to the HIGH-to-LOW LE transition;

L = LOW voltage level;

l = LOW voltage level one set-up time prior to the HIGH-to-LOW LE transition;

X = don’t care;

Z = high-impedance OFF-state.

PINNING

TYPE NUMBER

PACKAGES

PINS

PACKAGE

MATERIAL

CODE

74ALVC373D

20

SO

plastic

SOT163-1

74ALVC373PW

20

TSSOP

plastic

SOT360-1

OPERATING MODES

INPUT

INTERNAL

LATCHES

OUTPUTS

OE

LE

Enable and read register

(transparent mode)

L

H

LLL

L

HHHH

Latch and read register

L

L

l

L

L

LLh

H

H

Latch register and disable

outputs

H

XXX

Z

HL

hH

Z

PIN

SYMBOL

DESCRIPTION

1

OE

output enable input (active LOW)

2, 5, 6, 9, 12, 15, 16, 19

3-state latch output

3, 4, 7, 8, 13, 14, 17, 18

data input

10

GND

ground (0 V)

11

LE

latch enable input (active HIGH)

20

supply voltage