HD74LVC533

Octal D-type Transparent Latches with 3-state Outputs

ADE-205-070B(Z)

Rev.2

September 1995

Description

The HD74LVC533 has eight D type latches with three state outputs in a 20 pin package. When the latch

enable input is high, the Q outputs will follow the D inputs. When the latch enable goes low, data at the D

inputs will be retained at the outputs until latch enable returns high again. When a high logic level is

applied to the output control input, all outputs go to a high impedance state, regardless of what signals are

present at the other inputs and the state of the storage elements. Low voltage and high speed operation is

suitable at the battery drive product (note type personal computer) and low power consumption extends the

life of a battery for long time operation.

Features

• V

• All inputs V

• Typical V

• Typical V

• High output current ±24 mA (@V

Function Table

Inputs

G

LE

D

Output

Q

H

XXZ

LH

LH

L

HHL

LLX

Q

0

H :

High level

L :

Low level

X :

Immaterial

Z :

High impedance

Q

Level of

Q before the indicated steady input conditions were established.