MC74ACT533N 查看數據表（PDF） - Motorola => Freescale

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MC74ACT533N

Octal Transparent Latch with 3-State Outputs

Motorola => Freescale 

MC74AC533

MC74ACT533

Octal Transparent Latch

with 3ĆState Outputs

The MC74AC533/74ACT533 consists of eight latches with 3-state outputs for

bus organized system applications. The flip-flops appear transparent to the data

when Latch Enable (LE) is HIGH. When LE is LOW, the data that meets the setup

time is latched. Data appears on the bus when the Output Enable (OE) is LOW.

When OE is HIGH, the bus output is in the high impedance state. The ′AC/ACT533

is the same as the ′AC/ACT373, except that the outputs are inverted. For description

and logic diagram please see the ′AC/ACT373 data sheet.

• Eight Latches in a Single Package

• 3-State Outputs for Bus Interfacing

• ′ACT533 Has TTL Compatible Inputs

• Inverted Output Version of ′ACT373

VCC O7 D7 D6 O6 O5 D5 D4 O4 LE

20 19 18 17 16 15 14 13 12 11

OCTAL TRANSPARENT

LATCH WITH

3-STATE OUTPUTS

N SUFFIX

CASE 738-03

PLASTIC

1 2 3 4 5 6 7 8 9 10

OE O0 D0 D1 O1 O2 D2 D3 O3 GND

PIN NAMES

D0–D7

LE

OE

O0–O7

Data Inputs

Latch Enable Input

Output Enable Input

Complementary 3-State Outputs

DW SUFFIX

CASE 751D-04

PLASTIC

LOGIC SYMBOL

3 4 7 8 13 14 17 18

D0 D1 D2 D3 D4 D5 D6 D7

11

LE

1

OE

O0 O1 O2 O3 O4 O5 O6 O7

2 5 6 9 12 15 16 19

VCC = Pin 20

GND = Pin 10

FACT DATA

5-1

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