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MC74AC574

Octal D-Type Flip-Flop with 3-State Outputs

Motorola => Freescale 

MC74AC57

MC74ACT574

Octal DĆType FlipĆFlop

with 3ĆState Outputs

The MC74AC574/74ACT574 is a high-speed, low power octal flip-flop with a

buffered common Clock (CP) and a buffered common Output Enable (OE). The

information presented to the D inputs is stored in the flip-flops on the LOW-to-HIGH

Clock (CP) transition.

The MC74AC574/74ACT574 is functionally identical to the MC74AC374/

74ACT374 except for the pinouts.

• Inputs and Outputs on Opposite Sides of Package

Allowing Easy Interface with Microprocessors

• Useful as Input or Output Port for Microprocessors

• Functionally Identical to MC74AC374/74ACT374

• 3-State Outputs for Bus-Oriented Applications

• Outputs Source/Sink 24 mA

• ′ACT574 Has TTL Compatible Inputs

VCC O0 O1 O2 O3 O4 O5 O6 O7 CP

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

OE D0 D1 D2 D3 D4 D5 D6 D7 GND

PIN NAMES

D0–D7

CP

OE

O0–O7

Data Inputs

Clock Pulse Input

3-State Output Enable Input

3-State Outputs

OCTAL D-TYPE

FLIP-FLOP WITH

3-STATE OUTPUTS

N SUFFIX

CASE 738-03

PLASTIC

DW SUFFIX

CASE 751D-04

PLASTIC

LOGIC SYMBOL

D0 D1 D2 D3 D4 D5 D6 D7

CP

OE

O0 O1 O2 O3 O4 O5 O6 O7

FACT DATA

5-1

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