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MC74AC57 Datasheet, PDF (1/8 Pages) Motorola, Inc – OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS | |||
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MC74AC57
MC74ACT574
Octal DÄType FlipÄFlop
with 3ÄState 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
⢠â²ACT574 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
D0âD7
CP
OE
O0âO7
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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