MC74AC374, MC74ACT374
Octal D−Type Flip−Flop with
3−State Outputs
The MC74AC374/74ACT374 is a high−speed, low−power octal
D−type flip−flop featuring separate D−type inputs for each flip−flop
and 3−state outputs for bus−oriented applications. A buffered Clock
(CP) and Output Enable (OE) are common to all flip−flops.
Features
http://onsemi.com
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Buffered Positive Edge−Triggered Clock
3−State Outputs for Bus−Oriented Applications
Outputs Source/Sink 24 mA
See MC74AC273 for Reset Version
See MC74AC377 for Clock Enable Version
See MC74AC373 for Transparent Latch Version
See MC74AC574 for Broadside Pinout Version
See MC74AC564 for Broadside Pinout Version with Inverted
Outputs
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′ACT374
Has TTL Compatible Inputs
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Pb−Free Packages are Available
V
CC
20
O
7
19
D
7
18
D
6
17
O
6
16
O
5
15
D
5
14
D
4
13
O
4
12
CP
11
PDIP−20
N SUFFIX
CASE 738
1
SOIC−20W
DW SUFFIX
CASE 751D
1
TSSOP−20
DT SUFFIX
CASE 948E
1
SOEIAJ−20
M SUFFIX
CASE 967
1
1
OE
2
O
0
3
D
0
4
D
1
5
O
1
6
O
2
7
D
2
8
D
3
9
O
3
10
GND
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 6 of this data sheet.
Figure 1. Pinout: 20 Lead Packages Conductors
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
PIN ASSIGNMENT
PIN
D
0
−D
7
CP
OE
O
0
−O
7
FUNCTION
Data Inputs
Clock Pulse Input
3−State Output Enable Input
3−State Outputs
CP
OE
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
Figure 2. Logic Symbol
©
Semiconductor Components Industries, LLC, 2006
1
November, 2006 − Rev. 8
Publication Order Number:
MC74AC374/D
ONSEMI [ ON SEMICONDUCTOR ]
