74ABT374CSC_Q Fairchild Semiconductor, 74ABT374CSC_Q Datasheet - Page 2

• Manufacturer Part Number: 74ABT374CSC_Q
• Description: Flip Flops Oct D-Type Flip-Flop
• Manufacturer: Fairchild Semiconductor

Specifications of 74ABT374CSC_Q

• Number Of Circuits: 8
• Logic Family: 74ABT
• Logic Type: D-Type Flip-Flop
• Polarity: Non-Inverting
• Input Type: Single-Ended
• Output Type: Single-Ended
• Propagation Delay Time: 5 ns
• High Level Output Current: - 32 mA
• Low Level Output Current: 64 mA
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-20
• Minimum Operating Temperature: - 40 C
• Number Of Input Lines: 8
• Number Of Output Lines: 3
• Supply Voltage - Min: 4.5 V

©1992 Fairchild Semiconductor Corporation
74ABT374 Rev. 1.5.0
Connection Diagram
Functional Description
The ABT374 consists of eight edge-triggered flip-flops
with individual D-type inputs and 3-STATE true outputs.
The buffered clock and buffered Output Enable are com-
mon to all flip-flops. The eight flip-flops will store the
state of their individual D inputs that meet the setup and
hold time requirements on the LOW-to-HIGH Clock (CP)
transition. With the Output Enable (OE) LOW, the con-
tents of the eight flip-flops are available at the outputs.
When OE is HIGH, the outputs are in a high impedance
state. Operation of the OE input does not affect the state
of the flip-flops.
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to
estimate propagation delays.
2
Pin Descriptions
Function Table
H
L
X
Z
NC
D
CP
OE
O
Pin Names
OE CP D
0
0
H
H
H
H
L
L
L
L
–D
–O
LOW Voltage Level
High Impedance
Immaterial
HIGH Voltage Level
Inputs
LOW-to-HIGH Transition
No Change
7
7
H
H
H
H
H
H
H
H
L
L
L
L
Data Inputs
Clock Pulse Input (Active Rising Edge)
3-STATE Output Enable Input
(Active LOW)
3-STATE Outputs
Internal Outputs
NC
NC
NC
NC
Q
H
H
L
L
Description
NC
NC
O
Z
Z
Z
Z
H
L
Hold
Hold
Load
Load
Data Available
Data Available
No Change in
Data
No Change in
Data
Function
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