參數(shù)資料
型號: HD74ACT374
廠商: Hitachi,Ltd.
英文描述: Dual 2-Line To 4-Line Decoders/Demultiplexers 20-LCCC -55 to 125
中文描述: 八路D類觸發(fā)器3正反器態(tài)輸出
文件頁數(shù): 3/11頁
文件大小: 63K
代理商: HD74ACT374
HD74AC374/HD74ACT374
3
Functional Description
The HD74AC374/HD74ACT374 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 common 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 contents
of the eight flip-flops are available at the outputs. When the
OE
is High, the outputs go to the high
impedance state. Operation of the
OE
input does not affect the state of the flip-flops.
Truth Table
Inputs
Outputs
D
n
H
CP
OE
O
n
H
L
L
L
L
X
H :
L
X :
Z
X
H
Z
High Voltage Level
Low Voltage Level
Immaterial
High Impedance
: Low-to-High Transition
:
:
Logic Diagram
O
7
D
7
CP
Q
Q
D
O
6
D
6
CP
Q
Q
D
O
5
D
5
CP
Q
Q
D
O
4
D
4
CP
Q
Q
D
O
3
D
3
CP
Q
Q
D
O
2
D
2
CP
Q
Q
D
O
1
D
1
CP
Q
Q
D
O
0
D
0
CP
OE
CP
Q
Q
D
Please note that this diagram is provided only for the understanding of logic operations and should not be
used to estimate propagation delays.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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HD74ACT374FP(E) 制造商:Renesas Electronics Corporation 功能描述:
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HD74ACT377P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Octal D-Type Flip-Flop