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參數(shù)資料
| 型號： | 74F374 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Octal D-Type Flip-Flop with TRI-STATE Outputs(帶時鐘使能端八路D觸發(fā)器) |
| 中文描述： | 八路D類觸發(fā)器觸發(fā)器與三態(tài)輸出（帶時鐘使能端八路?觸發(fā)器） |
| 文件頁數(shù)： | 2/8頁 |
| 文件大小： | 175K |
| 代理商： | 74F374 |
Unit Loading/Fan Out
Pin
54F/74F
Names
Description
U.L.
Input I
IH
/I
IL
Output I
OH
/I
OL
HIGH/LOW
D
0
–D
7
CP
OE
O
0
–O
7
Data Inputs
Clock Pulse Input (Active Rising Edge)
TRI-STATE Output Enable Input (Active LOW)
TRI-STATE Outputs
1.0/1.0
1.0/1.0
1.0/1.0
150/40 (33.3)
20
m
A/
b
0.6 mA
20
m
A/
b
0.6 mA
20
m
A/
b
0.6 mA
b
3 mA/24 mA (20 mA)
Functional Description
The ’F374 consists of eight edge-triggered flip-flops with in-
dividual D-type inputs and TRI-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 re-
quirements 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 affected the state of the flip-flops.
Truth Table
Inputs
Internal
Register
Output
D
n
CP
OE
O
n
H
L
X
L
L
X
L
L
H
H
L
X
H
L
Z
H
e
HIGH Voltage Level
L
e
LOW Voltage Level
X
e
Immaterial
Z
e
High Impedance
L
e
LOW-to-HIGH Clock Transition
Logic Diagram
TL/F/9524–5
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
2
相關PDF資料 |
PDF描述 |
|---|---|
| 74F377 | Octal D Flip-Flop with Clock Enable(帶時鐘使能端八路D觸發(fā)器) |
| 74F377PC | Octal D Flip-Flop with Clock Enable |
| 74F377SC | Octal D Flip-Flop with Clock Enable |
| 74F377SJ | Octal D Flip-Flop with Clock Enable |
| 74F377 | Octal D-Type Flip-Flop with Clock Enable |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 74F374_00 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Octal D-Type Flip-Flop with 3-STATE Outputs |
| 74F374AN | 制造商:North American Philips Discrete Products Div 功能描述:74F374AN |
| 74F374D | 制造商:NXP Semiconductors 功能描述:OCTAL D-F/F 3-STATE |
| 74F374DC | 制造商:FAIR 功能描述:Flip Flop, Octal, D Type, 20 Pin, Ceramic, DIP |
| 74F374LC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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