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參數(shù)資料
| 型號(hào)： | 9308FMQB |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-Bit D-Type Latch |
| 中文描述： | 4位D型鎖存器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 121K |
| 代理商： | 9308FMQB |
Functional Description
Data can be entered into the latch when both of the enable
inputs are LOW. As long as this logic condition exists, the
output of the latch will follow the input. If either of the enable
inputs goes HIGH, the data present in the latch at that time
is held in the latch and is no longer affected by data input.
The master reset overrides all other input conditions and
forces the outputs of all the latches LOW when a LOW sig-
nal is applied to the Master Reset input.
Truth Table
MR
E0
E1
D
Qn
Operation
H
H
H
L
L
L
L
L
H
L
H
X
L
H
Data Entry
Data Entry
Hold
Qn
b
1
H
H
L
H
H
X
L
H
X
X
X
X
Qn
b
1
Qn
b
1
L
Hold
Hold
Reset
Q
n
b
1
e
Previous Output State
Q
n
e
Present Output State
H
e
HIGH Voltage Level
L
e
LOW Voltage Level
X
e
Immaterial
Logic Diagram
TL/F/10208–3
Switching Characteristics
V
CC
e a
5.0V, T
A
e a
25
§
C (See Section 5 for test waveforms and output load.)
9308
Symbol
Parameter
C
L
e
15 pF
R
L
e
400
X
Units
Min
Max
t
PLH
t
PHL
Propagation Delay
En to Qn
30
22
ns
t
PLH
t
PHL
Propagation Delay
Dn to Qn
15
18
ns
t
PHL
Propagation Delay
MR to Qn
22
ns
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 9308 | Dual 4-Bit Latch(雙通道4位鎖存器) |
| 9308J | Dual 4-Bit Latch |
| 9308N | Dual 4-Bit Latch |
| 9308W | Dual 4-Bit Latch |
| 9308PCQR | 4-Bit D-Type Latch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 9308J | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 4-Bit Latch |
| 9308N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 4-Bit Latch |
| 9308PC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 9308PCQR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit D-Type Latch |
| 9308W | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 4-Bit Latch |
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