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參數(shù)資料
| 型號： | 74F379 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Quad Parallel Register with Enable |
| 中文描述： | 四路并行注冊與啟用 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 166K |
| 代理商： | 74F379 |
Unit Loading/Fan Out
54F/74F
Pin Names
Description
U.L.
Input I
IH
/I
IL
HIGH/LOW Output I
OH
/I
OL
E
D
0
–D
3
CP
Q
0
–Q
3
Q
0
–Q
3
Enable Input (Active LOW)
Data Inputs
Clock Pulse Input (Active Rising Edge)
Flip-Flop Outputs
Complement Outputs
1.0/1.0
1.0/1.0
1.0/1.0
50/33.3
50/33.3
20
m
A/
b
0.6 mA
20
m
A/
b
0.6 mA
20
m
A/
b
0.6 mA
b
1 mA/20 mA
b
1 mA/20 mA
Functional Description
The ’F379 consists of four edge-triggered D-Type flip-flops
with individual D inputs and Q and Q outputs. The Clock
(CP) and Enable (E) inputs are common to all flip-flops.
When the E is input HIGH, the register will retain the present
data independent of the CP input. The D
n
and E inputs can
change when the clock is in either state, provided that the
recommended setup and hold times are observed.
Truth Table
Inputs
Outputs
E
CP
D
n
Q
n
Q
n
H
L
L
L
L
L
X
H
L
NC
H
L
NC
L
H
H
e
HIGH Voltage Level
L
e
LOW Voltage Level
X
e
Immaterial
L
e
LOW-to-HIGH Transition
NC
e
No Change
Logic Diagram
TL/F/9527–4
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(guān)PDF資料 |
PDF描述 |
|---|---|
| 74F379SC | Quad Parallel Register with Enable |
| 74F379SJ | Quad Parallel Register with Enable |
| 74F379PC | Quad Parallel Register with Enable |
| 74F379 | Quad Parallel Register with Enable |
| 74F379SC | Quad Parallel Register with Enable |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F379_00 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Quad Parallel Register with Enable |
| 74F379_UGH3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74F379A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quad register |
| 74F379PC | 功能描述:觸發(fā)器 Quad Parallel Reg RoHS:否 制造商:Texas Instruments 電路數(shù)量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| 74F379PC_Q | 功能描述:觸發(fā)器 Quad Parallel Reg RoHS:否 制造商:Texas Instruments 電路數(shù)量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
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