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參數(shù)資料
| 型號(hào)： | HD74HC109 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dual J-K Flip-Flops (with Preset and Clear) |
| 中文描述： | 雙JK觸發(fā)器（帶預(yù)置和清除） |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大小： | 59K |
| 代理商： | HD74HC109 |
HD74HC109
Dual J-
K
Flip-Flops (with Preset and Clear)
Description
Each flip-flop has independent J,
K
, preset, clear and clock inputs and Q and
Q
outputs. This device is
edge sensitive to the clock input and changes state on the positive going transition of the clock pulse. Clear
and preset are independent of the clock and accomplished by a low logic level on the corresponding input.
Features
High Speed Operation: t
pd
(Clock to Q) = 15 ns typ (C
L
= 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: V
CC
= 2 to 6 V
Low Input Current: 1 μA max
Low Quiescent Supply Current: I
CC
(static) = 2 μA max (Ta = 25°C)
Function Table
Inputs
Output
Preset
Clear
Clock
J
K
Q
Q
L
H
X
X
X
H
L
H
L
X
X
X
L
H
L
L
X
X
X
H*
1
H*
1
H
H
L
L
L
H
H
H
H
L
Toggle
H
H
L
H
Q
0
Q
0
H
H
H
H
H
L
H
Note:
H
L
X
X
Q
0
Q
0
1. Q and
Q
will remain high as long as preset and clear input are low, but Q and
Q
are
unpredictable if preset and clear input go high simultaneously.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| HD74HC109P-E | 制造商:Renesas Electronics 功能描述:74HC Dual J-K Flip-Flop with Preset and Clear |
| HD74HC10P-E | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC10P-E-Q | 制造商:Renesas Electronics Corporation 功能描述:ANALOG IC |
| HD74HC112FP | 制造商:Renesas Electronics Corporation 功能描述:Flip Flop JK-Type Neg-Edge 2-Element 16-Pin SOP |
| HD74HC112P-E | 制造商:Renesas Electronics 功能描述:74HC Dual J-K Flip-Flop with Preset and Clear |
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