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參數(shù)資料
| 型號(hào)： | HD74HC74 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dual D-type Flip-Flops (with Preset and Clear) |
| 中文描述： | 雙D型觸發(fā)器（帶預(yù)置和清除） |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 58K |
| 代理商： | HD74HC74 |
HD74HC74
Dual D-type Flip-Flops (with Preset and Clear)
Description
The flip-flop has independent data, preset, clear, and clock inputs and Q and
Q
outputs. The logic level
present at thte data input is transferred to the output during the positive going transition to the clock pulse.
Preset and clear are independent of the clock and accomplished by a low level at the appropriate input.
Features
High Speed Operation: t
pd
(Clock to Q or
Q
) = 14 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
Outputs
Preset
Clear
Clock
Data
Q
Q
L
H
X
X
H
L
H
L
X
X
L
H
L
L
X
X
H*
1
H*
1
H
H
H
H
L
H
H
L
L
H
H
H
L
X
no change
no change
H
H
H
X
no change
no change
H
H
X
no change
no change
Note:
1. Q and
Q
will remain HIGH as long as Preset and Clear are Low, but Q and
Q
are unpredictable,
if Preset and Clear go HIGH simultaneously.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD74HC74FP-E | 制造商:Renesas Electronics Corporation 功能描述:Flip Flop D-Type Pos-Edge 2-Element 14-Pin SOP 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-14 |
| HD74HC74FPEL-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-14 |
| HD74HC74P | 制造商:Panasonic Industrial Company 功能描述:IC 制造商:Toshiba America Electronic Components 功能描述:HC/UH SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDIP14 |
| HD74HC74P-E | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC74-T(ELL-E) | 制造商:Renesas Electronics Corporation 功能描述: |
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