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參數(shù)資料
| 型號(hào)： | HD74HC221FPEL |
| 元件分類： | 諧振器 |
| 英文描述： | HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16 |
| 封裝： | 5.50 X 10.06 MM, 1.27 MM PITCH, PLASTIC, SOP-16 |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 114K |
| 代理商： | HD74HC221FPEL |
Rev.2.00 Jan 31, 2006 page 1 of 7
HD74HC221
Dual Monostable Multivibrators (with Schmitt Trigger Input)
REJ03D0591–0200
(Previous ADE-205-468)
Rev.2.00
Jan 31, 2006
Description
Each multivibrator features both a negative, A, and a positive, B, transition triggered input, either of which can be used
as an inhibit. Also included is a clear input that when taken low resets the one shot. The HD74HC221 can be triggered
on the positive transition of the clear while A is held low and B is held high.
This device is a non-retriggerable, and therefore cannot be retriggered until the output pulse times out.
The output pulse equation is simply:
t
W
= 0.7·(Rext)·(Cext)
Features
High Speed Operation
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
Ordering Information
Part Name
Package Type
Package Code
(Previous Code)
PRDP0016AE-B
(DP-16FV)
PRSP0016DH-B
(FP-16DAV)
Package
Abbreviation
Taping Abbreviation
(Quantity)
HD74HC221P
DILP-16 pin
P
—
HD74HC221FPEL
SOP-16 pin (JEITA)
FP
EL (2,000 pcs/reel)
Note: Please consult the sales office for the above package availability.
Function Table
Inputs
A
X
H
X
L
Outputs
Clear
L
X
X
H
H
B
X
X
L
Q
L
L
L
Q
H
H
H
H
H
L
H : high level (steady state)
L : low level (steady state)
X : don’t care
transition from low to high level.
transition from high to low level.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD74HC221P | 制造商:Renesas Electronics Corporation 功能描述:Monostable Multivibrator Dual 16-Pin PDIP |
| HD74HC221P(E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC238FP | 制造商:Renesas Electronics Corporation 功能描述:Decoder/Demultiplexer Single 3-to-8 16-Pin SOP |
| HD74HC238FP(EL-E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC238P-E | 制造商:Renesas Electronics Corporation 功能描述: |
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