參數(shù)資料
型號: 74HCT221
廠商: NXP Semiconductors N.V.
英文描述: Dual non-retriggerable monostable multivibrator with reset(帶復位的雙路不可再觸發(fā)單穩(wěn)態(tài)多諧振蕩器)
中文描述: 雙非retriggerable單穩(wěn)態(tài)觸發(fā)器的復位(帶復位的雙路不可再觸發(fā)單穩(wěn)態(tài)多諧振蕩器)
文件頁數(shù): 3/15頁
文件大小: 250K
代理商: 74HCT221
December 1990
3
Philips Semiconductors
Product specification
Dual non-retriggerable monostable
multivibrator with reset
74HC/HCT221
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”
.
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
1, 9
2, 10
3, 11
4, 12
7
8
13, 5
14, 6
15
16
1A, 2A
1B, 2B
1R
D
, 2R
D
1Q, 2Q
2R
EXT
/C
EXT
GND
1Q, 2Q
1C
EXT
, 2C
EXT
1R
EXT
/C
EXT
V
CC
trigger inputs (negative-edge triggered)
trigger inputs (positive-edge triggered)
direct reset inputs (active LOW)
outputs (active LOW)
external resistor/capacitor connection
ground (0 V)
outputs (active HIGH)
external capacitor connection
external resistor/capacitor connection
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
相關(guān)PDF資料
PDF描述
74HC221 Dual non-retriggerable monostable multivibrator with reset
74221 Dual non-retriggerable monostable multivibrator with reset
74221 Dual Monostable Multivibrators (with Schmitt Trigger Input)
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74221 Dual Non-Retriggerable Monostable Multivibrator
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