參數(shù)資料
型號(hào): 74HC221
廠商: NXP Semiconductors N.V.
英文描述: Dual non-retriggerable monostable multivibrator with reset
中文描述: 雙非retriggerable帶復(fù)位單穩(wěn)態(tài)觸發(fā)器
文件頁數(shù): 8/15頁
文件大小: 250K
代理商: 74HC221
December 1990
8
Philips Semiconductors
Product specification
Dual non-retriggerable monostable
multivibrator with reset
74HC/HCT221
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard (except for nR
EXT
/C
EXT
)
I
CC
category: MSI
Note to HCT types
The value of additional quiescent supply current (
I
CC
) for a unit load of 1 is given in the family specifications.
To determine
I
CC
per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
UNIT LOAD COEFFICIENT
nB
nA
nR
D
0.30
0.50
0.50
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