74hct221 NXP Semiconductors, 74hct221 Datasheet - Page 7

• Manufacturer Part Number: 74hct221
• Description: Dual Non-retriggerable Monostable Multivibrator With Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
December 1990
SYMBOL
t
t
t
t
t
R
C
W
W
W
W
rem
Dual non-retriggerable monostable
multivibrator with reset
EXT
EXT
PARAMETER
output pulse width
output pulse width
output pulse width
pulse width match
removal time
external timing resistor
external timing capacitor
nQ or nQ
nQ or nQ
nQ or nQ
between circuits
in the package
nR
or nB
D
to nA
100
10
2
no limits
min typ max. min
20
17
140
1.5
7
30
11
9
25
2
1000
1000
T
7
125
amb
74HC
25
21
40 to 85
( C)
max.
150
min.
30
26
40 to 125
max.
UNIT
ns
%
ns
k
pF
s
s
74HC/HCT221
V
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
4.5
to
5.5
2.0
4.5
6.0
2.0
5.0
2.0
5.0
(V)
TEST CONDITIONS
CC
Product specification
WAVEFORMS
C
R
Fig.10
C
R
Fig.10
C
R
Fig.10
C
R
Fig.9
Fig.12
Fig.13
Fig.12
Fig.13
EXT
EXT
EXT
EXT
EXT
EXT
EXT
EXT
= 28 nF;
= 2 k ;
= 1 nF;
= 2 k ;
= 1 nF;
= 10 k ;
= 1000 pF;
= 10 k