74HC_HCT221_CNV_15 Datasheet, PDF (7/15 Pages) NXP Semiconductors – Dual non-retriggerable monostable multivibrator with reset

Philips Semiconductors
Dual non-retriggerable monostable
multivibrator with reset
Product specification
74HC/HCT221
SYMBOL PARAMETER
t_W
t_W
t_W
t_W
t_rem
R_EXT
C_EXT
output pulse width
nQ or nQ
output pulse width
nQ or nQ
output pulse width
nQ or nQ
pulse width match
between circuits
in the package
removal time
nR_D to nA
or nB
external timing resistor
external timing capacitor
T_amb (°C)
74HC
UNIT
+25
−40 to +85 −40 to +125
min typ max. min max. min. max.
140
−
−
ns
1.5
−
−
µs
7
−
−
µs
±2
−
−
%
100 30
125
150
ns
20 11
25
30
17 9
21
26
10
1000 −
−
kΩ
2
1000 −
−
no limits
pF
TEST CONDITIONS
V_CC ^WAVEFORMS
(V)
2.0 C_EXT = 28 nF;
4.5 R_EXT = 2 kΩ;
6.0 Fig.10
2.0 C_EXT = 1 nF;
4.5 R_EXT = 2 kΩ;
6.0 Fig.10
2.0 C_EXT = 1 nF;
4.5 R_EXT = 10 kΩ;
6.0 Fig.10
4.5 C_EXT = 1000 pF;
to R_EXT = 10 kΩ
5.5
2.0 Fig.9
4.5
6.0
2.0 Fig.12
5.0 Fig.13
2.0 Fig.12
5.0 Fig.13
December 1990
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