74HC_HCT221_CNV_15 Datasheet, PDF (10/15 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_rem
R_EXT
trigger pulse width
nQ or nQ
removal time
nR_D to nA or nB
external timing resistor
T_amb (°C)
TEST CONDITIONS
74HCT
+25
−40 to +85
−40 to +125
UNIT
V_CC
(V)
min typ max min max. min. max.
WAVEFORMS
7
−
−
µs 4.5 C_EXT = 1 nF;
R_EXT = 10 kΩ;
Fig.10
20 12
25
30
ns 4.5 Fig.9
2
1000 −
−
kΩ 5.0 Fig.13
C_EXT
external timing capacitor no limits
pF 5.0 Fig.13
December 1990
10