74HC123; 74HCT123
NXP Semiconductors
Dual retriggerable monostable multivibrator with reset
001aaa611
001aaa612
6
10
0.8
t
W
'K' factor
0.6
(ns)
(1)
(2)
5
4
3
2
10
(3)
(4)
10
10
10
0.4
0.2
0
10
2
3
4
1
10
10
10
10
(pF)
0
2
4
6
8
C
V
(V)
CC
EXT
VCC = 5.0 V; Tamb = 25 C.
EXT = 100 k
CEXT = 10 nF; REXT = 10 k to 100 k.
amb = 25 C.
(1)
R
T
(2) REXT = 50 k
(3) REXT = 10 k
(4)
REXT = 2 k
Fig 7. Typical output pulse width as a function of the
external capacitor value
Fig 8. 74HC123 typical ‘K’ factor as function of VCC
74HC_HCT123
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 8 — 16 December 2011
11 of 25
NXP [ NXP ]
