74HC123 Datasheet, PDF (11/24 Pages) NXP Semiconductors – Dual retriggerable monostable multivibrator with reset

NXP Semiconductors
74HC123; 74HCT123
Dual retriggerable monostable multivibrator with reset
10⁶
t_W
(ns)
10⁵
10⁴
10³
10²
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(1)
(2)
(3)
(4)
0.8
'K' factor
0.6
0.4
0.2
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10
1
10
10²
10³
10⁴
C_EXT (pF)
0
0
2
4
6
8
V_CC (V)
V_CC = 5.0 V; T_amb = 25 °C.
(1) R_EXT = 100 kΩ
(2) R_EXT = 50 kΩ
(3) R_EXT = 10 kΩ
(4) R_EXT = 2 kΩ
Fig 7. Typical output pulse width as a function of the
external capacitor value
C_EXT = 10 nF; R_EXT = 10 kΩ to 100 kΩ.
T_amb = 25 °C.
Fig 8. 74HC123 typical ‘K’ factor as function of V_CC
74HC_HCT123_5
Product data sheet
Rev. 05 — 13 July 2009
© NXP B.V. 2009. All rights reserved.
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