參數(shù)資料
型號(hào): 935210250118
廠商: NXP SEMICONDUCTORS
元件分類: 諧振器
英文描述: LV/LV-A/LVX/H SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
封裝: 3.90 MM, PLASTIC, MS-012, SOT-109-1, SO-16
文件頁數(shù): 15/20頁
文件大?。?/td> 259K
代理商: 935210250118
Philips Semiconductors
Product data
74LV123
Dual retriggerable monostable multivibrator
with reset
2003 Mar 13
4
LOGIC DIAGRAM
R
nREXT/CEXT
VCC
Q
RD
RR
CL
VCC
CL
R
A
B
SV00100
VCC
It is recommended that Pin 6 (2CEXT) and Pin 14 (1CEXT) by externally grounded to Pin 8 (GND)
FUNCTION TABLE
INPUTS
OUTPUTS
nRD
nA
nB
nQ
L
X
L
H
X
H
X
L *
H *
X
L
L *
H *
H
L
H
H
L
H
NOTES:
*
If the monostable was triggered before this condition was
established, the pulse will continue as programmed.
H = HIGH voltage level
L = LOW voltage level
X = don’t care
↑ = LOW-to-HIGH transition
↓ = HIGH-to-LOW transition
= one HIGH level output pulse
= one LOW level output pulse
VCC
REXT
CEXT
to nCEXT
(pin 14 or 6)
to nREXT/CEXT
(pin 15 or 7)
SV00101
Figure 1.
Timing component connection
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