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參數(shù)資料
| 型號： | 74LV423PWDH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 諧振器 |
| 英文描述： | Dual retriggerable monostable multivibrator with reset |
| 中文描述： | LV/LV-A/LVX/H SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16 |
| 封裝： | PLASTIC, TSSOP1-16 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大小： | 156K |
| 代理商： | 74LV423PWDH |
Philips Semiconductors
Preliminary specification
74LV423
Dual retriggerable monostable multivibrator
with reset
1997 Feb 04
4
LOGIC DIAGRAM
R
nR
EXT
/C
EXT
V
CC
Q
Q
R
D
R
R
CL
CL
V
CC
CL
CL
CL
A
B
SV00163
V
CC
It is recommended that Pin 6 (2C
EXT
) and Pin 14 (1C
EXT
) by externally grounded to Pin 8 (GND)
FUNCTION TABLE
INPUTS
nA
X
H
X
L
↓
OUTPUTS
nQ
L
L *
L *
nR
D
L
X
X
H
H
nB
X
X
L
↑
H
nQ
H
H *
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
V
CC
R
EXT
C
EXT
to nC
(pin 14 or 6)
to nR
/C
EXT
(pin 15 or 7)
SV00101
Figure 1. Timing Component Connection
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