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参数资料
| 型号： | M54HC423A |
| 厂商： | 意法半导体 |
| 英文描述： | DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
| 中文描述： | 双RETRIGGERABLE单稳态触发器 |
| 文件页数： | 1/14页 |
| 文件大小： | 290K |
| 代理商： | M54HC423A |
M54HC423/423A
M74HC423/423A
October 1993
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
.
HIGH SPEED
t
PD
= 25 ns(TYP) at V
CC
= 5V
.
LOWPOWER DISSIPATION
STANDBYSTATEI
CC
=4
μ
A(MAX.) ATT
A
=25
°
C
ACTIVESTATEI
CC
=700
μ
A (MAX.)ATV
CC
=5V
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
I
OH
= I
OL
= 4 mA (MIN.)
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO6 V
.
WIDE OUTPUTPULSE WIDTHRANGE
t
WOUT
= 120 ns
～
60 s OVER AT V
CC
= 4.5 V
.
PIN AND FUNCTION COMPATIBLE WITH
54/74LS423
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R
M74HCXXXB1R
M74HCXXXM1R
M74HCXXXC1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
The M54/74HC423/423A are high speed CMOS
MONOSTABLE
multivibrators
silicon gate C
2
MOS technology.
They achieve the high speed operation similar to
equivalent LSTTL while maintaining the CMOS low
power dissipation. There are two trigger inputs, A
INPUT (negative edge) and B INPUT (positive
edge). These inputs are valid for rising/falling
signals, (t
r
– t
f
– 1 sec). After triggering the output
maintains the MONOSTABLE state for the time
period determined by the external resistor Rx and
capacitor Cx.
Two different pulse width constant are available:
K
0.46 for HC423
K
1 for HC423A.
Taking CLR low breaks this MONOSTABLE
STATE. If the next trigger pulse occurs during the
MONOSTABLEperiod itmakes theMONOSTABLE
period longer. Limit for values of Cx and Rx :
Cx : NO LIMIT
Rx : V
CC
< 3.0 V 5 K
to 1 M
V
CC
≥
3.0 V 1 K
to 1 M
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
fabricated
with
DESCRIPTION
1/14
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| M54HC423AF1R | DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
| M54HC423C1R | Single Nanopower Push-Pull Output Comparator 5-SOT-23 -40 to 125 |
| M54HC423M1R | DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M54HC423AB1R | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
| M54HC423AC1R | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
| M54HC423AF1R | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
| M54HC423AM1R | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
| M54HC423B1R | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
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