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M54HC4538 fiches techniques PDF

ST Microelectronics - DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR

Numéro de référence M54HC4538
Description DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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M54HC4538 fiche technique
M54HC4538
M74HC4538
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
. HIGH SPEED
tPD = 25 ns (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
STANDBY STATEICC =4 µA (MAX.) AT TA = 25 °C
ACTIVE STATE ICC = 200 µA (TYP.) AT VCC = 5 V
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OUTPUT PULSE WIDTH RANGE
tWOUT = 120 ns ~ 60 s OVER AT VCC = 4.5 V
. OUTPUT PULSE WIDTH INDEPENDENT
FROM TRIGGER INPUT PULSE WIDTH
. PIN AND FUNCTION COMPATIBLE
WITH 4538B
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HC4538F1R M74HC4538M1R
M74HC4538B1R M74HC4538C1R
PIN CONNECTIONS (top view)
DESCRIPTION
The M54/74HC4538 is a high speed CMOS DUAL
MONOSTABLEMULTIVIBRATOR fabricated in sili-
con gate C2MOS technology. It has the same high
speed performance of LSTTL combined with true
CMOS low power consumption. Each multivibrator
features both a negative, A, and a positive, B, edge
triggered input, either of which can be used as an in-
hibit input. Also included is a clear input that when
taken low resets the one shot. The monostable
multivibrators are retriggerable. That is, they may be
triggered reapeatedly while their outputs are gener-
ating a pulse and the pulse will be extended. Pulse
width stability over a wide range of temperature and
supply is achieved using linear CMOS techniques.
The output pulse equation is simply :
PW = 0.7 (R)(C) where PW is in seconds, R in
Ohms, and C is in Farads.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
October 1993
NC =
No Internal
Connection
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M54HC4538 DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR ST Microelectronics
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M54HC4538 DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR ST Microelectronics
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M54HC4538F1R DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR ST Microelectronics
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M54HC4538F1R DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR ST Microelectronics
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