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PDF M54HC4538F1R Data sheet ( Hoja de datos )
| Número de pieza | M54HC4538F1R | |
| Descripción | DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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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
1/14
1 page  
M 54/ M74H C4538
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC Supply Voltage
-0.5 to +7
V
VI DC Input Voltage
-0.5 to VCC + 0.5
V
VO DC Output Voltage
-0.5 to VCC + 0.5
V
IIK DC Input Diode Current
IOK DC Output Diode Current
IO DC Output Source Sink Current Per Output Pin
± 20 mA
± 20 mA
± 25 mA
ICC or IGND DC VCC or Ground Current
± 50 mA
PD Power Dissipation
500 (*)
mW
Tstg Storage Temperature
-65 to +150
oC
TL Lead Temperature (10 sec)
300 oC
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.
(*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
VCC Supply Voltage
2 to 6
V
VI Input Voltage
0 to VCC
V
VO Output Voltage
Top Operating Temperature: M54HC Series
M74HC Series
0 to VCC
-55 to +125
-40 to +85
V
oC
oC
tr, tf Input Rise and Fall Time (CLR only)
VCC = 2 V
VCC = 4.5 V
0 to 1000
0 to 500
ns
VCC = 6 V
0 to 400
CX External Capacitor
NO LIMITATION (*)
RX External Resistor
VCC ≤ 3 V
VCC > 3 V
5K to 1M (*)
1K to 1M (*)
Ω
(*) The maximum allowable values of Cx and Rx are a function of leakage of capacitor Cx, the leakage of device and leakage due to the board
layout and surface resistance. Susceptibility to externally induced noise may occur for Rx > 1MΩ
5/14
5 Page 
DIM.
A
B
D
E
e3
F
G
H
L
M
N
P
Q
M 54/ M74H C4538
Ceramic DIP16/1 MECHANICAL DATA
MIN.
0.38
2.29
0.4
1.17
0.22
0.51
7.8
mm
TYP.
3.3
17.78
MAX.
20
7
2.79
0.55
1.52
0.31
1.27
10.3
8.05
5.08
MIN.
0.015
0.090
0.016
0.046
0.009
0.020
0.307
inch
TYP.
0.130
0.700
MAX.
0.787
0.276
0.110
0.022
0.060
0.012
0.050
0.406
0.317
0.200
P053D
11/14
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