m54hc4538k1 STMicroelectronics, m54hc4538k1 Datasheet - Page 2

• Manufacturer Part Number: m54hc4538k1
• Description: Dual Retriggerable Monostable Multivibrator
• Manufacturer: STMicroelectronics

M54HC4538
Figure 1: IEC Logic Symbols
Figure 2: Input And Output Equivalent Circuit
Table 2: TRUTH TABLE
X : Don’t Care
2/13
A
X
H
X
L
INPUTS
B
H
X
X
L
CD
H
H
H
H
L
Q
L
L
L
OUTPUTS
Table 1: Pin Description
Q
H
H
H
PIN N°
1, 15
2, 14
3, 13
4, 12
6, 10
5, 11
7, 9
16
8
1CD, 2CD
SYMBOL
1T1, 2T1
1T2, 2T2
Q1, Q2
Q1, Q2
1A, 2A
1B, 2B
GND
V
CC
OUTPUT ENABLE
OUTPUT ENABLE
INHIBIT
INHIBIT
INHIBIT
External Capacitor Con-
nections
External Resistor/
Capacitor Connections
Direct Reset Inputs
(Active Low)
Trigger Inputs (LOW to
HIGH, Edge-Triggered)
Trigger Inputs (HIGH to
LOW, Edge Triggered)
Pulse Outputs
Complementary Pulse
Outputs
Ground (0V)
Positive Supply Voltage
NOTE
NAME AND FUNCTION