m74hc4538 STMicroelectronics, m74hc4538 Datasheet - Page 2

• Manufacturer Part Number: m74hc4538
• Description: Dual Retriggerable Monostable Multivibrator
• Manufacturer: STMicroelectronics

Pin connection and IEC logic symbols
1
2/18
Pin connection and IEC logic symbols
Figure 1.
Table 2.
Pin number
1, 15
2, 14
3, 13
4, 12
5, 11
6, 10
7, 9
16
8
Outputs
Inputs
Pin connections and IEC logic symbols
Pin description
1CD
GND
1T2
1T1
1A
1B
Q1
Q1
1CD, 2CD
1T1, 2T1
1T2, 2T2
Symbol
Q1, Q2
Q1, Q2
1A, 2A
1B, 2B
1
2
3
4
5
6
7
8
GND
V
CC
External capacitor connections
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 (0 V)
Positive supply voltage
16
15
14
13
12
11
10
9
2CD
2A
V CC
Q2
2T1
2T2
2B
Q2
Outputs
Inputs
Name and function
M74HC4538