CD4538 Dual Precision Monostable Multivibrator DIP-16 (CD4538 DIP IC)
The CD4538 is a high-voltage CMOS integrated circuit containing two independent, precision monostable multivibrators (one-shot timers). It is an advanced version of the CD4528, offering superior pulse-width stability and accuracy. Each multivibrator is both retriggerable and resettable, allowing for the generation of highly precise output pulses defined by external resistor and capacitor (RC) networks.
This IC is primarily used for precision pulse width control, time delay generation, and signal synchronization in high-reliability digital systems. It is a fundamental component for Arduino electronics projects in India involving edge detection, missing pulse detectors, and creating exact timing intervals for industrial automation.
Key Features
- Dual independent precision monostable multivibrators
- High pulse-width stability (typically 1 percent)
- Retriggerable and resettable operation
- Triggering from either positive or negative edge
- Wide range of output pulse widths via external RC components
- High noise immunity greater than 45 percent
- Low power consumption typical of 4000 series logic
- Buffered complementary outputs (Q and Q')
Specifications
- IC Type = Precision Monostable Multivibrator
- Logic Family = CD4000
- Supply Voltage = 3V to 18V
- Package Type = DIP
- Number of Pins = 16
- Mounting Type = Through-Hole
- Pulse Width Accuracy = +/- 1 percent at 5V
- Operating Temperature = -55 to 125 degrees Celsius
Interfaces
- 1A, 2A = Positive-Edge Trigger Inputs
- 1B, 2B = Negative-Edge Trigger Inputs
- 1CD, 2CD = Clear (Reset) Inputs (Active Low)
- 1Q, 2Q = Buffered Pulse Outputs
- 1Q', 2Q' = Inverted Pulse Outputs
- 1CX, 2CX = External Capacitor Connections
- 1RXCX, 2RXCX = External Resistor/Capacitor Connections
- VSS = Ground (0V)
- VDD = Positive Supply Voltage
