CD4538 Monostable Multivibrator IC (DIP-16 Package)

CD4538 Monostable Multivibrator IC is a highly reliable CMOS-based integrated circuit designed for precision timing, pulse generation, and one-shot applications. Known for its excellent stability, wide operating voltage range, and low power consumption, the CD4538 is widely used in industrial, consumer electronics, and embedded system designs.

This IC contains two independent, retriggerable monostable multivibrators with separate inputs and outputs, enabling flexible and accurate timing control. With externally adjustable timing components, the CD4538 allows designers to generate precise output pulses over a wide time range, making it ideal for delay circuits, pulse stretching, and waveform shaping applications.

Key Features of CD4538 Monostable Multivibrator IC

• Dual precision monostable multivibrators in a single package

• Retriggerable operation, allowing pulse extension if triggered again

• Wide operating voltage range from 3V to 18V

• High timing accuracy and stability over temperature variations

• Low power CMOS design, ideal for battery-powered systems

• Independent control of each monostable section

• Positive-edge triggered inputs for reliable operation

• Schmitt-trigger inputs for enhanced noise immunity

• TTL and CMOS logic compatibility

• Externally programmable pulse width using resistor and capacitor

The CD4538 is designed to deliver consistent and repeatable timing pulses, ensuring dependable system performance even in noisy or demanding environments.

Detailed Specifications

• IC Type: Dual Precision Monostable Multivibrator

• Logic Family: CMOS

• Operating Supply Voltage (VDD): 3V to 18V

• Number of Monostables: 2

• Trigger Type: Positive edge triggered

• Retriggerable: Yes

• Output Type: Complementary Q and Q̅ outputs

• Timing Control: External resistor and capacitor

• Pulse Width Range: From microseconds to several seconds (depending on RC values)

• Propagation Delay: Low and stable

• Power Consumption: Very low (CMOS technology)

• Package Types: DIP-16 / SOP-16 (varies by manufacturer)

• Operating Temperature Range: –40°C to +85°C

The pulse duration is directly proportional to the external resistor-capacitor combination, offering designers full flexibility in timing configuration.

Applications of CD4538 Monostable Multivibrator IC

The CD4538 IC is extensively used in applications requiring precise timing, controlled pulse generation, or event-driven output signals. Common applications include:

• One-shot pulse generation circuits

• Time delay circuits

• Pulse stretching and shaping

• Debouncing circuits for mechanical switches

• Watchdog timers

• Frequency division and timing control

• Digital logic timing synchronization

• Reset and power-on delay circuits

• Industrial automation systems

• Consumer electronics timing modules

Its retriggerable feature makes it especially useful in systems where continuous triggering is required to maintain an output signal.

Why Choose CD4538 Monostable Multivibrator?

The CD4538 stands out due to its high precision, low power consumption, and design flexibility. Unlike standard monostable ICs, it provides two independent timing circuits in a single package, reducing component count and board space. The wide supply voltage range allows seamless integration into both low-voltage and high-voltage digital systems.

With its robust CMOS architecture, the CD4538 offers excellent noise immunity and long-term reliability, making it a preferred choice for engineers, students, and hobbyists alike. Whether used in embedded projects, educational labs, or commercial products, this IC delivers dependable performance with minimal external components.

The CD4538 Dual Precision Monostable Multivibrator IC is a versatile and efficient timing solution for modern electronic designs. Featuring dual retriggerable monostables, wide voltage compatibility, low power operation, and externally programmable pulse widths, it meets the demands of a wide range of applications. If you are looking for a reliable IC for precise pulse generation and timing control, the CD4538 is an excellent choice.

Package Includes:

1 x CD4538 Dual Precision Monostable Multivibrator IC (DIP-16 Package)

FAQ

1. Where can we buy this CD4538 Monostable Multivibrator IC?

This product is available online https://aiiottech.in/product/cd4518-dual-bcd-up-counter-ic/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this CD4538 Monostable Multivibrator IC after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: CD4538 Monostable Multivibrator IC