MC14538BDR2G

Multivibrators Overview

The MC14538BDR2G is a dual precision monostable multivibrator manufactured by onsemi. It operates within a supply voltage range of 3.0 Vdc to 18 Vdc and supports an operating temperature range from -55°C to +125°C. The device features latched trigger inputs and separate latched reset inputs, allowing for retriggerable and resettable operation. Output pulse width is determined by external timing components RX and CX, with a specified range from 10 μs to 10 s. It is housed in a 16-SOIC surface-mount package.

Multivibrators Feature Summary

• Dual precision monostable multivibrator architecture
• Retriggerable and resettable functionality
• Triggering from positive or negative-going input edges
• Latched trigger and reset inputs

Multivibrators Applications

• Timing circuits requiring precise pulse generation
• Debouncing switches or contacts
• Pulse width modulation applications
• Frequency division circuits

Multivibrators Procurement Notes

Verify the specific ordering suffix to confirm the package type and shipping quantity. The DR2G suffix indicates a SOIC-16 tape and reel configuration. Ensure compatibility with existing PCB footprints and verify that the component meets RoHS compliance requirements for the intended manufacturing process.

Multivibrators Selection Notes

Select this component when dual independent timing channels are required within a single package. It serves as a pin-compatible replacement for MC14528B and CD4528B devices. Consider the wide operating temperature range and high noise immunity characteristics suitable for industrial environments.

Multivibrators Part Context

This part belongs to the MC14538B family of CMOS logic devices. It is designed to provide accurate output pulses over a wide range of widths. The device is Pb-Free and RoHS compliant, aligning with modern environmental standards for electronic components produced by onsemi.

Multivibrators Replacement Considerations

Pin-for-pin compatible with MC14528B and CD4528B (CD4098). For applications requiring pulse widths less than 10 μs with supplies up to 6 V, consider using the MC54/74HC4538A instead.

Multivibrators FAQ

How is the output pulse width determined?

The output pulse width is determined by the values of the external timing resistor (RX) and capacitor (CX), following the relationship T = RX * CX.

Can the device be triggered by both rising and falling edges?

Yes, the device can be triggered from either the positive edge (A Input) or the negative-going edge (B Input).