CD14538BE

Multivibrators Overview

The CD14538BE is a CMOS Dual Precision Monostable Multivibrator manufactured by Texas Instruments. It belongs to the CD4000B logic series and contains two independent monostable circuits within a single package. The device operates on a supply voltage range of 3 V to 18 V, with typical operation at 3.3 V, 5 V, 9 V, and 12 V. It features Schmitt-trigger inputs for noise immunity and supports propagation delays ranging from 220 ns to 600 ns depending on operating conditions. The component is rated for an operating temperature range of -55°C to +125°C and offers output currents of 4.2 mA (low) and -4.2 mA (high).

Multivibrators Feature Summary

• Dual precision monostable multivibrator configuration with two independent circuits.
• CMOS technology ensuring low power consumption and high noise immunity.
• Schmitt-trigger inputs provide clean signal triggering even with slow rise times.
• Wide operating voltage range compatible with standard digital logic levels.

Multivibrators Applications

• Timing delay generation in digital systems.
• Pulse width modulation circuitry.
• Frequency division applications.
• Touch-sensitive switch interfaces.

Multivibrators Procurement Notes

Verify the specific suffix 'BE' against the manufacturer's current datasheet to confirm pinout compatibility and package type, as legacy designations may vary. Ensure the source document explicitly lists CD14538BE as an active or supported part number before procurement, as older TI components often transition to newer suffixes like BNSR or BM96. Cross-reference RoHS compliance status directly from the official product data sheet.

Multivibrators Selection Notes

Select this component when dual independent timing channels are required in a compact form factor. The wide voltage range allows flexibility in mixed-voltage systems. Verify that the required pulse width stability meets the precision specifications outlined in the electrical characteristics table. Consider thermal dissipation limits if operating near maximum temperature ratings.

Multivibrators Part Context

This component is part of the extensive CD4000B family of CMOS logic devices produced by Texas Instruments. The CD14538 series specifically addresses timing and waveform generation needs. It serves as a functional equivalent to other industry-standard dual monostable multivibrators, providing a robust solution for industrial and commercial electronic designs requiring reliable pulse generation.

Multivibrators Replacement Considerations

Direct substitutes include CD14538BNSR and CD14538BM96 from Texas Instruments. Cross-manufacturer equivalents such as the MC14538BDG from onsemi or HEF4538BT from Nexperia offer pin-compatible alternatives with similar electrical performance profiles.