CD54HC4538F

Multivibrators Overview

The CD54HC4538F is a dual retriggerable precision monostable multivibrator manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports an extended temperature range from -55°C to +125°C. The device features Schmitt trigger inputs on A and B terminals, allowing triggering from either the leading or trailing edge of input pulses. Propagation delays for both trigger and reset transitions are independent of external timing components RX and CX.

Multivibrators Feature Summary

• Dual retriggerable and resettable monostable multivibrator architecture
• Schmitt trigger inputs on A and B terminals for noise immunity
• Triggering capability from both leading and trailing edges
• Propagation delays independent of external resistor and capacitor values

Multivibrators Applications

• Fixed voltage timing applications
• Pulse width generation
• Timing delay circuits
• Frequency division

Multivibrators Procurement Notes

Verify the complete part number including suffixes when ordering. Confirm that the specific package variant matches the design requirements. Ensure proper electrostatic discharge handling procedures are followed during assembly and storage due to CMOS sensitivity.

Multivibrators Selection Notes

Select this component for high-speed CMOS logic applications requiring precise timing control. Verify compatibility with system voltage levels between 2V and 6V. Consider the wide operating temperature range for harsh environments. Check pinout configurations against existing board layouts.

Multivibrators Part Context

This device belongs to the HC/UH series of high-speed CMOS logic devices. It is functionally similar to other monostable multivibrators but offers specific retriggerable capabilities. The military-grade packaging ensures reliability in demanding conditions compared to standard commercial variants.

Multivibrators Replacement Considerations

CD54HC4538F3A