CD74HC4538EE4

Multivibrators Overview

The CD74HC4538EE4 is a dual retriggerable precision monostable multivibrator from the Texas Instruments HC logic family. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range of -55°C to 125°C. The device features Schmitt trigger inputs on A and B terminals, allowing triggering from leading or trailing edges. Propagation delays are independent of external timing components RX and CX. It provides separate resets for each channel and buffered Q and Q outputs.

Multivibrators Feature Summary

• Retriggerable and resettable capability with independent control per channel
• Schmitt trigger inputs on A and B terminals for noise immunity
• Triggering from either the leading edge (A) or trailing edge (B)
• Balanced propagation delay and transition times

Multivibrators Applications

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

Multivibrators Procurement Notes

Verify the complete part number including the EE4 suffix to ensure correct PDIP-16 packaging and lead finish specifications. Confirm RoHS compliance status and moisture sensitivity level ratings prior to assembly. Check current production status as package options may change over time.

Multivibrators Selection Notes

Select this component when dual precision monostable functionality is required in high-speed CMOS logic environments. Ensure supply voltage requirements align with the 2V to 6V operational range. Consider thermal management for operation at the upper limit of the specified temperature range.

Multivibrators Part Context

This device belongs to the Texas Instruments CD74HC4538 series of high-speed CMOS logic devices. It is functionally compatible with other 74HC4538 variants but differs in packaging and environmental qualifications. The EE4 suffix indicates specific manufacturing and material attributes defined by Texas Instruments.

Multivibrators Replacement Considerations

CD74HC4538E is a direct pin-compatible alternative in the same PDIP-16 package. Verify electrical specifications and package dimensions match application requirements before substitution.