CD74HC4538QPWRQ1

Multivibrators Overview

The CD74HC4538QPWRQ1 is an automotive catalog high-speed CMOS logic dual retriggerable precision monostable multivibrator. It operates within a supply voltage range of 2 V to 6 V and features a maximum power supply current of 8 µA. The device provides low-level output currents of -5.2 mA and high-level output currents of 5.2 mA. Propagation delays are specified at 250 ns, 50 ns, and 43 ns depending on conditions. It functions reliably across a temperature range from -55 °C to +125 °C and is housed in a 16-pin SOIC narrow package.

Multivibrators Feature Summary

• Dual retriggerable and resettable precision monostable multivibrator configuration
• Automotive catalog qualification for reliable performance in vehicle electronics
• High-speed CMOS technology enabling low power consumption and fast switching

Multivibrators Applications

• Fixed-voltage timing applications in automotive systems
• Pulse width modulation circuits
• Timing delay generation
• Frequency division circuits

Multivibrators Procurement Notes

Verify the specific ordering suffix to ensure the correct package type and tape-and-reel quantity match your assembly requirements. Confirm that the component meets AEC-Q100 standards if required for your specific automotive tier. Check the datasheet for the latest RoHS compliance status and lead time estimates directly from Texas Instruments or authorized distributors before finalizing procurement plans.

Multivibrators Selection Notes

Select this component when designing automotive logic circuits requiring precise monostable timing with retriggering capabilities. Ensure the operating voltage stays within the 2 V to 6 V range. Consider the 16-SOIC package dimensions for PCB layout constraints. Verify that the propagation delay specifications meet the system's timing requirements under the expected load capacitance and supply voltage conditions.

Multivibrators Part Context

This part belongs to the Texas Instruments CD74HC4538-Q1 series, which is designed for automotive applications. It is a variant of the standard CD74HC4538 but includes additional quality and reliability testing consistent with automotive catalog standards. The 'Q1' suffix indicates its qualification for automotive use, while 'PWR' denotes the TSSOP-20 package in some contexts, though datasheets may reference SOIC; verify the exact package marking against the physical component.

Multivibrators Replacement Considerations

Direct substitutes include other automotive-grade dual monostable multivibrators from Texas Instruments such as the CD74HC4538M96G4 for non-automotive grades, or checking for updated revisions within the same Q1 family. Ensure pin compatibility and electrical parameters match exactly when cross-referencing with other manufacturers' equivalents.