74HCT4538PW-Q100,1

Multivibrators Overview

The Nexperia 74HCT4538PW-Q100,1 is a dual retriggerable-resettable monostable multivibrator in a TSSOP16 package (SOT403-1). It operates within a supply voltage range of 4.5 V to 5.5 V and supports temperatures from -40 °C to +125 °C. The device features TTL input levels, Schmitt-trigger action for slow edge tolerance, and separate reset inputs. Pulse width is determined by external components using the formula TW = 0.7 × REXT × CEXT.

Multivibrators Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Dual precision monostable multivibrators with retriggerable functionality
• TTL-compatible input levels with high noise immunity
• Schmitt-trigger inputs tolerant of slow rise and fall times

Multivibrators Applications

• Automotive electronic systems requiring precise timing control
• Pulse generation and waveform shaping circuits
• Timing delay applications utilizing external RC networks
• Systems necessitating robust ESD protection and latch-up performance

Multivibrators Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the automotive grade qualification aligns with project reliability requirements. Ensure external timing component selections remain within specified resistance and capacitance limits to maintain pulse width accuracy across the full operating temperature range.

Multivibrators Selection Notes

Select this component when dual independent monostable functions are required in an automotive environment. The HCT logic family ensures compatibility with standard TTL interfaces. Verify that the TSSOP16 footprint fits the PCB layout constraints. Consider the power dissipation derating characteristics if operating near maximum ambient temperatures.

Multivibrators Part Context

This part belongs to the Nexperia 74HCT4538-Q100 series of dual monostable multivibrators. It shares functional similarities with other automotive-grade logic ICs but is distinct in its specific timing architecture and pin configuration. The PW suffix indicates the Thin Shrink Small Outline Package, differentiating it from SO packages.

Multivibrators Replacement Considerations

Direct substitutes include the 74HC4538PW-Q100,11 for HC logic level compatibility. Non-automotive equivalents like the standard 74HCT4538PW may be considered if AEC-Q100 qualification is not mandatory.