SLV74HC4538ADR2G

Overview

The SLV74HC4538ADR2G is a dual precision monostable multivibrator manufactured by onsemi. It operates within a supply voltage range of 2 V to 6 V and features propagation delays of 30 ns. The device utilizes advanced silicon-gate CMOS technology, offering speeds comparable to low-power Schottky TTL while maintaining high noise immunity. It includes both negative (A) and positive (B) transition-triggered inputs, which can also serve as inhibit inputs, along with a clear input for resetting the circuit. The output pulse width is determined by external resistor and capacitor values.

Feature Summary

• Dual independent monostable circuits with precision timing capabilities
• Compatible with both positive and negative edge triggering inputs
• Retriggerable functionality allowing pulse extension during generation
• High noise immunity characteristic of CMOS technology

Applications

• Timing pulse generation in digital systems
• Debouncing switches or contacts
• Pulse width modulation circuits
• Frequency division applications

Procurement Notes

Verify the specific suffix 'ADR2G' against official onsemi documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage requirements between 2 V and 6 V. Check for RoHS compliance status in the latest datasheet revision. Confirm lead-free status if required by assembly processes. Validate pinout alignment with existing PCB footprints before procurement.

Selection Notes

Select this component when precise monostable timing is required in a compact SOIC-16 package. It is suitable for designs needing retriggerable behavior and dual-channel independence. Consider its CMOS power consumption advantages over TTL alternatives. Ensure external RC components are selected to meet specific pulse width requirements defined by the device equation.

Part Context

This part belongs to the 74HC series of logic integrated circuits from onsemi. It is functionally similar to other monostable multivibrators like the MC74HC4538ADTR2, though package and availability may differ. The SLV prefix often indicates automotive or specialized grade variants within the manufacturer's portfolio, requiring verification of temperature ranges and reliability standards in official documents.

Replacement Considerations

The MM74HC4538 is noted as pin-compatible with CD4538 devices. Verify electrical characteristics such as propagation delay and supply current when substituting with other 74HC series monostable multivibrators. Ensure the replacement supports the required retriggerable mode and input trigger polarities.