HI4-0549/883

Analog Switches, Multiplexers, Demultiplexers Overview

The HI4-0549/883 is a CMOS analog multiplexer/demultiplexer manufactured by Harris Corporation. It features dual independent circuits, each configured as a 4:1 switch. The device utilizes a 20-pin CLCC package measuring 8.89x8.89 mm. Key electrical specifications include an on-state resistance of 1.5 kOhm and a 4PST switch configuration per circuit. It operates within a temperature range of -55°C to 125°C and supports surface mount installation.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual independent 4:1 analog signal routing circuits
• CMOS technology for low power consumption
• High reliability in extended industrial temperature ranges

Analog Switches, Multiplexers, Demultiplexers Applications

• Analog signal switching systems
• Data acquisition front ends
• Instrumentation signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the manufacturer origin carefully, as Harris Corporation's semiconductor business was acquired by Intersil. Ensure the component matches the specific 20-CLCC package dimensions and pinout. Confirm that the 1.5kOhm on-resistance meets system requirements, as this value is higher than typical high-performance switches.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual-channel 4:1 analog switching is required with robust thermal performance. The high on-state resistance suggests suitability for high-impedance signal paths rather than low-impedance loads. Consider the 20-CLCC package for applications requiring hermetic sealing or specific board space constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the HI4 series of analog multiplexers from Harris Corporation. The company's semiconductor division was later acquired by Intersil, which continued production under the Intersil brand. The HI4-0549 represents a specific quad differential mux variant within this lineage.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes may be found under the Intersil brand name due to the corporate acquisition. Verify pin compatibility and electrical parameters against current Intersil datasheets before replacement.