HI1-0509-5

Overview

The HI1-0509-5 is a differential 4-channel multiplexer manufactured by Renesas Electronics Corporation. It utilizes Dielectric Isolation (DI) CMOS technology to eliminate latch-up issues and reduce substrate leakage. The device integrates an array of four analog switches, a digital decoder circuit for channel selection, and an internal voltage reference for logic thresholds. It supports dual power supplies with a maximum rating of 22V and operates within a temperature range of -55°C to +125°C. Key electrical parameters include a maximum on-resistance of 180Ω, a maximum access time of 250ns, and a maximum supply current of 3mA.

Feature Summary

• Dielectric Isolation process ensures latch-up immunity and low parasitic capacitance
• Internal +5V reference enables direct interface with TTL, CMOS, DTL, and PMOS logic families
• Break-before-make switching prevents signal shorting during channel transitions
• Integrated transient protection includes series resistors and diode clamps on digital inputs

Applications

• Harsh environment data acquisition systems requiring MIL-STD-883 qualification
• High-reliability industrial instrumentation and control circuits
• Aerospace and defense signal routing applications

Procurement Notes

Verify the specific suffix designation carefully, as variants such as HI9P0509-5Z may indicate lead-free or RoHS-compliant versions with different availability status. Confirm moisture sensitivity levels and storage conditions prior to handling. Check for obsolescence notifications or alternate manufacturing site changes issued by Renesas. Ensure the ordering code matches the required package type and environmental rating for your specific design constraints.

Selection Notes

Select this component when latch-up immunity is critical for high-voltage or noisy environments. The DI process offers superior performance compared to conventional junction-isolated CMOS. Consider the 180Ω on-resistance and 250ns access time against system bandwidth requirements. Verify that the ±15V analog signal range aligns with input specifications. Ensure compatibility with available logic families due to the fixed internal threshold reference.

Part Context

The HI1-0509-5 belongs to the HI-506/HI-507/HI-508/HI-509 family of monolithic CMOS multiplexers. It serves as the differential 4-channel variant within this lineup. The HI1 prefix typically denotes the military or harsh-environment qualified version of the standard Intersil/Renesas HI-509 part. This family shares common architectural features including integrated decoders and enable inputs for multi-device cascading.

Replacement Considerations

Public documentation confirms that the JM38510/19008BEA is the JAN version equivalent to the HI1-0509. It directly replaces the DG509A/DG509AA parts. Designers should verify pinout compatibility and parameter tolerances when substituting between these specific equivalents.