HCS320T/SN Code Hopping Encoder Equivalent & Substitute Parts

Part Overview

The HCS320T/SN is a Code Hopping Encoder IC manufactured by Microchip Technology, designed for secure remote access and keyless entry applications. This device is part of the KEELOQ® series and features an 8-SOIC surface mount package.

The HCS320T/SN has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this encoder technology.

Substiute Parts

HCS320T/SN

Microchip TechnologyIn Stock: 1147HCS320T/SN Datasheet

Current PartRFQ

HCS320/SN

Microchip TechnologyIn Stock: 993HCS320/SN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCS320T/SN is determined by the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: Microchip Technology
• Series: KEELOQ®
• Type: Code Hopping Encoder
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Applications: Remote Secure Access, Keyless Entry
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The HCS320/SN qualifies as a direct substitute based on identical electrical specifications, mechanical packaging, and compliance certifications. The primary distinction is product status: HCS320T/SN is obsolete, while HCS320/SN maintains active production status.

Parameter Comparison

Engineering Selection Recommendations

The HCS320/SN is the direct substitute for the obsolete HCS320T/SN. Selection of HCS320/SN is based on the following engineering criteria:

Product Status: HCS320/SN maintains active production status with Microchip Technology, ensuring ongoing availability and supply chain support. The HCS320T/SN obsolete designation necessitates transition to an active equivalent.

Compliance Certifications: Both parts maintain identical RoHS3 compliance and REACH unaffected status, confirming regulatory equivalence for applications in regulated markets.

Electrical and Mechanical Specifications: All functional parameters, package dimensions, and mounting characteristics are identical between the two parts, enabling direct substitution without circuit redesign or PCB layout modification.

Export Classification: HCS320/SN carries EAR99 classification, providing standard export control treatment for commercial applications.

Frequently Asked Questions (FAQ)

Q: Can HCS320/SN be used as a direct replacement for HCS320T/SN in existing designs?

A: Yes. HCS320/SN is electrically and mechanically identical to HCS320T/SN. No circuit modifications, firmware changes, or PCB layout adjustments are required. The parts are pin-compatible and functionally equivalent.

Q: What is the primary reason for substitution?

A: HCS320T/SN has reached obsolete product status. HCS320/SN is the active production equivalent from Microchip Technology, ensuring continued supply availability and manufacturer support.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 8-SOIC package with 0.154" width and 3.90mm body width. PCB footprints and assembly processes remain unchanged.

Q: Do compliance certifications differ between the two parts?

A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical Moisture Sensitivity Level (MSL) ratings. Regulatory requirements are satisfied by either part.

Q: Is there any difference in application suitability?

A: No. Both parts are specified for identical applications: Remote Secure Access and Keyless Entry systems. Functional performance in these applications is equivalent.

Q: What is the inventory status for each part?

A: HCS320T/SN has 1123 pieces in stock. HCS320/SN has 937 pieces in stock. Both are available as new original components.