Equivalent & Substitute Parts for 93AA46AX-I/SN

Part Overview

The 93AA46AX-I/SN is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol and 8-SOIC surface mount packaging. This non-volatile memory device operates across a wide supply voltage range of 1.8V to 5.5V and supports industrial temperature specifications from -40°C to 85°C. The part is currently in active production status and maintains full ROHS3 compliance. Equivalent and substitute parts are identified when all critical electrical and mechanical parameters align with the original specification, ensuring direct functional interchangeability in circuit applications.

Substiute Parts

93AA46AX-I/SN

Microchip TechnologyIn Stock: 92693AA46AX-I/SN Datasheet

Current PartRFQ

93AA46A-I/SN

Microchip TechnologyIn Stock: 2509993AA46A-I/SN Datasheet

MFR RecommendedRFQ

93AA46AE48-I/SN

Microchip TechnologyIn Stock: 131293AA46AE48-I/SN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 93AA46AX-I/SN are qualified based on strict equivalence across all critical parameters. The substitution logic is determined by the following mandatory criteria:

• Memory capacity and organization (1Kbit, 128 x 8 configuration)
• Serial interface protocol (Microwire)
• Operating frequency (2 MHz)
• Write cycle timing (6ms word/page write)
• Supply voltage compatibility (1.8V ~ 5.5V range)
• Temperature rating (-40°C ~ 85°C)
• Physical package specification (8-SOIC with 3.90mm width)
• Compliance certifications (ROHS3, REACH Unaffected, EAR99)

All identified substitute parts maintain identical electrical and mechanical specifications, ensuring direct pin-for-pin and functional compatibility without circuit modification.

Parameter Comparison

Engineering Selection Recommendations

All three parts—93AA46AX-I/SN, 93AA46A-I/SN, and 93AA46AE48-I/SN—are fully equivalent and interchangeable for applications requiring 1Kbit Microwire EEPROM functionality in 8-SOIC packaging.

The 93AA46A-I/SN carries verified programmability status through DiGi-Electronics, indicating validated production testing protocols. The 93AA46AX-I/SN and 93AA46AE48-I/SN maintain active product status with unverified programmability designation.

All parts maintain identical compliance certifications: ROHS3 compliance, REACH Unaffected status, and EAR99 export classification. Selection between these parts should be based on availability, inventory levels, and specific supply chain requirements rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Are these parts pin-for-pin compatible? A: Yes. All three parts use identical 8-SOIC packaging with 0.154" width and 3.90mm dimensions, ensuring direct pin-for-pin compatibility without PCB modification.

Q: Can I substitute 93AA46A-I/SN for 93AA46AX-I/SN in production? A: Yes. Both parts share identical electrical specifications, memory organization, interface protocol, and operating parameters. The substitution is functionally transparent to circuit operation.

Q: What is the difference between verified and unverified programmability status? A: Verified programmability indicates that DiGi-Electronics has validated the part's programming characteristics through testing. Unverified status does not indicate a deficiency; it reflects the extent of third-party validation documentation available. All parts meet Microchip Technology manufacturing specifications.

Q: Do all parts support the same voltage and temperature ranges? A: Yes. All three parts operate across 1.8V to 5.5V supply voltage and -40°C to 85°C temperature range, ensuring compatibility across identical application environments.

Q: Are there any package or mounting differences? A: No. All parts are surface mount devices in 8-SOIC packaging with identical mechanical specifications and MSL rating of 1 (Unlimited).