93LC76AT-I/SN Equivalent & Substitute Parts

Part Overview

The 93LC76AT-I/SN is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol with 3 MHz clock frequency. This non-volatile memory device is designed for applications requiring persistent data storage in embedded systems and industrial equipment. The part is currently in active production status with verified programmability through DiGi-Electronics. Substitute parts are identified when equivalent electrical specifications, memory organization, interface protocol, and package form factor are maintained across the product line.

Substiute Parts

93LC76AT-I/SN

Microchip TechnologyIn Stock: 105493LC76AT-I/SN Datasheet

Current PartRFQ

93LC76A-I/SN

Microchip TechnologyIn Stock: 81893LC76A-I/SN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 93LC76A-I/SN qualifies as a direct substitute for the 93LC76AT-I/SN based on the following substitution criteria:

Electrical Equivalence: Both parts maintain identical memory capacity (8Kbit), organization (1K x 8), interface protocol (Microwire), clock frequency (3 MHz), write cycle time (5ms), supply voltage range (2.5V ~ 5.5V), and operating temperature range (-40°C ~ 85°C).

Package Compatibility: Both devices utilize the 8-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width), ensuring mechanical and electrical compatibility on PCB layouts designed for either part number.

Compliance Alignment: Both parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, meeting identical regulatory and environmental requirements.

Manufacturing Status: Both parts are active production items from Microchip Technology with verified programmability certification through DiGi-Electronics.

The primary distinction between these parts is packaging format: the main part (93LC76AT-I/SN) is supplied in Tape & Reel format, while the substitute (93LC76A-I/SN) is supplied in Tube packaging. This difference does not affect electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

Both the 93LC76AT-I/SN and 93LC76A-I/SN are suitable for applications requiring 8Kbit Microwire EEPROM functionality. Selection between these parts should be based on procurement and assembly requirements:

93LC76AT-I/SN (Tape & Reel): Recommended for high-volume automated assembly operations where tape and reel packaging integrates with pick-and-place equipment. This format optimizes manufacturing throughput and reduces component handling.

93LC76A-I/SN (Tube): Suitable for lower-volume production, prototype development, or manual assembly processes where tube packaging provides adequate component protection and handling convenience.

Both parts maintain active production status with verified programmability certification. Compliance certifications (ROHS3, MSL Level 1, REACH unaffected) are identical, ensuring equivalent regulatory and environmental qualification across both options.

Frequently Asked Questions (FAQ)

Q: Can 93LC76A-I/SN replace 93LC76AT-I/SN in existing PCB designs?

A: Yes. Both parts are electrically and mechanically identical. The 8-SOIC package dimensions, pin configuration, and electrical specifications are equivalent. Substitution requires no PCB layout modifications.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel packaging supplies components on continuous carrier tape wound on reels, optimized for automated assembly. Tube packaging supplies components in plastic tubes, typically used for manual assembly or lower-volume applications. Electrical and mechanical performance are unaffected by packaging format.

Q: Are both parts RoHS compliant?

A: Yes. Both 93LC76AT-I/SN and 93LC76A-I/SN are ROHS3 compliant and maintain identical environmental certifications.

Q: What is the MSL rating for these parts?

A: Both parts carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity limitations during storage or handling.

Q: Can these parts operate across the full industrial temperature range?

A: Yes. Both parts are rated for -40°C to 85°C operating temperature, suitable for industrial and extended commercial applications.

Q: Are there any differences in write cycle time or clock frequency?

A: No. Both parts maintain identical 5ms write cycle time and 3 MHz clock frequency specifications.