AT93C86-10PI-2.7 Equivalent & Substitute Parts

Part Overview

The AT93C86-10PI-2.7 is a 16Kbit EEPROM memory IC featuring 3-Wire Serial interface with 2 MHz clock frequency, manufactured by Microchip Technology. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design requirements and production continuity. The part is packaged in 8-DIP through-hole configuration and operates across -40°C to 85°C temperature range with 2.7V to 5.5V supply voltage compatibility.

Substiute Parts

AT93C86-10PI-2.7

Microchip TechnologyIn Stock: 3456AT93C86-10PI-2.7 Datasheet

Current PartRFQ

93AA86C-I/P

Microchip TechnologyIn Stock: 116593AA86C-I/P Datasheet

DirectRFQ

AT93C86A-10PU-2.7

Microchip TechnologyIn Stock: 6395AT93C86A-10PU-2.7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT93C86-10PI-2.7 is determined by the following critical parameters: memory size (16Kbit), memory organization (2K x 8 or 1K x 16), package type (8-DIP), mounting method (through hole), and operating temperature range (-40°C to 85°C).

The memory interface type (3-Wire Serial vs. Microwire) represents a functional distinction that affects circuit compatibility. Parts maintaining identical interface protocols and electrical specifications are classified as direct substitutes. Parts with different interface protocols require circuit-level evaluation but may serve equivalent functional roles within the same memory category.

Supply voltage range compatibility is assessed on overlap basis: parts supporting the required 2.7V minimum and 5.5V maximum are acceptable. Clock frequency and write cycle time variations are acceptable provided the substitute meets or exceeds performance requirements of the original design.

Parameter Comparison

Engineering Selection Recommendations

AT93C86A-10PU-2.7 serves as the primary direct substitute for AT93C86-10PI-2.7. Both parts maintain identical memory specifications, 3-Wire Serial interface protocol, clock frequency, write cycle time, and voltage supply range. The AT93C86A-10PU-2.7 is currently active in production status and carries ROHS3 compliance certification, addressing the obsolescence of the original part while maintaining full electrical and mechanical compatibility.

93AA86C-I/P represents an alternative from the same manufacturer with equivalent memory capacity and organization. This part operates at 3 MHz clock frequency with 5ms write cycle time, providing improved performance characteristics. However, the Microwire interface protocol differs from the 3-Wire Serial interface of the original part, requiring circuit-level interface verification before implementation. The 93AA86C-I/P supports extended supply voltage range (1.8V minimum) and carries ROHS3 compliance.

Both substitute parts are available in active production status with ROHS3 compliance and REACH unaffected certification, providing long-term supply assurance and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can AT93C86A-10PU-2.7 be used as a direct replacement for AT93C86-10PI-2.7?

A: Yes. Both parts share identical memory capacity (16Kbit), organization (2K x 8, 1K x 16), interface protocol (3-Wire Serial), clock frequency (2 MHz), write cycle time (10ms), voltage range (2.7V ~ 5.5V), temperature range (-40°C ~ 85°C), and 8-DIP package configuration. No circuit modifications are required.

Q: What is the primary difference between 93AA86C-I/P and AT93C86-10PI-2.7?

A: The 93AA86C-I/P uses Microwire interface protocol instead of 3-Wire Serial. While both are serial EEPROM interfaces from Microchip Technology, they employ different communication protocols. Circuit interface compatibility must be verified before substitution. The 93AA86C-I/P also provides faster operation at 3 MHz with 5ms write cycle time.

Q: Are all three parts pin-compatible?

A: All three parts use 8-DIP package with identical physical dimensions (0.300", 7.62mm). Physical pin compatibility is confirmed. However, functional compatibility depends on interface protocol support in the host circuit.

Q: What compliance certifications apply to the substitute parts?

A: Both AT93C86A-10PU-2.7 and 93AA86C-I/P carry ROHS3 compliance and REACH unaffected certification. The original AT93C86-10PI-2.7 is RoHS non-compliant, making the substitutes suitable for applications requiring regulatory compliance.

Q: Can 93AA86C-I/P operate at 1.8V supply voltage?

A: Yes. The 93AA86C-I/P supports 1.8V minimum supply voltage, compared to 2.7V minimum for AT93C86-10PI-2.7 and AT93C86A-10PU-2.7. This extended range provides additional design flexibility for low-voltage applications.