Equivalent & Substitute Parts for 93AA86C-I/P

Part Overview

The 93AA86C-I/P is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol. 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 component is packaged in an 8-PDIP through-hole configuration and maintains active product status with full RoHS3 compliance. Substitute parts are identified when equivalent memory capacity, compatible packaging, overlapping voltage specifications, and matching temperature ratings are maintained while accommodating interface protocol variations.

Substiute Parts

93AA86C-I/P

Microchip TechnologyIn Stock: 116593AA86C-I/P Datasheet

Current PartRFQ

AT93C86A-10PU-1.8

Microchip TechnologyIn Stock: 1572AT93C86A-10PU-1.8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 93AA86C-I/P is determined by the following critical parameters:

Memory capacity equivalence is mandatory: 16Kbit capacity with 2K x 8 or 1K x 16 organization ensures functional compatibility at the system level. Package compatibility is required: 8-DIP through-hole mounting with 0.300" (7.62mm) pitch maintains mechanical interchangeability on printed circuit boards. Voltage specification overlap is essential: supply voltage range of 1.8V to 5.5V ensures operation across the same power supply conditions. Temperature rating alignment is necessary: -40°C to 85°C operating range supports identical environmental specifications. Serial interface protocols may vary between Microwire and 3-Wire Serial implementations, provided the host system firmware or hardware interface supports protocol adaptation. Write cycle time differences are acceptable when system timing requirements do not mandate the faster 5ms specification of the primary part.

Parameter Comparison

Engineering Selection Recommendations

The AT93C86A-10PU-1.8 qualifies as a functional substitute for the 93AA86C-I/P based on matching memory capacity, identical packaging geometry, overlapping voltage specifications, and equivalent temperature ratings. Both components maintain active product status and ROHS3 compliance. The primary design consideration is serial interface protocol: the main part implements Microwire protocol while the substitute uses 3-Wire Serial protocol. This difference requires interface compatibility verification at the system level. Clock frequency is reduced from 3 MHz to 2 MHz, and write cycle time increases from 5ms to 10ms in the substitute part. These timing differences are acceptable provided system firmware and hardware interface logic support the slower clock frequency and extended write cycle duration. Both parts are manufactured by Microchip Technology, ensuring consistent quality and reliability standards.

Frequently Asked Questions (FAQ)

Q: Can AT93C86A-10PU-1.8 be used as a direct pin-for-pin replacement for 93AA86C-I/P?

A: Both parts share identical 8-DIP packaging with 0.300" pitch, enabling mechanical interchangeability. However, serial interface protocol differs: Microwire versus 3-Wire Serial. Direct substitution requires host system support for 3-Wire Serial protocol. Pin assignments must be verified against device datasheets to confirm functional compatibility.

Q: What are the voltage supply differences between these parts?

A: Both parts operate across identical supply voltage range of 1.8V to 5.5V. No voltage specification adjustment is required when substituting between these components.

Q: How do clock frequency and write cycle time differences affect system operation?

A: The substitute part operates at 2 MHz clock frequency compared to 3 MHz for the main part, and requires 10ms write cycle time versus 5ms. Systems designed for the faster specifications of the main part must accommodate these reduced performance parameters. Applications with non-critical timing requirements are unaffected by these differences.

Q: Are both parts compliant with environmental and regulatory standards?

A: Both the 93AA86C-I/P and AT93C86A-10PU-1.8 maintain ROHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 1 (Unlimited). Regulatory and environmental specifications are equivalent between the two parts.

Q: What memory organization options are available?

A: Both parts support identical memory organization: 2K x 8 or 1K x 16 configuration. Memory capacity remains 16Kbit regardless of organization selection.