Equivalent & Substitute Parts for 93AA86/P

Part Overview

The 93AA86/P is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring Microwire serial interface protocol. This non-volatile memory device operates across a 1.8V to 6V supply range and is housed in an 8-PDIP through-hole package. The part maintains Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent memory capacity, compatible package form factor, and overlapping electrical specifications enable direct functional replacement in circuit applications.

Substiute Parts

93AA86/P

Microchip TechnologyIn Stock: 92993AA86/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 93AA86/P is determined by the following criteria:

Memory Capacity: Substitute parts must provide 16Kbit storage with 2K x 8 or 1K x 16 organization to maintain functional equivalence.

Package Compatibility: Both main and substitute parts must use 8-DIP (0.300", 7.62mm) through-hole packaging to ensure PCB footprint compatibility without layout modifications.

Supply Voltage Range: Substitute parts must operate within or encompass the 1.8V to 6V supply specification of the main part. Overlapping voltage ranges permit direct substitution.

Memory Interface: Serial interface protocols (Microwire, 3-Wire Serial) are functionally compatible at the system level when properly configured in firmware or hardware control logic.

Regulatory Compliance: Both parts must maintain ROHS3 compliance and equivalent environmental certifications.

The AT93C86A-10PU-1.8 meets these substitution criteria through equivalent 16Kbit capacity, identical 8-DIP package, overlapping 1.8V supply specification, and matching ROHS3 compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 93AA86/P and AT93C86A-10PU-1.8 maintain Active product status with ROHS3 compliance and equivalent moisture sensitivity ratings. Selection between these parts depends on application-specific requirements:

The 93AA86/P operates at 3 MHz clock frequency with 5ms write cycle time, suitable for applications requiring faster serial communication and reduced write latency.

The AT93C86A-10PU-1.8 operates at 2 MHz clock frequency with 10ms write cycle time and extends the operating temperature range to -40°C ~ 85°C, accommodating industrial and extended-temperature environments.

Supply voltage specification differs: the 93AA86/P supports 1.8V to 6V operation, while the AT93C86A-10PU-1.8 operates from 1.8V to 5.5V. Applications requiring operation above 5.5V must use the 93AA86/P.

Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for commercial and industrial deployment.

Frequently Asked Questions (FAQ)

Q: Can the AT93C86A-10PU-1.8 directly replace the 93AA86/P without PCB modifications?

A: Yes. Both parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging, enabling direct pin-compatible substitution without PCB layout changes. However, the serial interface protocol differs (Microwire versus 3-Wire Serial), requiring firmware or hardware control logic adaptation.

Q: What is the primary difference between Microwire and 3-Wire Serial interfaces?

A: Microwire and 3-Wire Serial are distinct serial communication protocols. The 93AA86/P implements Microwire protocol, while the AT93C86A-10PU-1.8 implements 3-Wire Serial protocol. Both are synchronous serial interfaces but differ in signal timing and control sequences. System integration requires protocol-specific driver implementation.

Q: Are there voltage supply constraints when substituting these parts?

A: The 93AA86/P operates from 1.8V to 6V, while the AT93C86A-10PU-1.8 operates from 1.8V to 5.5V. Applications requiring supply voltages between 5.5V and 6V must use the 93AA86/P. Both parts support 1.8V to 5.5V operation.

Q: How do clock frequency and write cycle time affect substitution decisions?

A: The 93AA86/P operates at 3 MHz with 5ms write cycle time. The AT93C86A-10PU-1.8 operates at 2 MHz with 10ms write cycle time. Applications with strict timing requirements or high-frequency serial communication may require the 93AA86/P. Applications with relaxed timing constraints can accommodate the AT93C86A-10PU-1.8.

Q: What is the temperature operating range difference?

A: The 93AA86/P operates from 0°C to 70°C. The AT93C86A-10PU-1.8 operates from -40°C to 85°C. Industrial and extended-temperature applications benefit from the wider range of the AT93C86A-10PU-1.8. Standard commercial applications within 0°C to 70°C can use either part.

Q: Are both parts RoHS compliant?

A: Yes. Both the 93AA86/P and AT93C86A-10PU-1.8 are ROHS3 compliant with MSL rating 1 (Unlimited), meeting equivalent environmental and regulatory requirements.