AT25160-10PI-1.8 Equivalent & Substitute Parts

Part Overview

The AT25160-10PI-1.8 is a 16Kbit EEPROM memory IC with SPI interface manufactured by Microchip Technology. This device operates at 3 MHz clock frequency with 1.8V to 3.6V supply voltage range and is housed in an 8-DIP package. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible memory solutions.

Substiute Parts

AT25160-10PI-1.8

Microchip TechnologyIn Stock: 1009AT25160-10PI-1.8 Datasheet

Current PartRFQ

25AA160A-I/P

Microchip TechnologyIn Stock: 114425AA160A-I/P Datasheet

DirectRFQ

25AA160-I/P

Microchip TechnologyIn Stock: 89925AA160-I/P Datasheet

MFR RecommendedRFQ

25AA160/P

Microchip TechnologyIn Stock: 106825AA160/P Datasheet

MFR RecommendedRFQ

25AA160B-I/P

Microchip TechnologyIn Stock: 99125AA160B-I/P Datasheet

MFR RecommendedRFQ

25AA160D-E/P

Microchip TechnologyIn Stock: 117825AA160D-E/P Datasheet

MFR RecommendedRFQ

25LC160-I/P

Microchip TechnologyIn Stock: 201125LC160-I/P Datasheet

MFR RecommendedRFQ

25LC160/P

Microchip TechnologyIn Stock: 200225LC160/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AT25160-10PI-1.8 is determined by the following critical parameters:

Memory Capacity & Organization: All substitute parts must maintain 16Kbit capacity with 2K x 8 organization to ensure data storage compatibility.

Interface & Protocol: SPI interface is mandatory for all substitutes to maintain communication protocol compatibility.

Package & Mounting: 8-DIP through-hole package (0.300", 7.62mm) is required for mechanical and electrical compatibility with existing PCB layouts.

Voltage Compatibility: The original part operates at 1.8V ~ 3.6V. Substitute parts with wider voltage ranges (1.8V ~ 5.5V or 2.5V ~ 5.5V) are acceptable as they encompass the original operating range.

Clock Frequency: The original 3 MHz specification can be substituted with parts rated at equal or higher clock frequencies (1 MHz, 2 MHz, 10 MHz) without functional degradation.

Temperature Range: Operating temperature ranges of -40°C ~ 85°C or wider are acceptable substitutes.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility)

25AA160A-I/P and 25AA160B-I/P are the preferred substitutes. Both are active products with ROHS3 compliance, operate at 10 MHz (exceeding the original 3 MHz requirement), support the full 1.8V ~ 5.5V voltage range encompassing the original 1.8V ~ 3.6V specification, and maintain the -40°C ~ 85°C temperature range. These parts are verified as programmable and have higher inventory availability.

Secondary Substitutes (Extended Temperature Range)

25AA160D-E/P extends the operating temperature to -40°C ~ 125°C, suitable for applications requiring enhanced thermal performance. This part maintains 10 MHz operation and full voltage compatibility but is not verified as programmable.

Alternative Substitutes (Lower Clock Frequency)

25AA160-I/P operates at 1 MHz with full voltage range support and active product status. This part is suitable for applications where lower clock frequency is acceptable. The 25AA160/P variant is identical but limited to 0°C ~ 70°C operating temperature.

Voltage-Constrained Substitutes

25LC160-I/P and 25LC160/P operate at 2 MHz with a minimum supply voltage of 2.5V. These parts are suitable only for systems where the supply voltage remains above 2.5V, as they do not support the original 1.8V lower limit.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher clock frequency than the original AT25160-10PI-1.8?

A: Yes. The original part operates at 3 MHz. Substitute parts rated at 10 MHz, 2 MHz, or 1 MHz are all functionally compatible. Higher clock frequency ratings provide backward compatibility with lower-speed applications.

Q: What is the key difference between 25AA160A-I/P and 25AA160B-I/P?

A: Both parts are functionally identical in terms of memory capacity, clock frequency (10 MHz), voltage range (1.8V ~ 5.5V), and temperature range (-40°C ~ 85°C). Both are active products with ROHS3 compliance and verified programmability. Selection between them depends on availability and supplier preference.

Q: Why do some substitute parts have a 2.5V minimum voltage instead of 1.8V?

A: The 25LC160 series (25LC160-I/P and 25LC160/P) are specified with a 2.5V ~ 5.5V voltage range. These parts are suitable only for systems where the minimum supply voltage is 2.5V or higher. If your application requires 1.8V operation, use 25AA160 series parts instead.

Q: Is the AT25160-10PI-1.8 still available, or must I use a substitute?

A: The AT25160-10PI-1.8 is obsolete. Active substitute parts from the 25AA160 and 25LC160 series are recommended for new designs and ongoing system support.

Q: What is the difference between 25AA160/P and 25AA160-I/P?

A: Both parts operate at 1 MHz with 1.8V ~ 5.5V voltage support. The primary difference is operating temperature: 25AA160/P is rated 0°C ~ 70°C, while 25AA160-I/P is rated -40°C ~ 85°C. Select based on your application's temperature requirements.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed (25AA160 and 25LC160 series) are ROHS3 compliant. The original AT25160-10PI-1.8 is RoHS non-compliant.

Q: Can I substitute 25LC160-I/P in a circuit designed for AT25160-10PI-1.8?

A: Yes, provided your circuit's minimum supply voltage is 2.5V or higher. The 25LC160-I/P operates at 2 MHz (compatible with the original 3 MHz requirement) and maintains 8-DIP package compatibility. If your circuit operates below 2.5V, use 25AA160 series parts instead.