AT25160-10PI-2.7 Equivalent & Substitute Parts

Part Overview

The AT25160-10PI-2.7 is a 16Kbit EEPROM memory IC with SPI interface operating at 3 MHz, manufactured by Microchip Technology in 8-DIP packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device provides non-volatile memory storage suitable for embedded systems requiring serial peripheral interface communication.

Substiute Parts

AT25160-10PI-2.7

Microchip TechnologyIn Stock: 1094AT25160-10PI-2.7 Datasheet

Current PartRFQ

25AA160A-I/P

Microchip TechnologyIn Stock: 114425AA160A-I/P Datasheet

DirectRFQ

25AA160B-I/P

Microchip TechnologyIn Stock: 99125AA160B-I/P Datasheet

MFR RecommendedRFQ

25AA160D-E/P

Microchip TechnologyIn Stock: 117825AA160D-E/P Datasheet

MFR RecommendedRFQ

25C160-I/P

Microchip TechnologyIn Stock: 181425C160-I/P Datasheet

MFR RecommendedRFQ

25C160/P

Microchip TechnologyIn Stock: 216425C160/P Datasheet

MFR RecommendedRFQ

25LC160A-I/P

Microchip TechnologyIn Stock: 272625LC160A-I/P Datasheet

MFR RecommendedRFQ

25LC160B-I/P

Microchip TechnologyIn Stock: 150625LC160B-I/P Datasheet

MFR RecommendedRFQ

25LC160C-E/P

Microchip TechnologyIn Stock: 110725LC160C-E/P Datasheet

MFR RecommendedRFQ

25LC160C-I/P

Microchip TechnologyIn Stock: 163525LC160C-I/P Datasheet

MFR RecommendedRFQ

25LC160D-E/P

Microchip TechnologyIn Stock: 91125LC160D-E/P Datasheet

MFR RecommendedRFQ

25LC160D-I/P

Microchip TechnologyIn Stock: 616525LC160D-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AT25160-10PI-2.7 is determined by the following critical parameters: memory size (16Kbit), memory organization (2K x 8), SPI interface, package type (8-DIP), and write cycle time (5ms). The clock frequency and voltage supply range define compatibility boundaries. Parts are grouped into two categories based on clock frequency capability:

Category 1: 3 MHz Operation (Direct Frequency Match) Parts operating at 3 MHz maintain identical timing specifications to the original part. These include 25C160/P, 25C160-I/P, and related 25LC160 variants at 3 MHz operation.

Category 2: 10 MHz Operation (Enhanced Frequency) Parts operating at 10 MHz provide higher clock frequency capability while maintaining all other core parameters. These include 25AA160A-I/P, 25AA160B-I/P, 25AA160D-E/P, 25LC160A-I/P, 25LC160B-I/P, 25LC160C-E/P, 25LC160C-I/P, and 25LC160D-E/P.

Voltage supply range variations (1.8V, 2.5V, 2.7V, or 4.5V minimum) and operating temperature ranges (-40°C to 85°C or -40°C to 125°C) are secondary selection criteria based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (3 MHz Operation): 25C160-I/P is the primary active substitute, offering identical 3 MHz clock frequency with ROHS3 compliance. This part maintains the same timing characteristics as the obsolete AT25160-10PI-2.7. The voltage supply range is restricted to 4.5V ~ 5.5V, requiring verification that application power supplies meet this requirement.

For Enhanced Performance (10 MHz Operation): When system design permits higher clock frequency operation, 25LC160A-I/P, 25LC160C-I/P, or 25LC160D-E/P provide 10 MHz capability with ROHS3 compliance and extended voltage supply ranges (2.5V ~ 5.5V). The 25LC160D-E/P variant extends operating temperature to -40°C ~ 125°C for high-temperature applications.

For Low Voltage Applications: 25AA160A-I/P and 25AA160B-I/P support the lowest minimum supply voltage (1.8V ~ 5.5V) among active substitutes, suitable for battery-powered or low-voltage embedded systems.

Compliance Consideration: All recommended active substitutes are ROHS3 compliant, addressing regulatory requirements that the original obsolete part does not meet. 25LC160B-I/P is the only active substitute retaining RoHS non-compliant status.

Frequently Asked Questions (FAQ)

Q: Can I use a 10 MHz part as a direct replacement for the 3 MHz AT25160-10PI-2.7? A: Yes. The 10 MHz parts (25AA160, 25LC160 series) are backward compatible with 3 MHz operation. The higher clock frequency capability does not prevent operation at lower speeds. However, verify that your application firmware and timing requirements are compatible with the substitute part's voltage supply range and temperature rating.

Q: What is the difference between 25C160-I/P and 25C160/P? A: Both operate at 3 MHz with identical memory specifications. The primary difference is operating temperature range: 25C160-I/P supports -40°C ~ 85°C, while 25C160/P supports 0°C ~ 70°C. Select based on your application's temperature requirements.

Q: Why do some substitutes have different voltage supply minimums (1.8V, 2.5V, 4.5V)? A: Different part variants within the 25AA160, 25C160, and 25LC160 families are optimized for different voltage domains. The 25AA160 series (1.8V minimum) targets low-power applications, 25LC160 series (2.5V minimum) provides mid-range flexibility, and 25C160 series (4.5V minimum) is designed for standard 5V systems. Select based on your power supply specifications.

Q: Is the 8-DIP package identical across all substitutes? A: Yes. All listed substitutes use the same 8-DIP (0.300", 7.62mm) package with identical pinout and mechanical dimensions, ensuring direct PCB compatibility without layout modifications.

Q: What does ROHS3 compliance mean for my design? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. Most active substitutes are ROHS3 compliant, supporting modern regulatory and environmental standards. The original AT25160-10PI-2.7 is RoHS non-compliant.

Q: Can I substitute a part with extended temperature range (-40°C ~ 125°C) in place of the standard range (-40°C ~ 85°C)? A: Yes. A part rated for extended temperature range is suitable for applications requiring only standard range operation. However, this may increase component cost. Select extended temperature variants only when your application requires operation above 85°C.

Q: What is the significance of the -I/P and -E/P suffixes? A: These suffixes indicate temperature grade and packaging configuration. -I/P denotes industrial temperature range (-40°C ~ 85°C) in tube packaging, while -E/P denotes extended temperature range (-40°C ~ 125°C) in tube packaging. Both are through-hole compatible with identical pinouts.