AT25160-10PC EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The AT25160-10PC is a 16Kbit Serial Peripheral Interface (SPI) EEPROM memory integrated circuit manufactured by Microchip Technology. This device operates at 3 MHz clock frequency with a supply voltage range of 4.5V to 5.5V and is housed in an 8-DIP through-hole package. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

AT25160-10PC

Microchip TechnologyIn Stock: 4612AT25160-10PC Datasheet

Current PartRFQ

25AA160/P

Microchip TechnologyIn Stock: 106825AA160/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT25160-10PC is determined by the following critical parameters:

• Memory Capacity & Organization: Substitute parts must provide 16Kbit capacity in 2K x 8 organization to maintain data storage equivalence
• Memory Interface Protocol: SPI interface is mandatory for direct pin and protocol compatibility
• Package & Mounting: 8-DIP through-hole package with 0.300" (7.62mm) spacing ensures mechanical and electrical socket compatibility
• Supply Voltage Compatibility: The substitute must operate within or encompass the 4.5V ~ 5.5V supply range of the original part
• Write Cycle Time: 5ms write cycle time establishes the performance baseline for substitution
• Operating Temperature Range: 0°C ~ 70°C defines the thermal operating envelope

The 25AA160/P meets all substitution criteria, maintaining identical memory capacity, organization, interface protocol, package configuration, and write cycle time while offering enhanced voltage flexibility and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 25AA160/P is a direct functional substitute for the AT25160-10PC based on equivalent memory capacity, organization, interface protocol, package configuration, and write cycle time specifications.

Product Status Advantage: The 25AA160/P maintains active product status with verified programmability, ensuring long-term availability and manufacturing support compared to the obsolete AT25160-10PC.

Compliance Improvement: The 25AA160/P achieves ROHS3 compliance, addressing regulatory requirements that may apply to new designs or system updates. The AT25160-10PC is RoHS non-compliant.

Voltage Range Consideration: The 25AA160/P operates across an extended supply voltage range of 1.8V to 5.5V, providing broader system integration flexibility while maintaining full compatibility with the original 4.5V to 5.5V operating window.

Clock Frequency Difference: The 25AA160/P operates at 1 MHz compared to the 3 MHz specification of the AT25160-10PC. This represents a reduced clock frequency that does not impact substitution validity, as the SPI interface remains compatible and write cycle time remains equivalent at 5ms.

Frequently Asked Questions (FAQ)

Q: Can the 25AA160/P directly replace the AT25160-10PC in existing circuit designs?

A: Yes. Both devices share identical memory capacity (16Kbit), organization (2K x 8), SPI interface protocol, 8-DIP package configuration, and write cycle time (5ms). Pin-to-pin compatibility is maintained for direct socket substitution.

Q: What is the significance of the 1 MHz versus 3 MHz clock frequency difference?

A: The clock frequency specification defines the maximum SPI communication speed. The 25AA160/P operates at 1 MHz maximum, while the AT25160-10PC operates at 3 MHz maximum. Both devices maintain the same 5ms write cycle time. System designs operating at or below 1 MHz SPI clock rates experience no functional impact. Designs requiring 3 MHz SPI operation must verify that 1 MHz operation meets system timing requirements.

Q: Does the extended voltage range of the 25AA160/P (1.8V ~ 5.5V) affect compatibility?

A: No. The extended voltage range of the 25AA160/P encompasses the original 4.5V to 5.5V operating window of the AT25160-10PC. Systems designed for 4.5V to 5.5V operation remain fully compatible. The broader voltage range provides additional flexibility for future system designs.

Q: What is the impact of ROHS3 compliance on substitution?

A: ROHS3 compliance indicates the 25AA160/P meets current environmental and regulatory standards for electronic components. The AT25160-10PC is RoHS non-compliant. For new designs or systems subject to RoHS regulations, the 25AA160/P is the appropriate selection.

Q: Are there any package or mounting differences between these parts?

A: No. Both the AT25160-10PC and 25AA160/P are housed in 8-DIP packages with 0.300" (7.62mm) spacing and through-hole mounting configuration. Physical and electrical socket compatibility is maintained.

Q: Why is the AT25160-10PC classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and support for this part number. The 25AA160/P, with active product status, ensures continued availability and manufacturing support for new procurements and system maintenance.