Microchip 25C160-I/P EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The Microchip 25C160-I/P is a 16Kbit Serial Peripheral Interface (SPI) EEPROM memory integrated circuit in 8-DIP packaging. This non-volatile memory device operates at 3 MHz clock frequency with a 5ms write cycle time and is designed for applications requiring persistent data storage with SPI communication protocol. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level rating. Substitute parts are necessary when addressing supply constraints, performance requirements, or design optimization needs within compatible electrical and mechanical parameters.

Substiute Parts

25C160-I/P

Microchip TechnologyIn Stock: 181425C160-I/P Datasheet

Current PartRFQ

25LC160-I/P

Microchip TechnologyIn Stock: 201125LC160-I/P Datasheet

MFR RecommendedRFQ

25LC160C-I/P

Microchip TechnologyIn Stock: 163525LC160C-I/P Datasheet

MFR RecommendedRFQ

25LC160D-I/P

Microchip TechnologyIn Stock: 616525LC160D-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 25C160-I/P is determined by the following critical parameters:

Fixed Requirements (Non-Negotiable):

• Memory Size: 16Kbit
• Memory Organization: 2K x 8
• Memory Interface: SPI
• Package Type: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Write Cycle Time: 5ms
• Operating Temperature Range: -40°C ~ 85°C

Variable Parameters (Allowable Differences):

• Clock Frequency: Substitute parts may operate at different maximum frequencies (2 MHz, 10 MHz) provided the application does not require the original 3 MHz specification
• Voltage Supply Range: Substitute parts with extended voltage ranges (2.5V ~ 5.5V) are compatible with applications designed for the original 4.5V ~ 5.5V range

The three qualified substitute parts (25LC160-I/P, 25LC160C-I/P, 25LC160D-I/P) maintain identical memory capacity, organization, interface protocol, package configuration, and thermal specifications while offering variations in maximum clock frequency and supply voltage tolerance.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts maintain active production status and ROHS3 compliance, ensuring regulatory alignment with the original 25C160-I/P specification.

25LC160-I/P Selection: This part operates at 2 MHz maximum clock frequency with extended voltage supply range (2.5V ~ 5.5V). Selection is appropriate for applications where the original 3 MHz specification is not required and lower supply voltage operation is beneficial.

25LC160C-I/P Selection: This part operates at 10 MHz maximum clock frequency with extended voltage supply range (2.5V ~ 5.5V). Selection is appropriate for applications requiring higher clock frequency performance than the original 3 MHz specification.

25LC160D-I/P Selection: This part operates at 10 MHz maximum clock frequency with extended voltage supply range (2.5V ~ 5.5V). Selection is appropriate for applications requiring higher clock frequency performance than the original 3 MHz specification. This variant offers the highest available inventory level (6074 Pcs).

All substitute parts share identical memory capacity, organization, SPI interface protocol, 8-DIP package configuration, write cycle time, and operating temperature range with the main part.

Frequently Asked Questions (FAQ)

Q: Can 25LC160-I/P replace 25C160-I/P in all applications?

A: The 25LC160-I/P operates at 2 MHz maximum frequency compared to the original 3 MHz specification. Substitution is valid only for applications where the system clock frequency does not exceed 2 MHz. The extended voltage supply range (2.5V ~ 5.5V) is compatible with the original 4.5V ~ 5.5V requirement.

Q: What is the difference between 25LC160C-I/P and 25LC160D-I/P?

A: Both parts operate at identical electrical specifications: 10 MHz clock frequency, 2.5V ~ 5.5V supply voltage, 5ms write cycle time, and 8-DIP package configuration. The primary distinction is inventory availability, with 25LC160D-I/P offering higher stock levels (6074 Pcs versus 1553 Pcs).

Q: Are all substitute parts pin-compatible with the original 25C160-I/P?

A: Yes. All substitute parts use the 8-DIP (0.300", 7.62mm) package with identical through-hole mounting configuration, ensuring direct PCB compatibility without layout modifications.

Q: Can I use a 10 MHz part (25LC160C-I/P or 25LC160D-I/P) as a direct replacement for the 3 MHz 25C160-I/P?

A: Yes. The 10 MHz parts are backward compatible with applications designed for 3 MHz operation. The higher maximum clock frequency does not create incompatibility; the system will operate at the lower frequency specified in the original design.

Q: What is the significance of the extended voltage range in substitute parts?

A: The substitute parts operate across 2.5V ~ 5.5V compared to the original 4.5V ~ 5.5V range. This extended lower voltage limit provides design flexibility for low-power applications while maintaining full compatibility with the original 4.5V ~ 5.5V specification.

Q: Are all parts RoHS3 compliant?

A: Yes. The main part 25C160-I/P and all three substitute parts (25LC160-I/P, 25LC160C-I/P, 25LC160D-I/P) are ROHS3 compliant with unlimited moisture sensitivity level rating.