What risks should I check before replacing M95256-WMN6TP?

The main risks are interface type, memory size, and clock speed. Ensure any alternative uses an SPI interface and that its memory and clock specs meet your design requirements.

M95256-WMN6TP Alternatives, Datasheet & Cross Reference | STMicroelectronics

Q: Is there a pin-compatible replacement for M95256-WMN6TP?

Parts from the same ST M95xxx series, like M95640-WMN6TP and M95512-WMN6TP, share the same SO8 package and are likely pin-compatible. However, you must verify their different memory sizes and clock speeds.

M95256-WMN6TP is a 256-Kbit serial SPI EEPROM from STMicroelectronics in an SO8 package. When searching for replacements, key parameters to match are the SPI interface, 20 MHz clock speed, and supply range.

AI replacement insight

Electrical riskmedium

Candidates have different memory sizes or clock speeds.

Package risklow

Several candidates share the same SO8 package and are likely pin-compatible.

Firmware riskmedium

Changes in memory size may require firmware adjustments for addressing.

Can it be replaced directly?

No direct drop-in replacement was found. Alternatives require careful review of memory size and clock speed.

Best replacement path

Evaluate same-family parts like M95512-WMN6TP (more memory, slower) or M95640-WMN6TP (less memory, same speed).

Main risk

The primary risk is functional mismatch, either due to insufficient memory capacity or a lower maximum clock speed.

Recommended alternatives

A potential alternative in the same package and family, but with a smaller 64Kbit memory capacity.

View details

Alternative comparison matrix

Feature / factor	M95256-WMN6TP	M95640-WMN6TP	M95512-WMN6TP	Compatibility / risk
Memory	256 Kbit	64 Kbit	512 Kbit	64 Kbit / 512 Kbit — Candidate has 1/4 the memory capacity.; M95512-WMN6TP: Candidate has double the memory capacity.
Interface	SPI	SPI	SPI	SPI — matched; M95512-WMN6TP: matched
Package	SO8	SO8	SO8	SO8 — Likely pin-compatible within the same family.; M95512-WMN6TP: Likely pin-compatible within the same family.
Clock	20 MHz	20 MHz	10 MHz	20 MHz / 10 MHz — matched; M95512-WMN6TP: Candidate max clock speed is half of target's.
Voltage	2.5V-5.5V	2.5V-5.5V	2.5V-5.5V	2.5V-5.5V — matched; M95512-WMN6TP: matched

Application & sourcing insights

Questions & answers

There is no single 'best' alternative. M95512-WMN6TP offers more memory but has a lower clock speed, while M95640-WMN6TP has less memory. The choice depends on your application's specific needs.