STMicroelectronics M95256-125 256-Kbit Serial SPI Bus EEPROM Datasheet

The M95256-125 is a STMicroelectronics automotive 256-Kbit serial SPI bus EEPROM with the following features: compatible with the Serial Peripheral Interface (SPI) bus; memory array 256 Kb (32 Kbytes) of EEPROM; page size: 64 bytes; write byte write within 5 ms; page write within 5 ms; write protection: quarter, half or whole memory array; high speed clock: 5 MHz; single supply voltage: 4.5 V to 5.5 V; operating temperature range: from -40°C up to +125°C; enhanced ESD protection; more than 1 million write cycles; more than 40 years data retention; RoHS compliant and halogen-free (ECOPACK®) SO8 (MN) 150 mil width TSSOP8 (DW) 169 mil width.


STMicroelectronics M95256-125 256-Kbit Serial SPI Bus EEPROM Datasheet - cover page
Brand
STMicroelectronics
Category
Memory
Document type
Datasheet
Language
English
Pages
38
File format
PDF
File size
290 KB
Published
09 August, 2012
Updated
30 September, 2023
Model
256KBIT
MD5 checksum
94F3FAD8AE8F7FDDDDEACE6A2D35B0E2

About this manual

The M95256-125 is a 256-Kbit (32 Kbytes) Electrically Erasable Programmable Memory (EEPROM) organized as 32768 x 8 bits, accessed through the Serial Peripheral Interface (SPI) bus. It is designed for automotive applications and complies with the AEC-Q100 Grade 1 standard. The device supports page sizes of 64 bytes and offers write speeds of within 5 ms for both byte and page writes.

What's inside

  • Description
  • Memory organization
  • Signal description
  • Connecting to the SPI bus
  • Operating features
  • Instructions
  • Power-up and delivery state
  • Maximum rating
  • DC and AC parameters
  • Package mechanical data

Specifications

Memory Size256 Kb (32 Kbytes)
Page Size64 bytes
Write Speedwithin 5 ms
Operating Temperature-40°C to +125°C
Write CyclesMore than 1 million
Data RetentionMore than 40-year
Clock Frequency5 MHz

Frequently asked questions

What is the page size of the M95256-125 EEPROM?

The page size is 64 bytes.

Is the M95256-125 compliant with automotive standards?

Yes, it complies with the Automotive standard AEC-Q100 Grade 1.

What are the available packages for this device?

The device is available in SO8 and TSSOP8 packages.

Download PDF (290 KB)

More STMicroelectronics Manuals


View all STMicroelectronics manuals →