Description
The M95256, M95256-W, M95256-R and M95256-DR are electrically erasable programmable memory (EEPROM) devices. They are accessed by a high speed SPI compatible bus. Their memory array is organized as 32768 × 8 bits. The M95256-DR also offers an additional page, named the Identification Page (64 bytes) which can be written and (later) permanently locked in Read-only mode. This Identification Page offers flexibility in the application board production line, as the Identification Page can be used to store unique identification parameters and/or parameters specific to the production line.

Features
■ Compatible with the Serial Peripheral Interface (SPI) bus
■ Memory array
    – 256 Kb (32 Kbytes) of EEPROM
    – Page size: 64 bytes
■ Additional Write lockable Page (Identification page)
■ Write
    – Byte Write within 5 ms
    – Page Write within 5 ms
■ Write Protect: quarter, half or whole memory array
■ High-speed clock frequency (20 MHz)
■ Single supply voltage: 1.8 V to 5.5 V
■ More than 1 Million Write cycles
■ More than 40-year data retention
■ Enhanced ESD Protection
■ Packages
    –ECOPACK2® (RoHS compliant and Halogen-free)