STMicroelectronics M95256-W
The M95256-W can operate with a supply voltage from 2.5 V to 5.5 V, the M95256-R can operate with a supply voltage from 1.8 V to 5.5 V and the M95256-DF can operate with a supply voltage from 1.7 V to 5.5 V, over an ambient temperature range of -40 °C / +85 °C. The M95256-DF, -DR or -DW (hereinafter referred to as M95256-Dx) offer an additional page, named the Identification page (64 bytes). The Identification page can be used to store sensitive application parameters that can be (later) permanently locked in read-only mode.FEATURES
● Compatible with the serial peripheral interface (SPI) bus● Memory array – 256-Kbit (32 Kbytes) of EEPROM – Page size: 64 bytes – Additional write lockable page (Identification page)
● Write time – Byte Write within 5 ms – Page Write within 5 ms
● Write protect – quarter array – half array – whole memory array
● High-speed clock: 20 MHz
● Single supply voltage: – 2.5 V to 5.5 V for M95256-W – 1.8 V to 5.5 V for M95256-R – 1.7 V to 5.5 V for M95256-DF
● Operating temperature range: from -40 °C up to +85 °C
● Enhanced ESD protection
● More than 4 million Write cycles
● More than 200-year data retention
● Packages – SO8N (ECOPACK2) – TSSOP8 (ECOPACK2) – UFDFPN8 (ECOPACK2) – WLCSP8 (ECOPACK2) DS4712 - Rev 22 - September 2021 For further information contact your local STMicroelectronics sales office. M95256-W M95256-R M95256-DF
DESCRIPTION
1DESCRIPTION
The M95256 devices are electrically erasable programmable memories (EEPROMs) organized as 32768 x 8 bits, accessed through the SPI bus.