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M95256-W Datasheet 256-Kbit serial SPI bus EEPROM

Manufacturer: STMicroelectronics

General Description

1 Description The M95256 devices are electrically erasable programmable memories (EEPROMs) organized as 32768 x 8 bits, accessed through the SPI bus.

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).

Overview

M95256-W M95256-R M95256-DF Datasheet 256-Kbit serial SPI bus EEPROM with high-speed clock SO8N (150 mil width) TSSOP8 (169 mil width) UFDFPN8 (DFN8) (2 x 3 mm) WLSCP8 (1.289 x 1.

Key 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.