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M95256-R, 256 Kbit SPI bus EEPROM with high-speed clock

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). The Identification page can be

used to store sensitive application parameters that can be (later) permanently locked in read-only mode.

The SPI bus signals are C, D and Q, as shown in Figure 1 and Table 1. The device is selected when Chip select (S) is driven low. Communications with the device can be

interrupted when the HOLD is driven low.

M95256-RMN6TP    Order Here

All 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)

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