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1Kbit Serial SPI Bus EEPROM With High Speed Clock

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Parameter NameParameter Value
Operating RangeIndustrial
Supply Voltage Min Volt1.8
Supply Voltage Max Volt5.5
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NameSO8

The M95010/M95020/M95040 devices (M950x0) are electrically erasable programmable memories (EEPROMs) organized as 128/256/512 x 8 bits respectively, accessed through the SPI bus.

The M950x0-W can operate with a supply voltage from 2.5 V to 5.5 V, the M950x0-R can operate with a supply voltage from 1.8 V to 5.5 V and the M950x0-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 M950x0-DF offers an additional page, named the identification page (16 bytes). The identification page can be used to store sensitive application parameters that can be (later) permanently locked in read-only mode.

Key features
  • Compatible with the serial peripheral interface (SPI) bus
  • Memory array
    • 1/2/4-Kbit (128/256/512 bytes) of EEPROM
    • Page size: 16 bytes
    • Additional write lockable page (Identification page) for M95040-DF order code
  • Write
    • Byte Write within 5 ms
    • Page Write within 5 ms
  • Write protect
    • quarter array
    • half array
    • whole memory array
  • Max clock frequency: 20 MHz
  • Single supply voltage:
    • 2.5 V to 5.5 V for M950x0-W
    • 1.8 V to 5.5 V for M950x0-R
    • 1.7 V to 5.5 V for M95040-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 RoHS-compliant and Halongen-free
    • SO8N (ECOPACK2)