M95128-W

NRND
Design Win

128 Kbit SPI bus EEPROM with high-speed clock

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Product overview

Description

The M95128 devices are electrically erasable programmable memories (EEPROMs) organized as 16384 x 8 bits, accessed through the SPI bus.

The M95128-W can operate with a supply voltage from 2.5 V to 5.5 V, the M95128-R can operate with a supply voltage from 1.8 V to 5.5 V and the M95128-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 M95128-DF offers 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.

  • All features

    • Compatible with the serial peripheral interface (SPI) bus
    • Memory array
      • 128 Kbit (16 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 M95128-W
      • 1.8 V to 5.5 V for M95128-R
      • 1.7 V to 5.5 V for M95128-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
      • SO8 (ECOPACK2®)
      • TSSOP8 (ECOPACK2®)
      • UFDFPN8 (ECOPACK2®)
      • WLCSP (ECOPACK2®)

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - M95128-W

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M95128-WMN6TP
NRND
SO8 Industrial Ecopack2

M95128-WMN6TP

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SO8

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NRND

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SO8

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Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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