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ST Releases Industry's First Serial Page EEPROM


This brand-new class of EEPROM is a high-density, page-erasable SPI memory that delivers flexibility and performance with ultra-low power consumption


STMicroelectronics have released the the market's first Serial Page EEPROM. This brand-new class of EEPROM is a high-density, page-erasable SPI memory that delivers unique and unprecedented flexibility and performance with ultra-low power consumption. The first product released is the 32Mbit M95P32, STMicroelectronics is then planning to release a 16Mbit and 8Mbit density version.

Click for Larger Image - STMicroelectronics New Serial Page EEPROM The innovative architecture of the serial page EEPROM, gives designers the ability to mix firmware management and flexible data storage in a single device, a combination not previously available. This higher level of memory integration reduces bill of materials (BoM) and time-to-market, increases application value, and enables smaller modules with ultra-low power operation and thus longer battery lifetime. These devices are ideal for implementing all-in-one non-volatile memory in new system designs for applications such as industrial IoT modules, wearables, healthcare, electronic shelf-edge labelling, smart meters, and 5G optical-fiber modules.

The Serial Page EEPROM combines ST's patented e-STM 40nm non-volatile memory (NVM) cell technology with a new smart page architecture, bringing together the benefits of high memory density for firmware with byte flexibility and high endurance for simplified data logging. It also features fast read, erase, and program cycles, reducing manufacturing costs and application downtimes by enabling rapid upload and download. Fast power up and quad output read allow for faster application wake up.

This new simplified memory integration enables improved cost of ownership, offering ease-of-use, simple software development, and high reliability. Serial Page EEPROM offers a non-volatile memory solution that is less expensive than alternative FRAM while offering lower power consumption, as well as enhanced functionality and greater ease of use compared with serial Flash and Dataflash products, respectively.

Features of the M95P32 32 Mbit Serial SPI Page EEPROM include:

  • SPI interface
    • Supports serial peripheral interface (SPI) and dual/quad outputs
    • Wide Voltage Range
      • VCC from 1.6 to 3.6 V
    • Temperature range:
      • Industrial range: -40 °C to +85 °C
      • Extended range: -40 °C to +105 °C
    • Fast read:
      • 50 MHz read single output
      • 80 MHz fast read single/dual/quad output with one dummy byte
  • Memory
    • 32 Mbits of page EEPROM
      • 64-Kbyte blocks, 4-Kbyte sectors
      • Page size: 512 bytes
      • Two identification pages
    • Write endurance:
      • 500 kcycles on full temperature range
    • Data Retention:
      • 100 years
      • 10 years after 500 kcycles
  • Ultra-low power consumption
    • 0.6 µA (typ) in deep power-down mode
    • 16 µA (typ) in Standby mode
    • 800 µA (typ) for read single at 10 MHz
    • 2 mA (typ) for page write
    • Current peak control < 3 mA
  • High write erase performance
    • Fast Write/Prog/Erase times:
      • 2 ms (typ) for byte and page write for 512 bytes
      • 1.2 ms (typ) for page program (512 bytes)
      • 0.9 ms (typ) for page erase
      • 1 ms (typ) for sector erase
      • 3.7 ms (typ) for block erase
      • 15 ms (typ) for chip erase
    • Page program with buffer load
  • Advanced features
    • ECC for high memory reliability (DEC,TED)
    • Schmitt trigger inputs for noise filtering
    • Output buffer programmable strength
    • Operating status flags for ISO26262
    • Software reset
    • Write protection by block, with top/bottom option
    • Electronic identification
    • Unique ID upon request
    • JEDEC standard manufacturer identification
    • Support of serial flash memory discoverable parameters (SFDP) mode

More information on the M95P32 32 Mbit Serial SPI Page EEPROM is available on the ST website at STMicroelectronics M95P32 product page.


The STMicroelectronics website address is www.st.com.
[Reprinted with kind permission from STMicroelectronics - Release Date, 21st June, 2022]