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

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 and M95256-DR 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-Dx offers an additional page, named the Identification Page (64 bytes). The Identification Page can be used to store sensitive application parameters which can be (later) permanently locked in Read-only mode.

Key Features

  • Compatible with the Serial Peripheral Interface (SPI) bus
  • Memory array
    • 256 Kb (32 Kbytes) of EEPROM
    • Page size: 64 bytes
  • Write
    • Byte Write within 5 ms
    • Page Write within 5 ms
  • Additional Write lockable page (Identification page)
  • Write Protect: quarter, half or 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 and M95256-DR
    • 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
    • RoHS compliant and halogen-free (ECOPACK® )
产品规格
DescriptionVersionSize
DS4712: 256-Kbit serial SPI bus EEPROM with high-speed clock20.11 MB
应用手册
DescriptionVersionSize
AN4653: Cycling endurance and data retention of high density EEPROM based on CMOS F8H process1.0267 KB
Technical Notes & Articles
DescriptionVersionSize
TN1171: Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use3.0574 KB
TN0991: Description of WLCSP for STMicroelectronics EEPROMs and recommendations for use2.1722 KB
勘误手册
DescriptionVersionSize
ES0371: M95256-R and M95256-DF package mechanical data modifications1.0230 KB
HW Model & CAD Libraries
DescriptionVersionSize
IBIS model SPI M95xxx Standard EEPROM (-40 degC to 85 degC)5.04 MB
Verilog model I2C EEPROM M24XXX2.018 KB
Verilog model SPI EEPROM M95XXX2.162 KB
简报
DescriptionVersionSize
EEPROM general presentation1.0627 KB
EEPROM in UFDFPN51.0527 KB
EEPROM in WLCSP July 20161.4281 KB
宣传册
DescriptionVersionSize
EEPROMs in miniature packages1.02 MB
Serial EEPROM1.01 MB
选型指南
DescriptionVersionSize
EEPROM selection guide1.01007 KB
手册
DescriptionVersionSize
Products and solutions for solar energy1.01 MB
Semiconductor solutions for healthcare applications1.0665 KB
Smart grid distribution and smart meters - Energy-efficient solutions2.01 MB
样片和购买
型号Replacement ProductPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
M95256-RMN6TP-SO8Tape And Reel-40850.361000NECEAR99CHINA
M95256-RCS6TP/AM95256-DFCS6TP/KWLCSPTape And Reel-40850.681000NECEAR99-
M95256-RMC6TG-UFDFPN8Tape And Reel-40850.4951000NECEAR99PHILIPPINES
M95256-RDW6TP-TSSOP8Tape And Reel-40850.41000NECEAR99CHINA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
M95256-RMN6TPSO8IndustrialEcopack2pho7_9556bkb.pdf
M95256-RCS6TP/AWLCSPIndustrialEcopack2p71c_9i563ab.pdf
M95256-RMC6TGUFDFPN8IndustrialEcopack2cgzw_9556ckb.pdf
M95256-RDW6TPTSSOP8IndustrialEcopack2pt6p_9556bkb_signed.pdf
pt6p_9556bkb.xml
256-Kbit serial SPI bus EEPROM with high-speed clock M95256-DF
circuit_diagram_12276_thumbnail.png M95256-W
Cycling endurance and data retention of high density EEPROM based on CMOS F8H process M95512-R
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M24128-A125
Description of WLCSP for STMicroelectronics EEPROMs and recommendations for use M95512-R
M95256-R and M95256-DF package mechanical data modifications M95256-DF
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M95080-DRE
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M24128-A125
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M24128-A125
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M95080-DRE
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M95080-DRE
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M95080-DRE
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M95080-DRE
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M95080-DRE
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M95080-DRE
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M95080-DRE
STM8L101xx device limitations STM8L101G3
STEVAL-ISA062V1: 6 W, wide-range dual and single output SMPS demonstration board based on the VIPer17 STEVAL-ISA062V1
pho7_9556bkb.pdf M95256-DF
p71c_9i563ab.pdf M95256-R
cgzw_9556ckb.pdf M95256-R
pt6p_9556bkb_signed.pdf M95256-DF
pt6p_9556bkb.xml M95256-DF