M24256-BF:256 Kbit serial I2C bus EEPROM

The M24256 is a 256-Kbit I2C-compatible EEPROM (Electrically Erasable PROgrammable Memory) organized as 32 K × 8 bits.

The M24256-BW can operate with a supply voltage from 2.5 V to 5.5 V, the M24256-BR and M24256-DR can operate with a supply voltage from 1.8 V to 5.5 V, and the M24256-BF and M24256-DF can operate with a supply voltage from 1.7 V to 5.5 V. All these devices operate with a clock frequency of 1 MHz (or less), over an ambient temperature range of –40 °C / +85 °C.

Key Features

  • Compatible with all I2 C bus modes:
    • 1 MHz
    • 400 kHz
    • 100 kHz
  • Memory array:
    • 256 Kbit (32 Kbytes) of EEPROM
    • Page size: 64 bytes
    • Additional Write lockable page (M24256-D order codes)
  • Single supply voltage and high speed:
    • 1 MHz clock from 1.7 V to 5.5 V
  • Write:
    • Byte Write within 5 ms
    • Page Write within 5 ms
  • Operating temperature range:
    • from -40 °C up to +85 °C
  • Random and sequential Read modes
  • Write protect of the whole memory array
  • Enhanced ESD/Latch-Up protection
  • More than 4 million Write cycles
  • More than 200-years data retention
  • Packages
    • SO8 ECOPACK2®
    • TSSOP8 ECOPACK2®
    • UFDFPN8 ECOPACK2®
    • WLCSP ECOPACK2®
产品规格
DescriptionVersionSize
DS1766: 256-Kbit serial I²C bus EEPROM33.0797 KB
应用手册
DescriptionVersionSize
AN4653: Cycling endurance and data retention of high density EEPROM based on CMOS F8H process1.0267 KB
AN971: I2C communication between ST7 and M24CXX EEPROM1.668 KB
AN1471: What happens to the M24xxx I²C EEPROM if the I²C bus communication is stopped?4.373 KB
Technical Notes & Articles
DescriptionVersionSize
TN1171: Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use3.0574 KB
TN0440: M24256 and M24512 EEPROM devices: compatibility with the I²C-bus specification at 400 kHz and 1 MHz2.0158 KB
HW Model & CAD Libraries
DescriptionVersionSize
IBIS model I2C M24xxx Standard EEPROM (-40 degC to 85 degC)4.05 MB
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
M24256-BFMC6TG-UFDFPN8Tape And Reel-40850.291000NECEAR99PHILIPPINES
M24256-BFDW6TP-TSSOP8Tape And Reel-40850.261000NECEAR99CHINA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
M24256-BFMC6TGUFDFPN8IndustrialEcopack2cgzw_2456ckb_signed.pdf
cgzw_2456ckb.xml
M24256-BFDW6TPTSSOP8IndustrialEcopack2pt6p_2456bkb.pdf
256-Kbit serial I²C bus EEPROM M24256-BF
Cycling endurance and data retention of high density EEPROM based on CMOS F8H process M95512-R
I2C communication between ST7 and M24CXX EEPROM STSW-ST7098
What happens to the M24xxx I²C EEPROM if the I²C bus communication is stopped? M24128-A125
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M24128-A125
M24256 and M24512 EEPROM devices: compatibility with the I²C-bus specification at 400 kHz and 1 MHz M24256-BF
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M24C64-R
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
cgzw_2456ckb_signed.pdf M24256-BF
cgzw_2456ckb.xml M24256-BF
pt6p_2456bkb.pdf M24256-BF