M95256-A125:Automotive 256 Kbit SPI bus EEPROM with high speed clock

The M95256-A125 and M95256-A145 are 256-Kbit serial EEPROM Automotive grade devices operating up to 145°C. They are compliant with the very high level of reliability defined by the Automotive standard AEC-Q100 grade 0.

The devices are accessed by a simple serial SPI compatible interface running up to 20 MHz.

The memory array is based on advanced true EEPROM technology (Electrically Erasable PROgrammable Memory). The M95256-A125 and M95256-A145 are byte-alterable memories (32768 × 8 bits) organized as 512 pages of 64 byte in which the data integrity is significantly improved with an embedded Error Correction Code logic.

The M95256-A125 and M95256-A145 offer an additional Identification Page (64 byte) in which the ST device identification can be read. This page can also 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 Kbit (32 Kbyte) of EEPROM
    • Page size: 64 byte
    • Write protection by block: 1/4, 1/2 or whole memory
    • Additional Write lockable Page (Identification page)
  • Extended temperature and voltage ranges
    • Up to 125 °C (VCC from 1.7 V to 5.5 V)
    • Up to 145 °C (VCC from 2.5 V to 5.5 V)
  • High speed clock frequency
    • 20 MHz for VCC ≥ 4.5 V
    • 10 MHz for VCC ≥ 2.5 V
    • 5 MHz for VCC ≥ 1.7 V
  • Schmitt trigger inputs for noise filtering
  • Short Write cycle time
    • Byte Write within 4 ms
    • Page Write within 4 ms
  • Write cycle endurance
    • 4 million Write cycles at 25 °C
    • 1.2 million Write cycles at 85 °C
    • 600 k Write cycles at 125 °C
    • 400 k Write cycles at 145 °C
  • Data retention
    • 50 years at 125 °C
    • 100 years at 25 °C
  • ESD Protection (Human Body Model)
    • 4000 V
  • Packages
    • RoHS-compliant and halogen-free (ECOPACK2® )
产品规格
DescriptionVersionSize
DS8896: Automotive 256-Kbit serial SPI bus EEPROMs with high-speed clock8.0792 KB
应用手册
DescriptionVersionSize
AN4434: CMOS F8H automotive EEPROM cycling endurance and data retention4.0367 KB
AN2440: Embedded ECC in F8H process automotive EEPROM: device architecture and related application guidelines5.0356 KB
AN2014: How a designer can make the most of STMicroelectronics Serial EEPROMs10.01 MB
Technical Notes & Articles
DescriptionVersionSize
TN1171: Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use3.0574 KB
HW Model & CAD Libraries
DescriptionVersionSize
IBIS model I2C M24xxx Automotive EEPROM (-40 degC to 125 degC)5.01 MB
IBIS model SPI M95xxx Automotive EEPROM (-40 degC to 145 degC)5.02 MB
Verilog model I2C EEPROM M24XXX2.018 KB
Verilog model SPI EEPROM M95XXX2.162 KB
简报
DescriptionVersionSize
EEPROM Advanced Automotive products1.0671 KB
选型指南
DescriptionVersionSize
EEPROM Advanced Automotive selection guide1.0709 KB
样片和购买
型号Replacement ProductPackagePacking TypeMarketing RestrictionUnit Price (US$) *Temperature range (°C)QuantityECCN (EU)ECCN (US)Country of Origin
M95256-DRMN3TP/K-SO8Tape And ReelPublic0.6-40 to 1251000NECEAR99CHINA
M95256-DRDW3TP/K-TSSOP8Tape And ReelPublic0.6-40 to 1251000NECEAR99CHINA
M95256-DRMF3TG/K-WFDFPN8Tape And ReelPublic0.735-40 to 1251000NECEAR99-
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
M95256-DRMN3TP/KSO8AutomotiveEcopack2pgo7_95561kn.pdf
M95256-DRDW3TP/KTSSOP8AutomotiveEcopack2pt6p_95561kn.pdf
M95256-DRMF3TG/KWFDFPN8AutomotiveEcopack2cgbm_95561kn_signed.pdf
cgbm_95561kn.xml
Automotive 256-Kbit serial SPI bus EEPROMs with high-speed clock M95256-A145
CMOS F8H automotive EEPROM cycling endurance and data retention M24128-A125
Embedded ECC in F8H process automotive EEPROM: device architecture and related application guidelines M24128-A125
How a designer can make the most of STMicroelectronics Serial EEPROMs 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 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 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 M24128-A125
Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use M24128-A125
pgo7_95561kn.pdf M95256-A125
pt6p_95561kn.pdf M95256-A125
cgbm_95561kn_signed.pdf M95256-A125
cgbm_95561kn.xml M95256-A125