M95040-A125:Automotive 4-Kbit SPI bus EEPROM with high-speed clock

The M95040-A125 and M95040-A145 are 4-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 M95040-A125 and M95040-A145 are byte-alterable memories (512 × 8 bits) organized as 32 pages of 16 byte in which the data integrity is significantly improved with an embedded Error Correction Code logic.

The M95040-A125 and M95040-A145 offer an additional Identification Page (16 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
    • 4 Kbit (512 byte) of EEPROM
    • Page size: 16 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® )
Product Specifications
DescriptionVersionSize
DS9475: Automotive 4-Kbit serial SPI bus EEPROMs with high-speed clock6.0765 KB
Application Notes
DescriptionVersionSize
AN4434: CMOS F8H automotive EEPROM cycling endurance and data retention4.0367 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
Presentations
DescriptionVersionSize
EEPROM Advanced Automotive products1.0671 KB
Selection Guides
DescriptionVersionSize
EEPROM Advanced Automotive selection guide1.0709 KB
Sample & Buy
Part NumberReplacement ProductPackagePacking TypeMarketing RestrictionUnit Price (US$) *Temperature range (°C)QuantityECCN (EU)ECCN (US)Country of Origin
M95040-DRMF3TG/K-WFDFPN8Tape And ReelPublic0.27-40 to 1251000NECEAR99-
M95040-DRMN3TP/K-SO8Tape And ReelPublic0.24-40 to 1251000NECEAR99CHINA
M95040-DRDW3TP/K-TSSOP8Tape And ReelPublic0.24-40 to 1251000NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
M95040-DRMF3TG/KWFDFPN8AutomotiveEcopack2cgbm_95041kn_signed.pdf
cgbm_95041kn.xml
M95040-DRMN3TP/KSO8AutomotiveEcopack2pgo7_95041kn.pdf
pgo7_95041kn_data.xml
M95040-DRDW3TP/KTSSOP8AutomotiveEcopack2pt6p_95041kn.pdf
pt6p_95041kn_data.xml
Automotive 4-Kbit serial SPI bus EEPROMs with high-speed clock M95040-A145
CMOS F8H automotive EEPROM cycling endurance and data retention 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
cgbm_95041kn_signed.pdf M95040-A125
cgbm_95041kn.xml M95040-A125
pgo7_95041kn.pdf M95040-A125
pgo7_95041kn_data.xml M95040-A125
pt6p_95041kn.pdf M95040-A125
pt6p_95041kn_data.xml M95040-A125