The M95640-125 is a 64kbit automotive serial SPI bus EEPROM with high-speed clock (10MHz) from ST.
The M95640-125 is a 64-Kbit (8 Kbytes) Electrically Erasable Programmable Memory (EEPROM) organized as 8192 x 8 bits, accessed via the Serial Peripheral Interface (SPI) bus. It is designed for automotive applications and complies with the AEC-Q100 Grade 1 standard, operating over a temperature range of -40°C to +125°C.
The device features a high-speed clock capability of up to 10 MHz and supports single supply voltages ranging from 2.5 V to 5.5 V (depending on the specific variant). It includes enhanced ESD protection, supports more than 1 million write cycles, and ensures data retention for over 40 years. The memory array is divided into pages of 32 bytes, allowing for efficient byte and page write operations within 5 ms.
| Memory Size | 64 Kb (8 Kbytes) |
|---|---|
| Page Size | 32 bytes |
| Write Time (Byte) | 5 ms |
| Write Time (Page) | 5 ms |
| Max Clock Frequency | 10 MHz |
| Operating Temperature | -40°C to +125°C |
| Write Cycles | 1 million |
| Data Retention | 40 years |
| Supply Voltage (M95640) | 4.5 V to 5.5 V |
| Supply Voltage (M95640-W) | 2.5 V to 5.5 V |
| Package Width (S08) | 150 mil |
| Package Width (TSSOP8) | 169 mil |
The device is guaranteed over a temperature range from -40°C up to +125°C.
The device supports a high-speed clock of up to 10 MHz.
A byte write operation completes within 5 ms.
Yes, the devices are compliant with the Automotive standard AEC-Q100 Grade 1.