Overview
The M95040-DRMN3TP/K is an automotive-grade 4-Kbit serial EEPROM (Electrically Erasable Programmable Memory) device produced by STMicroelectronics. It is designed to operate up to 145 °C and complies with the high reliability automotive standard AEC-Q100 grade 0. The device is accessed through a simple serial SPI-compatible interface running at up to 20 MHz. It features byte-alterable memory organized as 32 pages of 16 bytes, with embedded error correction code logic to improve data integrity. An additional identification page allows for storing sensitive application parameters and device identification, which can be permanently locked in read-only mode.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Density | 4-Kbit (512 bytes) |
| Interface | SPI (Serial Peripheral Interface) |
| Page Size | 16 bytes |
| Write Protection | ¼, ½, or whole memory |
| Supply Voltage | 1.7 to 5.5 V up to 125 °C, 2.5 to 5.5 V up to 145 °C |
| Operating Temperature | -40 °C to +125 °C (range 3), -40 °C to +145 °C (range 4) |
| 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 |
| Write Cycle Time | Byte and page write within 4 ms |
| Write Cycle Endurance | 4 million cycles at 25 °C, 1.2 million cycles at 85 °C, 600k cycles at 125 °C, 400k cycles at 145 °C |
| Data Retention | 100 years at 25 °C, 50 years at 125 °C |
| Packages | SO8N, TSSOP8, and WFDFPN8 (ECOPACK2-compliant) |
Key Features
- AEC-Q100 grade 0 qualification for high reliability in automotive applications
- SPI interface compatible with serial peripheral interface bus
- Additional write-lockable identification page for device identification and application parameters
- Schmitt trigger inputs for noise filtering
- ESD human body model 4000 V protection
- Write protection by block: ¼, ½, or whole memory
- Embedded error correction code logic for improved data integrity
Applications
The M95040-DRMN3TP/K is designed for use in various automotive applications where high reliability and durability are critical. These include:
- Automotive control units and systems
- Infotainment and navigation systems
- Safety and security systems
- Automotive sensors and actuators
- Other high-temperature and high-reliability applications
Q & A
- What is the memory density of the M95040-DRMN3TP/K?
The memory density is 4-Kbit (512 bytes).
- What interface does the M95040-DRMN3TP/K use?
The device uses a SPI (Serial Peripheral Interface) bus.
- What is the operating temperature range of the M95040-DRMN3TP/K?
The operating temperature range is -40 °C to +125 °C (range 3) and -40 °C to +145 °C (range 4).
- What is the maximum clock frequency for the SPI interface?
The maximum clock frequency is 20 MHz for VCC ≥ 4.5 V, 10 MHz for VCC ≥ 2.5 V, and 5 MHz for VCC ≥ 1.7 V.
- How many write cycles can the device endure?
The device can endure 4 million write cycles at 25 °C, 1.2 million cycles at 85 °C, 600k cycles at 125 °C, and 400k cycles at 145 °C.
- What is the data retention period of the M95040-DRMN3TP/K?
The data retention period is 100 years at 25 °C and 50 years at 125 °C.
- What types of packages are available for the M95040-DRMN3TP/K?
The device is available in SO8N, TSSOP8, and WFDFPN8 (ECOPACK2-compliant) packages.
- Does the M95040-DRMN3TP/K have any built-in protection against noise and ESD?
Yes, it features Schmitt trigger inputs for noise filtering and ESD human body model 4000 V protection.
- Can the identification page be locked in read-only mode?
Yes, the identification page can be permanently locked in read-only mode after writing sensitive application parameters.
- What is the purpose of the embedded error correction code logic?
The embedded error correction code logic is used to significantly improve data integrity.
