Overview
The M95M01-DWDW3TP/K is a 1-Mbit serial EEPROM device manufactured by STMicroelectronics, designed for automotive applications. It operates up to 145°C and is compliant with the AEC-Q100 grade 0 standard, ensuring a high level of reliability. The device is accessed through a simple serial SPI compatible interface, which can run up to 16 MHz. The memory array is based on advanced true EEPROM technology, organized as 131072 x 8 bits, with 512 pages of 256 bytes each. An additional 256-byte identification page is available for storing sensitive application parameters that can be permanently locked in read-only mode.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Capacity | 1 Mbit (128 Kbytes) |
| Page Size | 256 bytes |
| Identification Page | 256 bytes (lockable in read-only mode) |
| Supply Voltage | 2.5 V to 5.5 V |
| Operating Temperature Range | -40°C to +85°C (standard), up to 145°C (extended) |
| Clock Frequency | Up to 16 MHz (VCC ≥ 4.5 V), up to 10 MHz (VCC ≥ 2.5 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 | 50 years at 125°C, 100 years at 25°C |
| ESD Protection | 4000 V (Human Body Model) |
| Packages | TSSOP-8L, SO8, WLCSP (all RoHS-compliant and halogen-free, ECOPACK2) |
Key Features
- Compatible with the Serial Peripheral Interface (SPI) bus
- Advanced true EEPROM technology with Error Correction Code logic
- Write protection by block: quarter, half or whole memory array
- Additional write lockable identification page
- Extended temperature and voltage ranges
- High speed clock frequency up to 16 MHz
- Schmitt trigger inputs for noise filtering
- Short write cycle time: byte and page write within 4 ms
- High write cycle endurance and long data retention
- Enhanced ESD protection: 4000 V (Human Body Model)
- RoHS-compliant and halogen-free packages (ECOPACK2)
Applications
The M95M01-DWDW3TP/K is primarily designed for automotive applications, where high reliability and robust performance are critical. It can be used in various automotive systems, including but not limited to:
- Automotive control units
- Safety and security systems
- Infotainment systems
- Telematics and navigation systems
- Other high-reliability automotive electronics
Q & A
- What is the memory capacity of the M95M01-DWDW3TP/K?
The M95M01-DWDW3TP/K has a memory capacity of 1 Mbit (128 Kbytes).
- What is the operating temperature range of the M95M01-DWDW3TP/K?
The device operates from -40°C to +85°C (standard) and up to 145°C (extended).
- What is the clock frequency of the M95M01-DWDW3TP/K?
The clock frequency can be up to 16 MHz for VCC ≥ 4.5 V and up to 10 MHz for VCC ≥ 2.5 V.
- How many write cycles can the M95M01-DWDW3TP/K 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 M95M01-DWDW3TP/K?
The data retention period is 50 years at 125°C and 100 years at 25°C.
- Does the M95M01-DWDW3TP/K have ESD protection?
Yes, it has enhanced ESD protection of 4000 V (Human Body Model).
- What types of packages are available for the M95M01-DWDW3TP/K?
The device is available in TSSOP-8L, SO8, and WLCSP packages, all of which are RoHS-compliant and halogen-free (ECOPACK2).
- Can the identification page be locked in read-only mode?
Yes, the 256-byte identification page can be permanently locked in read-only mode.
- Is the M95M01-DWDW3TP/K compliant with automotive standards?
Yes, it is compliant with the AEC-Q100 grade 0 standard.
- What interface does the M95M01-DWDW3TP/K use?
The device uses the Serial Peripheral Interface (SPI) bus.
