Overview
The M95020-DRDW3TP/K is a 2-Kbit serial EEPROM device from STMicroelectronics, designed for automotive applications. It operates up to 145°C and is compliant with the high reliability standards defined by the Automotive standard AEC-Q100 grade 0. The device features a simple serial SPI compatible interface that can run up to 20 MHz. It uses advanced true EEPROM technology, providing byte-alterable memory organized into 16 pages of 16 bytes each, with an embedded Error Correction Code logic to enhance data integrity. An additional Identification Page allows for device identification and storage of sensitive application parameters, which can be permanently locked in read-only mode.
Key Specifications
| Specification | Details |
|---|---|
| Memory Size | 2 Kbit (256 × 8 bits) |
| Page Size | 16 bytes |
| Write Protection | Block protection: 1/4, 1/2 or whole memory |
| Interface | SPI compatible, up to 20 MHz |
| Operating Temperature | 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) |
| 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 | 4000 V (Human Body Model) |
| Packages | TSSOP-8L, DFN8, SO8 (RoHS-compliant and halogen-free, ECOPACK2) |
Key Features
- Compatible with the Serial Peripheral Interface (SPI) bus
- 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
- Additional Write lockable Identification Page
- Extended temperature and voltage ranges
- RoHS-compliant and halogen-free (ECOPACK2)
Applications
The M95020-DRDW3TP/K is designed for use in automotive applications where high reliability and durability are critical. It is suitable for various automotive systems, including but not limited to, engine control units, transmission control units, and other automotive electronic control modules that require robust and reliable memory solutions.
Q & A
- What is the memory size of the M95020-DRDW3TP/K? The memory size is 2 Kbit (256 × 8 bits).
- What interface does the M95020-DRDW3TP/K use? It uses a SPI compatible interface.
- What are the operating temperature ranges for the M95020-DRDW3TP/K? It operates up to 125 °C (VCC from 1.7 V to 5.5 V) and up to 145 °C (VCC from 2.5 V to 5.5 V).
- What is the write cycle endurance of the M95020-DRDW3TP/K? It has 4 million Write cycles at 25 °C, 1.2 million Write cycles at 85 °C, 600 k Write cycles at 125 °C, and 400 k Write cycles at 145 °C.
- How long does the M95020-DRDW3TP/K retain data? It retains data for 50 years at 125 °C and 100 years at 25 °C.
- What kind of ESD protection does the M95020-DRDW3TP/K have? It has 4000 V ESD protection (Human Body Model).
- What packages are available for the M95020-DRDW3TP/K? It is available in TSSOP-8L, DFN8, and SO8 packages, all of which are RoHS-compliant and halogen-free (ECOPACK2).
- Can the M95020-DRDW3TP/K be used in non-automotive applications? While it is primarily designed for automotive applications, its robust features make it suitable for other high-reliability environments as well.
- How does the M95020-DRDW3TP/K enhance data integrity? It uses an embedded Error Correction Code logic.
- What is the purpose of the Identification Page in the M95020-DRDW3TP/K? The Identification Page can be used to read the ST device identification and store sensitive application parameters, which can later be permanently locked in read-only mode.
