Overview
The M95040-DRDW8TP/K is a 4-Kbit serial EEPROM device produced by STMicroelectronics. This device operates up to 105 °C and is compliant with the reliability standards defined by the AEC-Q100 grade 2. It features a simple serial SPI compatible interface that can run up to 20 MHz. The memory array is based on advanced true EEPROM technology, organized as 32 pages of 16 bytes each, with an embedded Error Correction Code logic to enhance data integrity. Additionally, it includes an Identification Page for storing device identification and application-specific parameters, which can be permanently locked in read-only mode.
Key Specifications
| Specification | Value |
|---|---|
| Memory Capacity | 4 Kbit (512 bytes) |
| Page Size | 16 bytes |
| Write Protection | 1/4, 1/2 or whole memory |
| Identification Page | 16 bytes (lockable in read-only mode) |
| Operating Temperature | Up to 105 °C |
| Supply Voltage (VCC) | 1.7 V to 5.5 V |
| Clock Frequency | 20 MHz (VCC ≥ 4.5 V), 10 MHz (VCC ≥ 2.5 V), 5 MHz (VCC ≥ 1.7 V) |
| Write Cycle Time | Byte Write within 4 ms, Page Write within 4 ms |
| Write Cycle Endurance | 4 million cycles at 25 °C, 1.2 million cycles at 85 °C, 900 k cycles at 105 °C |
| Data Retention | More than 50 years at 105 °C, 200 years at 55 °C |
| ESD Protection | 4000 V (Human Body Model) |
| Packages | RoHS-compliant and halogen-free (ECOPACK2®), TSSOP-8L, SO8, DFN8 |
Key Features
- Compatible with the Serial Peripheral Interface (SPI) bus
- Memory array: 4 Kbit (512 bytes) of EEPROM
- Page size: 16 bytes
- Write protection by block: 1/4, 1/2 or whole memory
- Additional Write lockable Identification Page (16 bytes)
- Extended temperature and voltage range: Up to 105 °C (VCC from 1.7 V to 5.5 V)
- High speed clock frequency: Up to 20 MHz
- 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 at 85 °C, 900 k at 105 °C
- Data retention: More than 50 years at 105 °C, 200 years at 55 °C
- ESD Protection (Human Body Model): 4000 V
- Rohs-compliant and halogen-free packages (ECOPACK2®)
Applications
The M95040-DRDW8TP/K is suitable for a variety of applications that require reliable and high-speed non-volatile memory. These include:
- Automotive systems: Given its compliance with AEC-Q100 grade 2, it is ideal for automotive applications where reliability and temperature stability are critical.
- Industrial control systems: The device's extended temperature range and robust write cycle endurance make it suitable for industrial environments.
- Consumer electronics: It can be used in various consumer electronic devices that require non-volatile memory with high reliability and data integrity.
- Medical devices: The high reliability and data retention capabilities make it a good fit for medical devices that require stable and secure data storage.
Q & A
- What is the memory capacity of the M95040-DRDW8TP/K?
The memory capacity is 4 Kbit (512 bytes) organized as 32 pages of 16 bytes each.
- What is the operating temperature range of the M95040-DRDW8TP/K?
The device operates up to 105 °C.
- What is the clock frequency of the M95040-DRDW8TP/K?
The clock frequency can be up to 20 MHz depending on the supply voltage (VCC ≥ 4.5 V).
- How is the write protection implemented in the M95040-DRDW8TP/K?
The device offers write protection by block: 1/4, 1/2 or whole memory.
- What is the purpose of the Identification Page in the M95040-DRDW8TP/K?
The Identification Page (16 bytes) is used to store device identification and application-specific parameters, which can be permanently locked in read-only mode.
- What is the write cycle endurance of the M95040-DRDW8TP/K?
The write cycle endurance is 4 million cycles at 25 °C, 1.2 million cycles at 85 °C, and 900 k cycles at 105 °C.
- How long does the data retention last in the M95040-DRDW8TP/K?
The data retention is more than 50 years at 105 °C and 200 years at 55 °C.
- What kind of ESD protection does the M95040-DRDW8TP/K have?
The device has ESD protection of 4000 V (Human Body Model).
- Is the M95040-DRDW8TP/K RoHS-compliant?
- What are the available packages for the M95040-DRDW8TP/K?
The available packages include TSSOP-8L, SO8, and DFN8.
- What is the significance of AEC-Q100 grade 2 compliance for the M95040-DRDW8TP/K?
AEC-Q100 grade 2 compliance indicates that the device meets the reliability standards for automotive applications, ensuring high reliability and performance under various conditions.
