Overview
The M95256-DWDW4TP/K is a 256-Kbit serial EEPROM device manufactured by STMicroelectronics. This device is part of the M95256 series, which is designed for high-reliability applications, including automotive and industrial sectors. It operates within a wide temperature range of -40°C to 105°C and is compliant with the AEC-Q100 grade 2 reliability standard, ensuring robust performance in demanding environments.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Size | 256 Kbits (32 Kbytes) |
| Memory Interface | SPI |
| Supply Voltage Min | 1.7 V |
| Supply Voltage Max | 5.5 V |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 105°C |
| Package Type | 8-TSSOP |
| Write Cycle Time - Word, Page | 5 ms |
| Clock Frequency | 20 MHz |
| ESD Protection | Enhanced |
| Data Retention | More than 200 years |
| Write Cycles | More than 4 million |
| RoHS Compliance | Ecopack2 |
Key Features
- Compatible with the serial peripheral interface (SPI) bus, operating up to 20 MHz.
- 256-Kbit (32 Kbytes) of EEPROM memory, organized as 32768 x 8 bits.
- Page size: 64 bytes, with an additional write lockable Identification page (64 bytes).
- Write protect options for quarter array, half array, or whole memory array.
- Enhanced ESD protection and more than 4 million write cycles.
- More than 200-year data retention.
- AEC-Q100 grade 2 qualified for automotive applications.
- Available in various packages including SO8N, TSSOP8, UFDFPN8, and WLCSP8, all of which are RoHS compliant.
Applications
The M95256-DWDW4TP/K is suitable for a variety of applications, particularly in the automotive and industrial sectors. Its high reliability, wide operating temperature range, and robust performance make it ideal for use in:
- Automotive systems, including engine control units, safety systems, and infotainment systems.
- Industrial control systems, such as PLCs and automation equipment.
- Consumer electronics requiring non-volatile memory with high reliability.
- Medical devices that need stable and secure data storage.
Q & A
- What is the memory size of the M95256-DWDW4TP/K?
The M95256-DWDW4TP/K has a memory size of 256 Kbits (32 Kbytes). - What is the operating temperature range of the M95256-DWDW4TP/K?
The device operates within a temperature range of -40°C to 105°C. - What is the clock frequency of the SPI interface?
The SPI interface operates up to 20 MHz. - Is the M95256-DWDW4TP/K RoHS compliant?
Yes, the device is RoHS compliant and comes in Ecopack2 packaging. - What is the write cycle time for the M95256-DWDW4TP/K?
The write cycle time is within 5 ms for both byte and page writes. - How many write cycles can the M95256-DWDW4TP/K endure?
The device can endure more than 4 million write cycles. - What is the data retention period of the M95256-DWDW4TP/K?
The data retention period is more than 200 years. - Is the M95256-DWDW4TP/K suitable for automotive applications?
Yes, it is AEC-Q100 grade 2 qualified, making it suitable for automotive applications. - What are the available package types for the M95256-DWDW4TP/K?
The device is available in SO8N, TSSOP8, UFDFPN8, and WLCSP8 packages. - Does the M95256-DWDW4TP/K have enhanced ESD protection?
Yes, the device features enhanced ESD protection.
