Overview
The M95256-WDW6TP is a 256 Kbit electrically erasable programmable memory (EEPROM) produced by STMicroelectronics. This device is organized as 32768 x 8 bits and is accessed through the Serial Peripheral Interface (SPI) bus. It operates within a supply voltage range of 2.5 V to 5.5 V and is designed to function over an ambient temperature range of -40 °C to +85 °C. The M95256-WDW6TP features an additional write lockable Identification page, enhanced ESD protection, and high-speed clock capabilities up to 20 MHz.
Key Specifications
| Specification | Details |
|---|---|
| Memory Capacity | 256 Kbit (32 Kbytes) |
| Page Size | 64 bytes |
| Supply Voltage | 2.5 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| High-Speed Clock | Up to 20 MHz |
| Write Time | Byte Write: 5 ms, Page Write: 5 ms |
| Write Protect | Quarter array, Half array, Whole memory array |
| Write Cycles | More than 4 million |
| Data Retention | More than 200 years |
| Packages | SO8N, TSSOP8, UFDFPN8, WLCSP8 (all ECOPACK2) |
Key Features
- Compatible with the Serial Peripheral Interface (SPI) bus
- Additional write lockable Identification page (64 bytes)
- High-speed clock: up to 20 MHz
- Enhanced ESD protection
- More than 4 million Write cycles
- More than 200-year data retention
- Write protect for quarter array, half array, and whole memory array
- Operating in Standby power mode and power-down conditions with specific requirements
- Data protection mechanisms including block protect and write protect signals
Applications
The M95256-WDW6TP is suitable for a variety of applications that require non-volatile memory, including:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- IoT devices requiring secure and reliable data storage
Q & A
- What is the memory capacity of the M95256-WDW6TP?
The M95256-WDW6TP has a memory capacity of 256 Kbit (32 Kbytes).
- What is the supply voltage range for the M95256-WDW6TP?
The supply voltage range is from 2.5 V to 5.5 V.
- What is the operating temperature range for this device?
The operating temperature range is from -40 °C to +85 °C.
- What is the maximum high-speed clock frequency?
The maximum high-speed clock frequency is up to 20 MHz.
- How many write cycles can the M95256-WDW6TP endure?
The device can endure more than 4 million write cycles.
- What is the data retention period for this EEPROM?
The data retention period is more than 200 years.
- What types of packages are available for the M95256-WDW6TP?
The available packages include SO8N, TSSOP8, UFDFPN8, and WLCSP8, all of which are ECOPACK2.
- Does the M95256-WDW6TP have any additional memory pages?
Yes, it features an additional write lockable Identification page of 64 bytes.
- What are the write protect options for this device?
The device offers write protect for the quarter array, half array, and whole memory array.
- How does the device handle power-up and power-down conditions?
The device must be deselected and in Standby power mode during power-down, and the Chip select (S) line should follow the VCC voltage during power-up.
