Overview
The M95256-WMN6P is an electrically erasable programmable memory (EEPROM) device produced by STMicroelectronics. It is organized as 32768 x 8 bits, providing a total of 256 Kbits (32 Kbytes) of memory, accessible through the Serial Peripheral Interface (SPI) bus. This device 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-WMN6P features an additional write lockable page known as the Identification page, which can store sensitive application parameters and be permanently locked in read-only mode.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Organization | 32768 x 8 bits |
| Total Memory | 256 Kbits (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 | 20 MHz |
| Write Time | Byte Write: 5 ms, Page Write: 5 ms |
| Write Cycles | More than 4 million |
| Data Retention | More than 200 years |
| Packages | SO8N, TSSOP8, UFDFPN8, WLCSP8 |
Key Features
- Compatible with the Serial Peripheral Interface (SPI) bus
- 256-Kbit (32 Kbytes) of EEPROM memory
- Additional write lockable Identification page (64 bytes)
- Write protect for quarter array, half array, or whole memory array
- High-speed clock: 20 MHz
- Enhanced ESD protection
- More than 4 million Write cycles and more than 200-year data retention
- Available in SO8N, TSSOP8, UFDFPN8, and WLCSP8 packages
Applications
The M95256-WMN6P is suitable for a variety of applications that require non-volatile memory, including:
- Automotive systems
- Industrial control systems
- Consumer electronics
- Medical devices
- Any system requiring secure and reliable data storage
Q & A
- What is the memory organization of the M95256-WMN6P?
The M95256-WMN6P is organized as 32768 x 8 bits.
- What is the total memory capacity of the M95256-WMN6P?
The total memory capacity is 256 Kbits (32 Kbytes).
- What is the supply voltage range for the M95256-WMN6P?
The supply voltage range is from 2.5 V to 5.5 V.
- What is the operating temperature range for the M95256-WMN6P?
The operating temperature range is from -40 °C to +85 °C.
- What is the high-speed clock frequency of the M95256-WMN6P?
The high-speed clock frequency is 20 MHz.
- How long does it take to write a byte or a page to the M95256-WMN6P?
Both byte and page writes take within 5 ms.
- What is the write cycle endurance of the M95256-WMN6P?
The device can endure more than 4 million write cycles.
- How long does the data retain in the M95256-WMN6P?
The data retention is more than 200 years.
- What packages are available for the M95256-WMN6P?
The device is available in SO8N, TSSOP8, UFDFPN8, and WLCSP8 packages.
- What is the purpose of the Identification page in the M95256-WMN6P?
The Identification page is a write lockable page that can store sensitive application parameters and be permanently locked in read-only mode.
- How is the write protection implemented in the M95256-WMN6P?
The device features write protection for quarter array, half array, or whole memory array, and also includes hardware protection through the Write protect (W) signal and the Status register bits.
