Overview
The M95640-WMN6P is an electrically erasable programmable memory (EEPROM) device produced by STMicroelectronics. It is organized as 8192 x 8 bits, providing a total memory size of 64 Kbits (8 Kbytes). This EEPROM is accessed through the Serial Peripheral Interface (SPI) bus, making it compatible with a wide range of microcontrollers and other SPI-compatible devices.
The device operates within a supply voltage range of 2.5 V to 5.5 V and has an operating temperature range from -40 °C to +85 °C. It features an additional write lockable identification page (32 bytes) that can be used to store sensitive application parameters and later permanently locked in read-only mode.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Size | 64 Kbits (8 Kbytes) |
| Organization | 8192 x 8 bits |
| Interface Type | SPI |
| Supply Voltage | 2.5 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Page Size | 32 bytes |
| Write Cycle Time | Byte and page write within 5 ms |
| Clock Frequency | Up to 20 MHz |
| Package Types | SO8, TSSOP8, UFDFPN8, WLCSP |
| Data Retention | More than 200 years |
| Write Cycles | More than 4 million |
Key Features
- SPI interface compatible with the serial peripheral interface (SPI) bus
- 64 Kbits (8 Kbytes) of EEPROM memory
- Page size of 32 bytes
- Additional write lockable identification page (32 bytes)
- Wide single supply voltage range: 2.5 V to 5.5 V for M95640-W, 1.8 V to 5.5 V for M95640-R, and 1.7 V to 5.5 V for M95640-DF
- Operating temperature range from -40 °C to +85 °C
- Fast write cycle time: byte and page write within 5 ms
- High-speed clock frequency up to 20 MHz
- Enhanced ESD protection
- More than 4 million write cycles and more than 200-year data retention
- Write protect feature for quarter, half, or whole memory array
- Available in SO8, TSSOP8, UFDFPN8, and WLCSP packages
Applications
The M95640-WMN6P EEPROM is suitable for a variety of applications where non-volatile memory is required. These include:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- IoT devices
- Any system requiring secure and reliable non-volatile data storage
Q & A
- What is the memory organization of the M95640-WMN6P?
The M95640-WMN6P is organized as 8192 x 8 bits, providing a total memory size of 64 Kbits (8 Kbytes).
- What is the supply voltage range for the M95640-WMN6P?
The supply voltage range for the M95640-WMN6P is from 2.5 V to 5.5 V.
- What is the operating temperature range for the M95640-WMN6P?
The operating temperature range is from -40 °C to +85 °C.
- What is the page size of the M95640-WMN6P?
The page size is 32 bytes.
- How fast is the write cycle time for the M95640-WMN6P?
The write cycle time is within 5 ms for both byte and page writes.
- What is the maximum clock frequency for the M95640-WMN6P?
The maximum clock frequency is up to 20 MHz.
- What types of packages are available for the M95640-WMN6P?
The device is available in SO8, TSSOP8, UFDFPN8, and WLCSP packages.
- How many write cycles can the M95640-WMN6P endure?
The device can endure more than 4 million write cycles.
- What is the data retention period for the M95640-WMN6P?
The data retention period is more than 200 years.
- Does the M95640-WMN6P have any write protection features?
Yes, it has write protect features for quarter, half, or whole memory array.
