Overview
The M95640-WMN6T is an electrically erasable programmable memory (EEPROM) device produced by STMicroelectronics. It is organized as 8192 x 8 bits, providing a total of 64 Kbits of memory. 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 over a wide single supply voltage range, from 2.5 V to 5.5 V, and is designed to function within an ambient temperature range of -40 °C to +85 °C. The M95640-WMN6T features high-speed clock frequencies up to 20 MHz and offers advanced features such as enhanced ESD protection, more than 4 million write cycles, and more than 200-year data retention.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Organization | 8192 x 8 bits (64 Kbits) |
| Interface | SPI (Serial Peripheral Interface) |
| Supply Voltage | 2.5 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Clock Frequency | Up to 20 MHz |
| Write Cycle Time | Byte and page write within 5 ms |
| Write Cycles | More than 4 million |
| Data Retention | More than 200 years |
| Package Options | SO8, TSSOP8, UFDFPN8, WLCSP |
Key Features
- SPI Interface Compatibility: Compatible with the serial peripheral interface (SPI) bus, supporting positive clock SPI modes.
- Wide Supply Voltage Range: Operates with a single supply voltage from 2.5 V to 5.5 V.
- High-Speed Clock Frequency: Supports clock frequencies up to 20 MHz.
- Advanced Data Protection: Features include write protect, block protect, and an additional write lockable identification page.
- High Reliability: Enhanced ESD protection, more than 4 million write cycles, and more than 200-year data retention.
- Multiple Package Options: Available in SO8, TSSOP8, UFDFPN8, and WLCSP packages.
Applications
The M95640-WMN6T EEPROM is suitable for a variety of applications where non-volatile memory is required. These include:
- Industrial Automation: For storing configuration data, calibration parameters, and other non-volatile data in industrial control systems.
- Consumer Electronics: Used in devices such as set-top boxes, gaming consoles, and other consumer electronic products that require non-volatile memory.
- Automotive Systems: For storing parameters and configuration data in automotive systems, including infotainment and control units.
- Medical Devices: Suitable for medical devices that need to store patient data, calibration settings, and other critical information.
- IoT Devices: Ideal for Internet of Things (IoT) devices that require non-volatile memory for storing configuration and operational data.
Q & A
- What is the memory organization of the M95640-WMN6T?
The M95640-WMN6T is organized as 8192 x 8 bits, providing a total of 64 Kbits of memory.
- What interface does the M95640-WMN6T use?
The device uses the Serial Peripheral Interface (SPI) bus.
- What is the operating supply voltage range of the M95640-WMN6T?
The device operates with a single supply voltage from 2.5 V to 5.5 V.
- What is the maximum clock frequency supported by the M95640-WMN6T?
The device supports clock frequencies up to 20 MHz.
- How many write cycles can the M95640-WMN6T endure?
The device can endure more than 4 million write cycles.
- What is the data retention period of the M95640-WMN6T?
The device offers more than 200-year data retention.
- What package options are available for the M95640-WMN6T?
The device is available in SO8, TSSOP8, UFDFPN8, and WLCSP packages.
- Does the M95640-WMN6T have any data protection mechanisms?
Yes, it features write protect, block protect, and an additional write lockable identification page.
- How does the hold signal function in the M95640-WMN6T?
The hold signal is used to pause any serial communications with the device without resetting the clocking sequence.
- What is the purpose of the write protect (W) signal in the M95640-WMN6T?
The write protect (W) signal is used to protect the block protect bits in the status register.
