M95256-DFCS6TP/K

M95256-DFCS6TP/K Application Field and Working Principle

The M95256-DFCS6TP/K stands for a family of low-power, 1.8V serial SPI (Serial Peripheral Interface) EEPROMs by STMicroelectronics. This specific family includes a variety of versions with different memory densities, ranging from 32KB up to 512KB. Other features of the M95256-DFCS6TP/K family include fast access times, 4KB minimum sector erase, 10-year minimum data retention, and a low-voltage interface.

The M95256-DFCS6TP/K family is designed to be used in embedded systems and is particularly suitable for storage applications. Its wide temperature range and low-voltage interface make it easy to integrate into any low-power, energy-conserving design. Common applications for this type of memory include data logging, consumer products, digital surveillance, automobile electronics, portable medical, and industrial automation.

Features of M95256-DFCS6TP/K

• Offers 32K-bit, 64K-bit, 128K-bit, 256K-bit and 512K-bit memory densities
• Serial Peripheral Interface (SPI) compatible
• Reads at 1 MHz clock rates with three-wire interface
• 2 MHz clock rates available for higher densities
• Hardware write protection for protection of critical code and/or data
• 4KB sector erase mode
• Low-voltage interface (2.7V to 3.6V)
• Programmable ASO (Address Space Overlapping) for partitioning of memory space
• Read at 10MHz clock rate
• Two-wire interface
• 10-year minimum data retention
• Wide temperature range: -40°C to +85°C

Working Principle of M95256-DFCS6TP/K

The working principle of M95256-DFCS6TP/K lies in the serial memory protocol, SPI. SPI is a full-duplex synchronous serial communications channel, consisting of four logic signals: a serial clock (SCLK), output data (DOUT), and two data ports (Master-Out-Slave-In—MOSI, Master-In-Slave-Out—MISO). Since it is a half-duplex synchronous serial communication protocol, SCLK is used to initiate both reading and writing of data.

In an M95256-DFCS6TP/K, data can be written to a specific address by first sending a write enable command followed by the address and the data to be written. After the data has been written, a write disable command is sent to make sure the data is not accidentally overwritten. Data can be read from the same address by first sending a read command followed by the address and the data that is requested to be read.

The M95256-DFCS6TP/K also features a four-byte page write capability, allowing up to 32 individually addressed locations of data to be written at the same time. This feature is beneficial for applications that require frequent, large-scale data transfers.

Conclusion

M95256-DFCS6TP/K is a family of low-power, 1.8V serial SPI (Serial Peripheral Interface) EEPROMs by STMicroelectronics. It offers 32K-bit, 64K-bit, 128K-bit, 256K-bit and 512K-bit memory densities, as well as fast access times, 4KB minimum sector erase, 10-year minimum data retention, and a low-voltage interface. Its working principle lies in the serial memory protocol SPI. Due to the SPIs wide range of features, M95256-DFCS6TP/K is suitable for storage applications, consumer products, hazard prevention, digital surveillance, automobile electronics, portable medical and industrial automation.