FM25H20-GTR

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The FM25H20-GTR is a non-volatile RAM (Random Access Memory) chip, which is designed and manufactured by the Cypress Semiconductor Corporation. The capacity of this type of RAM is 32KB, and the primary purpose is to provide power backup and data retention over a long period of time. The FM25H20-GTR is capable of operating up to 1.8V with a maximum power consumption of only 0.2 mW. It has a high endurance chip life, rated at up to 100 million write cycles, and a data retention period of up to 10 years.

The FM25H20-GTR is a perfect choice for many applications. It can be used in industrial controller applications that require extended data retention time and power backup during power outages. It is also used in medical devices and other applications requiring long-term storage of data. It is compatible with a wide variety of microcontroller families, including the popular series, such as the Atmel ATMEGA, PIC and 8051, as well as the newer Cortex families. The chip is available in both a standard SOIC-8 package, or it can be obtained in a 6-pin PDIP package.

The working principle of the FM25H20-GTR is quite simple. It consists of a memory array consisting of 32,768 bits of non-volatile RAM. To write data to the RAM, the chip uses one of two write commands, which are START and END. When the START command is issued, the chip enables the SRAM write mode and reads the address range specified by the user. After the specified address range is read, the data that is stored in the array is written to the address specified. Once this procedure is complete, the END command is issued to complete the writing process. Similarly, to read data, the START and END commands are used to enable the SRAM read mode, and the address range that is specified by the user is then read from the memory array.

In addition to the usual start and end commands, the FM25H20-GTR also provides the user with three additional write/read commands - WRITE, READ, and PAGE. The WRITE command is used to write data directly to the SRAM array, while the READ command is used to read data from the SRAM array. The PAGE command is used to enable page mode, which allows multiple write operations to the same address location. This is especially useful for applications that require large amounts of data to be written to the same address.

The FM25H20-GTR is an excellent memory solution for many applications, providing reliable, long-term storage of data. Its small size, low power consumption, and high endurance chip life make it a perfect choice for industrial and medical applications that require extended storage periods. The chip is also compatible with several popular microcontroller families, making it a versatile solution for many applications.

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