25LC128T-H/SN

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The 25LC128T-H/SN is an Integrated Circuit (IC) designed to act as an electrically erasable programmable read only memory (EEPROM) that is capable of storing 128 kilobits (Kb) of data and is operated by the low-voltage Serial Peripheral Interface (SPI) protocol. It has a wide range of applications in many different areas of electronics and is used in embedded systems, microprocessors, real-time clocks, sensors and in other electronic storage applications

Application Field of 25LC128T-H/SN

The 25LC128T-H/SN is a versatile memory IC that is well suited for a wide range of applications, including medical and laboratory devices, robots, communications systems, and other embedded systems that require the storage of data. It is a commonly used IC in embedded projects like FPGAs, microcontrollers and support programs. It can also be used for storing user-defined data in numerous devices including alarm systems, security systems and keypads. This type of non-volatile memory is popularly used in applications where data needs to be stored permanently or information that is frequently accessed.

Working Principle of 25LC128T-H/SN

The 25LC128T-H/SN is an EEPROM device with a capacity of 128 Kbit. Its memory cells are arranged in a grid of rows and columns. Each cell can store one bit of data (1 or 0). This type of memory requires only one signal line for making the data transfers. This signal line is known as the SPI or Serial Peripheral Interface. The device is connected to a microcontroller through four signal wires, including one for clock (CLK), one for write/read (W/R), one for chip select (CS) and one for data in (DI) and data out (DO).

While accessing the memory, the microcontroller first sends a group of commands as one byte to the 25LC128T-H/SN device. This byte contains three pieces of information, including the type of data to be saved or read, the address of the data to be saved or read, and the size of data to be saved or read. After that, the microcontroller sends the data to be written to the memory or data read from the memory. This data is sent to the memory using the SPI protocol. The data is then stored in the memory cell according to the address sent in the command byte. When writing data, the 25LC128T-H/SN device performs a write cycle in which it writes the new data to the memory cell. When reading data, the device reads the data from the memory cell according to the address sent in the command byte and sends it to the microcontroller.

The 25LC128T-H/SN device requires the supply of current in order to perform its operations. It requires very low power in order to operate and the maximum power consumed by the device is 10 mA. It supports a wide range of temperatures and its working temperature range is -40 to +85 degree Celsius. It also has a stand-by mode which is used to save power when the device is not used. The device also has an auto-erase function which can be used to automatically erase the contents of memory cells when they are not being used. This is an useful feature that can help conserve power and improve the device\'s overall performance.

The 25LC128T-H/SN is a versatile memory IC whose wide range of applications and ease of use has made it one of the most popular memory ICs on the market today. Its low voltage and low power requirements make it an ideal option for embedded systems and other applications that require data storage, and its robust design ensures that it can handle a wide range of temperatures and harsh environments.

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