AT29C020-90TU-T

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The AT29C020-90TU-T chip is a popular choice for embedded system designs because of its relatively implementation-friendly form factor and low cost. As an embedded system memory chip, it can be used to store data, programs and other data which is used to facilitate its operations. The chip is a CMOS, 8K x 8bit, 2Mbit is mask-programmable electrically erasable programmable read-only memory (EEPROM). This article discusses the application field and working principle of the AT29C020-90TU-T.

Application Field of AT29C020-90TU-T

The AT29C020-90TU-T has a wide range of applications which include use in multiple microcontroller-based embedded systems for data storage, program execution and real-time data acquisition. The AT29C020-90TU-T is ideal for designs which require low cost, flexibility and high reliability. It is also suitable for use in flat-panel displays, printers, and a variety of other applications. The EEPROM can also be used in automotive, industrial, and Military defense systems.

Working Principle of AT29C020-90TU-T

The AT29C020-90TU-T is a mask-programmable EEPROM which uses two technologies to access data. First, the chip utilizes the I2C bus-level protocol to read and write data. Secondly, it employs a pseudo asynchronous protocol to read and write data. The chip contains two processor-controllable 8-bit registers, the identifier and data registers.

The I2C bus-level protocol is typically used to read and write large blocks of data. The pseudo-asynchronous protocol is normally used to read and write small blocks of data. This protocol operates in four modes: read, write, erase and sleep. In read mode, data can be read from the chip. In write mode, the data can be written to the chip. In erase mode, entire sectors or blocks of the chip can be erased. Finally, in sleep mode, the chip can be put into a low power state.

Conclusion

To conclude, the AT29C020-90TU-T is a popular choice for embedded system designs due to its relatively implementation-friendly form factor and low cost. It is also suitable for a variety of applications including automotive, industrial, and Military defense systems. The chip utilizes two techniques, the I2C bus-level protocol and pseudo asynchronous protocol, to read and write data. This article discussed the application field and working principle of the AT29C020-90TU-T chip.

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