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Memory

The 25AA080A-I/WF15K is an 8KB electrically erasable programmable read-only memory (EEPROM) from Microchip Technology Inc. This nonvolatile EEPROM memory provides an ideal solution for nonvolatile data storage of small-scale systems and is available in a wide range of densities. The 25AA080A-I/WF15K is stored in an 8-pin shrink small outline package (SSOP) or a 8-pin dual in-line package (DIP) and can be used in a range of applications, such as automotive and automotive body-sensing systems.

Application Field

The 25AA080A-I/WF15K is suitable for a range of applications, such as automotive and industrial control, body-sensing systems, and more. It can also be used to store non-volatile data, such as settings and user data, without the need for batteries or other nonvolatile memory chips. The 25AA080A-I/WF15K can also be used in communication systems, such as cellular phones, and for storing as well as retrieving information in consumer products.

Working Principle

The 25AA080A-I/WF15K consists of a serial EEPROM array, which is organized as 8,192 8-bit words. The serial data (input) and clock (CLK) pins provide an interface to the host system. The write control is enabled by the logical complement of the write enable (WE) pin. The memory can be written and read at a rate of up to 1MHz. The 25AA080A-I/WF15K supports sequential read and write operations. The microprocessor can start a read operation by sending the start command, which then afterwards sends the data which has been read from the memory.

The 25AA080A-I/WF15K comes with an internally-generated write-protection scheme. It has an internal write protection register that can be used to control write operations while keeping read operations unrestricted. The internal write-protection register can be written when the write protection pin (WP) is tied to low logic. The 25AA080A-I/WF15K is qualified to the AEC-Q100 in order to meet the requirements of the automotive industry.

Conclusion

The 25AA080A-I/WF15K is a versatile 8KB EEPROM memory which is ideal for a range of automotive, industrial and body-sensing applications. It has an internal write protection register for protection against unintended write operations and is qualified to the AEC-Q100 for automotive applications.

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