Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	8Kb (1K x 8)
Clock Frequency:	10MHz
Write Cycle Time - Word, Page:	5ms
Memory Interface:	SPI
Voltage - Supply:	1.8 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	8-TSSOP
Base Part Number:	25AA080A

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25AA080A-I/ST application field and working principle

Overview

The 25AA080A-I/ST is a serial 8-bit EEPROM device from Microchip Technology. With some advantages over other types of non-volatile memory, such as a wide operating voltage range, byte-level write operations, and integrated ESD protection, the 25AA080A is particularly well-suited for embedded applications where space and power are at a premium. The 25AA080A falls under the category of memory devices, and can be used in a variety of embedded applications.

Application Fields

The 25AA080A is particularly well-suited for embedded applications, mainly those where space and power are at a premium. The variety of features it offers, such as low-power operation, 1.8V to 5.5V operation, and integrated ESD protection make it ideal for use in battery-powered applications. It also offers 1,000,000 write cycles, making it suitable for use in applications where data needs to be stored for a long period of time. In embedded applications, the 25AA080A can be used for a variety of purposes. It can be used to store configuration information, device settings and status, or data that needs to be retained even without power. It is also often used in systems where data must be retrieved quickly, such as automotive systems.

Working Principle

The 25AA080A is a serial 8-bit EEPROM device that relies on an external clock and serial data inputs (SI and SO) to drive the memory and read or write data. Before any data can be written or read, the device must be selected by applying a high voltage to the CS pin. To write data, data is written to the SI pin by sending a start bit followed by eight bits of data, with the Most Significant Bit (MSB) first. Then, a write enable bit is sent, followed by an acknowledge bit which serves as a confirmation that the write command has been received. To read data, a read control byte is sent to the device, whereupon the device sends 8-bits of data to the SO pin with the MSB first. The device also sends a write inhibit bit, which serves as a confirmation that the read command has been received. The 25AA080A also features a write protect pin, which can be used to enable or disable writing to the device. Also, the device can be placed into sleep mode to reduce the power consumption by connecting the CP pin to VDD.

Conclusion

The 25AA080A-I/ST is a serial 8-bit EEPROM device from Microchip Technology. It is particularly well-suited for embedded applications where space and power are at a premium, as it offers a wide operating voltage range, byte-level write operations, and integrated ESD protection. With a million write cycles and just 8 pins, the 25AA080A is a powerful yet versatile device, making it ideal for embedded applications that require data storage and retrieval.

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