25LC640AX-E/ST

Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	64Kb (8K x 8)
Clock Frequency:	10MHz
Write Cycle Time - Word, Page:	5ms
Memory Interface:	SPI
Voltage - Supply:	2.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	8-TSSOP
Base Part Number:	25LC640AX

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The 25LC640AX-E/ST is a type of non-volatile memory or EEPROM device, which stands for Electrically Erasable Programmable Read-Only Memory. This type of memory is often used in applications where long-term data storage is needed that can be accessed and written to multiple times. The 25LC640AX-E/ST is unique in that it has double the capacity of the standard EEPROM devices at 64Kbits of storage per chip.

Application Field

The 25LC640AX-E/ST is most commonly used to store configurations in a product, so that it can be easily customized for different customers or applications. This type of memory is also frequently used in embedded systems to store key data that must be retained even in the event of a power loss. It is also used for data logging and for updating firmware and operating system data.

Working Principle

The 25LC640AX-E/ST works on the principle of storing data in a way that is electrically erasable and is not lost when power is disconnected. The memory chip is organized into sectors, which contain 4,096 bytes each. In order to access or write to a sector, the chip provides a system of command codes which the processor must use in order to know wish sector to access and how to access it. Once the sector is accessed, the data can be written to or read from the chip.

How it Works

The 25LC640AX-E/ST works by responding to command codes send by a microprocessor or other controlling device. These commands define how the memory should be accessed and read. For example, when the chip is told to write data to it, the commands tell it where in the memory it should write the data. These commands also provide instructions on how the data should be written, such as with what voltage or timing the data should be written.When the chip is told to read data, it follows a similar process, looking for the command codes that tell it where in the memory it should read from and how fast the data should be read. Once the commands are received and read, the processor will then search for the requested data and copy it into the chip.

Conclusion

The 25LC640AX-E/ST is a type of non-volatile memory, which stands for Electrically Erasable Programmable Read-Only Memory, and is often used for applications where long-term data storage is needed. It has an increased capacity compared to other EEPROM devices, providing 64Kbits of storage per chip. The chip works by responding to command codes which the processor sends, telling it where in the memory to read or write data and how the data should be handled. It is used in a variety of applications, such as storing configurations and updating firmware.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description