25AA640A-I/WF16K

Series:	--
Packaging:	Tray
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:	1.8 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	Die
Supplier Device Package:	Die

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25AA640A-I/WF16K     Memory

The 25AA640A-I/WF16K is a new type of memory device designed to store data and other information. It is part of a family of memory devices called EEPROMs, which stands for electrically erasable programmable read-only memory. It is specifically designed to provide high-density, non-volatile storage of data that is read frequently and written far less often.The 25AA640A-I/WF16K is a 6-pin, 64-kbit serial EEPROM memory chip, which is an 8-pin SOIC package. It has a 5MHz clock rate and a 1 MHz interface communication rate. It is a low-voltage device, operating from a single 2.7 to 5.5-volt power supply with various standby and suspend modes to further reduce the power consumption.The 25AA640A-I/WF16K is suited for many applications, including automotive and industrial operations involving the control and management of data. It is suitable for applications such as real-time clock systems, electronic ticketing, access control and security systems. The device is also ideal for embedded applications, such as flash file systems, personal communication and home automation.The 25AA640A-I/WF16K uses a serial interface to transfer data across to a host system at a rate of 1MHz. It is based on a three-wire serial protocol, with two communication lines, SDA and SCL, and a dedicated power line, VCC. It features an in-built sequential read/write capability, which eliminates the need for complex microcontroller code and reduces the power consumption of the system. It also has an enable-pin, allowing for the selection and deselection of the device for communication purposes.The 25AA640A-I/WF16K also includes a separate power line that can be used to enable the device to enter a low power mode, thus reducing the total power consumed by the overall system. This mode is activated by pulling the EN pin low. Once this mode is activated, the device is put in a sleep mode and no communication is allowed until the EN pin is pulled high again.In terms of security, the 25AA640A-I/WF16K memory chip utilizes an write- protect feature (WP), which allows the user to lock certain areas of the chip, preventing any data from being written to it. This feature prevents any accidental overwriting of data, helping to secure the data stored in the EEPROM.Additionally, the 25AA640A-I/WF16K operates over a wide temperature range from -40 to +85°C, making it suitable for use in adverse conditions.Overall, the 25AA640A-I/WF16K memory device is a reliable and energy-efficient device for the storage of data, particularly suitable for embedded applications due to its high-density and non-volatile nature.

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