The AT49F040A-70JU is a Flash memory chip manufactured by Atmel (which was acquired by Microchip). The following are its main technical parameters:
1. Storage capacity: 4Mbit, that is, 512K bytes of storage space, with a large storage capacity.
2. Storage unit: Each storage unit has a data width of 8 bytes (64 bits), which can store a large amount of data.
3. Access time: Read time is 70ns, write time is 120ns, with fast access speed.
4. Interface type: SPI interface is adopted, which is a serial peripheral interface with high data transmission rate and is often used to connect microcontrollers and various peripherals.
5. Voltage range: The working voltage range is 2.7V to 3.6V, which can work stably in a wide voltage range.
6. Package type: PLCC32 package is adopted, which is a common package form for easy installation and connection.
In addition, the AT49F040A-70JU also has the advantages of low power consumption, low voltage, low weight, high reliability, and long life. In the case of sudden power failure, it can save data without loss and ensure the security of data. Due to its high performance and reliability, the AT49F040A-70JU is widely used in a variety of applications where data needs to be stored, such as intelligent instruments, communication equipment, industrial control, etc.
