AT49BV3218-11CI

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The AT49BV3218-11CI is a type of memory that stores data in non-volatile memory. It is a 4-Mbit (512K × 8) Serial CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory) with a two-wire interface, which supports write and read operations for memory. It is a low-susceptibility IC used for data storing in a wide range of applications with an extended temperature range from -40°C to +125°C.

AT49BV3218-11CI supports write and read operations, and also supports multiple read and write operations with a single instruction. It has a built-in microcontroller, allowing data transfers between the internal memory and external memory. The chip has five different operating modes, including read, write, program, erase, and burst read.

AT49BV3218-11CI is used for data storage in embedded systems, industrial automation, automotive, consumer electronics and other industrial applications. Its high reliability and long life provide system designers with an excellent solution for mission-critical applications.

Working principle: AT49BV3218-11CI relies on a two-wire interface for communication with its host controller. The instruction and data packets are transmitted and received via the same two wires. The two wires used for communication are the Data/Control and Clock signals. The data is transferred in 8-bit bytes, with the first instruction byte indicating the instructions to be executed.

The instructions supported by AT49BV3218-11CI include data read and write, program, erase, and burst read. During a write operation, the Data/Control signal is used to transfer the data to be written, while the Clock signal is used to synchronize the transmission of the data. The data is then stored in the internal memory and can be read out as required. In a read operation, the Data/Control signal is used to transfer the data from the memory, while the Clock signal is used to synchronize the transmission of the data.

During a program operation, the data to be programmed is first written to the internal memory, then the chip will start to program the data. During an erase operation, all the data stored in the memory will be erased. In the burst read operation, the data stored in the memory is read out in bursts.

AT49BV3218-11CI is also equipped with a self-timed erase and program operation, which can ensure that the system stays in a quiescent state during the erase and program operation. The chip also has multiple layers of on-board protection against data corruption, including cyclic redundancy checks (CRC), parity check, and ECC.

The AT49BV3218-11CI is a versatile and reliable type of memory that can perform a variety of functions in a wide range of applications, making it an ideal solution for mission-critical applications. Its ability to handle writes and reads of 8-bit bytes and its wide temperature range make it ideal for embedded systems, industrial automation, automotive, consumer electronics and other industrial applications.

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