SST39LF040-45-4C-B3KE

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The SST39LF040-45-4C-B3KE memory is an integrated circuit comprised of four 1024 Kbit (2 Mbit) flash memory arrays. It is commonly used in applications requiring secure and non-volatile storage of limited data. Its use is widespread in a variety of areas, particularly in secure embedded systems containing essential or sensitive data.

The SST39LF040-45-4C-B3KE is fabricated using a 0.35μ CMOS process to provide a low power product. The SST39LF040-45-4C-B3KE is available in a 42 pin PQFP package.

The SST39LF040-45-4C-B3KE memory has two modes of operation: Read mode for the reading of data from the address and data lines and the Program/Erase (P/E) mode for the programming, erasing and blocking of program bits and program blocks.

In Read mode, the SST39LF040-45-4C-B3KE memory provides access to the data stored in the memory. This is done by connecting the address lines to the address bus of a microcontroller or other address driven device. Upon receipt of a valid address, the data is output to the data bus.

In Program/Erase mode, the SST39LF040-45-4C-B3KE memory utilizes the embedded hard-wired logic to execute programming and erasing. Programming of the SST39LF040-45-4C-B3KE memory involves the writing of data to an address location. The programming command, issued by the controller, sets the logic state of the Program Input pin. This sets the Program/Erase circuit into the program mode and allows writing of the data contained in the Data Input pins. The programming operation is terminated by setting the Program Input pin to the low state.

In order to erase its registers, the SST39LF040-45-4C-B3KE utilizes the Erase command, which sets the logic state of the Erase Input pin. This places the Program/Erase circuit into the erase mode and sets the registers of all memory cells to the 0 type state. The erase operation is terminated by setting the Erase Input pin to the low state.

The SST39LF040-45-4C-B3KE memory can also be configured to block program bits. This is done by setting the logic level of the Block Input pin to the high state. This impairs the programming of address locations that have been chosen prior to their block (set program) command.

The major application fields of the SST39LF040-45-4C-B3KE memory are information systems, secure embedded systems and system-on-chip solutions, automotive applications and other applications requiring high data integrity. The memory offers non-volatile storage, secure data storage, long-term data retention, low power dissipation and wide temperature operation, making it suitable for these types of applications.

In conclusion, the SST39LF040-45-4C-B3KE memory is an integrated circuit containing 4 1024 Kbit (2 Mbit) flash memory arrays. It is suitable for applications requiring secure and non-volatile storage of limited data. The major application fields of the SST39LF040-45-4C-B3KE memory are information systems, secure embedded systems and system-on-chip solutions, automotive applications, and other applications requiring data integrity. The memory offers low power dissipation and wide temperature operation, making it suitable for these types of applications.

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