Renesas Electronics Corporation Memory AT25DF081A-SH-B

The Renesas Flash Memory, part number 67AC3271, is an 8Mbit serial NOR flash memory device designed for a wide range of applications. It operates within a supply voltage range of 2.7V to 3.6V and is compatible with Serial Peripheral Interface (SPI), supporting SPI Modes 0 and 3. The device features high operating frequencies, with a maximum clock speed of 100MHz for RapidS operation and 85MHz for standard SPI, ensuring fast data access. This flash memory offers a flexible erase architecture, allowing for uniform block erases of 4KB, 32KB, and 64KB, as well as full chip erase capabilities. It includes individual sector protection with a global protect/unprotect feature, enabling secure management of data and code. The device also supports a hardware-controlled locking mechanism for protected sectors and a sector lockdown feature that can permanently set sectors to read-only. With a typical page program time of 1.0ms for 256 bytes and erase times ranging from 50ms to 400ms depending on the block size, the memory is efficient for both programming and erasing operations. It has an endurance of 100,000 program/erase cycles and a data retention period of 20 years, making it suitable for long-term applications. The device is compliant with industrial temperature ranges from -40¬8C to 85¬8C and is available in RoHS-compliant packaging options.