Atmel AT25DF641A
the AT25DF641A, with its erase granularity as small as 4-Kbytes, makes it ideal for data storage as well, eliminating the need for additional data storage EEPROM devices. The physical sectoring and the erase block sizes of the AT25DF641A have been optimized to meet the needs of today's code and data storage applications. By optimizing the size of the physical sectors and erase blocks, the memory space can be used much more efficiently.FEATURES
● Single 2.7V - 3.6V Supply● Serial Peripheral Interface (SPI) Compatible – Supports SPI Modes 0 and 3 – Supports Atmel RapidS Operation – Supports Dual-Input Program and Dual-Output Read Very High Operating Frequencies – 100MHz for RapidS – 85MHz for SPI – Clock-to-Output (tV) of 5ns Maximum Flexible, Optimized Erase Architecture for Code + Data Storage
APPLICATIONS
– Uniform 4-Kbyte Block Erase – Uniform 32-Kbyte Block Erase – Uniform 64-Kbyte Block Erase – Full Chip Erase Individual Sector Protection with Global Protect/Unprotect Feature – 128 Sectors of 64-Kbytes Each Hardware Controlled Locking of Protected Sectors via WP Pin Sector Lockdown – Make Any Combination of 64-Kbyte Sectors Permanently Read-Only 128-Byte Programmable OTP Security Register Flexible Programming – Byte/Page Program (1- to 256-Bytes) Fast Program and Erase Times – 1.0ms Typical Page Program (256-Bytes) Time – 50ms Typical 4-Kbyte Block Erase Time – 250ms Typical 32-Kbyte Block Erase Time – 400ms Ty...