Adesto AT25DF641A
The AT25DF641A is a 2.7V minimum, serial-interface Flash memory ideally suited for a wide variety of high-volume consumer-based applications in which program code is shadowed from Flash memory into embedded or external RAM for execution. The flexible erase architecture of the AT25DF641A, with its erase granularity as small as 4KB, 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.FEATURES
DATASHEET● Single 2.7V - 3.6V supply
● Serial Peripheral Interface (SPI) compatible
● Supports SPI Modes 0 and 3
● Supports RapidS™ operation
● Supports Dual-Input Program and Dual-Output Read
● Very high operating frequencies
● 100MHz for RapidS
● 85MHz for SPI
● Clock-to-output time (tV) of 5ns maximum
● Flexible, optimized erase architecture for code + data storage applications
● Uniform 4KB, 32KB, and 64KB Block Erase
● Full Chip Erase
● Individual sector protection with Global Protect/Unprotect feature
● 128 Sectors of 64KB each
● Hardware controlled locking of protected sectors via WP pin
● Sector Lockdown
● Make any combination of 64KB sectors permanently read-only
● 128-byte One-Time Programmable (OTP) Security Register
● 64 bytes factory preprogrammed
● 64 bytes user programmable
● Flexible programming
● Byte/Page Program (1 to 256 bytes)
● Fast program and erase times
● 2.5ms typical Page Program (256 bytes) time
● 75ms typical 4KB Block Erase time
● 300ms typical 3...