Adesto Technologies AT25DF021
The AT25DF021 is a serial interface Flash memory device designed for use in a wide variety of high-volume consumer based appl ications in which program code is shadowed from Flash memory into embedded or external RAM for execution. The flexible erase architecture of the AT25DF021, 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. By optimizing the size of the physical sectors and erase blocks, the memory space can be used much more efficiently.| Part No. | AT25DF021 |
|---|---|
| Datasheet | AT25DF021 Download |
| Manufacturer |  Adesto Technologies |
| Description | 2-Megabit 2.3-volt or 2.7-volt Minimum SPI Serial Flash Memory |
| Buy | Stock & Price |
FEATURES
● Single 2.3V - 3.6V or 2.7V - 3.6V Supply● Serial Peripheral Interface (SPI) Compatible – Supports SPI Modes 0 and 3
● 66 MHz Maximum Operating Frequency
● – Clock-to-Output (tV) of 6 ns 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 – Four Sectors of 64 Kbytes Each Hardware Controlled Locking of Protected Sectors via WP Pin 128-Byte Programmable OTP Security Register Flexible Programming – Byte/Page Program (1 to 256 Bytes) Fast Program and Erase Times – 1.0 ms Typical Page Program (256 Bytes) Time – 50 ms Typical 4-Kbyte Block Erase Time – 250 ms Typical 32-Kbyte Block Erase Time – 450 ms Typical 64-Kbyte Block Erase Time Automatic Checking and Reporting of Erase/Program Failures JEDEC Standard Manufacturer and Device ID Read Methodology Low Power Dissipation – 7...
