Description
The AT45DB321C is an SPI compatible, serial-interface Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data storage applications. The AT45DB321C supports a 4-wire serial interface known as RapidS for applications requiring very high speed operations.

FEATUREs
• Single 2.7 - 3.6V Supply
• RapidS™ Serial Interface: 40 MHz Maximum Clock Frequency (SPI Modes 0 and 3 Compatible for Frequencies Up to 33 MHz)
• Page Program
    – 8192 Pages (528 Bytes/Page)
• Automated Erase Operations
    – Page Erase 528 Bytes
    – Block Erase 4,224 Bytes
• Two 528-byte SRAM Data Buffers – Allows Receiving of Data while Reprogramming the Flash Array
• Continuous Read Capability through Entire Array
    – Ideal for Code Shadowing Applications
• Low-power Dissipation
    – 10 mA Active Read Current Typical – Serial Interface
    – 8 µA CMOS Standby Current Typical
• Hardware and Software Data Protection Features
    – Individual Sector Locking
• Security: 128-byte Security Register
    – 64-byte User Programmable Space
    – Unique 64-byte Device Identifier
• JEDEC Standard Manufacturer and Device ID Read
• 100,000 Program/Erase Cycles per Page
• Data Retention – 20 years
• Commercial and Industrial Temperature Ranges
• Green (Pb/Halide-free) Packaging Options