AT45DB321B - ATMEL Corporation

AT45DB321B 32-megabit 2.7-volt Only DataFlash

The AT45DB321B is a 2.7-volt only, serial interface Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications. Its 34,603,008 bits of memory are organized as 8192 pages of 528 bytes each. In a dd itio n to t he ma in me mo r y, th e AT4 5 D B3 2 1B a lso c o nt ain s two SR AM data buffers of 528 by.

Features

• Single 2.7V - 3.6V Supply
• Serial Peripheral Interface (SPI) Compatible
• 20 MHz Max Clock Frequency
• Page Program Operation
  – Single Cycle Reprogram (Erase and Program)
  – 8192 Pages (528 Bytes/Page) Main Memory
• Supports Page and Block Erase Operations
• Two 528-byte SRAM Data Buffers
  – Allows Receiving of Data while Reprogramming of Nonvolatile Memory
• Continuous Read Capability through Entire Array
  – Ideal for Code Shadowing Applications
• Low Power Dissipation
  – 4 mA Active Read Current Typical
  – 2 µA CMOS Standby Current Typical
• Hardware Data Protection Feature
• 100% Compatible t.