AT45DB021 - ATMEL Corporation

AT45DB021 2-Megabit 2.7-volt Only Serial DataFlash

The AT45DB021 is a 2.7-volt only, serial interface Flash memory suitable for in-system reprogramming. Its 2,162,688 bits of memory are organized as 1024 pages of 264-bytes each. In addition to the main memory, the AT45DB021 also contains two SRAM data buffers of 264-bytes each. The buffers allow receiving of data while a page in the main memory is being repr.

Features

• Single 2.7V - 3.6V Supply
• Serial Interface Architecture
• Page Program Operation
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  – Single Cycle Reprogram (Erase and Program)
  – 1024 Pages (264 Bytes/Page) Main Memory Two 264-Byte SRAM Data Buffers
  – Allows Receiving of Data while Reprogramming of Non-Volatile Memory Internal Program and Control Timer Fast Page Program Time
  – 7 ms Typical 120 µs Typical Page to Buffer Transfer Time Low Power Dissipation
  – 4 mA Active Read Current Typical
  – 5 µA CMOS Standby Current Typical 5 MHz Max Clock Frequency Hardware Data Protection Feature Serial Peripheral Interface (SPI) Comp.