AT45DB321D-SU 32-megabit 2.7-volt DataFlash microwave integrated circuits holt integrated circuits

Features
• Single 2.7V - 3.6V Supply

• RapidS™ Serial Interface: 66 MHz Maximum Clock Frequency

– SPI Compatible Modes 0 and 3

• User Configurable Page Size

– 512 Bytes per Page

– 528 Bytes per Page

• Page Program Operation

– Intelligent Programming Operation

– 8,192 Pages (512/528 Bytes/Page) Main Memory

• Flexible Erase Options

– Page Erase (512 Bytes)

– Block Erase (4 Kbytes)

– Sector Erase (64 Kbytes)

– Chip Erase (32 Mbits)

Description

The AT45DB321D is a 2.7-volt, serial-interface sequential access Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications. The AT45DB321D supports RapidS serial interface for applications requiring very high speed operations. RapidS serial interface is SPI compatible for frequencies up to 66 MHz. Its 34,603,008 bits of memory are organized as 8,192 pages of 512 bytes or 528 bytes each. In addition to the main memory, the AT45DB321D also contains two SRAM buffers of 512/528 bytes each.

Block Diagram

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