AT45BR3214B datasheet(1/40 Pages) ATMEL

Part #	AT45BR3214B

Description	32-MEGABIT DATAFLASH 4-MEGABIT SRAM STACK MEMORY

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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Features

• 32-Mbit DataFlash and 4-Mbit SRAM

• Single 62-ball (8 mm x 12 mm x 1.2 mm) CBGA Package

• 2.7V to 3.3V Operating Voltage

DataFlash

• Single 2.7V to 3.3V 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

• Industrial Temperature Range

SRAM

• 4-megabit (256K x 16)

• 2.7V to 3.3V V

CC

• 70 ns Access Time

• Fully Static Operation and Tri-state Output

• 1.2V (Min) Data Retention

• Industrial Temperature Range

32-megabit

DataFlash®

+ 4-megabit

SRAM

Stack Memory

AT45BR3214B

Rev. 3356B–DFLASH–10/04

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