AT45BR3214B_14 Datasheet, PDF (1/40 Pages) ATMEL Corporation – 32-Mbit DataFlash and 4-Mbit SRAM

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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