Atmel AT45DB011B
The AT45DB011B 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 1,081,344 bits of memory are organized as 512 pages of 264 bytes each. The buffer allows receiving of data while a page in the main memory is being reprogrammed.FEATURES
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● 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) – 512 Pages (264 Bytes/Page) Main Memory Supports Page and Block Erase Operations One 264-byte SRAM Data Buffer Continuous Read Capability through Entire Array – Ideal for Code Shadowing
APPLICATIONS
Fast Page Program Time – 7 ms Typical 120 µs Typical Page to Buffer Transfer Time Low Power Dissipation – 4 mA Active Read Current Typical – 2 µA CMOS Standby Current Typical Hardware Data Protection Feature 100% Compatible with AT45DB011 Commercial and Industrial Temperature Ranges Green (Pb/Halide-free/RoHS Compliant) Packaging Options 1-megabit 2.7-volt Only DataFlash® AT45DB011BDESCRIPTION
In addition to the main memory, the AT45DB011B also contains one SRAM data buffer of 264 bytes. EEPROM emulation (bit or byte alterability) is easily handled with a self-contained three step Read-Modify-Write operation.