AT45DB041B Datasheet | Atmel

Features - - - - - - - - - - - - Single 2.5V - 3.6V or 2.7V - 3.6V Supply Serial Peripheral Interface (SPI) patible 20 MHz Max Clock Frequency Page Program Operation - Single Cycle Reprogram (Erase and Program) - 2048 Pages (264 Bytes/Page) Main Memory Supports Page and Block Erase Operations Two 264-byte SRAM Data Buffers - Allows Receiving of Data while Reprogramming of Nonvolatile Memory Continuous Read Capability through Entire Array Low Power Dissipation - 4 m A Active Read Current Typical - 2 µA CMOS Standby Current Typical Hardware Data Protection Feature 100% patible to AT45DB041 and AT45DB041A 5.0V-tolerant Inputs: SI, SCK, CS, RESET, and WP Pins mercial and Industrial Temperature Ranges 4-megabit 2.5-volt Only or 2.7-volt Only Data Flash® AT45DB041B Description The AT45DB041B is a 2.5-volt or 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 4,325,376 bits of memory are organized as 2048 pages of 264 bytes each. In addition to the main memory, the AT45DB041B also contains two SRAM data buffers of 264 bytes each. The buffers allow receiving of data while a page in the main memor y is being reprogrammed, as well as reading or writing a continuous data stream. EEPROM emulation (bit or byte alterability) is easily handled with a self- Pin Configurations Pin Name CS SCK SI SO WP RESET RDY/BUSY Function Chip Select Serial Clock Serial Input Serial Output Hardware Page Write Protect Pin Chip Reset Ready/Busy GND NC NC CS SCK SI SO NC NC NC NC NC NC NC RDY/BUSY RESET WP NC NC VCC GND NC NC NC CS SCK SI SO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TSOP Top View Type 1 28 27 26 25 24 23 22 21 20 19 18 17 16 15 NC NC NC NC NC NC NC NC NC NC NC NC NC NC 28-SOIC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC NC NC WP RESET RDY/BUSY NC NC NC NC NC NC NC NC CBGA Top View through Package 1 2 3 NC NC VCC 8-SOIC SI SCK RESET CS 1...