描述 Description

The AT45DB041B is an SPI compatible 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.

特性 Features

? Single 2.5V - 3.6V or 2.7V - 3.6V Supply

? Serial Peripheral Interface (SPI) Compatible

? 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 the Flash Memory Array

? 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

? 5.0V-tolerant Inputs: SI, SCK, CS, RESET, and WP Pins

? Commercial and Industrial Temperature Ranges

? Green (Pb/Halide-free/RoHS Compliant) Package Options