AT26DF-041-MU ATMEL Corporation, AT26DF-041-MU Datasheet

AT26DF-041-MU

Manufacturer Part Number

AT26DF-041-MU

Description

Manufacturer

ATMEL Corporation

Datasheet

1.AT26DF041-SU.pdf (20 pages)

Specifications of AT26DF-041-MU

Case

QFN

Date_code

07+

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Features

•

1. Description

The AT26DF041 is a 3.0-volt or 2.7-volt only, serial interface Flash memory ideally

suited for a wide variety of program code- and data-storage applications. Its 4,194,304

bits of memory are organized as 2048 pages of 256 bytes each. Unlike conventional

Flash memories that are accessed randomly with multiple address lines and a parallel

interface, the DataFlash

The DataFlash supports SPI mode 0 and mode 3. The simple serial interface facili-

tates hardware layout, increases system reliability, minimizes switching noise, and

reduces package size and active pin count. The device is optimized for use in many

commercial and industrial applications where high density, low pin count, low voltage,

and low power are essential. To allow for simple in-system reprogrammability, the

AT26DF041 does not require high input voltages for programming. The device oper-

ates from a single power supply, 3.0V to 3.6V or 2.7V to 3.6V, for both the program

and read operations. The AT26DF041 is enabled through the chip select pin (CS) and

accessed via a three-wire interface consisting of the Serial Input (SI), Serial Output

(SO), and the Serial Clock (SCK).

Table 1-1.

Pin Name

SCK

Single 3.0V - 3.6V or 2.7V - 3.6V Supply

Serial Peripheral Interface (SPI) Compatible

33 MHz Max Clock Frequency

Byte Program Operation

Page Program Operation

Supports Optional Page and Block (2 KB or 4 KB) Erase Operations

Continuous Read Capability through Entire Array

Hardware Data Protection Feature for the Top 64 KB of Memory

Low Power Dissipation

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

100,000 Program/Erase Cycles Typical

Data Retention – 20 years

– 2048 Pages (256 Bytes/Page) Main Memory

– Single Cycle Reprogram Capability (Page Erase and Program)

– Ideal for Code Shadowing Applications

– 4 mA Active Read Current Typical

– 2 µA CMOS Standby Current Typical

Function

Chip Select

Serial Clock

Serial Input

Serial Output

Hardware Write

Protect Pin

Pin Configurations

uses an SPI serial interface to sequentially access its data.

GND

8-SOIC

VCC

SCK

GND

8-MLF Top View

VCC

SCK

4-megabit

3.0-volt Only or

2.7-volt Only

Serial Firmware

DataFlash

AT26DF041

For New

Designs Use

AT26F004

3495C–DFLSH–11/05

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