AT25DF041A-MH-T datasheet(4/41 Pages) ATMEL

Teilenummer	AT25DF041A-MH-T

Bauteilbeschribung	4-megabit 2.3-volt or 2.7volt Minimum SPI Serial Flash Memory

PDF	41 Pages

Scroll/Zoom	100%

Hersteller	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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4 / 41 page

3668D–DFLASH–9/08

AT25DF041A

Block Diagram

Memory Array

To provide the greatest flexibility, the memory array of the AT25DF041A can be erased in four

levels of granularity including a full chip erase. In addition, the array has been divided into phys-

ical sectors of various sizes, of which each sector can be individually protected from program

and erase operations. The sizes of the physical sectors are optimized for both code and data

storage applications, allowing both code and data segments to reside in their own isolated

regions. Figure 4-1 on page 5 illustrates the breakdown of each erase level as well as the break-

down of each physical sector.

FLASH

MEMORY

ARRAY

Y-GATING

SCK

Y-DECODER

X-DECODER

I/O BUFFERS

AND LATCHES

CONTROL AND

PROTECTION LOGIC

SRAM

DATA BUFFER

INTERFACE

CONTROL

AND

LOGIC

AT25DF041A-MH-T Datenblatt(PDF) 4 Page - ATMEL Corporation