- 您现在的位置：买卖IC网 > PDF目录381454 > AT45DB041D-SU (ATMEL CORP) 4-megabit 2.5-volt or 2.7-volt DataFlash PDF资料下载
参数资料
| 型号： | AT45DB041D-SU |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 4-megabit 2.5-volt or 2.7-volt DataFlash |
| 中文描述： | 4M X 1 FLASH 2.7V PROM, PDSO8 |
| 封装： | 0.208 INCH, GREEN, PLASTIC, EIAJ, SOIC-8 |
| 文件页数： | 4/53页 |
| 文件大小： | 1085K |
| 代理商： | AT45DB041D-SU |
第1页第2页第3页当前第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页
4
3595H–DFLASH–03/07
AT45DB041D
4.
Memory Array
To provide optimal flexibility, the memory array of the AT45DB041D is divided into three levels of
granularity comprising of sectors, blocks, and pages. The “Memory Architecture Diagram” illus-
trates the breakdown of each level and details the number of pages per sector and block. All
program operations to the DataFlash occur on a page-by-page basis. The erase operations can
be performed at the chip, sector, block or page level.
Figure 4-1.
Memory Architecture Diagram
5.
Device Operation
The device operation is controlled by instructions from the host processor. The list of instructions
and their associated opcodes are contained in
Tables 15-1 through
15-7
. A valid instruction
starts with the falling edge of CS followed by the appropriate 8-bit opcode and the desired buffer
or main memory address location. While the CS pin is low, toggling the SCK pin controls the
loading of the opcode and the desired buffer or main memory address location through the SI
(serial input) pin. All instructions, addresses, and data are transferred with the most significant
bit (MSB) first.
Buffer addressing for the DataFlash standard page size (264 bytes) is referenced in the
datasheet using the terminology BEA8 - BFA0 to denote the 9 address bits required to designate
a byte address within a buffer. Main memory addressing is referenced using the terminology
PA10 - PA0 and BA8 - BA0, where PA10 - PA0 denotes the 11 address bits required to desig-
nate a page address and BA8 - BA0 denotes the 9 address bits required to designate a byte
address within the page.
For the “Power of 2” binary page size (256 bytes), the Buffer addressing is referenced in the
datasheet using the conventional terminology BFA7 - BFA0 to denote the 8 address bits
required to designate a byte address within a buffer. Main memory addressing is referenced
using the terminology A18 - A0, where A18 - A8 denotes the 11 address bits required to desig-
nate a page address and A7 - A0 denotes the 8 address bits required to designate a byte
address within a page.
S
ECTOR 0a =
8
Pa
g
e
s
2,04
8
/2,112 byte
s
S
ECTOR 0b = 24
8
Pa
g
e
s
6
3
,4
88
/65,472 byte
s
Block = 2,04
8
/2,112 byte
s
8
Pa
g
e
s
S
ECTOR 0a
S
E
Pa
g
e = 256/264 byte
s
PAGE 0
PAGE 1
PAGE 6
PAGE 7
PAGE
8
PAGE 9
PAGE 2,046
PAGE 2,047
B
PAGE 14
PAGE 15
PAGE 16
PAGE 17
PAGE 1
8
B
S
ECTOR ARCHITECTURE
BLOCK ARCHITECTURE
PAGE ARCHITECTURE
BLOCK 0
BLOCK 1
BLOCK
3
0
BLOCK
3
1
BLOCK
3
2
BLOCK
33
BLOCK 254
BLOCK 255
BLOCK 62
BLOCK 6
3
BLOCK 64
BLOCK 65
S
E
S
ECTOR 7 = 256 Pa
g
e
s
65,5
3
6/67,5
8
4 byte
s
BLOCK 2
S
ECTOR 1 = 256 Pa
g
e
s
65,5
3
6/67,5
8
4 byte
s
S
ECTOR 6 = 256 Pa
g
e
s
65,5
3
6/67,5
8
4 byte
s
S
ECTOR 2 = 256 Pa
g
e
s
65,5
3
6/67,5
8
4
byte
s
相关PDF资料 |
PDF描述 |
|---|---|
| AT45DB041D-SU-2.5 | 4-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB080 | KJL SERIES I |
| AT45DB080-RC | 8-Megabit 2.7-volt Only Sequential Access Parallel I/O DataFlash |
| AT45DB080-RI | 8-Megabit 2.7-volt Only Sequential Access Parallel I/O DataFlash |
| AT45DB080-TC | 8-Megabit 2.7-volt Only Sequential Access Parallel I/O DataFlash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT45DB041D-SU SL300 | 制造商:Adesto Technologies Corporation 功能描述: |
| AT45DB041D-SU SL383 | 制造商:Adesto Technologies 功能描述:Flash Serial-SPI 3V/3.3V 4Mbit 6ns 8-Pin SOIC EIAJ T/R 制造商:Atmel Corporation 功能描述:Flash Serial-SPI 3V/3.3V 4Mbit 6ns 8-Pin SOIC EIAJ T/R 制造商:Adesto Technologies Corporation 功能描述:FLASH SERL-SPI 3V/3.3V 4MBIT 6NS 8SOIC EIAJ - Tape and Reel |
| AT45DB041D-SU SL514 | 制造商:Adesto Technologies Corporation 功能描述: |
| AT45DB041D-SU-2.5 | 功能描述:闪存 4M 2.5-3.6V 50Mhz Serial 闪存 RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| AT45DB041D-SU-2.5 SL383 | 制造商:Adesto Technologies Corporation 功能描述:DATAFLASH,4MBIT,SERIAL,2.7V,IND TEMP,GREEN - 2.5V,SOIC(WIDE - Tape and Reel |
发布紧急采购，3分钟左右您将得到回复。