参数资料
| 型号： | DS2431+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/27页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 1KBIT TO92-3 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 1K（256 x 4） |
| 接口： | 1 线 串行 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | TO-226-3、TO-92-3（TO-226AA）成形引线 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页当前第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
DS2431
1024-Bit, 1-Wire EEPROM
POLYNOMIAL = X 8 + X 5 + X 4 + 1
1ST
STAGE
2ND
STAGE
3RD
STAGE
4TH
STAGE
5TH
STAGE
6TH
STAGE
7TH
STAGE
8TH
STAGE
X 0
X 1
X 2
X 3
X 4
X 5
X 6
X 7
X 8
INPUT DATA
Figure 4. 1-Wire CRC Generator
Memory Access
Data memory and registers are located in a linear
address space, as shown in Figure 5. The data memo-
ry and the registers have unrestricted read access.
The DS2431 EEPROM array consists of 18 rows of 8
bytes each. The first 16 rows are divided equally into
four memory pages (32 bytes each). These four pages
are the primary data memory. Each page can be indi-
vidually set to open (unprotected), write protected, or
EPROM mode by setting the associated protection
byte in the register row. As a factory default, the entire
data memory is unprotected and its contents are unde-
fined. The last two rows contain protection registers
and reserved bytes. The register row consists of 4 pro-
tection control bytes, a copy-protection byte, the facto-
ry byte, and 2 user byte/manufacture ID bytes. The
manufacturer ID can be a customer-supplied identifi-
cation code that assists the application software in
identifying the product the DS2431 is associated with.
ADDRESS RANGE
0000h to 001Fh
0020h to 003Fh
0040h to 005Fh
0060h to 007Fh
0080h*
0081h*
0082h*
0083h*
0084h*
0085h
0086h
0087h
TYPE
R/(W)
R/(W)
R/(W)
R/(W)
R/(W)
R/(W)
R/(W)
R/(W)
R/(W)
R
R/(W)
R/(W)
DESCRIPTION
Data Memory Page 0
Data Memory Page 1
Data Memory Page 2
Data Memory Page 3
Protection Control Byte Page 0
Protection Control Byte Page 1
Protection Control Byte Page 2
Protection Control Byte Page 3
Copy Protection Byte
Factory Byte. Set at Factory.
User Byte/Manufacturer ID
User Byte/Manufacturer ID
PROTECTION CODES
—
—
—
—
55h: Write Protect P0; AAh: EPROM Mode P0;
55h or AAh: Write Protect 80h
55h: Write Protect P1; AAh: EPROM Mode P1;
55h or AAh: Write Protect 81h
55h: Write Protect P2; AAh: EPROM Mode P2;
55h or AAh: Write Protect 82h
55h: Write Protect P3; AAh: EPROM Mode P3;
55h or AAh: Write Protect 83h
55h or AAh: Copy Protect 0080h:008Fh, and Any
Write-Protected Pages
AAh: Write Protect 85h, 86h, 87h;
55h: Write Protect 85h; Unprotect 86h, 87h
—
—
0088h to 008Fh — Reserved
—
*Once programmed to AAh or 55h this address becomes read only. All other codes can be stored, but neither write protect the
address nor activate any function.
Figure 5. Memory Map
Maxim Integrated
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2431X | 功能描述:电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS2431X+ | 功能描述:电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS2431X+S | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1024-Bit, 1-Wire EEPROM |
| DS2431X+U | 功能描述:电可擦除可编程只读存储器 1024-BIT 1-WIRE 电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS2431X-S | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1024-Bit, 1-Wire EEPROM |
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