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参数资料
| 型号： | DS2431P |
| 元件分类： | DRAM |
| 英文描述： | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| 中文描述： | 该CAT24FC02是一个2 KB的EEPROM的国内256个8位每字举办的串行CMOS |
| 文件页数： | 4/23页 |
| 文件大小： | 170K |
| 代理商： | DS2431P |
DS2431: 1024-Bit, 1-Wire EEPROM
4 of 23
DESCRIPTION
The DS2431 combines 1024 bits of EEPROM, an 8-byte register/control page with up to 7 user read/write bytes,
and a fully-featured 1-Wire interface in a single chip. Each DS2431 has its own 64-bit ROM registration number
that is factory lasered into the chip to provide a guaranteed unique identity for absolute traceability. Data is
transferred serially via the 1-Wire protocol, which requires only a single data lead and a ground return. The DS2431
has an additional memory area called the scratchpad that acts as a buffer when writing to the main memory or the
register page. Data is first written to the scratchpad from which it can be read back. After the data has been
verified, a copy scratchpad command transfers the data to its final memory location. Applications of the DS2431
include accessory/PC board identification, medical sensor calibration data storage, analog sensor calibration
including IEEE-P1451.4 Smart Sensors, ink and toner print cartridge identification, and after-market management
of consumables.
OVERVIEW
The block diagram in Figure 1 shows the relationships between the major control and memory sections of the
DS2431. The DS2431 has four main data components: 1) 64-bit lasered ROM, 2) 64-bit scratchpad, 3) four 32-byte
pages of EEPROM, and 4) 64-bit register page. The hierarchical structure of the 1-Wire protocol is shown in Figure
2. The bus master must first provide one of the seven ROM Function Commands, 1) Read ROM, 2) Match ROM, 3)
Search ROM, 4) Skip ROM, 5) Resume, 6) Overdrive-Skip ROM or 7) Overdrive-Match ROM. Upon completion of
an Overdrive ROM command byte executed at standard speed, the device enters Overdrive mode where all
subsequent communication occurs at a higher speed. The protocol required for these ROM function commands is
described in Figure 9. After a ROM function command is successfully executed, the memory functions become
accessible and the master may provide any one of the four memory function commands. The protocol for these
memory function commands is described in Figure 7.
All data is read and written least significant bit first.
Figure 1. Block Diagram
PARASITE POWER
I/O
64-bit
Lasered ROM
1-Wire
Function Control
64-bit
Scratchpad
Data Memory
4 Pages of
256 bits each
CRC16
Generator
Memory
Function
Control Unit
Register Page
64 bits
DS2431
相关PDF资料 |
PDF描述 |
|---|---|
| DS2431X | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| DS2441 | 1-Cell Li-Ion Battery Manager |
| DS2450 | 1-Wire Quad A/D Converter |
| DS2450S | 1-Wire Quad A/D Converter |
| DS2480 | Serial 1.Wire Line Driver |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2431P R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1024-Bit, 1-Wire EEPROM |
| DS2431P T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1024-Bit, 1-Wire EEPROM |
| DS2431P/R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1024-Bit 1-Wire EEPROM |
| DS2431P/T | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1024-Bit 1-Wire EEPROM |
| DS2431P/T&R | 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 |
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