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参数资料
| 型号： | DS2417P+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/15页 |
| 文件大小： | 0K |
| 描述： | IC TIMECHIP W/INTRPT 1WIRE 6TSOC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 4,000 |
| 类型： | 二进制计数器 |
| 特点： | 唯一 ID |
| 时间格式： | 二进制 |
| 数据格式： | 二进制 |
| 接口： | 1 线 串行 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-LSOJ |
| 供应商设备封装： | 6-TSOC |
| 包装： | 带卷 (TR) |
DS2417
64-BIT LASERED ROM
Each DS2417 contains a unique ROM code that is 64 bits long. The first eight bits are a 1-Wire family
code. The next 48 bits are a unique serial number. The last eight bits are a CRC of the first 56 bits. (See
Figure 3.) The 1-Wire CRC is generated using a polynomial generator consisting of a shift register and
XOR gates as shown in Figure 4. The polynomial is X8 + X5 + X4 + 1. Additional information about the
Dallas Semiconductor 1-Wire Cyclic Redundancy Check is available in
Application Note 27. The shift
register bits are initialized to zero. Then starting with the least significant bit of the family code, one bit
at a time is shifted in. After the 8th bit of the family code has been entered, then the serial number is
entered. After the 48th bit of the serial number has been entered, the shift register contains the CRC
value. Shifting in the eight bits of CRC should return the shift register to all zeros. The 64-bit ROM and
ROM Function Control section allow the DS2417 to operate as a 1-Wire device and follow the 1-Wire
protocol detailed in the section "1-Wire Bus System".
HIERARCHICAL STRUCTURE FOR 1-WIRE PROTOCOL Figure 2
3 of 15
DS2417
Command
Level
Available
Commands
Data Fields
Affected
1-Wire Bus
Bus
Other
Devices
Master
DS2417 specific
Function Commands
(see Figure 5)
Write Clock
Read Clock
RTC Counter, Device Control
Read ROM
Match ROM
Search ROM
Skip ROM
64-bit ROM
N/A
1-Wire ROM Function
Commands (see Figure 7)
64-BIT LASERED ROM Figure 3
MSB
LSB
8-Bit CRC Code
48-Bit Serial Number
8-Bit Family Code (27h)
MSB
LSB MSB
LSB
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2417V | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Time Chip With Interrupt |
| DS2417X | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS2417X/T&R | 制造商:Maxim Integrated Products 功能描述:IC TIMECHIP W/INTRPT 1WIRE CSP |
| DS2417X/T&R | 功能描述:IC TIMECHIP W/INTRPT 1WIRE CSP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
| DS2421FP000 | 制造商:Thomas & Betts 功能描述:200A,CON,3P4W,MG,421,3P440V |
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