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參數(shù)資料
| 型號： | DS2417P/T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TIMECHIP W/INTRPT 1WIRE 6TSOC |
| 標(biāo)準(zhǔn)包裝： | 4,000 |
| 類型： | 二進(jìn)制計數(shù)器 |
| 特點(diǎn)： | 唯一 ID |
| 時間格式： | 二進(jìn)制 |
| 數(shù)據(jù)格式： | 二進(jìn)制 |
| 接口： | 1 線 串行 |
| 電源電壓： | 2.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-LSOJ |
| 供應(yīng)商設(shè)備封裝： | 6-TSOC |
| 包裝： | 帶卷 (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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2417V | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Time Chip With Interrupt |
| DS2417X | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝: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 類別:集成電路 (IC) >> 時鐘/計時 - 實時時鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時鐘/日歷 特點(diǎn):警報器，閏年，SRAM 存儲容量:- 時間格式:HH:MM:SS（12/24 小時） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件 |
| DS2421FP000 | 制造商:Thomas & Betts 功能描述:200A,CON,3P4W,MG,421,3P440V |
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