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参数资料
| 型号： | DS2409P |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Telecom IC:Other |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, PDSO6 |
| 封装： | 3.70 X 4 MM, 1.50 MM HEIGHT, TSOC-6 |
| 文件页数： | 12/18页 |
| 文件大小： | 420K |
| 代理商： | DS2409P |
DS2409
3 of 18
64-BIT LASERED ROM
Each DS2409 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 of the lasered ROM is generated using the polynomial X8 + X5 + X4 + 1.
Additional information about the Dallas Semiconductor 1-Wire Cyclic Redundancy Check is available in
the Book of DS19xx iButton Standards. The 64-bit ROM and ROM Function Control section allow the
DS2409 to operate as a 1-Wire device and follow the 1-Wire protocol detailed in the section “1-Wire Bus
System”. The functions required to exercise the control functions of the DS2409 are not accessible until
the ROM function protocol has been satisfied. This protocol is described in the ROM functions flow
chart (Figure 7). The 1-Wire bus master must first provide one of the five ROM function commands.
After a ROM function sequence has been successfully executed, the bus master may then provide any one
of the function commands specific to the DS2409 (Figure 5).
HIERARCHICAL STRUCTURE FOR 1-WIRE PROTOCOL Figure 2
64-BIT LASERED ROM Figure 3
MSB
LSB
8-Bit CRC Code
48-Bit Serial Number
8-Bit Family Code (1FH)
MSB
LSB MSB
LSB
Not
Recommended
for
New
Design
相关PDF资料 |
PDF描述 |
|---|---|
| DS2415P | 0 TIMER(S), REAL TIME CLOCK, PDSO6 |
| DS2415X | 0 TIMER(S), REAL TIME CLOCK, X6 |
| DS2417X | 0 TIMER(S), REAL TIME CLOCK, PBGA6 |
| DS2417P | 0 TIMER(S), REAL TIME CLOCK, PDSO6 |
| DS2422X | SPECIALTY MEMORY CIRCUIT, UUC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2409P/T&R | 制造商:Maxim Integrated Products 功能描述:IC COUPLER MICROLAN 1-WIRE 6TSOC |
| DS2409P/T&R | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| DS2409P+ | 制造商:Maxim Integrated Products 功能描述:MICROLAN COUPLER 制造商:Maxim Integrated Products 功能描述:MICROLAN COUPLER SMD TSOC-6 2409 |
| DS2411 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Silicon Serial Number with Vcc Input |
| DS2411C/W | 制造商:Maxim Integrated Products 功能描述:SINGLE, UNSORTED UN-BACKLAPPED WAFER - Gel-pak, waffle pack, wafer, diced wafer on film |
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