- 您现在的位置：买卖IC网 > PDF目录1915 > DS2408S+T&R (Maxim Integrated Products)IC SWITCH 8-CHAN ADDRESS 16SOIC PDF资料下载
参数资料
| 型号： | DS2408S+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 37/39页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 8-CHAN ADDRESS 16SOIC |
| 标准包装： | 2,500 |
| 接口： | 1 线 |
| 输入/输出数： | 8 |
| 中断输出： | * |
| 电源电压： | 2.8 V ~ 5.25 V |
| 工作温度： | * |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
| 包括： | * |
第1页第2页第3页第4页第5页第6页第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页第28页第29页第30页第31页第32页第33页第34页第35页第36页当前第37页第38页第39页
DS2408
7 of 39
Figure 2. HIERARCHICAL STRUCTURE FOR 1-Wire PROTOCOL
1-Wire Net
Other
Devices
Bus
Master
Command
Level:
1-Wire ROM Function
Commands
DS2408-Specific
Control Function
Commands
DS2408
Available
Commands:
Read ROM
Match ROM
Search ROM
Skip ROM
Conditional Search
ROM
Overdrive Match
Overdrive Skip
Resume
Read PIO Registers
Channel Access Read
Channel Access Write
Write Conditional
Search Register
Reset Activity Latches
Data Field
Affected:
64-BIT ROM, RC-FLAG
RC-FLAG
64-BIT ROM, RC-FLAG, Port Status,
Cond. Search Settings,
64-BIT ROM, RC-FLAG, OD-Flag
RC-FLAG, OD-Flag
RC-FLAG
PIO Registers
Port Input Latches
Port Output Latches
Conditional Search Register
Activity Latches
Cmd.
Codes:
33h
55h
F0h
CCh
ECh
69h
3Ch
A5h
F0h
F5h
5Ah
CCh
C3h
PARASITE POWER
The DS2408 can derive its power entirely from the 1-Wire bus by storing energy on an internal capacitor
during periods of time when the signal line is high. During low times the device continues to operate from
this “parasite” power source until the 1-Wire bus returns high to replenish the parasite (capacitor) supply.
If power is available, the VCC pin should be connected to the external voltage supply.
Figure 3. 64-BIT LASERED ROM
MSB
LSB
8-BIT
CRC CODE
48-BIT SERIAL NUMBER
8-BIT FAMILY
CODE (29h)
MSB
LSB
MSB
LSB
MSB
LSB
64-BIT LASERED ROM
Each DS2408 contains a unique ROM code that is 64 bits long. The first 8 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
for details. 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 1-Wire Cyclic Redundancy Check is available in Application Note 27.
相关PDF资料 |
PDF描述 |
|---|---|
| DS2409P/T&R | IC COUPLER MICROLAN 1-WIRE 6TSOC |
| DS2411P+T&R | IC SILICON SERIAL NUMBER 6TSOC |
| DS2413Q+T&R | IC SWITCH 2CH ADDRESS 6-TDFN |
| DS2480B+ | IC LINE DRVR W/SENSOR 1-W 8-SOIC |
| DS2482X-100+T | IC MASTER I2C-1WIRE 1CH 9-WLP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2409 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:MicroLAN Coupler |
| DS2409FRAB0 | 制造商:Thomas & Betts 功能描述:200A,REC,3P4W,MG,3P220V,SC |
| DS2409MP000 | 制造商:Thomas & Betts 功能描述:200A,PLG,3P4W,MG,409,3P220V |
| DS2409P | 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/T&R | 制造商:Maxim Integrated Products 功能描述:IC COUPLER MICROLAN 1-WIRE 6TSOC |
发布紧急采购，3分钟左右您将得到回复。