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参数资料
| 型号： | DS1822+PAR |
| 厂商： | Maxim Integrated |
| 文件页数： | 14/19页 |
| 文件大小： | 0K |
| 描述： | IC THERMOMETER ECONO DIG TO-92 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 感应温度： | -55°C ~ 125°C |
| 输出类型： | 数字 |
| 电源电压： | 3 V ~ 5 V |
| 精确度： | ±2°C |
| 封装/外壳： | TO-226-3、TO-92-3 标准主体 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 管件 |
DS1822-PAR
The DS1822-PAR samples the 1-Wire bus during a window that lasts from 15 μ s to 60 μ s after the master
initiates the write-time slot. If the bus is high during the sampling window, a 1 is written to the DS1822-
PAR. If the line is low, a 0 is written to the DS1822-PAR.
READ/WRITE-TIME SLOT TIMING DIAGRAM Figure 12
START
OF SLOT
START
OF SLOT
V PU
1-WIRE BUS
GND
MASTER WRITE “0” SLOT
60 μ s < T X “0” < 120 μ s
DS1822-PAR samples
MASTER WRITE “1” SLOT
1 μ s < T REC < ∞
> 1 μ s
DS1822-PAR samples
MIN
TYP
MAX
MIN
TYP
MAX
15 μ s
15 μ s
30 μ s
15 μ s
15 μ s
30 μ s
V PU
1-WIRE BUS
GND
MASTER READ “0” SLOT
MASTER READ “1” SLOT
1 μ s < T REC < ∞
> 1 μ s
Master samples
> 1 μ s
Master samples
15 μ s
45 μ s
LINE TYPE LEGEND
Bus master pulling low
15 μ s
DS1822-PAR pulling low
Resistor pullup
READ-TIME SLOTS
The DS1822-PAR can only transmit data to the master when the master issues read-time slots. Therefore,
the master must generate read-time slots immediately after issuing a Read Scratchpad [BEh] command,
so that the DS1822-PAR can provide the requested data. In addition, the master can generate read-time
slots after issuing a Recall E 2 [B8h] command to find out the recall status as explained in the DS1822-
PAR FUNCTION COMMAND section.
All read-time slots must be a minimum of 60 μ s in duration with a minimum of a 1 μ s recovery time
between slots. A read-time slot is initiated by the master device pulling the 1-Wire bus low for a
minimum of μ s and then releasing the bus (see Figure 12). After the master initiates the read-time slots,
the DS1822-PAR will begin transmitting a 1 or 0 on bus. The DS1822-PAR transmits a 1 by leaving the
bus high and transmits a 0 by pulling the bus low. When transmitting a 0, the DS1822-PAR will release
the bus by the end of the time slot, and the bus will be pulled back to its high idle state by the pullup
14 of 19
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1822-PAR/T&R | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| DS1822-PAR_07 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Econo 1-Wire Parasite-Power Digital Thermometer |
| DS1822-PAR+T&R | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 1-WIRE 3PIN TO-92 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER ECONO DIG TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors 1-Wire Digital Thermometer |
| DS1822-PAR+T&R | 功能描述:板上安装温度传感器 1-Wire Digital Thermometer RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| DS-18-22-RS | 制造商:TE Connectivity 功能描述:Red sealed splice terminal,0.5-1.5sq.mm |
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