收藏本站
DS18S20-PAR
The DS18S20-PAR samples the 1-Wire bus during a window that lasts from 15 m s to 60 m s after the
master initiates the write time slot. If the bus is high during the sampling window, a 1 is written to the
DS18S20-PAR. If the line is low, a 0 is written to the DS18S20-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 m s < T X “0” < 120
DS18S20-PAR samples
MIN TYP MAX
MASTER WRITE “1” SLOT
1 m s < T REC < ￥
> 1 m s
DS18S20-PAR samples
MIN TYP MAX
15 m s
15 m s
30 m s
15 m s
15 m s
30 m s
V PU
1-WIRE BUS
GND
MASTER READ “0” SLOT
MASTER READ “1” SLOT
1 m s < T REC < ￥
> 1 m s
Master samples
> 1 m s
Master samples
15 m s
45 m s
LINE TYPE LEGEND
Bus master pulling low
15 m s
DS18S20-PAR pulling low
Resistor pullup
READ TIME SLOTS
The DS18S20-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 DS18S20-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
DS18S20-PAR FUNCTION COMMAND section.
All read time slots must be a minimum of 60 m s in duration with a minimum of a 1 m 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 1 m s and then releasing the bus (see Figure 12). After the master initiates the read time slot,
the DS18S20-PAR will begin transmitting a 1 or 0 on bus. The DS18S20-PAR transmits a 1 by leaving
the bus high and transmits a 0 by pulling the bus low. When transmitting a 0, the DS18S20-PAR will
14 of 20
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
DS60R+T&R IC SENSOR MICRO CENTIGRADE SOT23
DV164102 KIT DEV RFPICKIT KIT 1
DVK90109 KIT DEV FOR MLX90109
DVK90121 KIT DEV FOR MLX90121
DXP18CN7515TL COUPLER FILM 75 OHM 0603
E-17-U TOUCHSCREEN 17" USB
E39-L52 BRACKET FOR E3SA
E4DA-WL1C AMP FOR E4DA 3 LEVEL OUT ALARM
相关代理商/技术参数
DS18S20-SL/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
DS18S20-SL+T&R 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 1-WIRE - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN HI-PREC TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr
DS18S20-SL+T&R 功能描述:板上安装温度传感器 Prgmble Resolution 1-Wire Parasite Pwr 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
DS18S20-W 制造商:Maxim Integrated Products 功能描述:
DS18S20Z 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
DS18S20Z/T&R 制造商:Maxim Integrated Products 功能描述:HI PREC MICROLAN DIG THERM 8-SO T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN HI-PREC 8-SOIC
DS18S20Z/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
DS18S20Z+ 功能描述:板上安装温度传感器 Prgmble Resolution 1-Wire Parasite Pwr 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