- 您现在的位置：买卖IC网 > PDF目录18946 > DS18S20/T&R (Maxim Integrated)IC THERM MICROLAN HI PREC TO-92 PDF资料下载
参数资料
| 型号： | DS18S20/T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 12/23页 |
| 文件大小： | 0K |
| 描述： | IC THERM MICROLAN HI PREC TO-92 |
| 标准包装： | 2,000 |
| 感应温度： | -55°C ~ 125°C |
| 输出类型： | 数字 |
| 电源电压： | 3 V ~ 5.5 V |
| 精确度： | ±0.5°C |
| 封装/外壳： | TO-226-3、TO-92-3（TO-226AA）成形引线 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 带卷 (TR) |
DS18S20
COPY SCRATCHPAD [48h]
This command copies the contents of the scratchpad T H and T L registers (bytes 2 and 3) to EEPROM. If
the device is being used in parasite power mode, within 10 μ s (max) after this command is issued the
master must enable a strong pullup on the 1-Wire bus for at least 10ms as described in the Powering the
DS18S20 section.
RECALL E 2 [B8h]
This command recalls the alarm trigger values (T H and T L ) from EEPROM and places the data in bytes 2
and 3, respectively, in the scratchpad memory. The master device can issue read-time slots following the
Recall E 2 command and the DS18S20 will indicate the status of the recall by transmitting 0 while the
recall is in progress and 1 when the recall is done. The recall operation happens automatically at power-
up, so valid data is available in the scratchpad as soon as power is applied to the device.
READ POWER SUPPLY [B4h]
The master device issues this command followed by a read-time slot to determine if any DS18S20s on the
bus are using parasite power. During the read-time slot, parasite powered DS18S20s will pull the bus low,
and externally powered DS18S20s will let the bus remain high. See the Powering the DS18S20 section
for usage information for this command.
Table 2. DS18S20 Function Command Set
Recall E
44h
COMMAND
Convert T
Read
Scratchpad
Write
Scratchpad
Copy
Scratchpad
2
Read Power
Supply
1-Wire BUS ACTIVITY
DESCRIPTION PROTOCOL AFTER COMMAND IS
ISSUED
TEMPERATURE CONVERSION COMMANDS
Initiates temperature DS18S20 transmits conversion
conversion. status to master (not applicable
for parasite-powered
DS18S20s).
MEMORY COMMANDS
Reads the entire DS18S20 transmits up to 9
scratchpad including the BEh data bytes to master.
CRC byte.
Writes data into Master transmits 2 data bytes
scratchpad bytes 2 and 3 4Eh to DS18S20.
(T H and T L ).
Copies T H and T L data None
from the scratchpad to 48h
EEPROM.
Recalls T H and T L data DS18S20 transmits recall
from EEPROM to the B8h status to master.
scratchpad.
Signals DS18S20 power DS18S20 transmits supply
supply mode to the B4h status to master.
master.
NOTES
1
2
3
1
Note 1:
Note 2:
Note 3:
For parasite-powered DS18S20s, the master must enable a strong pullup on the 1-Wire bus during temperature
conversions and copies from the scratchpad to EEPROM. No other bus activity may take place during this time.
The master can interrupt the transmission of data at any time by issuing a reset.
Both bytes must be written before a reset is issued.
12 of 23
相关PDF资料 |
PDF描述 |
|---|---|
| 507-4957-3733-500F | LED PANEL IND 5V YELLOW |
| 507-4957-3333-500F | LED PANEL IND 5V 20MA AMBER |
| DS1822Z | IC THERMOMETER ECONO DIG 8-SOIC |
| 559-6401-001F | LED SNAP-IN PANEL IND WHT |
| 559-6201-001F | LED SNAP-IN PANEL IND GREEN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
发布紧急采购，3分钟左右您将得到回复。