参数资料
型号: DS1721S+
厂商: Maxim Integrated
文件页数: 11/17页
文件大小: 257K
描述: IC THERMOMETER/STAT DIG HP 8SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
功能: 温度计,恒温计
传感器类型: 内部
感应温度: -55°C ~ 125°C
精确度: ±2°C(最小值)
拓扑: ADC,比较器,寄存器库
输出类型: 2 线串行,I²C?/SMBUS?
输出警报:
输出风扇:
电源电压: 2.7 V ~ 5.5 V
工作温度: -55°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
DS1721
 
 
 
11 of 17
Stop Convert T [22h]
This command stops temperature conversion. No further data is required. This command may be used to
halt a DS1721 in continuous conversion mode. After issuing this command, the current temperature
measurement will be completed, stored and the DS1721 will remain idle until a Start Convert T is issued
to resume conversions.
 
DS1721 COMMAND SET Table 4 
INSTRUCTION
DESCRIPTION
PROTOCOL
2-WIRE BUS DATA
AFTER ISSUING
PROTOCOL
NOTES
REGISTER COMMANDS
Access
Configuration
Writes to/Reads from 8-bit
configuration/status register
ACh
1 data byte
1
Access TH
Writes to/Reads from
12-bit TH register
A1h
1 or 2 data bytes
1, 3
Access TL
Writes to/Reads from
12-bit TL register
A2h
1 or 2 data bytes
1, 3
CONVERSION COMMANDS
Start Convert T
Initiates temperature
conversion
51h
idle
2
Stop Convert T
Terminates continuous
conversions
22h
idle
2
Read
Temperature
Reads 12-bit
Temperature register
AAh
Read 1 or 2 data bytes
3
 
NOTES:
1.   Data direction depends upon R/
W  bit in the 2-wire control byte. 
 
2.   In continuous conversion mode, a Stop Convert T command will halt continuous conversion. To
restart, the Start Convert T command must be issued. In one-shot mode, a Start Convert T command
must be issued for every temperature reading desired.
 
3.   If the user only desires 8-bit thermometer readings, the master need only read 1 data byte and follow
with a NACK and STOP. If higher resolution is required, 2 bytes must be read.
 
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