参数资料
型号: DS1731U+T&R
厂商: Maxim Integrated
文件页数: 10/16页
文件大小: 435K
描述: IC THERMOMETER DIG HI-PREC 8MSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 3,000
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(三角积分型),比较器,寄存器库
输出类型: 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-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-uMAX
包装: 带卷 (TR)
DS1631/DS1631A/DS1731
 
10 of 15 
 Table 5. CONFIGURATION REGISTER BIT DESCRIPTIONS
BIT NAME
(USER ACCESS)
FUNCTIONAL DESCRIPTION
DONETemperature
Conversion Done
(Read Only)
Power-up state = 1.
DONE = 0. Temperature conversion is in progress.
DONE = 1. Temperature conversion is complete.
THFTemperature High Flag
(Read/Write)
Power-up state = 0.
THF = 0. The measured temperature has not exceeded the value
stored in the T
H
 register since power-up.
THF = 1. At some point since power-up the measured temperature
has been higher than the value stored in the T
H
 register. THF remains
a 1 until it is overwritten with a 0 by the user, the power is cycled, or
a Software POR command is issued.
TLFTemperature Low Flag
(Read/Write)
Power-up state = 0.
TLF = 0. The measured temperature has not been lower than the
value stored in the T
L
 register since power-up.
TLF = 1. At some point since power-up the measured temperature
has been lower than the value stored in the T
L
 register. TLF remains a
1 until it is overwritten with a 0 by the user, the power is cycled, or a
Software POR command is issued.
NVBNV Memory Busy
(Read Only)
Power-up state = 0.
NVB = 1. A write to EEPROM memory is in progress.
NVB = 0. NV memory is not busy.
R1Resolution Bit 1
(Read/Write)
Power-up state = 1.
Sets conversion, T
H
, and T
L
 resolution (see Table 6).
R0Resolution Bit 0
(Read/Write)
Power-up state = 1.
Sets conversion, T
H
, and T
L
 resolution (see Table 6).
POL*T
OUT
 Polarity
(Read/Write)
Power-up state = last value written to this bit. Factory setting = 0.
POL = 1. T
OUT
 is active high.
POL = 0. T
OUT
 is active low.
1SHOT*Conversion Mode
(Read/Write)
Power-up state = last value written to this bit. Factory setting = 0.
1SHOT = 1. One-Shot Mode. The Start Convert T command initiates
a single temperature conversion and then the device goes into a low-
power standby state.
1SHOT = 0. Continuous Conversion Mode. The Start Convert T
command initiates continuous temperature conversions.
*Stored in EEPROM
 
Table 6. RESOLUTION CONFIGURATION
 
R1
R0
RESOLUTION
(BIT)
CONVERSION TIME
(MAX)
0
0
9
93.75ms
0
1
10
187.5ms
1
0
11
375ms
1
1
12
750ms
 
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