參數(shù)資料
型號(hào)： MCP9803-M/MSG
元件分類： 溫度/濕度傳感器
英文描述： DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 3Cel, SQUARE, SURFACE MOUNT
封裝： LEAD FREE, PLASTIC, MO-187, MSOP-8
文件頁數(shù)： 30/30頁
文件大?。?/td> 478K
代理商： MCP9803-M/MSG
2004 Microchip Technology Inc.
DS21909B-page 9
MCP9800/1/2/3
4.3
Registers
The MCP9800/1/2/3 family has four registers that are
user-accessible. These registers are specified as the
ambient temperature register, the temperature limit-set
register, the temperature hysteresis register and device
configuration registers.
The ambient temperature register is a read-only
register and is used to access the ambient temperature
data. The data from the ADC is loaded in parallel in the
register. The temperature limit-set and temperature
hysteresis registers are read/write registers that
provide user-programmable temperature limits. If the
ambient temperature drifts beyond the programmed
limits, the MCP9800/1/2/3 outputs an alert signal using
the ALERT pin (refer to Section 4.3.4.3 “ALERT Out-
put Configuration”). The device configuration register
provides access for the user to configure the
MCP9800/1/2/3’s various features. These registers are
described in further detail in the following sections.
FIGURE 1:
Register Block Diagram.
The registers are accessed by sending register pointer
to the MCP9800/1/2/3 using the serial interface. This is
an 8-bit pointer. However, the two Least Significant bits
(LSb) are used as pointers and all other bits need to be
cleared <0>. This device has additional registers that
are reserved for test and calibration. If these registers
are accessed, the device may not perform according to
the specification. The pointer description is shown
below.
REGISTER 4-1:
REGISTER POINTER
ALERT Output
Control Logic
ALERT
Output
Resolution
Temperature
THYST
TSET
Register
Configuration
Register
One-Shot
Shutdown
Fault Queue
Alert Polarity
Alert Comp/Int
U-0
R/W-0
0
P1
P0
bit 7
bit 0
bit 7-3
Unimplemented: Read as ‘0’
bit 2-0
Pointer bits
00
=
Temperature Register
01
=
Configuration Register
10
=
Temperature Hysteresis Register
11
=
Temperature Limit-set Register
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP9803T-M/MS 功能描述:板上安裝溫度傳感器 12-b Thermal Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
MCP9803T-M/MSG 功能描述:板上安裝溫度傳感器 - Lead Free Package RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
MCP9803T-M/SN 功能描述:板上安裝溫度傳感器 12-b Thermal Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
MCP9803T-M/SNG 功能描述:板上安裝溫度傳感器 - Lead Free Package RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
MCP9804 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:±0.25°C Typ. Accuracy Digital Temperature Sensor
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