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参数资料
| 型号： | MCP9808-E/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 16/52页 |
| 文件大小： | 1085K |
| 描述： | IC TEMP SENSOR DGTL I2C 8MSOP |
| 标准包装： | 100 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±1°C |
| 拓扑： | ADC（三角积分型），寄存器库 |
| 输出类型： | 2 线串行，I²C?/SMBUS? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°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-MSOP |
| 包装： | 管件 |
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MCP9808
DS25095A-page 16
?2011 Microchip Technology Inc.
5.1
Registers
The MCP9808 has several registers that are
user-accessible. These registers include the Tempera-
ture register, Configuration register, Temperature Alert
Upper Boundary and Lower Boundary Limit registers,
Critical Temperature Limit register, Manufacturer
Identification register and Device Identification register.
The Temperature register is read-only, used to access
the ambient temperature data. This register is double-
buffered and it is updated every t
CONV
. The Temperature
Alert Upper Boundary and Lower Boundary Limit
registers are read/write registers. If the ambient
temperature drifts beyond the user-specified limits, the
MCP9808 outputs a signal using the Alert pin (refer to
Section 5.2.3 Alert Output Configuration ). In
addition, the Critical Temperature Limit register is used
to provide an additional critical temperature limit.
The Configuration register provides access to
configure the MCP9808 devices various features.
These registers are described in further detail in the
following sections.
The registers are accessed by sending a Register
Pointer to the MCP9808, using the serial interface. This
is an 8-bit write-only pointer. However, the four Least
Significant bits are used as pointers and all unused bits
(Register Pointer<7:4>) need to be cleared or set to 0.
Register 5-1 describes the pointer or the address of
each register.
REGISTER 5-1:
REGISTER POINTER (WRITE-ONLY)
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
Pointer bits
bit 7
bit 0
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
bit 7-4
W: Writable bits
Write 0.
Bits 7-4 must always be cleared or written to 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.
bit 3-0
Pointer bits
0000 = RFU, Reserved for Future Use (Read-Only register)
0001 = Configuration register (CONFIG)
0010 = Alert Temperature Upper Boundary Trip register (T
UPPER
)
0011 = Alert Temperature Lower Boundary Trip register (T
LOWER
)
0100 = Critical Temperature Trip register (T
CRIT
)
0101 = Temperature register (T
A
)
0110 = Manufacturer ID register
0111 = Device ID/Revision register
1000 = Resolution register
1xxx = Reserved
(1)
Note 1: Some registers contain calibration codes and should not be accessed.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP9808T-E | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:?±0.5?°C Maximum Accuracy Digital Temperature Sensor |
| MCP9808T-E/MC | 功能描述:板上安装温度传感器 Silicon temp sensor with I2C interface 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 |
| MCP9808T-E/MS | 功能描述:IC TEMP SENSOR DGTL I2C 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:3,000 系列:- 功能:温度开关 传感器类型:内部 感应温度:85°C 分界点 精确度:±6°C（最小值） 拓扑:ADC（三角积分型），比较器，寄存器库 输出类型:开路漏极 输出警报:是 输出风扇:是 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:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:ADT6501SRJZP085RL7-ND |
| MCP98242 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Memory Module Temperature Sensor w/EEPROM for SPD |
| MCP98242_09 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Memory Module Temperature Sensor w/EEPROM for SPD |
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