参数资料
型号: MCP9808T-E/MS
厂商: Microchip Technology
文件页数: 29/52页
文件大小: 1085K
描述: IC TEMP SENSOR DGTL I2C 8MSOP
标准包装: 2,500
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:
输出风扇:
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: 带卷 (TR)
?2011 Microchip Technology Inc.
DS25095A-page 29
MCP9808
5.1.6
RESOLUTION REGISTER
This register allows the user to change the sensor
resolution     (see     Section 5.2.4     Temperature
Resolution).    The    POR    default    resolution    is
+0.0625癈. The selected resolution is also reflected in
the Capability register (see Register 5-2).
 
 
FIGURE 5-8:
Timing Diagram for Changing T
A
 Resolution to +0.0625癈 <0000  0011>b (see
Section 4.0 Serial Communication).
REGISTER 5-7:
RESOLUTION REGISTER (?/SPAN> ADDRESS 0000  1000b)
U-0
U-0
U-0
U-0
U-0
U-0
R/W-1
R/W-1






Resolution
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 7-2
Unimplemented: Read as 0
bit 1-0
Resolution bits
00 =   +0.5癈 (t
CONV
 = 30 ms typical)
01 =   +0.25癈 (t
CONV
 = 65 ms typical)
10 =   +0.125癈 (t
CONV
 = 130 ms typical)
11 =   +0.0625癈 (power-up default, t
CONV
 = 250 ms typical)
SDA
A
C
K
0   0   1   1
A
A
C
K
S
2
A
1
A
0
1   2   3   4   5   6   7   8
1   2   3   4   5   6   7   8
SCL
Address Byte
W
MCP9808
MCP9808
A
C
K
P
1   2   3   4   5   6   7   8
 Data
Resolution Pointer
MCP9808
0   0   0   0   1
0   0   0
0   0   0   0   0   0   1   1
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