参数资料
型号: SE95D,118
厂商: NXP Semiconductors
文件页数: 10/27页
文件大小: 150K
描述: IC SENSOR TEMP 2.8-5.5V 8SOIC
标准包装: 1
功能: 温度监视系统(传感器),监视器
传感器类型: 内部
感应温度: -55°C ~ 125°C
精确度: ±3°C(最小值)
拓扑: ADC(三角积分型),比较器,振荡器,寄存器库
输出类型: 2 线串行,I²C?
输出警报:
输出风扇:
电源电压: 2.8 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-SO
包装: 标准包装
其它名称: 568-8721-6
SE95_7
?NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07  2 September 2009
10 of 27
NXP Semiconductors
SE95
Ultra high accuracy digital temperature sensor and thermal watchdog
When reading register Temp, all 16 bits of the two data bytes (MSByte and LSByte) must
be collected and then the twos complement data value according to the desired resolution
must be selected for the temperature calculation.
T
ab
le
8 shows the example for 11-bit
twos complement data value,
T
ab
le
9 shows the example for 13-bit twos complement
data value.
When converting into the temperature the proper resolution must be used as listed in
T
ab
le
10 using either one of these two formulae:
1. If the Temp data MSB = 0, then: Temp (癈) = +(Temp data) ?value resolution
2. If the Temp data MSB = 1, then: Temp (癈) = (twos complement Temp data) ?value
resolution
T
ab
le
11 shows some examples of the results for the 11-bit calculations.
Table 8.
Example 11-bit twos complement Temp register
MSByte
LSByte
7    6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
D10    D9    D8    D7    D6    D5    D4    D3    D2    D1    D0
X
X
X
X
X
Table 9.
Example 13-bit twos complement register
MSByte
LSByte
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
D12   D11   D10    D9    D8    D7    D6    D5    D4    D3    D2    D1    D0
X
X
X
Table 10.   Temp data and Temp value resolution
Data resolution
Value resolution
8 bit
1.0 癈
9 bit
0.5 癈
10 bit
0.25 癈
11 bit
0.125 癈
12 bit
0.0625 癈
13 bit
0.03125 癈
Table 11.   Temp register value
11-bit binary
(twos complement)
Hexadecimal value
Decimal value
Value
011 1111 1000
3F8
1016
+127.000 癈
011 1111 0111
3F7
1015
+126.875 癈
011 1111 0001
3F1
1009
+126.125 癈
011 1110 1000
3E8
1000
+125.000 癈
000 1100 1000
0C8
200
+25.000 癈
000 0000 0001
001
1
+0.125 癈
000 0000 0000
000
0
0.000 癈
111 1111 1111
7FF
1
0.125 癈
111 0011 1000
738
200
25.000 癈
110 0100 1001
649
439
54.875 癈
110 0100 1000
648
440
55.000 癈
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