參數(shù)資料
型號(hào): LM95235CIMM
廠(chǎng)商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 溫度/濕度傳感器
英文描述: Precision Remote Diode Temperature Sensor with SMBus Interface and TruTherm Technology
中文描述: DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2Cel, SQUARE, SURFACE MOUNT
封裝: MO-187, MSOP-8
文件頁(yè)數(shù): 11/25頁(yè)
文件大小: 784K
代理商: LM95235CIMM
1.0 Functional Description
(Continued)
1.5 TEMPERATURE DATA FORMAT
Temperature data can only be read from the Local and
Remote Temperature registers.
Remote temperature data with the digital filter off is repre-
sented by an 10-bit plus sign, two’s complement word and
11-bit unsigned binary word with an LSb (Least Significant
Bit) equal to 0.125C. The data format is a left justified 16-bit
word available in two 8-bit registers. Unused bits report "0".
Remote temperature data with the digital filter on is repre-
sented by a 12-bit plus sign, two’s complement word and
13-bit unsigned binary word with an LSb (Least Significant
Bit) equal to 0.03125C (1/32C). The data format is a left
justified 16-bit word available in two 8-bit registers. Unused
bits report "0".
11-bit, 2’s complement (10-bit plus sign)
Temperature
Digital Output
Binary
0111 1101 0000 0000
0001 1001 0000 0000
0000 0001 0000 0000
0000 0000 0010 0000
0000 0000 0000 0000
1111 1111 1110 0000
1111 1111 0000 0000
1110 0111 0000 0000
1100 1001 0000 0000
Hex
7D00h
1900h
0100h
0020h
0000h
FFE0h
FF00h
E700h
C900h
+125C
+25C
+1C
+0.125C
0C
0.125C
1C
25C
55C
11-bit, unsigned binary
Temperature
Digital Output
Binary
1111 1111 1110 0000
1111 1111 0000 0000
1100 1001 0000 0000
0111 1101 0000 0000
Hex
FFE0h
FF00h
C900h
7D00h
+255.875C
+255C
+201C
+125C
Temperature
Digital Output
Binary
0001 1001 0000 0000
0000 0001 0000 0000
0000 0000 0010 0000
0000 0000 0000 0000
Hex
1900h
0100h
0020h
0000h
+25C
+1C
+0.125C
0C
13-bit, 2’s complement (12-bit plus sign)
Temperature
Digital Output
Binary
0111 1101 0000 0000
0001 1001 0000 0000
0000 0001 0000 0000
0000 0000 0000 1000
0000 0000 0000 0000
1111 1111 1111 1000
1111 1111 0000 0000
1110 0111 0000 0000
1100 1001 0000 0000
Hex
7D00h
1900h
0100h
0008h
0000h
FFF8h
FF00h
E700h
C900h
+125C
+25C
+1C
+0.03125C
0C
0.03125C
1C
25C
55C
13-bit, unsigned binary
Temperature
Digital Output
Binary
1111 1111 1110 0000
1111 1111 0000 0000
1100 1001 0000 0000
0111 1101 0000 0000
0001 1001 0000 0000
0000 0001 0000 0000
0000 0000 0000 1000
0000 0000 0000 0000
Hex
FFE0h
FF00h
C900h
7D00h
1900h
0100h
0008h
0000h
+255.875C
+255C
+201C
+125C
+25C
+1C
+0.03125C
0C
Local Temperature data is represented by a 10-bit plus sign,
two’s complement word with an LSb (Least Significant Bit)
equal to 0.125C. The data format is a left justified 16-bit
word available in two 8-bit registers. Unused bits will always
report
"0".
Local
temperature
+127.875C are clamped to +127.875C, they will not roll-
over to negative temperature readings.
readings
greater
than
11-bit, 2’s complement (10-bit plus sign)
Temperature
Digital Output
Binary
0111 1101 0000 0000
0001 1001 0000 0000
0000 0001 0000 0000
0000 0000 0010 0000
0000 0000 0000 0000
1111 1111 1110 0000
1111 1111 0000 0000
1110 0111 0000 0000
1100 1001 0000 0000
Hex
7D00h
1900h
0100h
0020h
0000h
FFE0h
FF00h
E700h
C900h
+125C
+25C
+1C
+0.125C
0C
0.125C
1C
25C
55C
20174927
FIGURE 3. Digital Filter Response in a typical Intel
processor on a 65 nm or 90 nm process. The filter
curves were purposely offset for clarity.
L
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