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參數(shù)資料
| 型號： | LM75DM-33R2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | 2-Wire Serial Temperature Sensor and Monitor |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), 3Cel, SQUARE, SURFACE MOUNT |
| 封裝： | PLASTIC, MICROPAK-8 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 150K |
| 代理商： | LM75DM-33R2 |
LM75
http://onsemi.com
8
Temperature (TEMP) Register, 16–bits, Read–only
The binary value in this register represents ambient
temperature following a conversion cycle.
Temperature Register (TEMP)
D[15]
D[14]
D[13]
D[12]
D[11]
D[10]
D[9]
D[8]
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
MSB
D7
D6
D5
D4
D3
D2
D1
LSB
X
X
X
X
X
X
X
Temperature Setpoint (T
SET
) and Hysteresis (T
HYST
) Register, 16–bits, Read–Write:
Temperature Setpoint Register (TSET)
D[15]
D[14]
D[13]
D[12]
D[11]
D[10]
D[9]
D[8]
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
MSB
D7
D6
D5
D4
D3
D2
D1
LSB
X
X
X
X
X
X
X
Hysteresis Register (THYST)
D[15]
D[14]
D[13]
D[12]
D[11]
D[10]
D[9]
D[8]
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
MSB
D7
D6
D5
D4
D3
D2
D1
LSB
X
X
X
X
X
X
X
In the TEMP, T
SET
, and T
HYST
registers, each unit value
represents one–half degree (Celsius). The value is in 2’s –
complement binary format such that a reading of
000000000b corresponds to 0
°
C. Examples of this
temperature to binary value relationship are shown in the
following table.
Temperature to Digital Value Conversion
Temperature
Binary Value
HEX Value
+125
°
C
0 11111010
0FA
+25
°
C
0 00110010
032
+0.5
°
C
0 00000001
001
0
°
C
0 00000000
00
— 0.5
°
C
1 11111111
1FF
— 25
°
C
1 11001110
1CE
— 40
°
C
1 10110000
1B0
— 55
°
C
1 10010010
192
The LM75’s register set is summarized below
Name
Description
Width
Read
Write
Notes
TEMP
Ambient Temperature
16
X
2’s Complement Format
TSET
THYST
POINT
Temperature Setpoint
16
X
X
2’s Complement Format
Temperature Hysteresis
16
X
X
2’s Complement Format
Register Pointer
8
X
X
CONFIG
Configuration Register
8
X
X
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