参数资料
型号: LM75
厂商: ON SEMICONDUCTOR
元件分类: 温度/湿度传感器
英文描述: 2-Wire Serial Temperature Sensor and Monitor
中文描述: 数字温度传感器和温度看门狗监测器,2线接口
文件页数: 9/12页
文件大小: 150K
代理商: LM75
LM75
http://onsemi.com
6
1
0
1
A2 A1 A0 R/W
D7 D6 D5 D4
91
1
D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
9
91
9
91
1
Start
by
Master
Address Byte
Ack
by
LM75
Most Significant Data Byte
Ack
by
Master
Least Significant Data Byte
No Ack
by
Master
91
9
1
0
1
A2 A1 A0 R/W
Start
by
Master
Address Byte
Ack
by
LM75
Pointer Byte
Ack
by
LM75
.....
D1 D0
0
00
Stop
Cond
by
Master
Most Significant Data Byte
Ack
by
Master
Least Significant Data Byte
No Ack
by
Master
Stop
Cond
by
Master
Repeat
Address Byte
Ack
by
LM75
Start
by
Master
1
0
1
A2 A1 A0 R/W
D7 D6 D5 D4 D3 D2 D1 D0
1
0
1
A2 A1 A0 R/W
D7 D6 D5 D4 D3 D2 D1 D0
Start
by
Master
Address Byte
Ack
by
LM75
Data Byte
No Ack
by
Master
Stop
Cond
by
Master
1
0
1
A2 A1 A0 R/W
Start
by
Master
Address Byte
Ack
by
LM75
Pointer Byte
11
99
11
99
Ack
by
LM75
1
00
0
D0
0
Address Byte
Ack
by
LM75
Repeat
Start
by
Master
Data Byte
No Ack
by
Master
Stop
Cond
by
Master
1
99
0
1 A2 A1 A0 R/W
D7 D6 D5 D4 D3 D2 D1 D0
Most Significant Data Byte
Ack
by
LM75
Least Significant Data Byte
Ack
by
LM75
Stop
Cond
by
Master
Start
by
Master
Address Byte
Ack
by
LM75
Pointer Byte
Ack
by
LM75
Configuration Byte
Ack
by
LM75
Stop
Cond
by
Master
11
99
1
9
11
99
1
9 1
Start
by
Master
Address Byte
Ack
by
LM75
Pointer Byte
Ack
by
LM75
1
0
1
A2 A1 A0 R/W
00
00 D1 D0
00
0D4 D3 D2 D1 D0
D4 D3 D2 D1 D0
D1 D0
D7 D6 D5
D4 D3 D2 D1 D0
D7 D6 D5
9
1
0
1
A2 A1 A0 R/W
00
(a) Typical 2–Byte Read From Preset Pointer Location Such as Temp, TOS, THYST
(b) Typical Pointer Set Followed by Immediate Read for 2–Byte Register Such as Temp, TOS, THYST
(c) Typical 1–Byte Read From Configuration Register With Preset Pointer
(d) Typical Pointer Set Followed by Immediate Read from Configuration Register
(e) Configuration Register Write
(f) TOS and THYST Write
Figure 2. Serial Port Operation
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