DS1626 Dallas, DS1626 Datasheet - Page 12

• Manufacturer Part Number: DS1626
• Description: High-Precision 3-Wire Digital Thermometer and Thermostat
• Manufacturer: Dallas

RST
RST
CLK
DQ
CLK
DQ
RST
RST
RST
CLK
CLK
CLK
DQ
DQ
DQ
Figure 7. 3-WIRE COMMUNICATION
a) Start Temperature Conversion
b) Write to the T
c) Write to the Configuration Register
d) Read from the Temperature Register
1
e) Read from the Configuration Register
Write TH [01h] or TL [02h] Command
C
Read Temperature [AAh] Command
0
0
0
1
0
C
1
1
Start Convert T [51h] Command
0
0
0
Read Config [ACh] Command
Write Config [0Ch] Command
0
0
H
1
0
1
0
1
/T
L
1
Registers
0
0
0
1
0
1
0
0
1
0
0
1
0
0
0
1
0
1
0
D
D
0
0
1
0
0
D
D
1
1
Temperature Data from DS1626/DS1726
D
Configuration Reg. Data from DS1626/DS1726
D
D
0
D
Configuration Reg. Data from Master
2
0
12 of 13
2
D
D
D
D
1
T
3
3
1
H
or T
D
D
D
4
D
4
2
2
L
D
D
Data from Master
D
5
5
D
3
3
D
D
6
D
6
D
4
4
D
D
7
7
D
D
5
D
D
5
8
8
D
D
6
D
D
6
9
9
D
D
D
D
7
1 0
10
7
D
D
1 1
11
0
0
0
× × ×
× × ×
× × ×
× × ×
× × ×