tcn75a Microchip Technology Inc., tcn75a Datasheet - Page 16

• Manufacturer Part Number: tcn75a
• Description: 2-wire Serial Temperature Sensor
• Manufacturer: Microchip Technology Inc.

TCN75A
FIGURE 5-3:
Section 4.0 “Serial Communication”).
DS21935C-page 16
SDA
SCL
• Writing to the CONFIG Register to change the resolution to 0.0625°C <0110 0000>b.
• Reading the CONFIG Register.
SDA
SCL
SDA
SCL
S
1
1
S
2
0
S
1
1
Address Byte
Timing Diagram for Writing and Reading from the Configuration Register (See
0
3
1
1
2
0
4
1
Address Byte
2
0
3
0
Address Byte
5
A
2
3
0
4
1
A
6
1
4
1
5
A
2
7
A
0
A
5
2
A
6
1
TCN75A
W
8
6
A
1
0
1
A
7
0
TCN75A
A
C
K
A
7
0
2
1
8
R
TCN75A
W
1
0
8
3
1
MSB Data
A
C
K
2
0
A
C
K
CONFIG Pointer
4
0
1
0
3
0
1
0
0
5
2
1
4
0
2
0
CONFIG Pointer
6
0
3
1
5
0
3
0
7
0
Data
4
0
TCN75A
6
0
4
0
8
0
0
5
7
0
5
0
A
C
K
6
0
TCN75A
8
1
6
0
1
P
7
0
A
C
K
7
0
8
0
TCN75A
8
1
N
A
K
A
C
K
P
Note:
© 2006 Microchip Technology Inc.
It is not necessary to
select
pointer if it was set from
the previous read/write
(see Section 4.1.1).
the
register