MCP9802 Microchip Technology Inc., MCP9802 Datasheet - Page 18

• Manufacturer Part Number: MCP9802
• Description: 2-wire High-accuracy Temperature Sensor
• Manufacturer: Microchip Technology Inc.

MCP9800/1/2/3
5.2
FIGURE 5-2:
DS21909B-page 18
S = START Condition
P = STOP Condition
Read 1-byte Data
Read 2-byte Data
SCLK
SDA
SCLK
SDA
Graphical Representation of the
MCP9800/1/2/3 Serial Protocols
SCLK
SDA
S
1
1
S
2
0
1
1
Address Byte
Read 1-byte and 2-byte data from a Register.
S
3
0
2
0
SCLK
SDA
1
1
4
Address Byte
1
0
3
2
0
A
5
2
4
1
Address Byte
3
0
6
A
1
5
A
2
4
1
A
7
0
S
A
6
1
MCP980X
5
A
W
2
8
1
1
7
A
0
MCP980X
A
6
1
A
C
K
2
0
8
R
Address Byte
A
7
0
1
0
3
0
MCP980X
A
C
K
W
8
2
0
4
1
15
1
D
A
C
K
3
0
5
A
2
14
2
D
Pointer
1
0
4
0
A
6
1
13
3
D
MSB Data
2
0
5
0
A
7
0
12
4
D
MCP980X
3
0
6
0
8
R
11
Pointer
D
5
4
0
7
P
1
A
C
K
10
6
D
MCP980X
5
0
8
P
0
1
D
7
7
D
9
6
0
A
C
K
D
2
6
8
D
8
Master
7
P
1
D
3
5
A
C
K
MCP980X
8
Data
P
0
D
4
4
1
D
7
A
C
K
D
5
3
D
2
6
D
6
2
D
3
5
 2004 Microchip Technology Inc.
LSB Data
D
1
7
D
4
4
8
D
0
D
Master
3
5
N
A
K
D
2
6
P
D
7
1
8
D
0
Master
N
A
K
P