MCP4017 Microchip Technology Inc., MCP4017 Datasheet - Page 40

• Manufacturer Part Number: MCP4017
• Description: 7-bit Single I 2 C? Digital Pot With Volatile Memory In Sc70
• Manufacturer: Microchip Technology Inc.

MCP4017/18/19
FIGURE 5-14:
DS22147A-page 40
Write 1 Byte
Write 2 Bytes
Read 1 Byte
Read 2 Bytes
Master
MCP4017/18/19
I
Master
MCP4017/18/19
I
Master
MCP4017/18/19
I
Master
MCP4017/18/19
I
2
2
2
2
C Bus
C Bus
C Bus
C Bus
Note 1: For Write Commands, the MSb of the Data Byte is a don’t care since the wiper register is only 7-bits wide.
S Slave Address
S 0 1 0 1 1 1 1 0 1 x d d d d d d d 1 P
S 0 1 0 1 1 1 1 0 0 x d d d d d d d 0 P
S Slave Address
S 0 1 0 1 1 1 1 0 1 x d d d d d d d 1 x d d d d d d d 1 P
S 0 1 0 1 1 1 1 0 0 x d d d d d d d 0 x d d d d d d d 1 P
S Slave Address
S 0 1 0 1 1 1 1 1 1
S 0 1 0 1 1 1 1 1 0 0 d d d d d d d 1 P
S Slave Address
S 0 1 0 1 1 1 1 1 1
S 0 1 0 1 1 1 1 1 0 0 d d d d d d d 0 0 d d d d d d d 1 P
I
2
C Communication Behavior.
R
/
W A Data Byte
R
/
W A Data Byte
R
/
W A Data Byte
R
/
W A Data Byte
0 0 d d d d d d d 1
0 0 d d d d d d d 1 0 d d d d d d d 1
0
0
(1)
(1)
A P
1 P
A Data Byte
0
A P
0
A Data Byte
0
(1)
© 2009 Microchip Technology Inc.
A P
1 P
A P
0