MCP4331 Microchip Technology Inc., MCP4331 Datasheet - Page 46

• Manufacturer Part Number: MCP4331
• Description: 7/8-bit Quad Spi Digital Pot With Non-volatile Memory
• Manufacturer: Microchip Technology Inc.

MCP434X/436X
FIGURE 6-4:
Technology) - SPI Waveform with PIC MCU (Mode 1,1).
FIGURE 6-5:
Technology) - SPI Waveform with PIC MCU (Mode 0,0).
DS22233A-page 46
SCK
SCK
Write to
SSPBUF
SDI
Input
Sample
CS
Write to
SSPBUF
SDO
SDI
Input
Sample
CS
SDO
V
V
IH
IH
V
V
V
V
IHH
IL
8-Bit Commands (Increment, Decrement, Modify Write Protect or WiperLock
IL
8-Bit Commands (Increment, Decrement, Modify Write Protect or WiperLock
IHH
AD3
bit7
AD3
bit7
bit7
bit7
AD2
AD2
bit6
bit6
AD1
AD1
bit5
bit5
AD0
AD0
bit4
bit4
C1
C1
bit3
bit3
C0
C0
bit2
bit2
X
© 2009 Microchip Technology Inc.
X
CMDERR bit
“1” = Valid Command
“0” = Invalid Command
bit1
CMDERR bit
“1” = Valid Command
“0” = Invalid Command
bit1
bit0
X
bit0
X
bit0
bit0