MCP4142 Microchip Technology Inc., MCP4142 Datasheet - Page 43

• Manufacturer Part Number: MCP4142
• Description: 7/8-bit Single/dual Spi Digital Pot With Volatile Memory
• Manufacturer: Microchip Technology Inc.

FIGURE 6-5:
SPI Waveform (Mode 1,1).
FIGURE 6-6:
SPI Waveform (Mode 0,0).
© 2007 Microchip Technology Inc.
SCK
Write to
SSPBUF
SDI
Input
Sample
SCK
Write to
SSPBUF
SDI
Input
Sample
CS
SDO
CS
SDO
V
Note 1: The SDI pin will read the state of the SDI pin which will be the SDO signal, unless overdriven
Note 1: The SDI pin will read the state of the SDI pin which will be the SDO signal, unless overdriven
V
IH
IH
AD3
bit15 bit14 bit13 bit12
V
V
V
V
IL
IL
IHH
IHH
AD3
bit15 bit14 bit13 bit12
AD2
16-Bit Read Command for Devices with SDI/SDO multiplexed -
16-Bit Read Command for Devices with SDI/SDO multiplexed -
AD2
AD1
AD1
AD0
AD0
C1
1
C1
C0
1
1
bit9
CMDERR bit
MCP414X/416X/424X/426X
(1)
C0
X
1
bit9
bit8
CMDERR bit
D9
D8
(1)
(1)
bit7
bit8
(1)
D8
D7
(1)
bit6
bit7
(1)
D7
(1)
D6
bit5
bit6
(1)
D6
(1)
D5
bit5
bit4
(1)
(1)
D5
D4
bit3
bit4
(1)
D4
(1)
D3
bit2
bit3
(1)
D3
(1)
D2
bit1
bit2
(1)
(1)
D1
D2
bit1
bit0
D1
(1)
(1)
D0
DS22059A-page 43
bit0
D0
(1)