MCP4131 MICROCHIP [Microchip Technology], MCP4131 Datasheet - Page 45

• Manufacturer Part Number: MCP4131
• Description: 7/8-Bit Single/Dual SPI Digital POT with Volatile Memory
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 6-5:
SPI Waveform (Mode 1,1).
FIGURE 6-6:
SPI Waveform (Mode 0,0).
© 2008 Microchip Technology Inc.
SSPBUF
SSPBUF
Sample
Sample
Write to
Write to
SCK
SDI
Input
SCK
SDI
Input
CS
SDO
CS
SDO
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
V
IH
IH
2: V
2: V
operation.
operation.
IHH
IHH
AD3
bit15 bit14 bit13 bit12
V
V
V
V
IHH
IL
IHH
IL
is supported for compability with the MCP414X/6X and MCP424X/6X devices high voltage
is supported for compability with the MCP414X/6X and MCP424X/6X devices high voltage
AD3
bit15 bit14 bit13 bit12
AD2
(1)
(1)
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
MCP413X/415X/423X/425X
(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
DS22060B-page 45
bit0
D0
(1)