MCP42XXDM-PTPLS Microchip Technology, MCP42XXDM-PTPLS Datasheet - Page 31

• Manufacturer Part Number: MCP42XXDM-PTPLS
• Description: BOARD DAUGHTER PICTAIL MCP42XX
• Manufacturer: Microchip Technology
• Type: Other Power Managementr

Specifications of MCP42XXDM-PTPLS

• Main Purpose: Digital Potentiometer
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP42XX
• Primary Attributes: 1 Dual Pot, 10k Ohms, 257 Taps, SPI Interface
• Secondary Attributes: 2.7 ~ 5.5 V, 150 ppm/°C
• Product: Power Management Modules
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC24
• Silicon Core Number: MCP42XX
• Silicon Family Name: PICtail
• Kit Contents: Board
• For Use With/related Products: MCP42x
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: PIC24 Explorer 16 Demo Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

© 2008 Microchip Technology Inc.
TABLE 2-4:
16
17
Note 1:
Step
Now write values to the TCON register (bit 7 to
bit 4) and monitor the effects on the VW1 pin.
Write assorted values to the devices memory
locations and then read the values to see what
is present. If the write is to Non-Volatile mem-
ory, power down (unplug) the MCP42XX PICtail
Plus Daughter Board and then power up to
evaluate if the non-volatile memory value is
retained.
A Digital Multi-Meter (DMM) configured to measure voltage may be used instead of
an oscill0scope.
DEMO STEPS USING THE PICDEM HPC EXPLORER DEMO
BOARD (CONTINUED)
Action
Installation and Operation
The different Potentiometer termi-
nals (A1, W1, and B1), will be either
connected or disconnected depend-
ing on the value.
TCON =
‘x 1110 xxxx’b
‘x 1011 xxxx’b
‘x 1101 xxxx’b
‘x 0111 xxxx’b
‘x 1111 xxxx’b
Result
Result
B1 open,
W1 pulled high
A1 open,
W1 pulled low
W1 floating
A1 open,
W1 connected to
B1 (Zero-Scale)
All terminals con-
nected to their
respective pin
DS51759A-page 27