MCP46XXEV Microchip Technology, MCP46XXEV Datasheet - Page 18

• Manufacturer Part Number: MCP46XXEV
• Description: MCP46XX Evaluation Board DEVTOOL - Analog
• Manufacturer: Microchip Technology
• Series: -r

Specifications of MCP46XXEV

• Main Purpose: Digital Potentiometer
• Embedded: No
• Utilized Ic / Part: MCP4661
• Primary Attributes: Devices Supported MCP4631, Mcp4641, Mcp4651, MCP4661
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP46XXEV Evaluation Board User’s Guide
FIGURE 2-3:
DS51929A-page 18
S
0 1 0
Fixed
Address
Control Byte
1
2.4.2
To make variations to the commands sent to the MCP4661 device (from the commands
shown in the demo section), one must know the device memory map (see Table 2-3)
and the command formats (see Figure 2-3 through Figure 2-5). For additional device
operational information, refer to the MCP4661 device data sheet (DS22107).
TABLE 2-3:
MCP46XX I
Note 1:
06h - 0Fh Data EEPROM
Address
A2 A1 A0 0
Variable
Address
00h
01h
02h
03h
04h
05h
2:
The MCP4661 Device
When an EEPROM write is active, these are invalid commands and will generate
an error condition. The user should use a read of the STATUS register to determine
when the write cycle has completed. To exit the error condition, the user must take
the CS pin to the V
This command on this address will generate an error condition. To exit the error
condition, the user must take the CS pin to the V
state (V
Write bit
Volatile Wiper 0
Volatile Wiper 1
Non-Volatile Wiper 0 EEPROM
Non-Volatile Wiper 1 EEPROM
Volatile
TCON Register
Status Register
2
C Single Write Command Format.
A
MEMORY MAP AND THE SUPPORTED COMMANDS
Function
IL
AD AD AD AD
3
or V
Device
Memory
Address
2
WRITE Command
IHH
1
).
IH
0
level and then back to the active state (V
Command
EEPROM
Memory
0
Type
RAM
RAM
RAM
RAM
0 x D8 A
Increment, Decrement
Increment, Decrement
Allowed Commands
Read, Write
Read, Write
Read, Write
Read, Write,
Read, Write,
Read, Write
D7 D6 D5 D4
Write “Data” bits
Read
Write Data bits
IH
level and then back to the active
(1)
(1)
(1)
© 2010 Microchip Technology Inc.
D3
D2 D1 D0 A P
Increment, Decrement
Increment, Decrement
Increment, Decrement
Increment, Decrement
IL
Write, Increment,
Commands
or V
Disallowed
Decrement
IHH
—
—
).
(2)