MCP4441-104E/ST Microchip Technology, MCP4441-104E/ST Datasheet - Page 58

• Manufacturer Part Number: MCP4441-104E/ST
• Description: IC DGTL POT 129TAPS QUAD 20TSSOP
• Manufacturer: Microchip Technology

Specifications of MCP4441-104E/ST

• Taps: 129
• Resistance (ohms): 100K
• Number Of Circuits: 4
• Temperature Coefficient: 150 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• End To End Resistance: 100kohm
• Track Taper: Linear
• Resistance Tolerance: ± 20%
• No. Of Steps: 129
• Supply Voltage Range: 2.7V To 5.5V
• Control Interface: I2C
• No. Of Pots: Quad
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP444X/446X
6.2.7
The General Call is a method that the “Master” device
can communicate with all other “Slave” devices. In a
Multi-Master application, the other Master devices are
operating in Slave mode. The General Call address
has two documented formats. These are shown in
Figure
figure as well.
This will allow customers to have multiple I
Potentiometers on the bus and have them operate in a
synchronous fashion (analogous to the DAC Sync pin
functionality). If these MCP44XX 7-bit commands
conflict with other I
customer will need two I
devices are on the correct bus for their desired
application functionality.
Dual Pot devices can not update both Pot0 and Pot1
from a single command. To address this, there are
General Call commands for the Wiper 0, Wiper 1, and
the TCON registers.
Table 6-3
commands are specified by the I
are not applicable to the MCP44XX (so command is
Not Acknowledged) The MCP44XX General Call
Commands are Acknowledge. Any other command is
Not Acknowledged.
DS22265A-page 58
Note:
6-11. We have added a MCP44XX format in this
shows the General Call Commands. Three
GENERAL CALL
Only one General Call command per issue
of the General Call control byte. Any
additional General Call commands are
ignored and Not Acknowledged.
2
C devices on the bus, then the
2
C busses and ensure that the
2
C specification and
2
C Digital
TABLE 6-3:
‘1000 00d’b Write Next Byte (Third Byte) to Volatile
‘1001 00d’b Write Next Byte (Third Byte) to Volatile
‘1100 00d’b Write Next Byte (Third Byte) to TCON
‘1000 010’b
‘1000 011’b
‘1001 010’b
‘1001 011’b
‘1000 100’b
‘1000 101’b
‘1001 100’b
‘1001 101’b
Note 1:
Command
(1, 2, 3)
7-bit
or
or
or
or
2:
3:
Any other code is Not Acknowledged.
These codes may be used by other
devices on the I
The 7-bit command always appends a “0”
to form 8-bits.
“d” is the D8 bit for the 9-bit write value.
Wiper 0 Register
Wiper 1 Register
Register
Increment Wiper 0 Register
Increment Wiper 1 Register
Decrement Wiper 0 Register
Decrement Wiper 1 Register
GENERAL CALL COMMANDS
© 2010 Microchip Technology Inc.
2
Comment
C bus.