MCP4251-104E/P Microchip Technology, MCP4251-104E/P Datasheet - Page 35

• Manufacturer Part Number: MCP4251-104E/P
• Description: IC DGTL POT 100K 2CH 14DIP
• Manufacturer: Microchip Technology

Specifications of MCP4251-104E/P

• Taps: 257
• Resistance (ohms): 100K
• Number Of Circuits: 2
• Temperature Coefficient: 150 ppm/°C Typical
• Memory Type: Volatile
• Interface: SPI Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Resistance In Ohms: 100K
• End To End Resistance: 100kohm
• Track Taper: Linear
• No. Of Steps: 257
• Resistance Tolerance: ± 20%
• Supply Voltage Range: 1.8V To 5.5V
• Control Interface: Serial, SPI
• No. Of Pots: Single
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MCP4251-104-E/P; MCP4251-104-E/P

MCP413X/415X/423X/425X
4.2.1.2
Terminal Control (TCON) Register
This register contains 8 control bits. Four bits are for
Wiper 0, and four bits are for Wiper 1.
Register 4-2
describes each bit of the TCON register.
The state of each resistor network terminal connection
is individually controlled. That is, each terminal
connection (A, B and W) can be individually connected/
disconnected from the resistor network. This allows the
system to minimize the currents through the digital
potentiometer.
The value that is written to this register will appear on
the resistor network terminals when the serial
command has completed.
On a POR/BOR this register is loaded with 1FFh
(9-bits), for all terminals connected. The Host
Controller needs to detect the POR/BOR event and
then update the Volatile TCON register value.
© 2008 Microchip Technology Inc.
DS22060B-page 35