MCP4021-202E/SN Microchip Technology, MCP4021-202E/SN Datasheet - Page 26

• Manufacturer Part Number: MCP4021-202E/SN
• Description: IC DGTL POT 2.1K 1CH 8SOIC
• Manufacturer: Microchip Technology

Specifications of MCP4021-202E/SN

• Memory Type: Non-Volatile
• Taps: 64
• Resistance (ohms): 2.1K
• Number Of Circuits: 1
• Temperature Coefficient: 150 ppm/°C Typical
• Interface: Up/Down
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Resistance In Ohms: 2.10K
• End To End Resistance: 2.1kohm
• Resistance Tolerance: ± 20%
• No. Of Steps: 64
• Supply Voltage Range: 2.7V To 5.5V
• Control Interface: Serial
• No. Of Pots: Single
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP4XXXDM-DB - BOARD DAUGHTER DIGIPOT MCP4XXXMCP402XEV - BOARD EVAL FOR MCP402X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

MCP4021/2/3/4
3.6
The CS pin is the chip select input. Forcing the CS pin
to V
can increment and decrement the wiper. Depending on
the command, the wiper may (or may not) be saved to
non-volatile memeory (EEPROM). Forcing the CS pin
to V
These commands can increment and decrement the
wiper and enable or disable the WiperLock technology.
The wiper is saved to non-volatile memory (EEPROM).
The CS pin has an internal pull-up resistor. The resistor
will become “disabled” when the voltage on the CS pin
is below the V
is “floating”, the CS pin will be pulled to the V
(serial communication (the U/D pin) is ignored). And
when the CS pin is driven low (V
becomes very large to reduce the device current
consumption when serial commands are occurring.
See
DS21945E-page 26
IL
IHH
Figure 2-4
enables the serial commands. These commands
Chip Select (CS)
enables the high-voltage serial commands.
IH
for additional information.
level. This means that when the CS pin
IL
), the resistance
IH
level
3.7
The U/D pin input is used to increment or decrement
the wiper on the digital potentiometer. An increment
moves the wiper one step toward terminal A, while a
decrement moves the wiper one step toward
terminal B.
Increment/Decrement (U/D)
© 2006 Microchip Technology Inc.