X9C104PIZ Electronic IC Chips Digitally Controlled Potentiometer

X9C102, X9C103, X9C104, X9C503

Digitally Controlled Potentiometer (XDCP™)

FEATURES

• Solid-state potentiometer

• 3-wire serial interface

• 100 wiper tap points

  —Wiper position stored in nonvolatile memory and recalled on power-up

• 99 resistive elements

  —Temperature compensated

  —End to end resistance, ±20%

  —Terminal voltages, ±5V

• Low power CMOS

  —V_CC = 5V

  —Active current, 3mA max.

  —Standby current, 750µA max.

• High reliability

  —Endurance, 100,000 data changes per bit

  —Register data retention, 100 years

• X9C102 = 1kΩ

• X9C103 = 10kΩ

• X9C503 = 50kΩ

• X9C104 = 100kΩ

• Packages

  —8 Ld SOIC and 8 Ld PDIP

• Pb-free plus anneal available (RoHS compliant)

DESCRIPTION

The X9Cxxx are Intersil digitally controlled (XDCP) potentiometers. The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a three-wire interface.

The potentiometer is implemented by a resistor array composed of 99 resistive elements and a wiper switching network. Between each element and at either end are tap points accessible to the wiper terminal. The position of the wiper element is controlled by the CS, U/D, and INC inputs. The position of the wiper can be stored in nonvolatile memory and then be recalled upon a subsequent power-up operation.

The device can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including:

  – control

  – parameter adjustments

  – signal processing

ABSOLUTE MAXIMUM RATINGS

Temperature under bias .................... -65°C to +135°C

Storage temperature ......................... -65°C to +150°C

Voltage on CS, INC, U/D and V_CC

   with respect to VSS .................................. -1V to +7V

Voltage on V_H/R_H and V_L/R_L

   referenced to V_SS ................................... -8V to +8V

ΔV = |V_H/R_H - V_L/R_L|

   X9C102 ...............................................................4V

   X9C103, X9C503, and X9C104 .........................10V

Lead temperature (soldering, 10 seconds)...... +300°C

I_W (10 seconds).................................................8.8mA

Power rating X9C102 ........................................16mW

Power rating X9C103/104/503 ..........................10mW

Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only; functional operation of the device (at these or any other conditions above those listed in the operational sections of this specification) is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

BLOCK DIAGRAM

PIN CONFIGURATION

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