概览
描述
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The Intersil X93256 is a dual digitally controlled potentiometer (XDCP). The device consists of two resistor arrays, wiper switches, a control section, and nonvolatile memory. The wiper positions are controlled by individual Up/Down interfaces. A potentiometer is implemented by a resistor array composed of 31 resistive elements and a wiper switching network. The position of each wiper element is controlled by a set of independent 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. Each potentiometer is connected as a three-terminal variable resistor and can be used in a wide variety of applications including:
- Bias and Gain control
- LCD Contrast Adjustment
特性
- Dual solid-state potentiometers
- Individual Up/Down interfaces
- 32 wiper tap points per potentiometer
- Wiper position stored in nonvolatile memory and recalled on power-up
- 31 resistive elements per potentiometer
- Temperature compensated
- Maximum resistance tolerance of ±25%
- Terminal voltage, 0 to VCC
- Low power CMOS
- VCC = 2.7V to 5.5V.
- Active current, 200µA typical per potentiometer
- Standby current, 4µA max per potentiometer
- High reliability
- Endurance 200,000 data changes per bit
- Register data retention, 100 years
- RTOTAL value = 12.5kΩ, 50kΩ
- Package
- 14 Ld TSSOP
- Pb-free available (RoHS compliant)
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