HI-8020 / HI-8120

The HI-8020 / HI-8120 Series high voltage display drivers are functional replacements for the AMI S5420 and Micrel MIC8013/8014 series. These CMOS products are designed to drive liquid crystal displays by converting 5 volt serial data to parallel segment and backplane waveforms with amplitudes up to 30 volts. The HI-8020 & HI-8120 differ from the HI-8010 by only the shift register clock and chip select gating logic. The HI-8020 has TTL logic inputs whereas the HI-8120 has CMOS logic inputs.

Both devices can drive up to 38 segments and have 3 possible shift register data taps to provide options to cascade devices for larger displays. Data is clocked into a 38 stage shift register and parallel latched before the output translators by a Load input.

The HI-8020 & HI-8120 are available in a variety of ceramic and plastic packaging including DIP; leaded and leadless chip carriers; and J-lead and gull-wing quad flat packs.



  • 5 volt input translated to 30 volts or less
  • Pin-out adaptable to drive 30, 32 or 38 LCD segments
  • RC oscillator or high voltage (BP) clock input
  • TTL compatible inputs (HI-8020 only)
  • CMOS compatible inputs (HI-8120 only)
  • Low power consumption
  • Industrial (-40°C to +85°C) & Extended (-55°C to +125°C) temperature ranges
  • Pin for pin compatible with the Micrel MIC8010/8011 series and the AMI S4520 series drivers
  • Cascadable
  • Military level processing available


  • Dichroic Liquid Crystal Displays
  • Standard Liquid Crystal Displays
  • Vacuum Fluorescent Displays