HT16525 -- 5x8 Dot Character VFD Controller & Driver

General Description

The HT16525 device is a dot matrix Vacuum Fluorescent Display, VFD, controller/driver which displays characters, numerics and symbols. Dot matrix VFD driving signals are received via a 3-line serial interface driven by an externally connected microcontroller. The display data is stored in the internal ROM and RAM for character and symbol display.

Features

  • Logic voltage : 2.7V~5.5V
  • High voltage: 60V (max.)
  • 3-line serial interface
  • Alphanumeric and symbolic display using integrated ROM
  • 24 x 8-bit display data RAM (DDRAM)
  • Integrated 5x8 dot ROM containing 248 character set
  • 8 user-defined characters stored in character data RAM (CGRAM)
  • Additional symbol display data stored in 24 x 8-bit RAM (ADRAM)
  • Display content:
    24 columns by 1 row + 48 symbols - each column has 1 digit character with 2 symbols
  • Supports display output: 40-segment & 24-grid
  • Supports symbol output: 2-symbol & 24-grid
  • Supports 2-pin general output port - static operation
  • Fully integrated oscillator circuit
  • 80-pin LQFP package

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