General Description

The HT16523 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.

Feature

• Logic voltage: 2.7V~5.5V

• High voltage: 40V (max.)

• 3-line serial interface

• Alphanumeric and symbolic display using integrated ROM

• 16 x 8-bit display data RAM (DDRAM)

• Integrated 5x7 dot ROM containing 248 character set

• 8 user-defned characters stored in character generator RAM (CGRAM)

• Additional symbol display data stored in 16 x 8-bit RAM (ADRAM)

• Display content: 16 columns by 1 row + 32 symbols - each column has 1 digit character with 2 symbols

• Supports display output: 35-segment & 16-grid

• Supports symbol output: 2-symbol & 16-grid

• Supports 2-pin general output port - static operation

• Fully integrated oscillator circuit

• 64-pin LQFP package

Applications

• Consumer products panel function control

• Industrial measuring instrument panel function control

• Other similar application panel function control

• Suitable for POS terminals or message displays