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.

Feature
• 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

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