HT16523
5x7 Dot Character VFD
Controller & Driver
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-defined 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
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.
Ordering Information
Part Number
HT16523-002
HT16523-003
Information
64-pin LQFP package with ROM code 002
64-pin LQFP package with ROM code 003
Rev. 1.00
1
January 18, 2012
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
