Tel: 886-2-6626288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
VFD Driver/Controller IC with Character RAM
PT6302
DESCRIPTION
PT6302 is a dot matrix VFD Driver/Controller IC utilizing CMOS Technology specially designed to
display characters, numerals, and symbols. PT6302 provides 35 dot matrix plus 2 additional segment
drivers and 16 grid drivers. 248 types of character data (CGROM), 8 types of character data (CGRAM),
16 display digits x 2 bits symbol data, 16 display digits x 8 bits register for character data display and 2
general output bits for static operation are provided. Pin assignments and application circuit are
optimized for easy PCB layout and cost saving advantages.
FEATURES
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CMOS Technology
Logic Power Supply: VDD = 3.3 V
±
10% or 5.0 V
±
10%
VFD Drive Power Supply: VEE = -20V to -30V
Built-in Oscillation Circuit (External RC)
One-Byte Instruction Execution (not including Data Write to RAM)
Microcontroller Interface
Display Contents:
o
Character Generator ROM (CGROM): 5x7 Dots (248 Character Data Types)
o
Character Generator RAM (CGRAM): 5x7 Dots (8 Character Data Types)
o
Additional Data RAM (ADRAM): 16 Display Digits x 2 Bits (Symbol Data)
o
Data Control RAM (DCRAM): 16 Display Digits x 8 Bits (Character Data Display
Register)
o
General Output Port: 2 Bits (Static Operation)
Display Control Function:
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Display Digits : 9 to 16 Digits
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Display Duty (Contrast Adjustment) : 8 stages
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All Display Lights : ON/OFF Mode
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APPLICATIONS
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Microcontroller Peripheral Device
Audio/Video Equipment
PT6302 v1.4
-1-
April, 2004
Analog electronics
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EEWORLD
