PT6321-LQ PTC [Princeton Technology Corp], PT6321-LQ Datasheet

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PT6321-LQ

Manufacturer Part Number
PT6321-LQ
Description
Fluorescent Display Tube Controller Driver
Manufacturer
PTC [Princeton Technology Corp]
Datasheet
Tel: 886-66296288
DESCRIPTION
The PT6321 is a dot matrix fluorescent display tube
controller driver IC which displays characters,
numerics and symbols. Dot matrix fluorescent display
tube drive signals are generated by serial data sent
from a microcontroller. A display system is easily
realized by internal ROM and RAM for character
display.
Fax: 886-29174598
http://www.princeton.com.tw
Fluorescent Display Tube Controller Driver
FEATURES
• Logic power supply(V
• Fluorescent display tube drive power supply (V
• VFD driver output current (VFD driver output can
• General output port output current
• Content of display
• Display control function
• 3 interfaces with microcontroller: DA, /CS, /CP(4
• 1-byte instruction execution (excluding data write to
• Built-in oscillation circuit (external C and R)
- Segment driver (SEG1 to SEG35): -5.0mA
(V
- Segment driver (AD1 to AD4): -10.0mA (V
20V~60V
directly be connected to the fluorescent display tube.
No pull-down resistor is required.)
interfaces if /RESET is added)
RAM)
80-pin plastic LQFP (LQFP80-P-1414-0.65-K)
- Grid driver (COM1 to COM24): -20.0mA (V
- Output driver (P1-4): ±1.0mA (V
- CGROM: 5x7 dots, 240 types (character data)
- CGRAM: 5x7 dots, 16 types (character data)
- ADRAM: 24 (display digit) x 4 bits (symbol data)
- DCRAM: 24 (display digit) x 8 bits (register for
character data display)
- General output port: 4 bits (static mode)
- Display digit: 9 to 24 digits
- Display duty (contrast adjustment): 8 stages
- All lights ON/OFF
DISP
2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
=60V)
DD
±2.0mA (V
): 3.3V±10% / 5.0V±10%
DD
DD
=5.0V±10%)
=3.3V±10%)
PT6321
DISP
DISP
DISP
=60V)
=60V)
):

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PT6321-LQ Summary of contents

Page 1

... DESCRIPTION The PT6321 is a dot matrix fluorescent display tube controller driver IC which displays characters, numerics and symbols. Dot matrix fluorescent display tube drive signals are generated by serial data sent from a microcontroller. A display system is easily realized by internal ROM and RAM for character display ...

Page 2

... BLOCK DIAGRAM V1.0 2 PT6321 August, 2009 ...

Page 3

... APPLICATION CIRCUIT Notes: *1. The V voltage depends on the fluorescent display tube used. Adjust the value of the constants R3 and ZD to the V DISP *2. The value of R1 & C1 depend on PT6321 supply voltage of V *3. R2=1KΩ, C2=0.1µF V1.0 (V =5V: R1=3.3KΩ, C1=47pF; V =3.3V: R1=3.3KΩ, C1=39pF PT6321 voltage used. ...

Page 4

... ORDER INFORMATION Valid Part Number PT6321-LQ PIN CONFIGURATION V1.0 Package Type 80 Pins, LQFP 4 PT6321 Top Code PT6321-LQ August, 2009 ...

Page 5

... Logic Voltage Pin General port output. Output of these pins in static operation, so these pins can drive the LED. I >–2.0mA OH 5 (RC oscillation circuit) See Application Circuit) (Circuit when R and C are connected externally) See application Circuit August, 2009 PT6321 Pin No 1,2,79,80 3-37 38,78 39-62 63, ...

Page 6

... PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.0 6 PT6321 August, 2009 ...

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