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PDF PT6579 Data sheet ( Hoja de datos )
| Número de pieza | PT6579 | |
| Descripción | General Purpose LCD Driver IC | |
| Fabricantes | PTC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PT6579 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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DESCRIPTION
PT6579 is an LCD Driver IC which can drive up to 200
segments. It can be used for frequency display in
microprocessor-controlled radio receiver and in other
display applications. PT6579 supports both 1/3 duty,
and 1/4 duty drive. Pin assignment and application
circuit are optimized for easy PCB layout and cost
saving advantages.
APPLICATION
• Electronic equipment with LCD display
BLOCK DIAGRAM
PT6579
General Purpose LCD Driver IC
FEATURES
• CMOS technology
• Up to 153 segments for 1/3 duty and 200
segments for 1/4 duty drive can be displayed
• 1/3 Duty - 1/2 Bias and 1/3 Duty - 1/3 Bias drive
techniques
• 1/4 Duty - 1/2 Bias and 1/4 Duty - 1/3 Bias drive
techniques
• Power saving mode and all segments OFF
function
• Direct display of display data without using a
decoder
• RC oscillation circuit
• Power supply voltage: 4.5V to 6V
• CMOS/TTL compatible logic input pins
• LCD drive bias voltage can be provided internally
or externally
• On-Chip voltage detection type reset circuit
• Programmable PWM signal output pins
• Available in 64 pins LQFP
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
For:Natertech
Free Datasheet http://www.0PDF.com
1 page  
PT6579
PIN DESCRIPTION
Pin Name
I/O Active
Description
Pin No.
SG1 to SG50
O
- Segment output pins
1 to 50
COM4/SG51
COM3 to COM1
VDD
O
-
VDD1
I
VDD2
I
-
Common driver output pins
The COM4/ SG51 pin can be used as a segment output in 1/3 duty
51 to 54
-
Power supply
Supply voltage in the range 4.5 to 6.0V
55
Used for the 2/3 Bias Voltage when the Bias Voltage is provided
- externally.
56
Connect to VDD2 when 1/2 bias is used
Used for the 1/3 Bias Voltage when the Bias Voltage is provided
- externally.
Connect to VDD1 when 1/2 Bias is used
57
VSS
- - Ground
58
CE I H Chip enable pin
59
CLK I
Synchronization clock pin
60
DI I - Transfer data input pin
61
P1 to P3 O H PWM output pins
62 to 64
V1.1
5
For:Natertech
September, 2009
Free Datasheet http://www.0PDF.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PT6579.PDF ] | |
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