pt6553 Princeton Technology Corp., pt6553 Datasheet

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pt6553

Manufacturer Part Number
pt6553
Description
Lcd Driver Ic With Key Input Function
Manufacturer
Princeton Technology Corp.
Datasheet

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LCD Driver IC with Key Input Function
DESCRIPTION
PT6553 is an LCD Driver IC providing key scan circuitry which can accept up to a maximum of 30 keys,
thereby, reducing printed circuit board wiring. It can drive up to 126 segments and is capable of
controlling up to 4 general purpose output ports. The reset circuit provides on-chip voltage detection
making it possible to prevent incorrect displays. Pin assignments and application circuit are optimized
for easy PCB layout and cost saving advantages.
FEATURES
APPLICATIONS
PT6553 V1.7
• Up to 126 segments outputs
• Up to 4 general purpose output ports
• Key input function (up to 30 Keys)
• 1/3 duty - 1/2 bias and 1/3 duty - 1/3 bias drive techniques
• Sleep mode and all segments off function
• Direct display of display data without using a decoder
• On-chip voltage-detection type reset circuit
• RC oscillation circuit
• Cellular phone
• Data bank, Organizer
• Electronic dictionary/Translator
• P.D.A.
• P.O.S.
• Information appliance
• Caller ID
• Pager
• Electronic equipment with LCD display
- 1 -
URL: http://www.princeton.com.tw
Fax: 886-2-29174598
Tel: 886-2-66296288
November, 2007
PT6553

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pt6553 Summary of contents

Page 1

... LCD Driver IC with Key Input Function DESCRIPTION PT6553 is an LCD Driver IC providing key scan circuitry which can accept maximum of 30 keys, thereby, reducing printed circuit board wiring. It can drive up to 126 segments and is capable of controlling general purpose output ports. The reset circuit provides on-chip voltage detection making it possible to prevent incorrect displays ...

Page 2

... KI1 50 KI2 51 KI3 52 KI4 53 KI5 54 TEST 55 VDD 56 VDD1 57 VDD2 58 VSS 59 OSC CLK PT6553 V1.7 P 6553 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6553 32 SG32 31 SG31 30 SG30 SG29 29 SG28 28 27 SG27 26 SG26 25 SG25 SG24 24 SG23 23 SG22 22 21 ...

Page 3

... Used with the backlight controller or other ciucuit. Notes: 1. Connect a capacitor to the power supply line so that the when the PT6553 is reset by the V power supply V rise time when power is applied and the power supply voltage V DD power drops are both at least 1ms. ...

Page 4

... LCD Driver IC with Key Input Function ORDER INFORMATION Valid Part Number PT6553-Q (L) PT6553-LQ (L) Notes: 1. (L), (C) or (S) = Lead Free. 2. The Lead Free mark is put in front of the date code. PT6553 V1.7 Package Type 64 Pins, QFP 64 Pins, LQFP - 4 - Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw ...

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