PT6583 View Datasheet(PDF) - Princeton Technology

Part Name

Description

Manufacturer

PT6583

LCD Driver IC with Key Input Function

Princeton Technology 

LCD Driver IC with Key Input Function

Tel : 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

PT6583

1/2 Bias Application Circuit (for Normal LCD Panels)

+5V

FROM THE

CONTROLLER

TO THE

CONTROLLER

VDD

VSS

TEST

OSC

COM1

COM2

COM3

COM4

P1/SG1

(P1)

General Purpose

(P2) Output Ports

(Used for functions i.e.

(P4) backlight control)

VDD1

VDD2

C

/RST

CE

CLK

DI

DO

P4/SG4

SG5

SG6

SG54

SG55

SG56

SG57

=

KEY MATRIX

(UP TO 30 KEYS)

Notes:

1. A capacitor can be connected to the power supply line to make the Power Supply Voltage

VDD rise time (when power is applied) and the power supply Voltage VDD fall time (when

power drops) are at least 1ms when PT6583 is reset via VDET.

2. If the /RST Pin is not used to initiate the System Reset Function, it must be connected to

VDD.

3. The DO Pin is an open-drain output and therefore needs a pull-up resistor. This resistor must

be between 1k to 10k Ohms. The value of this resistor must be in accordance with that the

capacitance of the external wiring so that the signal waveforms are in proper form.

4. C>0.047uF

PT6583 ver 1.0

Page 3

Updated Dec. 2001

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