PT6520 datasheet(7/27 Pages) PTC

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PT6520 V1.6

- 7 -

February, 2006

LCD Driver IC

PT6520

PIN DESCRIPTION

Pin Name

Function

DB0 ~ DB7

Data input

Selection display data or instructions.

High: Display data. Low: Instruction.

RES

Reset the system and selects the interface type for a 68 port/80 port

MPU.

High: 68 port MPU interface.

Low: 80 port MPU interface.

(edge trigger)

OSC1

Oscillation input pin

E/RD

Read/Write Enable signal when a 68 port MPU is connected.

(Active-Low read enable signal when an 80 port MPU is connected)

RW/WR

Read/Write select signal when a 68 port MPU is connected.

High: read select. Low: write select.

(Active-Low write enable input when an 80 port MPU is connected.

Rising edge sensing)

OSC2

Oscillation output pin

LCD Frame (AC-conversion) signal input/output

SEG0 ~ SEG60

Segment output for driving the LCD

COM0 ~ COM15

Common output for driving the LCD

COM31 ~COM16

Common output for driving the LCD

M/S

Master/Slave select signal

VDD

5V power supply

VSS

0V power supply (GND level)

V1, V2, V3, V4, V5 Power supplies for driving the LCD, VDD>V1>V2>V3>V4>V5

Note:

1. This is an example of PT6520 family pin assignment. The modified pin names are

given below.

Pin/Pad Number

Product Name

96 ~ 100, 1~ 11

PT6520

OSC1

OSC2

COM0 ~ COM15

M/S

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