GPL10B

© Generalplus Technology Inc.

Proprietary & Confidential

4

May 29, 2014

Version: 1.5

4. SIGNAL DESCRIPTIONS

Mnemonic

PIN No.

Type

Description

SEG31 - 0

5 - 36

O

LCD driver segment output

COM3 - 0

37- 40

O

LCD driver common output

IOEF5 - 2

IOEF1 - 0

4 - 1

54 - 53

I

INPUT port (also for key wake-up input)

IOCD3 - 0

49 - 46

I/O

I/O port

ROSC

51

I

R-OSC input, connect to VDD through a resistor

RESET

50

I

External reset input

AUD

42

O

Tone output

X32I

45

I

32.768KHz crystal input/R oscillator input

X32O

44

O

32.768KHz crystal output

TEST

52

I

Test input

VDD

43

I

Power input

VSS

41

I

Ground input

4.1. PAD Assignment

This IC substrate should be connected to VSS

Note1: To ensure that the IC functions properly, please bond all of VDD and VSS pins.

Note2: The 0.1uF capacitor between VDD and VSS should be placed to IC as close as possible.