GPES220B2

© Generalplus Technology Inc.

Proprietary & Confidential

4

JAN. 06, 2009

Version: 1.1

4. SIGNAL DESCRIPTIONS

Mnemonic

PIN No.

Type

Description

TG4 - 1

2 - 5

I

Trigger input pins

TEST

11

I

TEST pin

STOP7 - 6

19 - 18

O

Open drain output pins / LED drive pins

STOP5 - 0

17 - 12

O

Output signals pins

AUDP, AUDN

9, 8

O

A pair of PWM outputs for speak

ROSC

1

I

Oscillator frequency control pin

VDD

20

I

Digital circuit power supply pin

AVDD

10

I

PWM power supply pin

VSS

6

I

Digital circuit power supply pin

AVSS

7

I

PWM power supply pin

4.1. PAD Assignment

ROSC

VDD

TG1

TG2

TG3

TG4

STOP0

VSS

STOP1

STOP2

STOP3

STOP4

STOP5

STOP6

STOP7

20

1

2

3

5

4

6

78

9

10

11

12

13

14

15

16

17

18

19

(0,0)

TEST

This IC substrate should be connected to VSS

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

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