Ver 1.1

Jan 08, 2001

TEL: 886-3-5788833

http://www.gmt.com.tw

2

G571

Global Mixed-mode Technology Inc.

Typical PC-card Power-distribution application

Terminal Functions

TERMINAL

NAME

NO.

I/O

DESCRIPTION

3.3V

3,4

I

5V

5,6

I

12V

9

I

AVCC

11,12,13

O

Switched output that delivers 0V,3.3V,5V, or high impedance to card

AVPP

10

O

Switched output that delivers 0V,3.3V,5V,12V or high impedance to card

GND

7

Ground

OC

8

O

Logic-level overcurrent reporting output that goes low when an overcurrent condition exists

SHDN

16

I

Logic input that shuts down the G571 and sets all power outputs to high-impedance state

0

VCCD

1

I

Logic input that controls voltage of AVCC(see control-logic table)

1

VCCD

2

I

Logic input that controls voltage of AVCC(see control-logic table)

VPPD0

15

I

Logic input that controls voltage of AVPP(see control-logic table)

VPPD1

14

I

Logic input that controls voltage of AVPP(see control-logic table)

0.1µF

AVCC

AVCC

AVCC

AVPP

OC

To CPU

V

CC1

V

CC2

PC Card

Connector

V

PP1

V

PP2

VCC_EN0

PCMCIA

Controller

CS

5V

3.3V

1µF

0.1µF

1µF

0.1µF

12V

5V

5V

3.3V

3.3V

GND

0.1µF

12V

VCC_EN1

VPP_EN0

VPP_EN1

VCCD0

VCCD1

VPPD1

VPPD0

SHDN

Shutdown Signal From CPU

G571