W83601R/602R

Preliminary

Publication Release Date: Aug. 1999

- 4 -

Revision 0.32

6. PIN DESCRIPTION

Note: Please refer to Section 13.2 DC CHARACTERISTICS for details.

I/OD24t

- TTL level bi-directional pin open drain output with 12 mA sink capability

I/O24t

- TTL level bi-directional pin with 24 mA source-sink capability

INt

- TTL level input pin

INtd

- TTL level input pin with internal pull down resistor

INts

- TTL level Schmitt-trigger input pin

W83601R UNIVERSAL GENERAL PURPOSE I/O PORT FOR I2C BUS

PIN

SYMBOL

I/O

FUNCTION

1

SCL

IN

ts

SMBus Clock. (I

2

SDA

SMBus bi-directional Data.(I2C data)

3

GP20

A0

General Purpose I/O . This pin is a setting pin for SMBus(I

address bit 0 during power-on reset or RST# pin reset.

4

GP21

A1

IN

td

General Purpose I/O . This pin is a setting pin for SMBus(I

address bit 1 during power-on reset or RST# pin reset.

5

GP22

A2

I/O

24

IN

td

General Purpose I/O . This pin is a setting pin for SMBus(I

address bit 2 during power-on reset or RST# pin reset.

6

GP10

General Purpose I/O default input.

7

GP11

General Purpose I/O default input.

8

GP23

General Purpose I/O default input.

9

GP24

General Purpose I/O default input.

10

VSS

PWR

Ground Pin.

11

GP25

General Purpose I/O default input.

12

GP26

INT

I/OD

24

OD

24

General Purpose I/O default input.

Auto-generate Interrupt signal when detetecting a transition on

GPI inputs. This interrupt is either on pin12 or pin18.

13

GP12

I/OD

24

General Purpose I/O default input.

14

GP13

I/OD

24

General Purpose I/O default input.

15

GP14

I/OD

24

General Purpose I/O default input.

16

GP15

I/OD

24

General Purpose I/O default input.

17

GP16

General Purpose I/O default input.

18

GP17

INT

General Purpose I/O default input.

Auto-generate Interrupt signal when detetecting a transition on

GPI inputs. This interrupt is either on pin12 or pin18

19

RST#

Reset signal input.