VITESSE

SEMICONDUCTOR CORPORATION

Data Sheet

VSC8021/VSC8022

2.5Gb/s SONET-Compatible

8-Bit MUX/DEMUX Chipset

Page 14

G52028-0, Rev 4.1

05/25/01

© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

Table 8: VSC8022 Pin Identifications

Pin #

Signal Name

I/O

Level Type

Description

1

NC

No Connection

2

NC

No Connection

3

D2N

O

ECL

Parallel Data Bit 2, Complement

4VCC

Pwr

0V

Ground

5

D2

O

ECL

Parallel Data Bit 2, True

6

D1N

O

ECL

Parallel Data Bit 1, Complement

7VTT

Pwr

-2.0

Power Supply for Internal Reference Generation and Low Power

Logic

8

D1

O

ECL

Parallel Data Bit 1, True

9FP

O

ECL

Frame Pulse. This pulse will appear one byte period after the first

A2 byte appears on the parallel data output pins.

10

VCC

Pwr

0V

Ground

11

FDIS

I

ECL

Frame Recovery Disable

12

OOFN

I

ECL

Frame Recovery Enable

13

NC

No Connection

14

NC

No Connection

15

DI

I

HS

High-Speed Serial Data Bit 1, True

16

DIN

I

HS

High-Speed Serial Data Bit 1, Complement

17

CLKI

I

HS

High-Speed Clock, True

18

VCC

Pwr

0V

Ground

19

CLKIN

I

HS

High-Speed Clock, Complement

20

NC

No Connection

21

NC

No Connection

22

NC

No Connection

23

Pwr

-5.2V

Power Supply for High-Speed Logic

24

NC

No Connection

25

NC

No Connection

26

NC

No Connection

27

NC

No Connection

28

NC

No Connection

29

NC

No Connection

30

VCC

Pwr

0V

Ground

31

D8N

O

ECL

Parallel Data Bit 8, Complement