ML6652

2

January 2002

Preliminary Datasheet

TABLE OF CONTENTS

Micro Linear makes no representations or warranties with respect to the accuracy, utility, or completeness of the contents of

this publication and reserves the right to make changes to specifications and product descriptions at any time without notice.

No license, express or implied, by estoppel or otherwise, to any patents or other intellectual property rights is granted by this

document. The circuits contained in this document are offered as possible applications only. Particular uses or applications

may invalidate some of the specifications and/or product descriptions contained herein. The customer is urged to perform its

own engineering review before deciding on a particular application. Micro Linear assumes no liability whatsoever, and

disclaims any express or implied warranty, relating to sale and/or use of Micro Linear products including liability or warranties

relating to merchantability, fitness for a particular purpose, or infringement of any intellectual property right. Micro Linear

products are not designed for use in medical, life saving, or life sustaining applications.

WARRANTY

© 2002 Micro Linear Corporation. All rights reserved. All other trademarks are the property of their respective owners.

Products described herein may be covered by one or more of the following U.S. patents: 4,897,611; 4,964,026; 5,027,116;

5,281,862; 5,283,483; 5,418,502; 5,508,570; 5,510,727; 5,523,940; 5,546,017; 5,559,470; 5,565,761; 5,592,128; 5,594,376;

5,652,479; 5,661,427; 5,663,874; 5,672,959; 5,689,167; 5,714,897; 5,717,798; 5,742,151; 5,747,977; 5,754,012; 5,757,174;

5,767,653; 5,777,514; 5,793,168; 5,798,635; 5,804,950; 5,808,455; 5,811,999; 5,818,207; 5,818,669; 5,825,165; 5,825,223;

5,838,723; 5.844,378; 5,844,941. Japan: 2,598,946; 2,619,299; 2,704,176; 2,821,714. Other patents are pending.

General Description ......................................................................................................................................................... 1

Features ........................................................................................................................................................................... 1

Applications ..................................................................................................................................................................... 1

Warranty Information ....................................................................................................................................................... 2

Block Diagram ................................................................................................................................................................. 3

Pin Configuration ............................................................................................................................................................. 4

Pin Descriptions ............................................................................................................................................................... 4

General Description ....................................................................................................................................................... 13

Functional Description ................................................................................................................................................... 14

Device Configuration ..................................................................................................................................................... 14

Default Power Configuration .......................................................................................................................................... 14

Serial Management Interface ......................................................................................................................................... 14

Speed Selection ............................................................................................................................................................. 15

Operating Modes ........................................................................................................................................................... 16

Transparent Mode ........................................................................................................................................................... 18

Fiber Optic Input/Output Interface ................................................................................................................................. 18

Power Down Mode ......................................................................................................................................................... 19

Loopback Mode ............................................................................................................................................................. 19

Scrambler/Descrambler .................................................................................................................................................. 19

Output Off Mode ........................................................................................................................................................... 19

Backup Link Mode ......................................................................................................................................................... 19

Control Registers ............................................................................................................................................................ 20

Status Registers .............................................................................................................................................................. 23

Electrical Characteristics ............................................................................................................................................... 24

Physical Dimensions ...................................................................................................................................................... 28

Order Information .......................................................................................................................................................... 28