TMC2074 TM Dual Mode CircLink Controller Data Brief PRODUCT FEATURES Low Power CMOS, 3.3 Volt Power Supply with 5 Volt Supports 8 Bit Programmable General Purpose I/O at Tolerant I/O peripheral Mode Supports 8/16-Bit Data Bus Supports 16 Bit Input and 16 Bit Output at Standalone Both 86xx and 68hxx Platforms Mode 1K On-chip Dual Port Buffer Memory Dual Communication Modes (with Peripheral Mode) Sequential I/O Mapped Access Free Format Mode Remote Buffer Mode Enhanced Token Passing Protocol from ARCNET Maximum 31 Nodes per Network 3 Port Hub Integrated Token Retry Mechanism 1 Internal and 2 External Maximum 256 Bytes per Packet Flexible Topologies Consecutive Node ID Assignment Bus, Star and Tree Memory Mirror Low Cost Media can be Used Shared Memory within Network RS485 Differential Driver Network Standard Time Fiber Optics and Twisted Pair Cable Supported Network Time Synchronization 128-Pin, VTQFP Lead-Free RoHS Compliant Automatic Time Stamping Package Coded Mark Inversion Temperature Range from 0 to 70 Degrees C Intelligent 1-Bit Error Correction Magnetic Saturation Prevention Dual Operation Modes Peripheral (Host) Mode Operates with MCU Standalone (I/O) Mode Operates without MCU SMSC TMC2074 PRODUCT PREVIEW Revision 0.2 (10-23-08) TM Dual Mode CircLink Controller ORDER NUMBER: TMC2074-NU FOR 128 PIN, VTQFP LEAD-FREE ROHS COMPLIANT PACKAGE 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright 2007 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC s standard Terms of Sale Agreement dated before the date of your order (theTerms of Sale Agreemen). The product may contain design defects or errors known as anomalies which may cause the product s functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSCs website at