TMC2005-JT ARCNET 5 Port HUB Controller FEATURES ARCNET HUB Circuit for ARCNET Protocol Can Connect with HYC9088 in Normal Mode (Data Rate From 156.25Kbps to 10Mbps) Can Connect with RS485 Transceiver, Able to Connect Various Transceivers Directly HYC5000/4000/2000, Opt Module and TTL Device Includes TX/RX Timing Circuit for 5 Port Interface in Backplane Mode Hub and Direction Control Circuit, Jitter Correct Supports both Normal and Backplane Mode at Circuit and Noise Cancel Circuit the Same Time for Media Conversion Easy to Design 8 or 12 Port Hub + 5V Single Power GENERAL DESCRIPTION When configuring a network, the maximum number of nodes and the maximum cable length are limited by the electric capacity of the transceiver. In this case, the network is expanded by an equipment called a HUB or repeater. It maybe necessary to have a converter between coax, T/P and the fiber cable. It is easy to design a HUB or a repeater because the TMC2005 has various features for expanding such network. It can connect with HYC9088, RS485 transceiver, HYC5000/4000/2000 and TTL interface for optical module. It can connect with three different transceivers at the same time and convert the media of each. (The data rate cannot be converted. It is necessary to operate all nodes in the same network at the same data rate). The Hubs can be expanded by connecting two or more TMC2005 chips. By setting one of 5 ports to open-drain output, the Hub can be expanded to either 12 or 16 ports. ORDERING INFORMATION Order Number(s): TMC2005-JT for 64 pin, TQFP Lead-Free RoHS Compliant Package SMSC TMC2005-JT Revision 1.1 (07-24-07) DATASHEET ARCNET 5 Port HUB Controller Datasheet 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