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MT8931B Dataheets PDF



Part Number MT8931B
Manufacturers Mitel Networks
Logo Mitel Networks
Description Subscriber Network Interface Circuit
Datasheet MT8931B DatasheetMT8931B Datasheet (PDF)

® CMOS ST-BUS™ FAMILY MT8931B Subscriber Network Interface Circuit Preliminary Information Features • • • • • • • CCITT I.430 and ANSI T1.605 S/T interface Full-duplex 2B+D, 192 kbit/s transmission Link activation/deactivation D-channel access contention resolution Point-to-point, point-to-multipoint and star configurations Master (NT)/Slave (TE) modes of operation Exceeds loop length requirements ISSUE 2 August 1993 Ordering Information MT8931BC 28 Pin Ceramic DIP MT8931BE 28 Pin Plastic DI.

  MT8931B   MT8931B



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® CMOS ST-BUS™ FAMILY MT8931B Subscriber Network Interface Circuit Preliminary Information Features • • • • • • • CCITT I.430 and ANSI T1.605 S/T interface Full-duplex 2B+D, 192 kbit/s transmission Link activation/deactivation D-channel access contention resolution Point-to-point, point-to-multipoint and star configurations Master (NT)/Slave (TE) modes of operation Exceeds loop length requirements ISSUE 2 August 1993 Ordering Information MT8931BC 28 Pin Ceramic DIP MT8931BE 28 Pin Plastic DIP MT8931BP 44 Pin PLCC -40°C to +85°C Description The MT8931B Subscriber Network Interface Circuit (SNIC) implements the CCITT I.430 and ANSI T1.605 Recommendations for the ISDN S and T reference points. Providing point-to-point and pointto-multipoint digital transmission, the SNIC may be used at either end of the subscriber line (NT or TE). www.DataSheet4U.com d e et e d • Complete loopback testing capabilities h n n s e g • On chip HDLC D-channel protocoller i ta m s a • 8 bit Motorola/Intel microprocessor interface m De 1C 1B d • Microprocessor-controlled operation o c ew 893 93 e • Mitel ST-BUS interface 8 D-channel protocoller is included and HDLC R N T An T • Low power CMOS technology t M controlled r e M ullport. through a Motorola/Intel microprocessor o o • Single 5 volt power supply N f e rf S y fo The MT8931B is fabricated in Mitel’s CMOS process. Applications • • • • • ISDN NT1 ISDN S or T interface ISDN Terminal Adaptor (TA) Digital sets (TE1) - 4 wire ISDN interface Digital PABXs, Digital Line Cards (NT2) n Co s f t l u a cto r DSTi DSTo ST-BUS Interface D-channel Priority Mechanism LTx S-Bus Link Interface VBias LRx F0od C4b F0b STAR/Rsto XTAL1/NT XTAL2/NC Microprocessor Interface VSS Timing and Control PLL HDLC Transceiver Link Activation Controller VDD Rsti HALF AD0-7 R/W/WR DS/RD AS/ALE CS IRQ/NDA Figure 1 - Functional Block Diagram 10-71 MT8931B Notes: Preliminary Information www.DataSheet4U.com 10-72 http://www.zarlink.com World Headquarters - Canada Tel: +1 (613) 592 0200 Fax: +1 (613) 592 1010 North America - West Coast Tel: (858) 675-3400 Fax: (858) 675-3450 North America - East Coast Tel: (978) 322-4800 Fax: (978) 322-4888 www.DataSheet4U.com Asia/Pacific Tel: +65 333 6193 Fax: +65 333 6192 Europe, Middle East, and Africa (EMEA) Tel: +44 (0) 1793 518528 Fax: +44 (0) 1793 518581 Information relating to products and services furnished herein by Zarlink Semiconductor Inc. trading as Zarlink Semiconductor or its subsidiaries (collectively “Zarlink”) is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink Semiconductor’s conditions of sale which are available on request. Purchase of Zarlink’s I2C components conveys a licence under the Philips I2C Patent rights to use these components in an I2C System, provided that the system conforms to the I2C Standard Specification as defined by Philips Zarlink and the Zarlink Semiconductor logo are trademarks o.


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