mt89l80ap Mitel, mt89l80ap Datasheet
mt89l80ap
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mt89l80ap Summary of contents
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... Converter STi5 STi6 STi7 ** for 48-pin SSOP only CMOS ST-BUS DS5196 MT89L80AP MT89L80AN Description This VLSI CMOS device is designed for switching PCM-encoded voice or data, under microprocessor control modern digital exchange, PBX or Central Office. It provides simultaneous connections for up to 256 64 kbit/s channels. Each of the eight ...
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MT89L80 STi3 7 8 STi4 STi5 9 STi6 10 STi7 F0i 13 C4i PIN PLCC Pin Description Pin # Name 44 48 PLCC SSOP 2 2 DTA Data ...
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Advance Information Pin Description (continued) Pin # Name 44 48 PLCC SSOP 19-21 20-22 A3-5 Address 3-5 / Input Streams 11-13 (5V-tolerant Input). These are the inputs for the address lines on the microprocessor interface Data Strobe ...
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... In recent years, there has been a trend in telephony towards digital switching, particularly in association with software control. Simultaneously, there has been a trend in system architectures towards distributed processing or multi-processor systems. In accordance with these trends, MITEL has devised the ST-BUS (Serial Telecom Bus). architecture can be used both in software-controlled digital voice and ...
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Advance Information The higher order bits come from the Control Register, which may be written to or read from via the Control Interface. The lower order bits come from the address lines directly. The Control Register also allows the chip ...
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MT89L80 7 Bit NameE 2 Message When 1, the contents of the corresponding location in Connection Memory Low are Channel output on the location’s channel and stream. When 0, the contents of the corresponding location in Connection Memory Low act ...
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Advance Information If bit 6 of the Control Register is 0, then bits 2 and 0 of each Connection Memory High location function normally (see Fig. 5). If bit the associated ST- BUS output channel is in ...
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MT89L80 Speech Switch - 89L80 Controlling Micro- Processor Control & Signalling - 89L80 Figure 8 - Example Architecture of a Simple Digital Switching System 2-10 Line Interface Circuit with Codec (e.g. 8964) 8 STi0-7 8 STo0-7 • • STo0-7 • ...
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Advance Information Absolute Maximum Ratings* Parameter 1 Supply Voltage 2 Voltage on any I/O pin (except supply pins) 3 Current at Digital Outputs 4 Storage Temperature 5 Package Power Dissipation * Exceeding these values may cause permanent damage. Functional operation ...
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MT89L80 AC Electrical Characteristics Characteristics 1 Clock Period* 2 Clock Width High I 3 Clock Width Low Clock Transition Time Frame Pulse SetupTime S 6 Frame Pulse Hold Time 7 Frame Pulse Width † ...
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Advance Information AC Electrical Characteristics Characteristics 1 STo0/7 Delay - Active to High STo0/7 Delay - High Z to Active STo0/7 Delay - Active to Active U 4 Output Driver Enable Delay T ...
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MT89L80 AC Electrical Characteristics Characteristics 1 Chip Select Setup Time 2 Read/Write Setup Time 3 Address Setup Time 4 Acknowledgment Delay Control Register Read Control Register Write Connection Memory Read Connection Memory Write Data Memory Read 5 Fast Write Data ...
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... Mitel. This publication is issued to provide information only and (unless agreed by Mitel 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 Mitel 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 specifi ...