MT8980DC Zarlink Semiconductor, MT8980DC Datasheet
MT8980DC
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MT8980DC Summary of contents
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Features • Zarlink ST-BUS compatible • 8-line x 32-channel inputs • 8-line x 32-channel outputs • 256 ports non-blocking switch • Single power supply (+5 V) • Low power consumption Typ. • Microprocessor-control interface • Three-state serial outputs ...
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MT8980D STi3 7 8 STi4 STi5 9 STi6 10 STi7 11 VDD 12 F0i 13 C4i PIN PLCC Pin Description Pin # Name 40 44 DIP PLCC 1 2 DTA Data Acknowledgement ...
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Pin Description (continued) Pin # Name 40 44 DIP PLCC 22- 25- D7-D5 Data (Three-state I/O Pins). These are the bidirectional data pins on the 24 27 microprocessor interface. 25- 29- D4-D0 Data (Three-state ...
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MT8980D Functional Description 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 ...
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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 to broadcast ...
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MT8980D 7 BIT NAME 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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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 Message Mode; ...
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MT8980D Speech Switch - 8980 Controlling Micro- Processor Control & Signalling - 8980 Figure 8 - Example Architecture of a Simple Digital Switching System Application Circuit with 6802 Processor Fig. 10 shows an example of a complete circuit which may ...
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D7-D0 A15-A0 MEK6802D3 System R/W MR VMA E DTA 1 40 STi0 2 39 STi1 3 38 909 Ω, STi2 4 37 STi3 5 36 1/4W STi4 6 35 STi5 7 34 STi6 STi7 9 32 ...
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MT8980D Absolute Maximum Ratings* Parameter Voltage on Digital Inputs 3 Voltage on Digital Outputs 4 Current at Digital Outputs 5 Storage Temperature 6 Package Power Dissipation * Exceeding these values may cause permanent ...
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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 † Timing ...
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MT8980D AC Electrical Characteristics Characteristics 1 STo0/7 Delay - Active to High Z 2 STo0/7 Delay - High Z to Active STo0/7 Delay - Active to Active STo0/7 Hold Time U 5 Output Driver ...
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AC Electrical Characteristics Characteristics 1 Chip Select Setup Time 2 Read/Write Setup Time 3 Address Setup Time 4 Acknowledgement Delay Fast Slow 5 Fast Write Data Setup Time 6 Slow Write Data Delay 7 Read Data Setup Time 8 Data ...
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MT8980D Notes: 2-16 ...
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Package Outlines Notes Not to scale 2) Dimensions in inches 3) (Dimensions in millimeters) Plastic Dual-In-Line Packages (PDIP Suffix 8-Pin DIM Plastic Min Max A 0.210 (5.33) A 0.115 (2.92) ...
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Notes Not to scale 2) Dimensions in inches 3) (Dimensions in millimeters) Plastic Dual-In-Line Packages (PDIP Suffix 22-Pin DIM Plastic Min Max A 0.210 (5.33) A 0.125 (3.18) 0.195 ...
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Package Outlines Dim D General- (lead coplanarity) A Notes Not ...
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... For more information about all Zarlink products 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 ...