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Part Number: MS82C55A
Description: The 82C55A is a very powerful tool for interfacing peripheral equipment to the microcomputer system. It represents the ...
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MS82C55A
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DataSheet
General Description
MS82C55A General Description
The 82C55A is a very powerful tool for interfacing peripheral equipment to the microcomputer system. It represents the optimum use of available pins and is flexible enough to interface almost any I/O device without the need for additional external logic.
Each peripheral device in a microcomputer system usually has a "service routine" associated with it. The routine manages the software interface between the device and the CPU. The functional definition of the 82C55A is programmed by the I/O service routine and becomes an extension of the system software. By examining the I/O devices interface characteristics for both data transfer and timing, and matching this information to the examples and tables in the detailed operational description, a control word can easily be developed to initialize the 82C55A to exactly "fit" the application. Figures 18 through 24 present a few examples of typical applications of the 82C55A.
MS82C55A Maximum Ratings
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +8.0V
Input, Output or I/O Voltage . . . . . . . . . . . . GND-0.5V to VCC+0.5V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1
Input, Output or I/O Voltage . . . . . . . . . . . . GND-0.5V to VCC+0.5V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1
MS82C55A Features
• Pb-Free Plus Anneal Available (RoHS Compliant) (See Ordering Info)
• Pin Compatible with OKI MSM82C55A - No Bus Hold Devices on any Port Pins
• 24 Programmable I/O Pins
• Fully TTL Compatible
• High Speed, No "Wait State" Operation with 8MHz 80C86 and 80C88
• Direct Bit Set/Reset Capability
• Enhanced Control Word Read Capability
• L7 Process
• 2.5mA Drive Capability on All I/O Ports
• Low Standby Power (ICCSB) . . . . . . . . . . . . . . . . . . .10A
• Pin Compatible with OKI MSM82C55A - No Bus Hold Devices on any Port Pins
• 24 Programmable I/O Pins
• Fully TTL Compatible
• High Speed, No "Wait State" Operation with 8MHz 80C86 and 80C88
• Direct Bit Set/Reset Capability
• Enhanced Control Word Read Capability
• L7 Process
• 2.5mA Drive Capability on All I/O Ports
• Low Standby Power (ICCSB) . . . . . . . . . . . . . . . . . . .10A
MS82C55A Connection Diagram
MS82C55A
PDF/DataSheet Download
- Datasheet: MS82C55A
- File Size: 514166 KB
- Manufacturer: INTERSIL [Intersil Corporation]
- Click here to Download
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