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CMS82C55AZ96
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CMS82C55AZ96

Product Overview

  • Category: Integrated Circuit
  • Use: General Purpose Programmable Peripheral Interface
  • Characteristics: Versatile, programmable, high-performance
  • Package: 40-pin DIP (Dual Inline Package)
  • Essence: The CMS82C55AZ96 is a programmable peripheral interface designed for use in various electronic systems. It provides flexible input/output capabilities and can be programmed to perform a wide range of functions.
  • Packaging/Quantity: Available in tubes or trays, with quantities varying based on customer requirements.

Specifications

  • Supply Voltage: 5V ±10%
  • Operating Temperature: -40°C to +85°C
  • Input/Output Ports: 24 I/O lines divided into three 8-bit ports (Port A, Port B, and Port C)
  • Modes of Operation: Three modes: Mode 0 (Basic Input/Output), Mode 1 (Strobed Input/Output), and Mode 2 (Bidirectional Bus)
  • Interrupt Capability: Supports interrupt-driven data transfer
  • Clock Frequency: Up to 8 MHz

Pin Configuration

The CMS82C55AZ96 has a total of 40 pins. Here is the detailed pin configuration:

  1. GND (Ground)
  2. Port C, Bit 0 (PC0)
  3. Port C, Bit 1 (PC1)
  4. Port C, Bit 2 (PC2)
  5. Port C, Bit 3 (PC3)
  6. Port C, Bit 4 (PC4)
  7. Port C, Bit 5 (PC5)
  8. Port C, Bit 6 (PC6)
  9. Port C, Bit 7 (PC7)
  10. VCC (+5V Power Supply)
  11. Port A, Bit 0 (PA0)
  12. Port A, Bit 1 (PA1)
  13. Port A, Bit 2 (PA2)
  14. Port A, Bit 3 (PA3)
  15. Port A, Bit 4 (PA4)
  16. Port A, Bit 5 (PA5)
  17. Port A, Bit 6 (PA6)
  18. Port A, Bit 7 (PA7)
  19. Port B, Bit 0 (PB0)
  20. Port B, Bit 1 (PB1)
  21. Port B, Bit 2 (PB2)
  22. Port B, Bit 3 (PB3)
  23. Port B, Bit 4 (PB4)
  24. Port B, Bit 5 (PB5)
  25. Port B, Bit 6 (PB6)
  26. Port B, Bit 7 (PB7)
  27. RD (Read Control)
  28. WR (Write Control)
  29. CS (Chip Select)
  30. A0 (Address Bit 0)
  31. A1 (Address Bit 1)
  32. A2 (Address Bit 2)
  33. RESET (Reset Input)
  34. INT (Interrupt Request)
  35. CLK (Clock Input)
  36. GND (Ground)
  37. NC (No Connection)
  38. NC (No Connection)
  39. NC (No Connection)
  40. VCC (+5V Power Supply)

Functional Features

  • Versatility: The CMS82C55AZ96 can be programmed to perform various input/output functions, making it suitable for a wide range of applications.
  • Programmability: Users can configure the chip's operation by writing appropriate control words to its control register.
  • Interrupt Capability: The device supports interrupt-driven data transfer, allowing efficient handling of time-critical tasks.
  • High Performance: With a clock frequency of up to 8 MHz, the CMS82C55AZ96 offers fast and reliable data transfer.

Advantages and Disadvantages

Advantages: - Versatile and programmable - Supports interrupt-driven data transfer - High-performance capabilities

Disadvantages: - Limited number of I/O ports (24 in total) - Requires external components for complete functionality

Working Principles

The CMS82C55AZ96 operates based on the principles of digital logic. It consists of three 8-bit ports (Port A, Port B, and Port C) that can be configured as inputs or outputs. The chip's behavior is determined by control words written to its control register. These control words specify the mode of operation, direction of data transfer, and other parameters.

When programmed in Mode 0, the CMS82C55AZ96 functions as a basic input/output device. In Mode 1, it operates as a strobed input/output device, allowing synchronized data transfer. Mode 2 enables bidirectional bus capability, making it suitable for applications requiring data transfer in both directions.

Detailed Application Field Plans

技術ソリューションにおける CMS82C55AZ96 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of CMS82C55AZ96 in technical solutions:

  1. Q: What is CMS82C55AZ96? A: CMS82C55AZ96 is a programmable peripheral interface chip commonly used in technical solutions for interfacing microprocessors with various peripheral devices.

  2. Q: What are the key features of CMS82C55AZ96? A: The key features of CMS82C55AZ96 include three 8-bit bidirectional I/O ports, two 16-bit timer/counters, and an interrupt control unit.

  3. Q: How can CMS82C55AZ96 be used in technical solutions? A: CMS82C55AZ96 can be used to interface microprocessors with devices such as keyboards, displays, printers, sensors, and other peripheral devices.

  4. Q: How do I program CMS82C55AZ96? A: CMS82C55AZ96 can be programmed using assembly language or high-level programming languages by writing appropriate code to configure its registers and perform desired operations.

  5. Q: Can CMS82C55AZ96 handle interrupts? A: Yes, CMS82C55AZ96 has an interrupt control unit that allows it to handle interrupts from external devices, enabling efficient event-driven programming.

  6. Q: What is the maximum clock frequency supported by CMS82C55AZ96? A: CMS82C55AZ96 supports a maximum clock frequency of 8 MHz, which determines the speed at which it can process data and perform operations.

  7. Q: Can CMS82C55AZ96 operate in different modes? A: Yes, CMS82C55AZ96 can operate in three different modes: mode 0 (basic input/output), mode 1 (strobe input/output), and mode 2 (bidirectional input/output).

  8. Q: How many I/O ports are available in CMS82C55AZ96? A: CMS82C55AZ96 has three 8-bit bidirectional I/O ports, labeled Port A, Port B, and Port C, which can be used for data transfer with external devices.

  9. Q: Can CMS82C55AZ96 generate timing signals? A: Yes, CMS82C55AZ96 has two 16-bit timer/counters that can be used to generate timing signals or perform tasks such as measuring time intervals.

  10. Q: Is CMS82C55AZ96 still widely used in modern technical solutions? A: While CMS82C55AZ96 is an older chip, it may still be used in certain legacy systems or specialized applications where compatibility with existing hardware or software is required.