DS83C520-C01+

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When it comes to embedded applications, a microcontroller is an essential component that enables a system to communicate with the user and other peripheral components. The DS83C520-C01+ is a highly capable 8-bit CMOS Microcontroller ideal for embedded applications. This article explores its application field and working principle.

Overview

The DS83C520-C01+ is an 8-bit CMOS microcontroller from Intersil Corporation. It has a 40-pin DIP (Dual-In-line Package) package configuration with a single-chip architecture. It is based on the Intersil (TM) TX Series 32kbyte RISC processor core and supports up to 32KB of program memory and up to 4KB of data memory. The data and program memories can be expanded up to 256KB via external memory.

Key Features

The DS83C520-C01+ has several important features that make it suitable for many embedded applications. These include:

• 4 channel Hardware Enhanced Timer (HET) for pattern/pulse width/frequency modulation window edge modulation, tone and volume control, matrix key-pad scanning, LCD control and pulse counting applications
• Multifunction Parallel I/O Port for general-purpose I/O, A/D conversion, PWM, serial communications, etc.
• 99 8-bit instructions and 8 16-bit instructions for short instruction cycle time
• Power-saving mode for low-power operation
• On-chip oscillator circuit with +/- 1% frequency accuracy
• Comprehensive on-chip device support, including 32k-byte mask-programmable PROM, 8-channel A/D converter, 8-channel 8/12-bit PWM, comparator, watchdog timer, and I2C interface
• Embedded system development tools such as REX+, IDE, IAR Toolchain, and UARTplus
• In-system reprogrammable technology for quick and convenient system upgrades.

Application Field

The DS83C520-C01+ is a versatile microcontroller and can be used in a wide range of applications. These include:

• Telecommunications: The on-chip UART and I2C interface allow for communication with a range of serial devices such as modems, etc.
• Automation & Control: The HET allows the DS83C520-C01+ to be used for generating PWM signals for controlling motors, etc.
• Consumer Electronics: The DS83C520-C01+ is well-suited to LCD displays, matrix key-pads, and remote control applications.
• Medical Devices: The DS83C520-C01+ supports numerous medical device applications such as cardiac monitors, blood pressure monitors, and patient monitors.
• Industrial Electronics: The DS83C520-C01+ is suitable for applications such as sensor interfacing, motor control, and data acquisition.
• Automotive: The on-chip oscillator circuit enables the DS83C520-C01+ to be used in automotive applications such as fuel injection, speed and temperature control, etc.

Working Principle

The DS83C520-C01+ is based on a 32k-byte RISC processor core. This core has a two-stage instruction pipeline architecture, which allows for rapid instruction processing. The CPU has a wide range of instructions and operates at an internal clock frequency of up to 20 MHz. The internal oscillator frequency can be adjusted to meet specific requirements.

The DS83C520-C01+ has a number of on-chip peripherals, including a 4-channel hardware enhanced timer, multifunction parallel I/O port, watchdog timer, 8-channel 8/12-bit PWM, 8-channel A/D converter, analog comparator, and I2C interface. The peripherals are all configured via CPU register instructions.

The DS83C520-C01+ is designed for low power operation. It has a power-saving mode that reduces power consumption, and only specific peripherals are enabled during low power operation. This reduces the overall system cost and enables the DS83C520-C01+ to be used in battery-powered applications.

Conclusion

The DS83C520-C01+ is a highly capable 8-bit CMOS microcontroller ideal for embedded applications. It can be used in a wide range of applications, including telecommunications, automation & control, consumer electronics, medical devices, industrial electronics and automotive. The on-chip peripherals, low power requirements and comprehensive development tools make it suitable for many projects.

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