DS89C420-QNL

Program Memory Type:	FLASH
Base Part Number:	DS89C420
Supplier Device Package:	44-PLCC (16.59x16.59)
Package / Case:	44-LCC (J-Lead)
Operating Temperature:	-40°C ~ 85°C (TA)
Oscillator Type:	External
Data Converters:	--
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 5.5 V
RAM Size:	1K x 8
EEPROM Size:	--
Series:	89C
Program Memory Size:	16KB (16K x 8)
Number of I/O:	32
Peripherals:	Power-Fail Reset, WDT
Connectivity:	EBI/EMI, SIO, UART/USART
Speed:	33MHz
Core Size:	8-Bit
Core Processor:	8051
Part Status:	Discontinued at Digi-Key
Packaging:	Tube

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The DS89C420-QNL is an 8-bit microcontroller from the manufacturer Dallas Semiconductor and an integrated circuit that integrates a powerful processor core into a single chip. It is a versatile product for embedded applications, as it can perform a variety of tasks such as data acquisition, computing and communications. In this article, we will discuss the application field and working principle of the DS89C420-QNL.

Application Field

The DS89C420-QNL is ideal for applications that require low power consumption, high performance, and high-density memory needs. It is suitable for use in industrial control systems, automotive systems, entertainment and gaming consoles, scientific instruments, and consumer applications. It is also suitable for a variety of applications including motor control, robotics, digital signal processing, and audio streaming.The DS89C420-QNL has a wide range of peripherals, including analog-to-digital converters (ADCs), digital-to-analog converters (DACs), timers, serial interfaces, and external memory interfaces. The integrated peripherals provide flexibility and convenience when developing embedded applications.

Working Principle

The DS89C420-QNL features a RISC-core processor. The processor is based on the Harvard architecture and consists of an 8-bit instruction set, allowing for instructions to execute quickly. It also features five 32-bit wide memory interfaces for external memory, providing up to 128KB of external RAM and 256KB of external flash.The DS89C420-QNL also has an 8-bit Pulse Width Modulator (PWM) for device control, a 10-bit Analog-to-Digital Converter (ADC) for analog data conversion, and two integrated Communication channels for data communication and network protocols such as CAN, Ethernet, and USB.The DS89C420-QNL is powered by a 3.3V power supply. The power consumption is relatively low, making it suitable for applications where power consumption is a priority.

Conclusion

In conclusion, the DS89C420-QNL is a versatile microcontroller that can be used in a variety of applications. With its low power consumption, high performance, and wide range of integrated peripherals, it is an excellent choice for embedded applications. It is also a cost-effective solution for embedded systems where memory and performance demands are high.

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