P89V51RD2FA,512

Series:	89V
Packaging:	Tube
Part Status:	Obsolete
Core Processor:	8051
Core Size:	8-Bit
Speed:	40MHz
Connectivity:	SPI, UART/USART
Peripherals:	Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O:	32
Program Memory Size:	64KB (64K x 8)
Program Memory Type:	FLASH
EEPROM Size:	--
RAM Size:	1K x 8
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 5.5 V
Data Converters:	--
Oscillator Type:	Internal
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	44-LCC (J-Lead)
Supplier Device Package:	44-PLCC (16.59x16.59)
Base Part Number:	P89V51R

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Embedded - Microcontrollers

Introduction

The P89V51RD2FA, 512 is an 8-bit embedded microcontroller developed by NXP Semiconductors. It is based on a high-speed 8051 processor and has an internal 16k-byte ROM, 1k-byte RAM, 128-byte EEPROM, an 8-channel, 10-bit A/D and an on-chip high-speed UART controller. This device has a wide range of applications such as automotive, industrial, computing, home and other applications. The P89V51RD2FA also contains a variety of peripherals for interfacing, such as timers, serial ports, interrupt control, and a watchdog timer.

Features of the P89V51RD2FA, 512

Some of the features of the P89V51RD2FA, 512 are:

• High-speed 8051 Server processor.
• 16k-byte internal ROM, 1k-byte RAM.
• 128-byte EEPROM, 10-bit A/D, 8-channel UART controller.
• On-chip watchdog timer.
• Enhanced parallel port for low-cost production.
• Available in 40 MHz and 20 MHz versions.

Applications of the P89V51RD2FA, 512

The P89V51RD2FA, 512 is used in applications such as automotive, industrial, computing, and home automation.

• Automotive: The P89V51RD2FA, 512 could be used in automotive applications such as engine control and fuel system management. Additionally, multimedia devices such as rear-view cameras, in-vehicle entertainment systems, and navigation systems use this device.
• Industrial: The P89V51RD2FA, 512 is used in industrial applications such as motion control, conveyor systems, and robotics.
• Computing: The device is used in computing applications such as hard disk drive controllers, printer interfaces, and embedded system software.
• Home automation: This device is used in home automation applications such as home security systems, fire alarms, and home entertainment systems.

Working Principle of the P89V51RD2FA, 512

The P89V51RD2FA, 512 is based on the 8051 processor and has an internal 16 kilobyte ROM, 1 kilobyte RAM, 128-byte EEPROM, 8-channel 10-bit A/D and high-speed UART controller. The device is equipped with a range of peripherals to simplify application development including multiple timers, serial ports, interrupt control, and a watchdog timer.

The processor core contains an 8-bit data bus, 16-bit address bus, and three register banks. The 8-bit data bus is used for data transfers between the internal memory and its external peripherals. The 16-bit address bus is used for the location of instructions and data stored in the internal 16K RAM, the 128bytes of EEPROM memory, and other types of memory. The three register banks enable efficient processing of instructions and data manipulation.

The internal ROM contains instructions for microcomputer operations and other commonly used instructions. The ROM also contains a program called the interrupt vector table, which contains the address of the interrupt service routine (ISR) associated with each interrupt source. The RAM is used as the working memory of the microcomputer, where programs and variables are stored.

The 128-bits of EEPROM memory is used to store configuration data and other data that is not intended to be frequently changed. The 8-channel 10-bit A/D is used to convert analog signals into digital signals, which can be processed by the microcontroller and used in the application. The high-speed UART controller is used for serial communication between the microcontroller and external devices. The timer and interrupts are used to provide timing and control functions for the application.

Conclusion

The P89V51RD2FA, 512 is an 8-bit microcontroller from NXP Semiconductors designed for a wide variety of applications. It is based on a high-speed 8051 processor and has an internal 16k-byte ROM, 1k-byte RAM, 128-byte EEPROM, 8-channel 10-bit A/D, and a high-speed UART controller. The device has an enhanced parallel port for low-cost production and is available in 40 MHz and 20 MHz versions. It is used in a variety of applications such as automotive, industrial, computing, and home automation.

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