AT89LP51RD2-20JU

Program Memory Type:	FLASH
Base Part Number:	AT89LP51RD2
Supplier Device Package:	44-PLCC (16.59x16.59)
Package / Case:	44-LCC (J-Lead)
Operating Temperature:	-40°C ~ 85°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 7x10b
Voltage - Supply (Vcc/Vdd):	2.4 V ~ 5.5 V
RAM Size:	2.25K x 8
EEPROM Size:	--
Series:	89LP
Program Memory Size:	64KB (64K x 8)
Number of I/O:	40
Peripherals:	Brown-out Detect/Reset, POR, PWM, WDT
Connectivity:	EBI/EMI, I²C, SPI, UART/USART
Speed:	20MHz
Core Size:	8-Bit
Core Processor:	8051
Part Status:	Active
Packaging:	Tube

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<h1>Embedded - Microcontrollers</h1><p>The AT89LP51RD2-20JU is a 8-bit microcontroller from Atmel. It has 4kB of Flash program memory, 256 bytes of RAM and 64 bytes of EEPROM. The AT89LP51RD2-20JU is an improved version of the AT89LP51RD2 that includes an additional timer and a more efficient power management system.</p><p>The AT89LP51RD2-20JU is used in a wide range of embedded applications, from signal processing to motor control and robotics. The AT89LP51RD2-20JU is especially well suited for applications that require low power consumption and where space is a factor.</p><h2>Application Field</h2><p>The AT89LP51RD2-20JU is an advanced and cost-effective 8-bit microcontroller. It is useful in a variety of applications such as:</p><ul><li>Industrial control</li><li>Power supply management</li><li>Portable device implementation</li><li>Home and consumer applications</li><li>Data acquisition systems</li><li>Lighting systems</li></ul><p>The AT89LP51RD2-20JU is a highly versatile device, making it a cost-effective solution for a wide range of applications. It has a wide range of features, including:</p><ul><li>Four 8-bit ports (configurable as inputs or outputs)</li><li>Six 16-bit timers</li><li>Six pulse-width modulation (PWM) outputs</li><li>Two 12-bit analogue-to-digital converters (ADC) with up to 10 inputs</li><li>One I2C interface</li><li>One SPI interface</li></ul><p>The AT89LP51RD2-20JU also has low-power features to help reduce power consumption. The core can be put into a low-power sleep or idle mode when inactive, and the PWM outputs can be programmed for low-power operation. Furthermore, the device can be programmed to monitor power levels and automatically switch to efficient power management modes.</p><h2>Working Principle</h2><p>The AT89LP51RD2-20JU is programmed using a variety of software tools, such as Keil μVision IDE and Atmel Studio. The device is programmed using assembly language, the Atmel assembler, or the Atmel C compiler.</p><p>The AT89LP51RD2-20JU is based on the Harvard architecture, which divides memory into separate areas for program code and data. This architecture simplifies programming as well as increasing program speed by allowing simultaneous access to both code and data.</p><p>The AT89LP51RD2-20JU has an on-chip clock oscillator circuit. It can operate up to 16 MHz and is accurate to within 0.5%. The AT89LP51RD2-20JU supports both interrupt and polling based I/O operations. It can respond to external interrupts, such as for motor control or pulse width modulation, as well as to its own internal timers.</p><p>The AT89LP51RD2-20JU uses an advanced architecture with an on-chip memory management unit, allowing it to support dynamic code and data structures. This simplifies application development and reduces the cost of developing programs.</p><p>The AT89LP51RD2-20JU is a powerful and cost-effective embedded microcontroller. It is ideal for a variety of applications, including industrial control, power supply management, robotic control, home and consumer applications, and data acquisition systems. With its advanced architecture, low power consumption, and wide range of features, the AT89LP51RD2-20JU is a perfect solution for many embedded applications.</p>

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