PIC18LF4220-I/PT

Program Memory Type:	FLASH
Base Part Number:	PIC18LF4220
Supplier Device Package:	44-TQFP (10x10)
Package / Case:	44-TQFP
Operating Temperature:	-40°C ~ 85°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 13x10b
Voltage - Supply (Vcc/Vdd):	2 V ~ 5.5 V
RAM Size:	512 x 8
EEPROM Size:	256 x 8
Series:	PIC® 18F
Program Memory Size:	4KB (2K x 16)
Number of I/O:	36
Peripherals:	Brown-out Detect/Reset, LVD, POR, PWM, WDT
Connectivity:	I²C, SPI, UART/USART
Speed:	40MHz
Core Size:	8-Bit
Core Processor:	PIC
Part Status:	Active
Packaging:	Tray

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Introduction

The PIC18LF4220-I/PT is a low-power 8-bit CMOS microcontroller designed for embedded applications. This microcontroller has multiple on-chip peripherals, including an SPI interface, UART, I2C, WDT, and LCD driver, as well as a 16-bit watchdog timer. It is optimized for 9V battery operated systems and fits an 8-pin DIP, making it ideal for all types of embedded applications.

Application Field

The PIC18LF4220-I/PT is often used in embedded systems that require low power consumption and a long battery life. Examples include alarm systems, smoke detectors, home automation, security systems, wearable electronics, and medical devices. This microcontroller is also suitable for applications in consumer products, such as MP3 players, digital cameras, remote controls, and watches.The PIC18LF4220-I/PT is also widely used in industrial controllers, as it is capable of handling real-time data processing and can provide accurate timing for multiple functions. Its SPI, UART, and I2C interfaces provide simple and reliable communication with external peripherals.

Working Principle

The PIC18LF4220-I/PT is an 8-bit microcontroller with a 16-bit wide data bus, allowing for fast data processing and access to peripherals. It includes an 8-channel 10-bit A/D converter for analog-to-digital conversion, and 25 I/Os, 17 of which have multiplexing capability.The integrated peripherals are controlled by an on-chip register, which is configured using software commands. All of the peripherals are clocked using a dedicated oscillator, and the microcontroller can be powered using a 3V to 5V DC power supply.The PIC18LF4220-I/PT has an integrated watchdog timer which can be used to guard against software errors. The timer is programmable and the default time-out interval is 10ms.

Conclusion

The PIC18LF4220-I/PT is a low-power 8-bit microcontroller that is ideal for a wide range of embedded applications. It features multiple integrated peripherals, including SPI, UART, and I2C, as well as a 16-bit watchdog timer for protection against software errors. Its small size and low power consumption make it a great choice for battery operated systems.

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