on October 11th 5,025

PIC18F4620 Microcontroller: Features, Pinouts, and Datasheet Guide

This article begins by exploring the PIC18F4620 microcontroller, discuss its balance between computational power and cost-efficiency. We'll examine the microcontroller’s capabilities in detail, such as its durability and energy efficiency. This method not only makes the information more relatable but also more useful for you, encouraging a deeper appreciation of the technology and motivating further exploration into the PIC18F4620's role in advancing microcontroller technology.

Catalog

Overview of PIC18F4620

The PIC18F4620 microcontroller showcases a blend of computational efficiency and cost-effectiveness, leveraging its Enhanced Flash program memory for superior durability and an extended lifespan. This characteristic finds utility in applications requiring frequent memory rewrites, ensuring long-term reliability. The PIC18 series including the PIC18F2525, PIC18F2620, PIC18F4525, and PIC18F4620 models is crafted to fulfill the needs of high-performance and power-sensitive implementations.

Pinout of PIC18F4620

 

Pin Configuration

Power and Ground Pins

The power requirements for the PIC18F4620 range from 2V to 5.5V, catered through the VDD and VSS pins. VDD connects to the positive supply voltage. VSS is designated for ground.

Placing appropriate decoupling capacitors, such as ceramic or tantalum types, near these pins helps in noise reduction and maintaining stable operation, stable power delivery underpins consistent microcontroller performance.

Oscillator Pins

The OSC1 and OSC2 pins are utilized for connecting external crystals or resonators, generating the clock signal needed for operation. The choice of clock source is use as it influences both power consumption and performance. Selecting suitable oscillator components ensures that the microcontroller functions at the desired frequency with minimal jitter.

Input/Output Ports

The microcontroller comprises several I/O ports: PORTA, PORTB, PORTC, PORTD, and PORTE. Each port, consisting of multiple pins, can be configured as input or output depending on application requirements.

Effectively using these ports can streamline design processes, initialization of TRIS registers determines the input or output status of pins for controlling external circuits like sensors, switches, and LEDs.

Special Function Pins

Specific pins are allocated for specialized functions:

Analog-to-Digital Conversion (ADC) Channels

Pulse-Width Modulation (PWM) Outputs

Communication Interfaces: UART, SPI, and I2C

Leveraging these built-in peripherals, such as timers and communication modules, enriches circuit designs and boosts functionality. For example, utilizing the built-in UART communication can simplify coding efforts and enhance data transmission reliability in serial communication projects.

PIC18F4620 Symbol, Footprint, and CAD Model

PIC18F4620 Symbol

The symbol of the PIC18F4620 serves as a graphical representation used in schematics to indicate the component and its electrical connections. The symbol includes all the pins and their designated functions, enabling seamless schematic design.

PIC18F4620 Footprint

The footprint for the PIC18F4620 specifies the physical layout and size of the component on the PCB. This includes the arrangement and dimensions of pads, which are good for secure and reliable soldering.

PIC18F4620 CAD Model

A CAD (Computer-Aided Design) model offers a 3D representation of the PIC18F4620 microcontroller, detailing physical aspects such as height, width, and pin layout. The CAD model is instrumental for precise PCB design, enabling accurate placement and spatial planning.

Features of PIC18F4620

PIC18F4620 provides adaptable operating modes to distinct power-saving requirements, adding a touch to its usability:

Operating Modes

Run: Activates both the CPU and peripherals, ensuring immediate responsiveness for active tasks.

Idle: Disables the CPU while maintaining peripheral activity, perfect for scenarios where background processes require attention.

Sleep: Powers down the CPU and peripherals, ideal for conserving energy during periods of inactivity.

Power Efficiency

Ultra-Low 50nA Input Leakage: This minimizes unintended current, a factor in precision applications where leakage could compromise performance and, by extension, reliability.

Run Mode: Consumes a modest 11µA, reflecting its suitability for power-sensitive operations needing frequent activation without excessive energy draw.

Idle Mode: Draws merely 2.5µA, beneficial for tasks that require peripheral monitoring without demanding full processing power.

Sleep Mode: Uses an extremely low 100nA, ideal for applications where battery life preservation during long periods of inactivity is great.

Timer1 Oscillator: Operates at 900nA with a 32 kHz frequency, maintaining timekeeping functions with minimal power, ensuring the accuracy of time-dependent operations even in low-power states.

Watchdog Timer: Consumes 1.4µA, contributing to system stability by automatically resetting the microcontroller if a software fault or unresponsive state is detected, a safeguard reassuring for relying on uninterrupted service.

Applications in Embedded Systems

Balancing Performance with Power Consumption: Selecting appropriate modes based on operational needs can extend battery life in portable devices.

Accuracy and Reliability: The ultra-low input leakage current and efficient oscillators ensure the system remains precise and dependable, even when operating in low-power states.

Advantages of the PIC18F4620

Oscillator Flexibility

Crystal Oscillator: Operating up to 40 MHz, enhanced by a 4x Phase Lock Loop (PLL), offers remarkable performance and speed, making it suitable for applications where precision is needed.

RC Modes: Handles up to 4 MHz with an external resistor-capacitor (RC) setup, extendable to 40 MHz with an external clock source, providing adaptability in diverse scenarios.

Internal Oscillator Block: Ranges from 31 kHz to 8 MHz, ensuring a swift wake-up time from Sleep mode (1 µs), which reduces latency and aids in effective power management.

Fail-Safe Clock Monitor: Adds reliability by ensuring safe shutdown in case of a peripheral clock failure, bolstering system robustness.

Notable Peripherals

High-Current Sink/Source: Each I/O pin manages up to 25 mA, accommodating higher power requirements without external drivers.

Multiple Interrupts and PWM Outputs: This feature supports synchronous control over various modules for motor control and communication systems, enhancing operational efficiency.

Master Synchronous Serial Port (MSSP): Supports SPI/I2C protocols imperative for efficient multi-IC communication, enabling seamless integration in sophisticated designs.

Enhanced USART and ADC Module: The USART supports both asynchronous and synchronous modes, while the 10-bit ADC offers up to 13 channels for extensive data acquisition and serial communication in sensor interfacing and telemetry.

Analog Comparators and HLVD: Dual analog comparators and 16-level High/Low-Voltage Detection (HLVD) facilitate precise voltage monitoring and decision-making, supporting accuracy-demanding applications.

Special Features

C Compiler Optimized Architecture: Tailored for C compilers, this feature simplifies development, streamlining the path to market for complex projects.

Durable Memory Cycles: Offers 100,000 erase/write cycles for Enhanced Flash and up to 1,000,000 cycles for EEPROM, ensuring the durability and reliability of stored data in rigorous applications.

Self-Programmable and In-Circuit Debug: Supports self-programming and in-circuit debugging via two pins, improving programming flexibility and troubleshooting efficiency, a notable advantage in various engineering practices.

Wide Voltage Range: Operates from 2.0V to 5.5V with brown-out reset options, providing stable performance across diverse power conditions in portable and power-sensitive devices.

PIC18F4620 Technical Specifications

Type	Parameter
Factory Lead Time	6 Weeks
Mount	Through Hole
Mounting Type	Through Hole
Package / Case	40-DIP (0.600, 15.24mm)
Number of Pins	40
Data Converters	A/D 13x10b
Number of I/Os	36
Watchdog Timers	Yes
Operating Temperature	-40°C~125°C TA
Packaging	Tube
Series	PIC® 18F
Published	2004
JESD-609 Code	e3
Pbfree Code	Yes
Part Status	Active
Moisture Sensitivity Level (MSL)	Not Applicable
Number of Terminations	40
Terminal Finish	Matte Tin (Sn)
Max Power Dissipation	1W
Terminal Position	DUAL
Supply Voltage	5V
Frequency	40MHz
Base Part Number	PIC18F4620
Pin Count	40
Supply Voltage-Max (Vsup)	5.5V
Power Supplies	5V
Interface	I2C, SPI, UART, USART
Memory Size	64kB
Oscillator Type	Internal
RAM Size	3.8K x 8
Voltage - Supply (Vcc/Vdd)	4.2V~5.5V
uPs/uCs/Peripheral ICs Type	MICROCONTROLLER
Number of Bits	8
Core Processor	PIC
Peripherals	Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Program Memory Type	FLASH
Core Size	8-Bit
Program Memory Size	64KB 32K x 16
Connectivity	I2C, SPI, UART/USART
Supply Current-Max	35mA
Bit Size	8
Access Time	40 μs
Has ADC	YES
DMA Channels	NO
Data Bus Width	8b
Number of Timers/Counters	4
EEPROM Size	1K x 8
CPU Family	PIC
Number of ADC Channels	13
Number of PWM Channels	2
Number of USB Channels	1
Height	4.953mm
Length	53.09mm
Width	14.732mm
REACH SVHC	No SVHC
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

Functional Block Diagram

 

Equivalent Models of PIC18F4620

• PIC18F4620-I/ML MICROCONTROLLERS AND PROCESSORS 

• PIC18LF4620-I/ML MICROCONTROLLERS AND PROCESSORS 

• PIC18LF4620T-E/ML MICROCONTROLLERS AND PROCESSORS

• PIC18F4620-E/ML MICROCONTROLLERS AND PROCESSORS

PIC18F4620 Comparable Parts

Part Number	Manufacturer	Package / Case	Number of Pins	Data Bus Width	Number of I/O	Interface	Memory Size	Supply Voltage	Peripherals	View Compare
PIC18F4620-E/P	Microchip Technology	40-DIP (0.600, 15.24mm)	40	8 b	36	I2C, SPI, UART, USART	64 kB	5 V	Brown-out Detect/Reset, HLVD, POR, PWM, WDT
PIC18F4680-E/P	Microchip Technology	40-DIP (0.600, 15.24mm)	40	8 b	36	CAN, I2C, SPI, UART, USART	64 kB	5 V	Brown-out Detect/Reset, HLVD, POR, PWM, WDT	PIC18F4620-E/P VS PIC18F4680-E/P
PIC18F4680-I/P	Microchip Technology	40-DIP (0.600, 15.24mm)	40	8 b	36	CAN, I2C, SPI, UART, USART	64 kB	5 V	Brown-out Detect/Reset, HLVD, POR, PWM, WDT	PIC18F4620-E/P VS PIC18F4680-I/P
PIC18F4610-I/P	Microchip Technology	40-DIP (0.600, 15.24mm)	40	8 b	36	I2C, SPI, UART, USART	64 kB	5 V	Brown-out Detect/Reset, HLVD, POR, PWM, WDT	PIC18F4620-E/P VS PIC18F4610-I/P

Packaging and Dimensions of PIC18F4620

PIC18F4620 Dimensions	Dimension Limits	MIN (inches)	NOM (inches)	MAX (inches)
Number of Pins	N		40
Pitch	e		0.100 BSC
Top to Seating Plane	A			0.25
Molded Package Thickness	A2	0.125		0.195
Base to Seating Plane	A1	0.015
Shoulder to Shoulder Width	E	0.59		0.625
Molded Package Width	E1	0.485		0.58
Overall Length	D	1.98		2.095
Tip to Seating Plane	L	0.115		0.2
Lead Thickness	c	0.008		0.015
Upper Lead Width	b1	0.03		0.07
Lower Lead Width	b	0.014		0.023
Overall Row Spacing	eB			0.7

Manufacturer Background

Microchip Technology Inc. excels in microcontroller, mixed-signal, and analog advancements. The firm actively engages in educational outreach, supplying an extensive collection of resources. Among them are organized labs, detailed curricula, specialized training sessions, and advanced development tools.

Datasheet PDF

PIC18LF4620-I/ML Datasheets:

PIC18Fx525, x620 Datasheet.pdf

Label and Packing Changes 23/Sep/2015.pdf

Packing Changes 10/Oct/2016.pdf

PIC18F(2, 4)zzz Programming Specification.pdf

2.73KHz.pdf

Wire Bond Chg Qual 19/Jul/2016.pdf

PIC18F4620-E/P Datasheets:

PIC18F(2, 4)zzz Programming Specification.pdf

PIC18Fx525, x620 Datasheet.pdf

Label and Packing Changes 23/Sep/2015.pdf

Packing Changes 10/Oct/2016.pdf

Mult Dev 13/Apr/2020.pdf

Wire Chg 13/Jan/2016.pdf

Frequently Asked Questions [FAQ]

1. What is PIC18F4620?

The PIC18F4620 is a versatile microcontroller praised for its adaptability in industrial applications. Its architecture, designed to minimize power usage, delivers robust processing capabilities that resonate well in rigorous environments. Others often lean towards this microcontroller given its endurance and the extensive tool support that simplifies the development processes.

2. How do I program pic18f4620?

To program the PIC18F4620, follow these steps:

Open MPLAB, an all-encompassing IDE designed for Microchip products.

Choose the type of project you are working on.

Specify the exact microcontroller model.

Select the appropriate compiler.

Define the project path for organized workflow.

3. What's the size of PIC18f4620?

The PIC18F4620, with dimensions of 2.095 x 0.58 x 0.195 inches, seamlessly fits into tight spaces, required in compact and embedded systems. This size allows for effortless integration into various hardware layouts, aligning with the space-conscious design principles that drive contemporary technology advancements.