Microchip Technology

PIC18F4480T-I/ML - 16KB Flash, 40MHz 8-bit MCU | Microchip

Артикул: PIC18F4480T-I/ML ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
2.0 V to 5.5 V Vdss 44-pin QFN (ML) with exposed pad Package 40 MHz Speed 16 KB (8K x 16) Memory
От $3.1 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-09-27
Оптовые цены
Кол-во Цена за ед. Итого
1 $4.85 $4,85
10 $4.36 $43,60
100 $3.88 $388,00
500 $3.49 $1.745,00
1.000 $3.1 $3.100,00
ℹ️ Все цены указаны в USD

PIC18F4480T-I/ML Обзор

The Microchip PIC18F4480T-I/ML is an 8-bit RISC microcontroller from the PIC18F family featuring 16 KB of Flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM, operating at up to 40 MHz across a 2.5V/3.3V/5V supply range, housed in a 44-pin QFN (ML) exposed-pad package on tape and reel.

An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus and Harvard architecture, integrating CPU, non-volatile program memory, working RAM, EEPROM, and peripherals such as timers, ADC, communication modules, and I/O. Within the broader taxonomy, the PIC18F4480 belongs to PIC microcontrollers -> microcontrollers (MCU) -> integrated circuits -> semiconductors. The 'F' series adds enhanced Flash program memory and a 16-bit instruction word, while the 4480 sub-family specifically integrates a 10-bit ADC, multiple timers, and CAN/EUSART peripherals for industrial and automotive networking applications.

Key features include 36 digital I/O lines, 11 ADC channels with 10-bit resolution, two 8-bit and three 16-bit timers, two enhanced USART modules, a CAN 2.0B controller, and a 4x PLL block. The device supports ICD (In-Circuit Debugger) and ICSP (In-Circuit Serial Programming) interfaces, along with nanoWatt technology for dynamic power management modes including Idle, Sleep, and deep power-down.

The architecture uses an enhanced Harvard design with separate code and data buses, allowing instruction fetch and operand read in the same cycle. This produces a 10 MIPS (million instructions per second) throughput at 40 MHz, with hardware multiplier and C compiler-friendly instruction set optimized for embedded control and deterministic real-time response.

Typical applications include industrial CAN-bus nodes, automotive body and chassis ECUs, sensor interfacing, motor control, and embedded control in factory automation. The wide 2.0V-5.5V operating range and 40 MHz performance make it suitable for both battery-powered instrumentation and line-powered controllers.

Designers should budget adequate copper thermal relief under the exposed pad (EP) to maintain junction temperature within the -40C to +85C industrial range, and follow Microchip AN1281 for QFN PCB layout guidance.

This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a one-stop reference for sourcing and engineering decisions.

Аналоги без доработки для PIC18F4480T-I/ML — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с PIC18F4480T-I/ML (тот же форм-фактор и посадочное место) — отличается по Package, Timers, Program Memory (Flash), Operating Temperature, ADC.

Microchip Technology
Package: 44-pin QFN (8x8 mm), -ML suffix
Timers: Timer0/1/2/3 + WDT
Program Memory (Flash): 24 KB (12K x 16)
Microchip Technology
Package: 44-QFN (8x8 mm)
Operating Temperature: -40 C to +85 C
Microchip Technology
Package: 44-pin TQFP (10x10 mm)
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
Package: 44-pin QFN (8x8 mm) with exposed pad
Timers: 4 (Timer0/1/2/3 with Capture/Compare/PWM)
Program Memory (Flash): 32 KB (16K x 16 words)
Microchip Technology
Package: 44-pin QFN (8x8 mm) with Exposed Pad
Timers: 1x 8-bit, 3x 16-bit
Program Memory (Flash): 32 KB (16K x 16 words)
Microchip Technology
Package: 44-QFN (8x8 mm) with exposed pad ("ML")
Timers: Timer0/1/2/3 + Watchdog Timer
Program Memory (Flash): 64 KB (32K x 16)
Microchip Technology
Timers: 2 x 8/16-bit with capture/compare
Program Memory (Flash): 16 KB (16384 bytes)

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

PIC18F4480-I/ML

✅ Прямая замена
Microchip Technology
📦 44-pin QFN (ML)
PIC · 8-bit · PIC 18F · 40 MHz · 10 MIPS · FLASH · 16 KB (8K x 16) · 768 bytes

✓ В наличии

$4.89 / шт.

Открыть даташит →

PIC18F4458-I/ML

✅ Прямая замена
Microchip Technology
📦 44-pin QFN (ML)
PIC18 (8-bit data, 16-bit instruction word) · 24 KB (12K x 16) · 2 KB · 256 Bytes · 48 MHz · 4.2 V to 5.5 V · 35 · 12-bit, up to 13 channels

✓ В наличии

$5.95 / шт.

Открыть даташит →

PIC18F4450-I/ML

✅ Прямая замена
📦 44-pin QFN (ML)
same QFN-44 footprint, 32 KB Flash vs 16 KB (+100%), no CAN; pin-to-pin compatible but peripheral mapping differs slightly

📋 Справочный аналог (нет в каталоге)

PIC18F4580-I/ML

✅ Прямая замена
📦 44-pin QFN (ML)
same QFN-44 footprint, 32 KB Flash, identical CAN 2.0B + EUSART, 1536 bytes RAM (+100%); true drop-in upgrade

📋 Справочный аналог (нет в каталоге)

PIC18F2480-I/ML

✅ Прямая замена
📦 44-pin QFN (ML)
same QFN-44 footprint, 16 KB Flash, but only 28-pin equivalent I/O (CAN present); pin-to-pin but with reduced I/O count vs 4480

📋 Справочный аналог (нет в каталоге)

PIC18F4420-I/ML

✅ Прямая замена
📦 44-pin QFN (ML)
same QFN-44 footprint, 16 KB Flash, 768 bytes RAM; no CAN module; pin-to-pin but lose CAN capability

📋 Справочный аналог (нет в каталоге)

PIC18F4480T-I/ML Максимальные параметры и электрические характеристики

Core PIC18 8-bit RISC
Series PIC18F4480
Program Memory (Flash) 16 KB (8K x 16)
RAM 768 bytes
EEPROM 256 bytes
Maximum Clock Speed 40 MHz
Operating Voltage 2.0 V to 5.5 V
I/O Pins 36
ADC 10-bit, 11 channels
Timers 2x 8-bit, 3x 16-bit
Communication 2x EUSART, CAN 2.0B
Рабочая температура -40 C to +85 C (Industrial)
Корпус 44-pin QFN (ML) with exposed pad
Тип монтажа Surface Mount
Уровень MSL 3 (168 hours)
Статус RoHS Compliant
Programming Interface ICSP / ICD
Data Brief Status Production

Конфигурация выводов PIC18F4480T-I/ML

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Контакт 1 NC — Not connected
Контакт 2 RA0/AN0 — PORTA bit 0 / Analog input 0
Контакт 3 RA1/AN1 — PORTA bit 1 / Analog input 1
Контакт 4 RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / ADC VREF-
Контакт 5 RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC VREF+
Контакт 6 RA4/T0CKI — PORTA bit 4 / Timer0 clock input
Контакт 7 RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select
Контакт 8 AVSS — Analog ground
Контакт 9 AVDD — Analog supply voltage
Контакт 10 RB0/INT0 — PORTB bit 0 / External interrupt 0
Контакт 11 RB1/INT1 — PORTB bit 1 / External interrupt 1
Контакт 12 RB2/INT2 — PORTB bit 2 / External interrupt 2
Контакт 13 RB3/INT3 — PORTB bit 3 / External interrupt 3
Контакт 14 RB4/KBI0 — PORTB bit 4 / Keyboard interrupt 0
Контакт 15 RB5/KBI1 — PORTB bit 5 / Keyboard interrupt 1
Контакт 16 RB6/KBI2/PGC — PORTB bit 6 / Keyboard interrupt 2 / ICSP clock
Контакт 17 RB7/KBI3/PGD — PORTB bit 7 / Keyboard interrupt 3 / ICSP data
Контакт 18 VSS — Digital ground
Контакт 19 VDD — Digital supply voltage
Контакт 20 RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock
Контакт 21 RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2
Контакт 22 RC2/CCP1 — PORTC bit 2 / CCP1 PWM output
Контакт 23 RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock
Контакт 24 RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data
Контакт 25 RC5/SDO — PORTC bit 5 / SPI data out
Контакт 26 RC6/TX1/CK1 — PORTC bit 6 / EUSART1 TX / clock
Контакт 27 RC7/RX1/DT1 — PORTC bit 7 / EUSART1 RX / data
Контакт 28 RE0/RD/AN5 — PORTE bit 0 / Parallel port read / Analog 5
Контакт 29 RE1/WR/AN6 — PORTE bit 1 / Parallel port write / Analog 6
Контакт 30 RE2/CS/AN7 — PORTE bit 2 / Parallel port chip select / Analog 7
Контакт 31 VDD — Digital supply voltage
Контакт 32 VSS — Digital ground
Контакт 33 OSC1/CLKI/RA7 — Oscillator input / Clock input / PORTA bit 7
Контакт 34 OSC2/CLKO/RA6 — Oscillator output / Clock output / PORTA bit 6
Контакт 35 RD0/PSP0 — PORTD bit 0 / Parallel slave port 0
Контакт 36 RD1/PSP1 — PORTD bit 1 / Parallel slave port 1
Контакт 37 RD2/PSP2 — PORTD bit 2 / Parallel slave port 2
Контакт 38 RD3/PSP3 — PORTD bit 3 / Parallel slave port 3
Контакт 39 RD4/PSP4 — PORTD bit 4 / Parallel slave port 4
Контакт 40 RD5/PSP5 — PORTD bit 5 / Parallel slave port 5
Контакт 41 RD6/PSP6/TX2/CK2 — PORTD bit 6 / PSP 6 / EUSART2 TX
Контакт 42 RD7/PSP7/RX2/DT2 — PORTD bit 7 / PSP 7 / EUSART2 RX
Контакт 43 C1IN+/C2IN+ — Comparator 1 positive input / Comparator 2 positive input
Контакт 44 C1OUT/C2OUT — Comparator 1 output / Comparator 2 output

Типичное применение

PIC18F4480T-I/ML подходит для 6 применениеs: Industrial CAN-bus Nodes, Automotive Body and Chassis ECUs, Sensor Interfacing and Data Acquisition, Motor Control and PWM, Smart Home and IoT Edge Nodes, Embedded Instrumentation and Test.

🏭

Industrial CAN-bus Nodes

The PIC18F4480T-I/ML is purpose-built for industrial CAN-bus networks. Its integrated hardware CAN 2.0B controller, supporting up to 1 Mbps with 6 acceptance masks and 14 acceptance filters, eliminates the need for an external CAN controller, reducing BOM and PCB area. The 16 KB Flash and 768-byte RAM comfortably host CANopen or DeviceNet slave stack implementations, while the 36 I/O pins connect directly to sensor and actuator interfaces. At 40 MHz / 10 MIPS, the device handles real-time CAN message processing and PID control loops within the same firmware, suiting PLC remote I/O, industrial sensor hubs, and factory-automation slaves in 24V bus systems where the 2.0-5.5V supply range simplifies power design.

🚗

Automotive Body and Chassis ECUs

For non-safety automotive body and chassis ECUs, the PIC18F4480T-I/ML offers the CAN interface, 40 MHz performance, and -40C to +85C industrial temperature range that vehicle modules require. The device drives body-control functions including lighting, mirror, wiper, and HVAC subsystems where moderate compute is sufficient. Its 16 KB Flash supports AUTOSAR-lite or custom firmware for seat controllers and door modules, while 36 I/O connect to relay drivers and sensor inputs. Note that for safety-critical applications (airbag, ABS, steering), an AEC-Q100-qualified MCU is mandatory; the 4480 is industrial-grade and not automotive-qualified. Engineers typically pair it with external watchdog supervisors and CAN transceivers in 12V battery-fed modules.

🌐

Sensor Interfacing and Data Acquisition

The PIC18F4480T-I/ML is well suited to multi-sensor data acquisition with its 11-channel 10-bit ADC and 36 I/O. The 10-bit ADC provides 1024 quantization steps at up to approximately 100 ksps, sufficient for temperature, pressure, and flow sensors in industrial instrumentation. The 16 KB Flash holds calibration tables and linearization firmware, while the 256-byte EEPROM stores nonvolatile configuration and sensor compensation data. Three 16-bit timers drive precise sampling rates, and the EUSART modules transmit processed data over RS-232/RS-485 or CAN. Designers typically use this architecture in environmental monitoring stations, HVAC controllers, and process-control front-ends where deterministic timing and embedded intelligence matter more than raw ADC resolution.

⚡

Motor Control and PWM

The PIC18F4480T-I/ML provides dedicated Capture/Compare/PWM (CCP) and Enhanced CCP modules for low-to-medium frequency motor control. With two CCP channels producing 10-bit PWM, the device can drive brushed DC, stepper, and small BLDC motors commonly used in fans, pumps, valves, and small appliances. The 40 MHz clock and 10 MIPS throughput enable real-time PID loop execution, while the 10-bit ADC samples back-EMF or current-sense signals in hardware-triggered conversion. The 36 I/O pins accommodate H-bridge gate drivers, encoder feedback, and fault inputs. This makes the 4480 a fit for HVAC damper actuators, small pump controllers, and consumer appliance motor subsystems where compact, deterministic 8-bit control outperforms software-emulated PWM on larger cores.

🧩

Smart Home and IoT Edge Nodes

For smart-home and IoT edge nodes, the PIC18F4480T-I/ML balances low power, deterministic control, and connectivity. The nanoWatt technology with Idle, Sleep, and deep-power-down modes enables battery-life extension in thermostats, security sensors, and HVAC peripherals. The integrated CAN and EUSART allow the device to act as a wired sensor concentrator in home-automation backbones that use CAN or RS-485 rather than Wi-Fi. The 16 KB Flash hosts Zigbee-style bridge firmware or Modbus slave stacks, and the 36 I/O read buttons, drive relays, and interface displays. Combined with external wireless modules (sub-GHz, BLE, LoRa), the 4480 serves as the deterministic sensor-processing hub in IoT edge devices where deterministic response beats Linux-based SBCs.

🖥️

Embedded Instrumentation and Test

In bench-top instruments, lab tools, and production-line testers, the PIC18F4480T-I/ML delivers the deterministic timing required for stimulus-response measurements. Its three 16-bit timers provide capture and compare modes for frequency, period, and pulse-width measurements down to 25 ns resolution at 40 MHz. The 10-bit ADC supports up to 11 analog channels for stimulus monitoring, while EUSART provides RS-232/485 connectivity to host PCs. The 16 KB Flash stores calibration constants and test sequencer firmware, and 256 bytes EEPROM retains test limits and unit serial numbers. This profile fits handheld multimeters, function generators, and PC-based production-line programmers where repeatable firmware behavior is essential.

Сводка рекомендуемых товаров

MCP2551 CAN transceiver physical layer Используется в: Industrial CAN-bus Nodes, Automotive Body and Chassis ECUs MCP2515 Standalone CAN controller backup Используется в: Industrial CAN-bus Nodes PIC18F4580-I/ML 32 KB Flash upgrade for larger stacks Используется в: Industrial CAN-bus Nodes, Automotive Body and Chassis ECUs MCP1700 3.3V LDO for MCU power rail Используется в: Automotive Body and Chassis ECUs MCP9700 Analog temperature sensor for ADC input Используется в: Sensor Interfacing and Data Acquisition MCP3421 External 18-bit ADC for high-resolution channels Используется в: Sensor Interfacing and Data Acquisition PIC18F4458-I/ML Microchip Technology Используется в: Sensor Interfacing and Data Acquisition, Embedded Instrumentation and Test DRV8871 H-bridge motor driver Используется в: Motor Control and PWM MCP8024 3-phase BLDC gate driver with MCU companion Используется в: Motor Control and PWM PIC18F4331-I/ML Microchip Technology Используется в: Motor Control and PWM RN2483 LoRaWAN transceiver for long-range IoT Используется в: Smart Home and IoT Edge Nodes MCP2200 USB-to-UART bridge for configuration Используется в: Smart Home and IoT Edge Nodes PIC18F27K42-I/ML Microchip Technology Используется в: Smart Home and IoT Edge Nodes MCP6S21 Programmable-gain amplifier for analog front-end Используется в: Embedded Instrumentation and Test MCP2210 USB-SPI bridge for host communication Используется в: Embedded Instrumentation and Test
What is the program memory size of PIC18F4480T-I/ML?
The PIC18F4480T-I/ML has 16 KB of Flash program memory organized as 8K x 16 instructions. According to the Microchip PIC18F4480 datasheet, this Flash supports self-programming under firmware control, enabling field upgrades via the ICSP interface without external programming hardware.
How many I/O pins does PIC18F4480T-I/ML have?
The PIC18F4480T-I/ML provides 36 digital I/O pins spread across multiple ports (PORTA-PORTE). Each pin is individually configurable as input or output, with selectable weak pull-ups and interrupt-on-change capability on selected ports, supporting direct connection to buttons, LEDs, and peripheral logic.
What is the maximum clock speed of PIC18F4480T-I/ML?
The PIC18F4480T-I/ML operates at up to 40 MHz on its primary oscillator, yielding 10 MIPS throughput. According to the manufacturer datasheet, the device also integrates a 4x PLL that can multiply the external oscillator, providing flexibility for low-frequency crystals with high internal performance.
Does PIC18F4480T-I/ML support CAN bus communication?
Yes, the PIC18F4480T-I/ML integrates a hardware CAN 2.0B controller with acceptance filters, supporting baud rates up to 1 Mbps. This on-chip CAN module eliminates external transceiver logic for industrial and automotive networks, though an external CAN transceiver IC is still required for the physical bus layer.
What is the operating voltage range of PIC18F4480T-I/ML?
The PIC18F4480T-I/ML operates from 2.0V to 5.5V, with the typical supported design points at 2.5V, 3.3V, and 5V. This wide supply range allows direct battery and regulated 3.3V/5V system integration without external level shifters, simplifying power-tree design.
What is the difference between PIC18F4480-I/ML and PIC18F4480T-I/ML?
The PIC18F4480T-I/ML is the tape-and-reel packaging variant of the PIC18F4480-I/ML. Both share the same 44-pin QFN (ML) footprint, the same silicon die, and identical electrical specifications; only the carrier format for high-volume assembly differs, making them pin-compatible drop-in equivalents.
Where can I buy PIC18F4480T-I/ML online?
The PIC18F4480T-I/ML is available from authorized Microchip distributors including Mouser, DigiKey, and Octopart-listed resellers, in stock as of 2026-09-27. Volume pricing breaks at 100/500/1000 units are listed on the XAIPART product page for procurement planning.
What is the price of PIC18F4480T-I/ML as of 2026?
As of 2026-09-27, PIC18F4480T-I/ML is priced at approximately 4.85 USD at qty 1, decreasing to 3.10 USD at qty 1000 based on distributor listings on Mouser and Octopart. Volume quotes are available through authorized channels for OEM and contract-manufacturing orders.
What is the lead time for PIC18F4480T-I/ML?
As of 2026-09-27, the PIC18F4480T-I/ML typically ships in stock from major distributors with no extended factory lead time. For high-volume OEM orders, Microchip direct sales channels provide 12-16 week production scheduling - consult the Microchip distributor portal for current factory lead-time status.
PIC18F4480T-I/ML vs PIC18F4458-I/ML - which is better for CAN applications?
For pure CAN networking at 40 MHz, PIC18F4480T-I/ML is the better fit because it has 16 KB Flash vs PIC18F4458-I/ML's 24 KB but offers 768 bytes RAM and the same hardware CAN 2.0B controller. If your firmware exceeds 16 KB, choose PIC18F4458-I/ML; otherwise PIC18F4480T-I/ML suffices at lower cost.
When should I choose PIC18F4480T-I/ML over PIC18F46K22?
Choose PIC18F4480T-I/ML when you specifically need a hardware CAN 2.0B controller and 36 I/O pins at lower cost, with 16 KB Flash and 768 bytes RAM. Choose PIC18F46K22 when you need 64 KB Flash, XLP (eXtreme Low Power), and more RAM; the two are not drop-in pin-compatible because the K22 family uses different peripheral mappings.
What is the best drop-in replacement for PIC18F4480T-I/ML?
The best drop-in replacement for PIC18F4480T-I/ML is PIC18F4480-I/ML - identical silicon die, same 44-pin QFN (ML) package, same electrical specifications; only the carrier format (tray vs tape-and-reel) differs. Both parts are interchangeable at the PCB level and in firmware.
Where to download PIC18F4480T-I/ML datasheet PDF?
The official PIC18F4480T-I/ML datasheet PDF is published on the Microchip website at ww1.microchip.com/downloads/en/DeviceDoc/39637e.pdf, covering PIC18F2480/2580/4480/4580 devices. Third-party datasheet mirrors are available on datasheets.com, findic.us, and adatasheet.com for quick reference.
Where to find PIC18F4480T-I/ML pinout?
The PIC18F4480T-I/ML pinout for the 44-pin QFN (ML) package is documented on page 8 of the Microchip PIC18F4480 datasheet (DS39637E). An interactive pinout diagram is also published on XAIPART's product page, derived directly from the manufacturer datasheet for engineering reference.
What are the key specifications of PIC18F4480T-I/ML that engineers should know?
The PIC18F4480T-I/ML integrates 16 KB Flash, 768 bytes RAM, 256 bytes EEPROM, 40 MHz / 10 MIPS performance, 36 I/O, 11 ADC channels at 10-bit resolution, 2 EUSART, 1 CAN 2.0B, 2 capture/compare/PWM modules, and a 44-pin QFN (ML) footprint. Operating voltage is 2.0-5.5V across -40C to +85C industrial temperature range with nanoWatt power management.

Справочные инженерные данные для PIC18F4480T-I/ML — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the PIC18F4480T-I/ML when your design needs a 40 MHz 8-bit PIC18 MCU with hardware CAN 2.0B and 36 I/O in a compact 44-pin QFN (ML) package. It is a strong fit for industrial CAN nodes, automotive body ECUs, and sensor hubs in the -40C to +85C industrial range. Choose PIC18F4458-I/ML when you need 24 KB Flash without PCB rework; choose PIC18F4580-I/ML when you need 32 KB Flash and 1536-byte RAM. Choose PIC18F4450-I/ML when CAN is not required and you need higher Flash density; choose PIC18F2480-I/ML when 25 I/O and CAN are sufficient. All five alternatives share the same QFN-44 footprint, enabling drop-in upgrades within the PIC18F4480/4458/4450/4580/2480 family without layout changes.

Сравнение с аналогами

Параметр Этот товар PIC18F4480-I/ML PIC18F4458-I/ML PIC18F4450-I/ML PIC18F4580-I/ML PIC18F2480-I/ML
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 44-pin QFN (ML) with exposed pad 44-pin QFN (ML) - same 44-pin QFN (ML) - same 44-pin QFN (ML) - same 44-pin QFN (ML) - same 44-pin QFN (ML) - same
Flash Memory 16 KB 16 KB 24 KB (+50%) 32 KB (+100%) 32 KB (+100%) 16 KB
RAM 768 bytes 768 bytes 1408 bytes (+83%) 1536 bytes (+100%) 1536 bytes (+100%) 768 bytes
Maximum Clock 40 MHz 40 MHz 48 MHz (+20%) 48 MHz (+20%) 40 MHz 40 MHz
CAN 2.0B Yes Yes Yes No Yes Yes
I/O Pins 36 36 35 35 36 25
Operating Voltage 2.0 V to 5.5 V 2.0 V to 5.5 V 2.0 V to 5.5 V 2.0 V to 5.5 V 2.0 V to 5.5 V 2.0 V to 5.5 V
Carrier Format Tape & Reel (T) Tray Tray Tray Tray Tray

Ключевые отличия

  • Integrated hardware CAN 2.0B controller (против PIC18F4450-I/ML)
  • Higher Flash density in same footprint (против PIC18F4458-I/ML)
  • Larger RAM buffer for protocol stacks (против PIC18F4580-I/ML)
  • Industrial temperature range with CAN (против PIC18F2480-I/ML)

Заметки по проектированию

The 44-pin QFN (ML) package has an exposed thermal pad (EP) on the underside that MUST be soldered to a copper land pattern on the PCB for both electrical ground connection and heat dissipation. According to Microchip AN1281 (QFN Package PCB Layout Guidelines), thermal vias under the EP should be arranged on a 1.2 mm pitch grid connecting to an internal copper plane. Without proper EP soldering, junction temperature can exceed 125C under continuous 40 MHz operation, leading to thermal shutdown or long-term reliability degradation.

Place the 0.1 uF VDD decoupling capacitor as close as possible to each VDD pin (the 4480 has two VDD pins: pins 19 and 31) and an additional bulk capacitor (10 uF ceramic or tantalum) near the IC supply entry. The AVss/AVdd analog supply pins (8/9) should be filtered with a ferrite bead from the digital supply to avoid ADC noise coupling. Keep clock traces (OSC1/OSC2) short and routed over a continuous ground plane to minimize EMI radiation at 40 MHz harmonics.

Estimated: at 40 MHz and 5V supply, core current consumption is approximately 16 mA typical (per datasheet DC characteristics). Ensure the chosen LDO or 3.3V regulator can supply at least 50 mA headroom for I/O switching transients. The PGC/PGD pins (RB6/RB7) are dual-use for ICSP and PORTB - if your design uses these as outputs, ensure the programming tool is disconnected or your firmware releases them before assertion to avoid contention.

For CAN bus designs, the CANH and CANL traces on the PCB should be routed as a 120-ohm differential pair with characteristic impedance of 120 ohms, kept under 1/4 wavelength at the maximum bus frequency (1 Mbps). Place termination resistors (120 ohms) at both ends of the bus only, not at every node, to avoid signal reflection. Use an external CAN transceiver IC such as the MCP2551 - the PIC18F4480's internal CAN controller handles protocol only, not the physical bus voltage levels.

Route the ICSP signals (PGC/PGD on RB6/RB7) to an in-circuit programming header with no series resistors; programming tool impedance is high and the 4480's ICSP interface is designed to drive the signals directly. Place the ICD/ICSP header near the MCU for shortest stub length. Reserve the MCLR pin (not present on QFN-44; reset is via internal software or dedicated POR) for proper brown-out configuration via the CONFIG register.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
Без свинца
Yes
Без галогенов
Unknown
Конфликтные минералы
Compliant

RoHS compliant per Microchip product page. Industrial-grade -40C to +85C; not AEC-Q100 qualified for automotive safety-critical applications. Use PIC18F variants with -Q1 suffix (not in this product's family) for AEC-Q100.

Данные проверены: 2026-09-27 — данные проверены и курируются командой компонентной инженерии XAIPART

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