PIC18LF4620T-I/PT - 8-Bit 40MHz 64KB Flash MCU | Microchip
MPN: PIC18LF4620T-I/PT ✓ Hoạt độngPIC18LF4620T-I/PT Tóm tắt
A PIC18 microcontroller is a member of Microchip's 8-bit RISC architecture family, sitting within the broader taxonomy of microcontrollers -> microcontrollers -> integrated circuits -> semiconductors. The PIC18 family uses a 16-bit instruction word with an 8-bit data path, providing an enhanced instruction set over earlier PIC16 devices while maintaining full code compatibility with the PIC16 mid-range core. The "nanoWatt Technology" branding refers to Microchip's power-management features including multiple idle and sleep modes, oscillator start-up timers, and ultra-low-power Real-Time Clock/Calendar operation.
Key features include 64 KB (32 K x 16) flash program memory, 3968 bytes of RAM, 1024 bytes of EEPROM, a 10-bit Analog-to-Digital Converter (ADC) with up to 13 input channels, multiple communication peripherals (EUSART, MSSP for SPI/I2C), and four 8-bit/16-bit timers. The device supports up to 36 digital I/O pins, hardware multiplier, and enhanced Capture/Compare/PWM (ECCP) modules, enabling direct motor control, power-conversion, and lighting applications without external logic.
The PIC18LF4620T-I/PT integrates nanoWatt power-management technology with multiple low-power modes (RUN, IDLE, SLEEP) and a fast wake-up from sleep with 1 µs typical response. The internal RC oscillator and PLL options support flexible clock configurations from 31 kHz to 40 MHz. The architecture also supports in-circuit serial programming (ICSP) and in-circuit debugging (ICD) via MPLAB tools, allowing field firmware upgrades and real-time development.
Typical applications include industrial automation controllers, automotive body electronics, USB peripherals, sensor signal conditioning, smart-card readers, and consumer appliances. The wide voltage range (2.0 V to 5.5 V) makes it particularly well suited to battery-powered devices such as portable instrumentation and remote sensors. The 64 KB flash provides sufficient code space for graphical user interfaces, protocol stacks (Modbus, LIN), and over-the-air (OTA) firmware update routines.
When designing with this device, consider using the PIC18F4620 (5 V only) variant for cost-sensitive line-powered designs, or PIC18LF45K80 (lower power with enhanced peripherals) for battery applications. Always consult the PIC18F4620 family datasheet for ADC acquisition-time calculations, MSSP timing margins, and CCP PWM resolution trade-offs at system clock frequencies above 25 MHz.
This page synthesizes distributor pricing, same-brand drop-in alternatives (PIC18LF4620-I/PT, PIC18F4620T-I/PT, etc.), and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF4620T-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18LF4620T-I/PT (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Timers, ADC, Package, Program Memory (Flash).
PIC18LF4620-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F4620T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF4610T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF45K80T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF45K40T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F45K22T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18LF4620T-I/PT Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC18F |
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 3968 bytes |
| EEPROM | 1024 bytes |
| Maximum CPU Clock | 40 MHz |
| Instruction Set Width | 16-bit |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Timers | Four 8/16-bit Timer modules |
| Communication Peripherals | EUSART, MSSP (SPI/I2C) |
| PWM | Enhanced CCP (ECCP) modules |
| Nhiệt độ hoạt động | -40 °C to +85 °C (Industrial) |
| Hộp | 44-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 |
Cấu hình chân PIC18LF4620T-I/PT
| Chân 1 | RC2/CCP1 — Digital I/O / Enhanced CCP1 PWM output |
| Chân 2 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| Chân 3 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| Chân 4 | RC5/SDO — Digital I/O / SPI data out |
| Chân 5 | RC6/TX/CK — Digital I/O / EUSART TX / clock |
| Chân 6 | RC7/RX/DT — Digital I/O / EUSART RX / data |
| Chân 7 | RD0/PSP0 — Digital I/O / Parallel Slave Port bit 0 |
| Chân 8 | RD1/PSP1 — Digital I/O / Parallel Slave Port bit 1 |
| Chân 9 | RD2/PSP2 — Digital I/O / Parallel Slave Port bit 2 |
| Chân 10 | RD3/PSP3 — Digital I/O / Parallel Slave Port bit 3 |
| Chân 11 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output / clock in |
| Chân 12 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / CCP2 output |
| Chân 13 | RC2/CCP1 — Digital I/O / Enhanced CCP1 output |
| Chân 14 | RB7/PGD — Digital I/O / Programming Data pin |
| Chân 15 | RB6/PGC — Digital I/O / Programming Clock pin |
| Chân 16 | RB5/PGM — Digital I/O / Low-voltage ICSP Programming |
| Chân 17 | RB4 — Digital I/O |
| Chân 18 | RB3/AN9/CCP2 — Digital I/O / Analog input 9 / CCP2 output |
| Chân 19 | RB2/AN8 — Digital I/O / Analog input 8 |
| Chân 20 | RB1/AN10 — Digital I/O / Analog input 10 |
| Chân 21 | RB0/AN12/INT0 — Digital I/O / Analog input 12 / External interrupt 0 |
| Chân 22 | VSS — Ground reference |
| Chân 23 | VDD — Positive supply voltage |
| Chân 24 | RA2/AN2/VREF- — Digital I/O / Analog input 2 / ADC reference negative |
| Chân 25 | RA3/AN3/VREF+ — Digital I/O / Analog input 3 / ADC reference positive |
| Chân 26 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| Chân 27 | RA5/AN4/SS — Digital I/O / Analog input 4 / SPI slave select |
| Chân 28 | RE0/RD/AN5 — Digital I/O / Parallel Slave Port read / Analog input 5 |
| Chân 29 | RE1/WR/AN6 — Digital I/O / Parallel Slave Port write / Analog input 6 |
| Chân 30 | RE2/CS/AN7 — Digital I/O / Parallel Slave Port chip select / Analog input 7 |
| Chân 31 | VDD — Positive supply voltage |
| Chân 32 | VSS — Ground reference |
| Chân 33 | RA0/AN0 — Digital I/O / Analog input 0 |
| Chân 34 | RA1/AN1 — Digital I/O / Analog input 1 |
| Chân 35 | RA2/AN2 — Digital I/O / Analog input 2 |
| Chân 36 | RA3/AN3 — Digital I/O / Analog input 3 |
| Chân 37 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| Chân 38 | RA5/AN4 — Digital I/O / Analog input 4 |
| Chân 39 | OSC1/CLKIN — Crystal oscillator input / external clock |
| Chân 40 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Chân 41 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output |
| Chân 42 | RC1/T1OSI — Digital I/O / Timer1 oscillator input |
| Chân 43 | RC2/CCP1 — Digital I/O / Enhanced CCP1 output |
| Chân 44 | RC3 — Digital I/O |
Ứng dụng tiêu biểu
PIC18LF4620T-I/PT phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, Portable Battery-Powered Instruments, Automotive Body Electronics, Smart Card and RFID Readers, Consumer Appliance Control Boards, Data Acquisition and Sensor Hubs.
Industrial Automation Controllers
The PIC18LF4620T-I/PT is well suited for industrial automation controllers requiring 64 KB flash for protocol stacks (Modbus RTU, CANopen) and 3968 bytes RAM for data buffering. Its 40 MHz CPU provides 10 MIPS throughput, enabling responsive control loops with sub-millisecond scan times. The 13-channel 10-bit ADC reads multiple sensor inputs (temperature, pressure, flow) without external multiplexers, while four timer modules drive PWM outputs for motor speed and valve control. The 36 I/O pins accommodate numerous digital inputs (limit switches, encoders) and outputs (relays, contactors) in a single chip. Industrial -40 °C to +85 °C temperature rating ensures reliable operation in factory-floor cabinets with elevated ambient temperatures.
Được đề xuất
Portable Battery-Powered Instruments
The LF voltage range (2.0 V to 5.5 V) of the PIC18LF4620T-I/PT makes it ideal for portable instruments powered by two AA cells or lithium battery packs. The nanoWatt technology provides multiple low-power modes including SLEEP (down to nanoamps) with 1 µs wake-up, enabling duty-cycled sensor measurement applications with battery life measured in years. The 10-bit ADC with 13 channels supports multiple sensor inputs (temperature, humidity, light) while four timer modules drive LCD multiplexing or low-power display updates. The 64 KB flash accommodates wireless protocol stacks (BLE, LoRa) when paired with external modules. Tape-and-reel packaging supports high-volume SMT assembly of portable products.
Được đề xuất
Automotive Body Electronics
The PIC18LF4620T-I/PT is suitable for non-safety automotive body electronics applications such as interior lighting controllers, seat control modules, mirror adjusters, and HVAC panel controls. The 40 MHz CPU provides responsive user-interface handling for capacitive touch buttons and rotary encoders, while the Enhanced CCP (ECCP) modules generate PWM outputs for LED dimming and motor control without external driver logic. The wide operating voltage range tolerates automotive 12 V system transients when paired with proper voltage regulation. While not AEC-Q100 qualified, the industrial -40 °C to +85 °C rating is acceptable for cabin-mounted body electronics modules.
Được đề xuất
Smart Card and RFID Readers
The PIC18LF4620T-I/PT provides sufficient flash (64 KB) and RAM (3968 bytes) to implement ISO 14443 contactless smart-card reader stacks or 125 kHz RFID reader protocols on a single MCU. Its hardware MSSP peripheral supports SPI and I2C communication with NFC frontends (PN532, CR95HF), while the EUSART handles wired smart-card interfaces (T=0/T=1 protocols) at standard baud rates. The hardware timer modules generate precise carrier frequencies for RFID modulation (13.56 MHz, 125 kHz) without CPU overhead, freeing the core for protocol handling. The wide operating voltage range supports both 3.3 V and 5 V smart-card interfaces on the same hardware design.
Được đề xuất
Consumer Appliance Control Boards
The PIC18LF4620T-I/PT delivers the right mix of peripherals and memory for consumer appliance control boards such as washing machines, microwave ovens, refrigerators, and small kitchen appliances. The 13-channel ADC reads multiple analog inputs (temperature sensors, water level, motor current) while the 36 I/O pins drive relay outputs, seven-segment displays, keypad inputs, and buzzer drivers. The Enhanced CCP modules generate PWM signals for variable-speed motor control (washing machine drum, fan motors) with dead-band control for inverter drives. The 64 KB flash accommodates graphical user interfaces with custom character sets, status icons, and menu structures in appliance-grade products.
Được đề xuất
Data Acquisition and Sensor Hubs
The PIC18LF4620T-I/PT is well suited as a multi-channel sensor hub that aggregates analog and digital sensor data and forwards it to a host processor via UART, SPI, or I2C. The 13-channel 10-bit ADC handles voltage, current, and temperature measurements in industrial monitoring systems, while the EUSART provides isolated RS-485 communication with Modbus RTU protocol support. The MSSP peripheral simultaneously drives an SPI OLED display showing real-time readings and accepts I2C commands from a higher-level controller. The 64 KB flash accommodates Modbus protocol stacks, calibration tables, and data logging routines for industrial-grade sensor hubs with local display capability.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF4620T-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC18LF4620-I/PT | PIC18F4620T-I/PT | PIC18LF4610T-I/PT | PIC18LF45K80T-I/PT | PIC18LF45K40T-I/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB |
| RAM | 3968 bytes | 3968 bytes | 3968 bytes | 3968 bytes | 2048 bytes | 2048 bytes |
| Operating Voltage Range | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 64 MHz | 64 MHz |
| ADC Channels | 13 channels, 10-bit | 13 channels, 10-bit | 13 channels, 10-bit | 13 channels, 10-bit | 11 channels, 12-bit | 35 channels, 12-bit |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Approximate Unit Price (qty 1000) | $11.50 | $11.30 (tray) | $10.50 | $12.00 | $8.50 | $5.00 |
Bảo phân biệt quan trọng
- Wider operating voltage range than the F variant (vsPIC18F4620T-I/PT)
- Larger RAM than newer K-series alternatives (vsPIC18LF45K80T-I/PT)
- Lower cost than specialty variant (vsPIC18LF4610T-I/PT)
Ghi chú thiết kế
Decouple VDD pins with a 100 nF ceramic capacitor placed within 3 mm of each VDD/VSS pair. The PIC18LF4620T-I/PT has multiple VDD/VSS pins (22/23 and 31/32 on the 44-pin TQFP) and each must be individually decoupled to handle switching transients. For battery-powered designs, add a 10 µF bulk capacitor at the supply rail to handle inrush when the ADC reference settles after wake-up from sleep mode. Do not exceed the absolute maximum rating of 7.5 V on VDD to prevent permanent damage.
Place the crystal oscillator (or ceramic resonator) within 5 mm of the OSC1/OSC2 pins (pins 39 and 40) to minimize parasitic capacitance. Use a ground guard ring around the oscillator traces and keep digital signal traces at least 3 mm away. For high-speed SPI or EUSART communication above 1 Mbps, place series termination resistors (33-100 Ω) at the driver output pins to control reflections. Route analog ADC inputs (RA0-RA5, RB0-RB3, RE0-RE2) as far as possible from digital switching signals to minimize coupled noise.
Ensure MCLR pin (pin 1 in 44-pin TQFP) has a proper pull-up resistor (typically 10 kΩ) to VDD. Without it, the device will not start reliably and may enter programming mode unintentionally. Configure the configuration bits (CONFIG1H through CONFIG5L) correctly before first programming to prevent the device from locking out future ICSP updates. The LF variant supports 2.0 V to 5.5 V but the F variant requires 4.2 V minimum - do not substitute F for LF in 3.3 V designs. Finally, do not exceed 100,000 erase/write cycles on Flash program memory or 1,000,000 cycles on EEPROM, as endurance degrades rapidly beyond these limits.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Industrial temperature range -40 °C to +85 °C, not AEC-Q100 qualified for automotive safety applications. Lead-free and halogen-free packaging per Microchip environmental compliance documentation.