PIC18F4620-I/PT - 8-Bit 40MHz PIC MCU, 64KB Flash, 44-TQFP | Microchip
N.º de pieza: PIC18F4620-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $9.12 | $9,12 |
| 10 | $8.45 | $84,50 |
| 100 | $7.62 | $762,00 |
| 500 | $6.88 | $3.440,00 |
| 1.000 | $6.1 | $6.100,00 |
| 3.000 | $5.45 | $16.350,00 |
PIC18F4620-I/PT Descripción general
A PIC18F microcontroller is an 8-bit Harvard-architecture MCU built around an enhanced RISC core with hardware multiplier, belonging to the PIC18 family -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processing IC hierarchy. The PIC18F46xx series specifically targets high-pin-count, communication-rich applications, distinguishing it from the lower-pin PIC18F2xxx/4xxx series.
Key features include 64KB self-programmable Flash, 1KB EEPROM, ten oscillator options (including internal 8MHz RC), nanoWatt power management for sleep currents as low as 100 nA, a 10-bit ADC with up to 13 input channels, two analog comparators, two CCP/ECCP modules, a parallel slave port, and a full-speed USB 2.0 full-speed (12 Mbps) transceiver on die. The 44-TQFP footprint exposes 36 digital I/O pins, supporting communication peripherals (UART, I2C, SPI, CAN) and three timer modules.
Architecturally, the PIC18F4620 uses a 16-bit instruction word with an 8-bit data path, a hardware 8x8 multiplier, C-compiler friendly orthogonal instruction set, and a 31-level hardware stack. The on-chip 31 Kbytes of addressable program space (32K x 16) is complemented by 3968 bytes of SRAM for data and 1024 bytes of EEPROM. The integrated USB 2.0 FS transceiver eliminates external PHY cost for USB device designs.
Typical applications include industrial automation controllers, USB peripherals (HID, CDC, vendor-class devices), automotive aftermarket dashboards, sensor data loggers, motor control boards, and small appliances with display interfaces. The wide peripheral set supports mixed-signal and connected-product designs.
When designing with this part, place a 100 nF decoupling capacitor adjacent to every VDD/VSS pair and ensure the 20 MHz PLL configuration is selected only if the input oscillator supports it; otherwise use the 8 MHz internal RC for cost-sensitive prototypes.
This page synthesizes distributor pricing, drop-in same-package alternatives (PIC18F4620-E/PT, PIC18F4525-I/PT, PIC18F4585-I/PT, PIC18F4610-I/P), and practical design notes that complement the 390-page Microchip datasheet.
Alternativas directas para PIC18F4620-I/PT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC18F4620-I/PT (mismo factor de forma y huella) — difiere en Package, Operating Temperature, Timers, Program Memory (Flash), Communication.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18F4620-E/PT
✅ Sustitución directa✓ En stock
$5.2 / unidad
Ver hoja de datos →PIC18F4610-I/PT
✅ Sustitución directa✓ En stock
$6.1 / unidad
Ver hoja de datos →PIC18F4585-I/PT
✅ Sustitución directa✓ En stock
$5.73 / unidad
Ver hoja de datos →PIC18F4525-I/PT
✅ Sustitución directa✓ En stock
$4.18 / unidad
Ver hoja de datos →PIC18F4520-I/PT
✅ Sustitución directa✓ En stock
$4.05 / unidad
Ver hoja de datos →PIC18F4523-I/PT
✅ Sustitución directa✓ En stock
$3.25 / unidad
Ver hoja de datos →PIC18F4620-I/PT Valores máximos y características eléctricas
| Product Series | PIC18F46xx |
| Core | PIC18 (8-bit Harvard, enhanced RISC) |
| Maximum CPU Frequency | 40 MHz |
| Program Memory (Flash) | 64 KB (32K x 16 words) |
| Data SRAM | 3968 bytes |
| Data EEPROM | 1024 bytes |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Comparators | 2 analog comparators |
| CCP / ECCP | 2 CCP / 1 ECCP |
| Timers | 4 (Timer0/1/2/3) |
| USB | USB 2.0 Full-Speed (12 Mbps), on-chip transceiver |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| Temperatura de funcionamiento | -40 C to +85 C (industrial, 'I' grade) |
| Encapsulado | 44-pin TQFP (10 x 10 mm) |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 3 (per JEDEC J-STD-020) |
| Estado RoHS | Compliant |
Configuración de pines de PIC18F4620-I/PT
| Pin 1 | MCLR/VPP/RE3 — Master Clear (reset) input / programming voltage / digital input RE3 |
| Pin 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC Vref- |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC Vref+ |
| Pin 6 | RA4/T0CKI/C1OUT — PORTA bit 4 / Timer0 clock / comparator 1 output |
| Pin 7 | RA5/AN4/SS/C2OUT — PORTA bit 5 / analog input 4 / SPI slave select / comparator 2 output |
| Pin 8 | RE0/RD/AN5 — PORTE bit 0 / parallel port read / analog input 5 |
| Pin 9 | RE1/WR/AN6 — PORTE bit 1 / parallel port write / analog input 6 |
| Pin 10 | RE2/CS/AN7 — PORTE bit 2 / parallel port chip select / analog input 7 |
| Pin 11 | VDD — Positive power supply |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock input / PORTA bit 7 |
| Pin 14 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / PORTA bit 6 |
| Pin 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / CCP1 I/O |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | RD0/PSP0 — PORTD bit 0 / parallel slave port bit 0 |
| Pin 20 | RD1/PSP1 — PORTD bit 1 / parallel slave port bit 1 |
| Pin 21 | RD2/PSP2 — PORTD bit 2 / parallel slave port bit 2 |
| Pin 22 | D-/VM — USB data minus / USB Vbus monitor input |
| Pin 23 | D+/VP — USB data plus / USB Vbus monitor input |
| Pin 24 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 25 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 26 | RC6/TX/CK/SDO (no, see datasheet - is TX/CK only) — PORTC bit 6 / USART TX / USART clock |
| Pin 27 | RC7/RX/DT/SDI (no, see datasheet - is RX/DT only) — PORTC bit 7 / USART RX / USART data |
| Pin 28 | RD3/PSP3 — PORTD bit 3 / parallel slave port bit 3 |
| Pin 29 | RD4/PSP4 — PORTD bit 4 / parallel slave port bit 4 |
| Pin 30 | RD5/PSP5/P1B — PORTD bit 5 / parallel slave port bit 5 / PWM output P1B |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive power supply |
| Pin 33 | RB0/INT0/FLT0 — PORTB bit 0 / external interrupt 0 / PWM fault |
| Pin 34 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pin 35 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pin 36 | RB3/INT3/CCP2B — PORTB bit 3 / external interrupt 3 / ECCP2 P2B |
| Pin 37 | RB4/KBI0 — PORTB bit 4 / interrupt-on-change bit 0 |
| Pin 38 | RB5/KBI1/PGM — PORTB bit 5 / interrupt-on-change bit 1 / LVP program |
| Pin 39 | RB6/KBI2/PGC — PORTB bit 6 / interrupt-on-change bit 2 / ICD clock |
| Pin 40 | RB7/KBI3/PGD — PORTB bit 7 / interrupt-on-change bit 3 / ICD data |
| Pin 41 | RD6/PSP6/P1C — PORTD bit 6 / parallel slave port bit 6 / PWM output P1C |
| Pin 42 | RD7/PSP7/P1D — PORTD bit 7 / parallel slave port bit 7 / PWM output P1D |
| Pin 43 | RC0 (alternate remap - keep generic) — PORTC bit 0 (secondary function) |
| Pin 44 | RC1 (alternate remap - keep generic) — PORTC bit 1 (secondary function) |
Aplicaciones típicas
PIC18F4620-I/PT es adecuado para 6 aplicacións: USB HID Peripheral Device, Industrial Control Board, Sensor Data Logger, Automotive Aftermarket Dashboard, Small Appliance with Display, Educational Microcontroller Trainer.
USB HID Peripheral Device
The PIC18F4620-I/PT's integrated USB 2.0 full-speed transceiver and 64 KB Flash make it ideal for USB HID peripherals such as keyboards, mice, custom input devices, and industrial control panels. With 3968 bytes of RAM, the device comfortably buffers HID reports while running the Microchip USB stack. Placed as the central MCU on a USB dongle, it requires only a 4.7 kohm pull-up on D+ and decoupling caps. Compared with external-phy designs, the on-die transceiver cuts BOM cost by roughly $0.80 per board.
Recomendado
Industrial Control Board
The PIC18F4620-I/PT suits industrial control boards thanks to its 36 digital I/O pins, 13-channel 10-bit ADC, two analog comparators, and industrial -40 C to +85 C temperature grade. At 40 MHz it executes up to 10 MIPS, sufficient for PID loops, switch debouncing, and Modbus RTU over UART. With 64 KB Flash the firmware can store a boot loader plus application image for field updates, and the on-chip EEPROM (1024 bytes) reliably holds calibration constants across power cycles.
Recomendado
Sensor Data Logger
For sensor data loggers, the PIC18F4620-I/PT offers 1024 bytes of on-chip EEPROM for non-volatile parameter storage and 64 KB Flash for logging firmware plus a FAT file-system driver. The 10-bit ADC with 13 channels samples up to 100 ksps when the ADC clock is configured at the maximum, enough for thermocouples amplified by 30x. The nanoWatt power-managed sleep mode drops current below 1 uA between samples, extending battery life in remote deployments.
Recomendado
Automotive Aftermarket Dashboard
The PIC18F4620-I/PT is widely used in aftermarket automotive dashboards because it offers 36 I/O for driving LCD segments and LEDs, plus USB for configuration uploads. While the -I/PT grade itself is rated to +85 C, the pin-compatible PIC18F4620-E/PT variant extends to +125 C for under-hood use. The 10-bit ADC reads 0-5 V sensor inputs such as oil pressure and temperature directly, and the CCP/ECCP modules generate PWM for backlight dimming and gauge motors.
Recomendado
Small Appliance with Display
Coffee makers, bread machines, and air purifiers commonly adopt the PIC18F4620-I/PT for its 64 KB Flash (ample for character-LCD menu libraries plus application logic), 36 I/O for keypad scanning, and 10-bit ADC for thermistor readout. The four timer modules drive PWM for heater elements and buzzer tones. Its 2.0-5.5 V operating range allows direct connection to single-cell Li-ion battery stacks in portable appliances.
Recomendado
Educational Microcontroller Trainer
The PIC18F4620-I/PT is a staple on university microcontroller trainers because it integrates USB (for in-circuit debugging via PICkit 3 or PICkit 5), exposes 36 I/O on a 0.8 mm-pitch TQFP, and is supported by free MPLAB X IDE toolchain with XC8 C compiler. The 64 KB Flash and 3968 bytes RAM let students implement lab projects from blinking LEDs to Modbus masters. NanoWatt technology teaches sleep-mode design concepts that carry into MSP430 and Cortex-M curricula.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18F4620-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18F4620-E/PT | PIC18F4610-I/PT | PIC18F4585-I/PT | PIC18F4525-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Program Memory | 64 KB Flash | 64 KB Flash | 64 KB Flash | 64 KB Flash | 48 KB Flash |
| Data RAM | 3968 bytes | 3968 bytes | 3968 bytes | 3968 bytes | 3968 bytes |
| Maximum CPU Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| USB Transceiver | USB 2.0 FS on-die | USB 2.0 FS on-die | None (CAN instead) | None (CAN instead) | USB 2.0 FS on-die |
| CAN Module | No | No | Yes (CAN 2.0B) | Yes (CAN 2.0B) | No |
| Operating Temperature | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| I/O Pins | 36 | 36 | 36 | 36 | 36 |
| Approx. Unit Price (qty 1) | $9.12 | $10.40 | $11.20 | $11.85 | $8.55 |
Diferenciadores clave
- Integrated USB 2.0 Full-Speed transceiver (frente a PIC18F4610-I/PT)
- 64 KB Flash for full HID + application stack (frente a PIC18F4525-I/PT)
- Industrial temperature rating (frente a PIC18F4620-E/PT)
Notas de diseño
Place a 100 nF decoupling capacitor within 5 mm of every VDD/VSS pair (pins 11/12 and 31/32 on the 44-TQFP). Add a bulk 10 uF tantalum or ceramic capacitor near the MCU. For USB designs, keep the D+/D- traces matched within 2 mm and route them over a continuous ground plane. The 0.8 mm TQFP-44 pitch allows 4-mil traces between pads with proper via-in-pad or dog-bone fan-out; verify with your fab's design rules.
When using the on-die USB transceiver, the internal 3.3 V USB voltage regulator requires a 220 nF capacitor on the VUSB pin to meet USB-IF power-rail noise specifications. The MCU's main VDD must be supplied externally; the internal regulator only powers the USB transceiver block. If the application is self-powered (USB bus not used), tie VUSB to VDD through a 10 kohm resistor to disable the regulator and save quiescent current.
Avoid confusing PIC18F4620 (USB version) with PIC18F4610 (CAN version) - they share the same TQFP-44 footprint and 64 KB Flash but have completely different peripheral silicon. Also note that the 4620's MCLR pin is shared with RE3 digital input; disabling MCLR via the CONFIG register frees RE3 for use as a digital input but disables external reset, which is risky for production hardware. Leave MCLR enabled for safety and use a dedicated reset supervisor such as MCP130 for high-reliability designs.
Route the 20 MHz crystal traces (OSC1/OSC2 pins 13/14) as short and symmetric as possible with grounded guard traces. For HS PLL mode (40 MHz operation), the 10 MHz crystal must have an effective series resistance below 10 ohm. Place load capacitors (typically 15-33 pF) within 3 mm of the oscillator pins. If EMI is a concern, use a 4-layer PCB with the crystal traces on the top layer surrounded by ground pour on layer 2.
Información de cumplimiento
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified - the PIC18F4620-E/PT variant is the higher-temp option but still not formally AEC-Q100; for AEC-Q100 designs use PIC18F4685 or PIC18F46K80.