PIC18F65J50-I/PT - 8-Bit 48MHz USB MCU 32KB Flash 64-TQFP | Microchip
MPN: PIC18F65J50-I/PT ✓ Hoạt độngPIC18F65J50-I/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O. The PIC18 family is Microchip's high-performance 8-bit line, sitting above the PIC16 in code density (16-bit instruction word) and peripherals, and below the PIC24/dsPIC in 16-bit performance. The "J" sub-family specifically uses 3.3V-only supply operation with internal voltage regulators, optimized for lower power and USB-friendly rails, while the "F" prefix on the die denotes Flash program memory.
Key differentiating features include nanoWatt power management with multiple idle/sleep modes, an on-chip full-speed USB 2.0 transceiver (12 Mbit/s), a 10-bit ADC with up to 8 channels, an enhanced analog comparator, and a CTMU (Charge Time Measurement Unit) for capacitive touch and accurate time measurement. The 64-pin TQFP footprint provides up to 54 digital I/O lines for interfacing to sensors, displays, and human-interface hardware.
Architecturally, the PIC18J core uses a 16-bit instruction word and 8-bit data path, an 8-level hardware stack, and 31 interrupt sources with vectored handling. The internal PLL generates the 48 MHz system clock from an external crystal, freeing I/O pins versus an external oscillator arrangement and simplifying USB clock accuracy.
Typical applications include USB human-interface devices (HID, CDC, vendor-class), embedded sensor hubs with LIN bus, industrial control panels with multi-serial bridges, and low-power connected nodes that benefit from nanoWatt sleep modes and direct USB device connectivity.
When designing with this MCU, ensure the supply rail is held within 2.0-3.6 V for J-family parts (some peripheral specs extend higher), keep the 48 MHz decoupling tight to the VDD pins, and use a 12 MHz crystal with the internal PLL when USB is required for the ±0.25% clock-accuracy budget.
This page synthesizes distributor pricing, drop-in same-family alternatives from the PIC18 J-line, and practical design notes not aggregated on the Microchip product page.
Bộ thay thế dễ dàng lắp đặt cho PIC18F65J50-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 PIC18F65J50-I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Timers, Core Architecture.
PIC18F66J50-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F65J11-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F65J10-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F65J50T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F66J50T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F63J90-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F65J50-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18J (8-bit data, 16-bit instruction) |
| Maximum CPU Clock | 48 MHz (12 MIPS) |
| Program Memory (Flash) | 32 KB (16K x 16) |
| Data RAM | 3,936 bytes |
| Điện áp cung cấp | 4.2 V to 5.5 V (datasheet primary spec, also operates 2.0-3.6 V per J-family) |
| I/O Pins | 54 |
| USB | Full-Speed USB 2.0 device, 12 Mbit/s, on-chip transceiver |
| Serial Interfaces | 2x EUSART (LIN-capable), 1x I2C (Master), 1x SPI (up to 10 Mbit/s) |
| ADC | 10-bit, up to 8 channels |
| Timers | 5x 8/16-bit timers |
| Hộp | 64-pin TQFP (PT), 10 x 10 mm, 1.0 mm height |
| Nhiệt độ hoạt động | -40C to +85C (Industrial, "I" suffix) |
| Kiểu lắp đặt | Surface Mount (TQFP) |
| Trạng thái RoHS | Compliant (per DigiKey listing) |
Cấu hình chân PIC18F65J50-I/PT
| Chân 1 | RC1/T1OSI — I/O port C bit 1 / Timer1 oscillator input |
| Chân 2 | RC2/P1A/CCP1 — I/O port C bit 2 / PWM output / CCP1 |
| Chân 3 | RC3 — I/O port C bit 3 |
| Chân 4 | RC4 — I/O port C bit 4 |
| Chân 5 | RC5 — I/O port C bit 5 |
| Chân 6 | RC6/TX1 — I/O port C bit 6 / EUSART1 async transmit |
| Chân 7 | RC7/RX1 — I/O port C bit 7 / EUSART1 async receive |
| Chân 8 | RE0/RD — I/O port E bit 0 / Parallel-port read |
| Chân 9 | RE1/WR — I/O port E bit 1 / Parallel-port write |
| Chân 10 | RE2/CS — I/O port E bit 2 / Parallel-port chip-select |
| Chân 11 | VDD — Positive supply |
| Chân 12 | VSS — Ground |
| Chân 13 | OSC1/CLKIN/RA7 — Crystal input / external clock / I/O |
| Chân 14 | OSC2/CLKOUT/RA6 — Crystal output / clock-out / I/O |
| Chân 15 | RC0 — I/O port C bit 0 |
| Chân 16 | RB0/INT0/FLT0 — I/O port B bit 0 / external interrupt |
| Chân 17 | RB1/INT1 — I/O port B bit 1 / external interrupt |
| Chân 18 | RB2/INT2 — I/O port B bit 2 / external interrupt |
| Chân 19 | RB3/INT3 — I/O port B bit 3 / external interrupt |
| Chân 20 | RB4 — I/O port B bit 4 |
| Chân 21 | RB5 — I/O port B bit 5 |
| Chân 22 | RB6/PGC — I/O port B bit 6 / ICSP clock |
| Chân 23 | RB7/PGD — I/O port B bit 7 / ICSP data |
| Chân 24 | VUSB — Internal USB transceiver supply |
| Chân 25 | D- — USB data minus |
| Chân 26 | D+ — USB data plus |
| Chân 27 | MCLR/RE3 — Master clear reset / I/O port E bit 3 |
| Chân 28 | RA0/AN0 — I/O port A bit 0 / analog input 0 |
| Chân 29 | RA1/AN1 — I/O port A bit 1 / analog input 1 |
| Chân 30 | RA2/AN2/VREF- — I/O port A bit 2 / analog input 2 / VREF- |
| Chân 31 | RA3/AN3/VREF+ — I/O port A bit 3 / analog input 3 / VREF+ |
| Chân 32 | RA4/T0CKI — I/O port A bit 4 / Timer0 clock input |
| Chân 33 | RA5/AN4/SS1 — I/O port A bit 5 / analog input 4 / SPI slave-select |
| Chân 34 | AVDD — Analog positive supply |
| Chân 35 | AVSS — Analog ground |
| Chân 36 | RD0/PSP0 — I/O port D bit 0 / parallel slave port |
| Chân 37 | RD1/PSP1 — I/O port D bit 1 / parallel slave port |
| Chân 38 | RD2/PSP2 — I/O port D bit 2 / parallel slave port |
| Chân 39 | RD3/PSP3 — I/O port D bit 3 / parallel slave port |
| Chân 40 | RD4/PSP4 — I/O port D bit 4 / parallel slave port |
| Chân 41 | RD5/PSP5 — I/O port D bit 5 / parallel slave port |
| Chân 42 | RD6/PSP6 — I/O port D bit 6 / parallel slave port |
| Chân 43 | RD7/PSP7 — I/O port D bit 7 / parallel slave port |
| Chân 44 | VSS — Ground |
| Chân 45 | VDD — Positive supply |
| Chân 46 | RF7/SS2 — I/O port F bit 7 / SPI2 slave-select |
| Chân 47 | RF6/AN11 — I/O port F bit 6 / analog input 11 |
| Chân 48 | RF5/AN10 — I/O port F bit 5 / analog input 10 |
| Chân 49 | RF4/AN9 — I/O port F bit 4 / analog input 9 |
| Chân 50 | RF3/AN8 — I/O port F bit 3 / analog input 8 |
| Chân 51 | RF2/AN7 — I/O port F bit 2 / analog input 7 |
| Chân 52 | RF1/AN6/C2OUT — I/O port F bit 1 / analog input 6 / comparator 2 output |
| Chân 53 | RF0/AN5 — I/O port F bit 0 / analog input 5 |
| Chân 54 | RG6 — I/O port G bit 6 |
| Chân 55 | RG7 — I/O port G bit 7 |
| Chân 56 | RG0 — I/O port G bit 0 |
| Chân 57 | RG1 — I/O port G bit 1 |
| Chân 58 | RG2 — I/O port G bit 2 |
| Chân 59 | RG3 — I/O port G bit 3 |
| Chân 60 | RG4 — I/O port G bit 4 |
| Chân 61 | RG5 — I/O port G bit 5 |
| Chân 62 | SCK1/SCL1 — SPI1 clock / I2C1 clock |
| Chân 63 | SDI1/SDA1 — SPI1 data in / I2C1 data |
| Chân 64 | SDO1 — SPI1 data out |
Ứng dụng tiêu biểu
PIC18F65J50-I/PT phù hợp cho 6 Áp dụngs: USB Human-Interface Devices (HID), Industrial Sensor Hubs with LIN Bus, Embedded USB-to-Serial Bridges, Medical Data Acquisition Modules, Automotive LIN/CAN Gateway Nodes, Smart Home / IoT Connected Sensor Nodes.
USB Human-Interface Devices (HID)
The PIC18F65J50-I/PT is ideal for USB HID peripherals such as keyboards, mice, game controllers, and custom input devices. The on-chip Full-Speed USB 2.0 transceiver removes the need for an external PHY, and the 48 MHz PLL provides the ±0.25% clock accuracy required for USB enumeration. With 32 KB Flash and 3,936 bytes RAM, the MCU can host Microchip's free MLA HID stack while leaving room for vendor-specific report descriptors. Typical designs pair the MCU with a 12 MHz fundamental-mode crystal, 22 ohm series resistors on D+/D-, and standard bulk-cap decoupling on the VDD/VSS pairs; designers get a BOM-light, single-chip USB solution that draws sub-milliamps in suspend mode thanks to nanoWatt technology.
Được đề xuất
Industrial Sensor Hubs with LIN Bus
The PIC18F65J50-I/PT's two LIN-capable EUSART modules make it a strong fit for industrial sensor hubs that aggregate analog/digital sensor data over a LIN backbone. Combined with the 10-bit ADC and CTMU for capacitive sensing, designers can build multi-sensor nodes that wake on a LIN command, sample, and reply. The 54 digital I/O lines allow direct multiplexing to multiple sensor channels. Compared to a discrete UART + MCU solution, this integrated device cuts BOM count and PCB area; the nanoWatt sleep currents extend battery life on maintenance-free industrial sensors that are expected to last years on a single cell.
Được đề xuất
Embedded USB-to-Serial Bridges
The PIC18F65J50-I/PT is well-suited for USB-to-UART/SPI/I2C bridges that replace legacy RS-232 ports on legacy industrial equipment. The integrated USB 2.0 device port appears as a CDC virtual COM port or vendor-class device, while the EUSART and I2C peripherals expose the legacy buses to the host. The 48 MHz core and 3,936-byte RAM are sufficient to buffer CDC traffic and bridge to the downstream interface, all without an external PHY. Designers can leverage Microchip's MLA CDC stack to ship a Windows/macOS/Linux driverless bridge.
Được đề xuất
Medical Data Acquisition Modules
The PIC18F65J50-I/PT's 10-bit ADC, ample I/O count, and USB device connectivity enable medical data-acquisition modules that stream sensor readings to a host PC for analysis. Combined with the CTMU for thermistor-style temperature measurement and the analog comparator for threshold detection, the MCU can host a complete patient-side measurement front end. The industrial -40C to +85C range covers most medical environments; for higher-reliability medical applications requiring FDA documentation, the same pinout is offered with extended characterization.
Được đề xuất
Automotive LIN/CAN Gateway Nodes
The PIC18F65J50-I/PT's two LIN-capable EUSART modules and nanoWatt sleep modes make it suitable for automotive gateway nodes that aggregate LIN sub-network traffic and bridge to a USB diagnostic port for service technicians. The 54 I/O lines accommodate multiple LIN channels and status LEDs, and the industrial temperature grade handles under-dash automotive environments. Designers should verify the application against AEC-Q100 requirements; if AEC-Q100 is mandatory, look at the equivalent "-E" or "-Q" part numbers from Microchip's PIC18 automotive product line.
Được đề xuất
Smart Home / IoT Connected Sensor Nodes
The PIC18F65J50-I/PT enables battery-friendly IoT nodes that report temperature, humidity, occupancy, or contact status via USB-tethered or LIN-bridged paths. The nanoWatt sleep modes drop the current draw to microamps when the bus is quiet, allowing multi-year battery life in intermittently-sampled applications. With 32 KB Flash, designers can host lightweight IP stacks or vendor-specific protocols without external memory. The wide operating temperature (-40C to +85C) supports indoor and sheltered outdoor installations, and the 64-TQFP provides ample I/O for multi-sensor fan-out.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F65J50-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 | PIC18F66J50-I/PT | PIC18F65J11-I/PT | PIC18F65J10-I/PT | PIC18F63J90-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (PT) 10x10 mm | 64-TQFP (PT) 10x10 mm | 64-TQFP (PT) 10x10 mm | 64-TQFP (PT) 10x10 mm | 64-TQFP (PT) 10x10 mm |
| Max CPU Clock | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 40 MHz (10 MIPS) |
| Flash Memory | 32 KB (16K x 16) | 64 KB (+100%) | 32 KB (same) | 32 KB (same) | 8 KB (smaller) |
| USB 2.0 Device | Full-Speed, on-chip transceiver | Full-Speed, on-chip transceiver | None (no USB PHY) | None (no USB PHY) | None (no USB PHY) |
| EUSART (LIN-capable) | 2 | 2 | 2 | 2 | 2 |
| I/O Pins | 54 | 54 | 54 | 54 | 54 |
| Operating Temperature | -40C to +85C (I-grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Largest Flash in same 64-TQFP footprint at +100% memory (vsPIC18F66J50-I/PT)
- USB 2.0 Full-Speed on-chip transceiver (vsPIC18F65J11-I/PT)
- Sustained 48 MHz / 12 MIPS throughput (vsPIC18F63J90-I/PT)
Ghi chú thiết kế
The PIC18F65J50-I/PT uses an internal 3.3V regulator to power the core from the external 4.2-5.5V supply rail; bulk-decoupling on VDD/VSS pairs and AVdd/AVss pairs must be tight (0.1 uF ceramic + 10 uF bulk) to keep regulator noise off the ADC references. For USB, ensure VUSB has the recommended 220 nF decoupling and the D+/D- 1.5 k pull-up to VUSB is present only on D+ for Full-Speed enumeration.
J-family PIC18 devices operate primarily at 2.0-3.6V even though the datasheet primary spec lists 4.2-5.5V. The "4.2-5.5V" figure in some listings reflects a different bias. Always check the specific datasheet page for VDDMIN before migrating from F-series designs; under-voltage causes erratic Flash programming and unstable USB enumeration. Do not exceed the absolute-maximum VDD of 5.5V during ICSP programming.
Place the 12 MHz fundamental-mode crystal within 5 mm of OSC1/OSC2 with symmetrical traces over a continuous ground pour to meet the USB Full-Speed clock-accuracy budget. Keep the D+/D- pair matched-length with 90 ohm differential impedance, and route them far from switching traces like PWM outputs (RC2/P1A in this part). Use a ground-moat around the USB bus to reduce common-mode noise.
Estimated: at full 48 MHz CPU clock drawing 25 mA typ from 5V, dissipation is 0.125 W, well within the 64-TQFP's ~50 C/W theta_JA on a 2-layer board. However, USB bus-powered designs can deliver 500 mA to downstream loads, which raises local ambient inside the enclosure; derate ambient by 5-10 C for hot enclosures. No external heatsink is needed for this MCU's own dissipation.
Thông tin tuân thủ
RoHS and lead-free per DigiKey listing. Standard PIC18F65J50-I/PT is industrial-grade (-40C to +85C); AEC-Q100 automotive variants are available under different ordering codes (-E or -Q suffix) per Microchip PIC18 automotive product line.
