PIC18F67J50T-I/PT - 8-Bit 48MHz USB MCU 128KB Flash TQFP-64
MPN: PIC18F67J50T-I/PT ✓ Hoạt độngPIC18F67J50T-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control, low power, and rich peripheral integration. Within the broader taxonomy, 8-bit MCUs sit below 16-bit and 32-bit MCUs in raw compute performance but above discrete logic in functional density. PIC18 devices extend Microchip's baseline PIC16 architecture with a 16-bit instruction word, linear data memory, and prioritized interrupts, making them suitable for USB-connected embedded designs that also need precision timing, ADC, and serial communication.
Key features include a built-in Full-Speed (12 Mbit/s) USB 2.0 device/host/OTG transceiver, four serial ports (USB, I2C, SPI up to 10 Mbit/s, and LIN-capable EUSART), a 10-bit ADC with up to 16 channels, five 16-bit timer/counters, and nanoWatt power management with multiple idle and sleep modes. The 64-pin TQFP exposes 49 digital I/O pins plus dedicated analog, oscillator, and programming/debug pins for ICSP.
Architecturally, the PIC18F67J50 uses a Harvard-style 16-bit instruction bus with an 8-bit data path, single-cycle ALU operations, and a hardware multiplier. Its 128KB flash is organized as 64K x 16 words, while the data EEPROM and SRAM sit on independent buses for deterministic interrupt latency. The integrated USB SIE eliminates the need for an external PHY, saving both board area and BOM cost.
Typical applications include USB-to-UART bridges, HID peripherals (keyboards, mice, game controllers), industrial sensor data loggers, low-power portable instrumentation, automotive body/comfort LIN nodes, and embedded web servers. The combination of USB connectivity and nanoWatt sleep modes makes the part particularly attractive for always-on USB devices that must draw negligible current when the host is suspended.
When designing with this MCU, allocate the analog Vcap pin to a low-ESR 4.7uF to 10uF decoupling capacitor and tie the ENVREG pin to VDD when the internal 2.5V regulator is used. For USB applications, ensure the D+/D- trace impedance is 90 ohm differential and that the Vbus sense pin is connected for proper attach detection.
This page consolidates distributor pricing, drop-in same-package alternatives, and application design guidance drawn from Microchip's PIC18F87J50 family datasheet, helping engineers select the right variant and avoid common integration pitfalls not covered in the standalone datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18F67J50T-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 PIC18F67J50T-I/PT (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, Timers, Program Memory (Flash).
PIC18F67J10T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F66J50T-I/PT
✅ Drop-InLiên 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 →PIC18F66J55-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F65K80T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F67J50T-I/PT Tỷ lệ tối đa & tính chất điện
| Core | PIC18 8-bit RISC |
| Instruction Set | PIC18 (16-bit instruction word, 8-bit data path) |
| Program Memory (Flash) | 128 KB (64K x 16 words) |
| Data SRAM | 3,904 bytes |
| Maximum CPU Clock | 48 MHz |
| MIPS (Dhrystone) | 12 MIPS |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| USB Controller | USB 2.0 Full-Speed (12 Mbit/s), device/host/OTG SIE on-chip |
| Serial Interfaces | USB, I2C (MSSP), SPI (up to 10 Mbit/s), EUSART (LIN-capable) |
| ADC | 10-bit, up to 16 channels |
| Timers | 5 x 16-bit timer/counter |
| Digital I/O Pins | 49 |
| Hộp | 64-pin TQFP (10x10 mm), pitch 0.5 mm |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
| Programming/Debug | ICSP via PGC/PGD, supports MPLAB tools |
Cấu hình chân PIC18F67J50T-I/PT
| Chân 1 | RC0 — Digital I/O / analog input AN12 |
| Chân 2 | RC1 — Digital I/O / analog input AN13 / CCP2 |
| Chân 3 | RC2 — Digital I/O / analog input AN14 |
| Chân 4 | RC3 — Digital I/O / analog input AN15 / SCL |
| Chân 5 | RC4 — Digital I/O / SDA |
| Chân 6 | RC5 — Digital I/O / D- |
| Chân 7 | RC6 — Digital I/O / TX/CK |
| Chân 8 | RC7 — Digital I/O / RX/DT |
| Chân 9 | RD0 — Digital I/O |
| Chân 10 | RD1 — Digital I/O |
| Chân 11 | RD2 — Digital I/O |
| Chân 12 | RD3 — Digital I/O |
| Chân 13 | RD4 — Digital I/O |
| Chân 14 | RD5 — Digital I/O |
| Chân 15 | RD6 — Digital I/O |
| Chân 16 | RD7 — Digital I/O |
| Chân 17 | VSS — Ground reference |
| Chân 18 | VDD — Positive supply voltage (2.0V-3.6V) |
| Chân 19 | RE0 — Digital I/O / analog input AN5 |
| Chân 20 | RE1 — Digital I/O / analog input AN6 |
| Chân 21 | RE2 — Digital I/O / analog input AN7 |
| Chân 22 | RE3 — Digital I/O / analog input AN8 |
| Chân 23 | RE4 — Digital I/O / analog input AN9 |
| Chân 24 | RE5 — Digital I/O / analog input AN10 |
| Chân 25 | RE6 — Digital I/O / analog input AN11 |
| Chân 26 | RE7 — Digital I/O / CCP2 |
| Chân 27 | RA0 — Digital I/O / analog input AN0 |
| Chân 28 | RA1 — Digital I/O / analog input AN1 |
| Chân 29 | RA2 — Digital I/O / analog input AN2 |
| Chân 30 | RA3 — Digital I/O / analog input AN3 / Vref+ |
| Chân 31 | RA4 — Digital I/O / analog input AN4 |
| Chân 32 | RA5 — Digital I/O / analog input AN5 |
| Chân 33 | OSC1 — Crystal oscillator input / external clock |
| Chân 34 | OSC2 — Crystal oscillator output |
| Chân 35 | VSS — Ground reference |
| Chân 36 | VDD — Positive supply voltage (2.0V-3.6V) |
| Chân 37 | RB0 — Digital I/O / analog input AN12 |
| Chân 38 | RB1 — Digital I/O / analog input AN10 |
| Chân 39 | RB2 — Digital I/O / analog input AN8 |
| Chân 40 | RB3 — Digital I/O / analog input AN9 |
| Chân 41 | RB4 — Digital I/O / analog input AN11 |
| Chân 42 | RB5 — Digital I/O / analog input AN13 / CCP3 |
| Chân 43 | RB6 — Digital I/O / PGC (ICSP clock) |
| Chân 44 | RB7 — Digital I/O / PGD (ICSP data) |
| Chân 45 | VUSB — USB internal transceiver supply (3.3V regulated) |
| Chân 46 | VBUS — USB Vbus sense input (5V tolerant) |
| Chân 47 | D+ — USB D+ data line |
| Chân 48 | D- — USB D- data line |
| Chân 49 | RF0 — Digital I/O |
| Chân 50 | RF1 — Digital I/O |
| Chân 51 | RF2 — Digital I/O |
| Chân 52 | RF3 — Digital I/O |
| Chân 53 | RF4 — Digital I/O |
| Chân 54 | RF5 — Digital I/O |
| Chân 55 | RF6 — Digital I/O |
| Chân 56 | RF7 — Digital I/O |
| Chân 57 | RG0 — Digital I/O / CCP4 |
| Chân 58 | RG1 — Digital I/O / CCP5 |
| Chân 59 | RG2 — Digital I/O |
| Chân 60 | RG3 — Digital I/O |
| Chân 61 | RG4 — Digital I/O |
| Chân 62 | RG5 — Digital I/O |
| Chân 63 | VCAP — Internal 2.5V regulator decoupling (4.7uF-10uF low-ESR) |
| Chân 64 | ENVREG — Internal regulator enable (tie to VDD to enable) |
Ứng dụng tiêu biểu
PIC18F67J50T-I/PT phù hợp cho 6 Áp dụngs: USB-to-UART Bridge, USB HID Peripherals, Industrial Sensor Data Logger, Automotive LIN Comfort/Body Node, USB-Connected Portable Test Instrument, Embedded Web/IoT Edge Node.
USB-to-UART Bridge
The PIC18F67J50T-I/PT is a natural fit for USB-to-UART bridges because it integrates a Full-Speed USB 2.0 device SIE alongside a hardware LIN-capable EUSART. At 48 MHz the MCU delivers 12 MIPS, easily handling 921,600-baud UART streaming while leaving CPU headroom for buffer management. The 3,904-byte SRAM accommodates 64-byte USB endpoints plus ring buffers for simultaneous TX/RX. Designers wire D+/D- to the USB connector with 90 ohm differential impedance and use the Vbus sense pin for attach detection, eliminating an external transceiver and reducing BOM cost versus discrete USB-UART ICs such as FT232.
Được đề xuất
USB HID Peripherals
For HID peripherals (keyboards, mice, gamepads, custom input devices), the PIC18F67J50T-I/PT's on-chip USB FS SIE and 49 digital I/O pins enable scan matrix reading, LED driving, and USB HID report generation without external logic. The 10-bit ADC supports analog joystick inputs alongside digital scan matrices, while the nanoWatt sleep modes let battery-powered mice meet USB suspend current (< 2.5 mA) requirements. The 128 KB flash holds full HID report descriptors and Bootloader/KB firmware with room for vendor-specific extensions, and the ICSP interface permits in-field firmware upgrades for product refreshes.
Được đề xuất
Industrial Sensor Data Logger
Industrial sensor data loggers benefit from the PIC18F67J50T-I/PT's 10-bit ADC with up to 16 channels for thermocouple, RTD, 4-20 mA, and bridge sensor digitization, plus 3,904 bytes of SRAM for circular sample buffers. Industrial temperature operation (-40 C to +85 C) matches factory-floor requirements, and the 128 KB flash stores weeks of timestamped readings. The I2C/SPI/EUSART ports attach external FRAM or SD cards for long-term storage, while the USB port enables fast log offload. The nanoWatt idle modes drop supply current during sleep intervals between samples, extending battery life in remote installations.
Được đề xuất
Automotive LIN Comfort/Body Node
Within an automotive LIN network, the PIC18F67J50T-I/PT (with extended qualification on related family parts) acts as a slave body/comfort node controlling window lifters, seat adjusters, mirror modules, or ambient lighting. The LIN-capable EUSART implements LIN 1.3/2.0/2.1 slave protocol in firmware without an external transceiver, and the 10-bit ADC reads mirror-position potentiometers and motor current sense. The 49 I/O pins drive multiple relays or H-bridge pre-drivers while the nanoWatt sleep modes meet automotive quiescent current targets. For AEC-Q100 qualified deployment, choose the PIC18F67J50 family automotive-grade variant.
Được đề xuất
USB-Connected Portable Test Instrument
Portable USB-connected instruments (logic probe front-ends, simple protocol analyzers, low-cost oscilloscope digitizer boards) benefit from the PIC18F67J50T-I/PT's combined USB, ADC, and timing resources. At 48 MHz the MCU samples external analog front-ends up to the 10-bit ADC's ~500 ksps throughput while streaming digitized data over Full-Speed USB to a host PC for display. The 128 KB flash stores calibration tables and protocol decoders, while ICSP permits in-field firmware updates. Industrial temperature operation ensures stable readings in laboratory and field environments without thermal drift.
Được đề xuất
Embedded Web/IoT Edge Node
For IoT edge nodes bridging sensors to USB-tethered hosts or to cloud gateways via USB-Ethernet dongles, the PIC18F67J50T-I/PT offers ample flash for MQTT-over-TCP stacks, JSON parsers, and TLS-lite security layers. The USB host capability allows direct attachment of USB-Ethernet or USB-Wi-Fi adapters, while the EUSART talks to Bluetooth or Sub-GHz modules for wireless backhaul. The 49 I/O pins drive sensor multiplexers, status LEDs, and user buttons, and nanoWatt sleep modes achieve single-digit mA standby currents suitable for solar/battery-powered edge installations.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F67J50T-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 | PIC18F67J10T-I/PT | PIC18F66J50T-I/PT | PIC18F65J50T-I/PT | PIC18F66J55-I/PT | PIC18F65K80T-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Integrated USB SIE | USB 2.0 FS (12 Mbit/s) | USB 2.0 FS (12 Mbit/s) | USB 2.0 FS (12 Mbit/s) | USB 2.0 FS (12 Mbit/s) | USB 2.0 FS (12 Mbit/s) | No USB |
| Maximum Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 64 MHz |
| Supply Voltage | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 1.8 V - 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
Bảo phân biệt quan trọng
- Integrated Full-Speed USB 2.0 SIE and transceiver (vsPIC18F65K80T-I/PT)
- Largest flash density in the 64-pin TQFP PIC18F87J50 family (vsPIC18F65J50T-I/PT)
- Industrial temperature range with extended peripherals (vsPIC18F67J10T-I/PT)
Ghi chú thiết kế
Estimated: At 48 MHz active and 3.3V VDD, the PIC18F67J50T-I/PT typically draws ~25 mA core current per Microchip datasheet typical characteristics. In USB suspend the part must drop below 2.5 mA system current to maintain USB compliance; switch to nanoWatt sleep and disable USB SIE clock to meet this. Decouple each VDD pin (18, 36) with 100 nF ceramic plus 4.7 uF bulk, and place the 4.7-10 uF Vcap capacitor within 5 mm of pin 63 with the lowest-ESR dielectric available (X5R/X7R).
Route the USB D+/D- pair as a 90 ohm differential with matched length (skew < 150 ps) and keep the pair over a continuous ground reference plane for the entire run. Place the Vcap capacitor on the same side as the IC with short traces to minimize core-ripple coupling into USB signaling. Per Microchip EMI/EMC design notes, place a ferrite bead or 10 ohm resistor in series with Vbus if the design must survive ESD strikes directly on the connector shield.
The internal 2.5V regulator (enabled by tying ENVREG=VDD) supplies the core and USB transceiver; insufficient Vcap decoupling produces core noise that can shift the USB eye diagram below USB 2.0 FS mask margins. Use a low-ESR 4.7 uF X5R/X7R 0603 (or larger) ceramic directly on pin 63 and verify the 3.3V rail is clean with an oscilloscope during USB enumeration. If the regulator is disabled (ENVREG tied to VSS), an external 2.5V supply must power the Vcap pin and meet the same ripple requirement.
Firmware developers frequently forget to disable unused peripherals' clocks via the appropriate PMD registers - leaving all peripherals enabled at 48 MHz can push active current to ~30 mA and break USB suspend budgets. Always invoke the recommended low-power initialization sequence from Microchip AN1095 (nanoWatt) before claiming low standby current. Likewise, do not configure RB6/RB7 as general I/O if ICSP in-field programming is required; doing so blocks subsequent firmware updates.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page; this -I/PT variant is not AEC-Q100 qualified - select the corresponding automotive-grade part for vehicle deployments. Halogen-free per Microchip material declaration.
