PIC18F86J55-I/PT - 8-Bit 48MHz 96KB Flash USB MCU | Microchip
MPN: PIC18F86J55-I/PT ✓ Hoạt độngPIC18F86J55-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions from internal Flash memory using an 8-bit data path. It belongs to the microcontroller family within the broader semiconductor hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor. The PIC18F86J55 belongs to Microchip's PIC18J sub-family, distinguished by low-voltage (2.5V/3.3V) operation, integrated USB 2.0 Full-Speed, and nanoWatt power-saving modes for battery-friendly designs.
Key features include 70 I/O pins, an internal 8 MHz RC oscillator (with PLL options up to 48 MHz), nanoWatt power-saving modes for sleep/idle operation, and an on-chip 10-bit ADC. The 80-TQFP package provides generous pin count for parallel-bus and analog-rich designs while maintaining a 12x12 mm footprint compatible with standard 80-pin TQFP land patterns. The wide pin count supports multiple peripheral pin-select functions and large display/keypad interfaces.
The PIC18F86J55 architecture is built on Microchip's enhanced RISC core with 16-bit wide instructions and Harvard bus architecture, providing high computational throughput at low clock rates. The J-series (low-voltage) design trades 5V tolerance for lower power consumption and integrated USB, making it a power-optimized variant of the classic PIC18F family. Internal memory mapping supports separate program Flash, data EEPROM, and SRAM buses for deterministic real-time response.
Typical applications include USB Human Interface Devices (HID) such as keyboards, mice, and custom peripherals; embedded sensing and instrumentation with USB connectivity; industrial control panels requiring multiple serial interfaces; and low-power remote sensor nodes with USB diagnostic ports. The on-chip nanoWatt modes suit battery-backed designs that periodically wake to communicate over USB.
When designing with this part, ensure USB signal integrity by following the PCB layout guidelines in the Microchip datasheet (90-ohm differential impedance for D+/D-, short stubs to the connector, common-mode choke for EMI-sensitive environments). Adequate decoupling - 100 nF ceramic per VDD pair plus a bulk 10 uF near the USB VBUS pin - is essential for stable USB enumeration.
This page synthesizes distributor pricing, drop-in PIC18F86J55 family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18F86J55-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 PIC18F86J55-I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Program Memory (Flash), Core.
PIC18F86J50-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F66J55-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F86J55T-I/PT
✅ Drop-In✓ Còn hàng
$6.5625 / Đơn vị
Xem tài liệu →PIC18F67J50-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F87J50-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F86J55-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit (PIC18 enhanced RISC) |
| Family | PIC® 18J Series |
| Program Memory Type | Flash |
| Program Memory Size | 96 KB (48K x 16) |
| RAM Size | 3.936 KB (3936 bytes) |
| Bề rộng đường dữ liệu | 16-bit (Flash), 8-bit core |
| Maximum CPU Frequency | 48 MHz |
| Điện áp cung cấp | 4.2 V to 5.5 V (note: 2.5V/3.3V part number suffix variants exist in the family) |
| I/O Pins | 70 |
| Hộp | 80-pin TQFP (12x12 mm, 1 mm height) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial, -I suffix) |
| USB Interface | USB 2.0 Full-Speed (12 Mbit/s), on-chip transceiver |
| Other Serial Interfaces | MI2C, SPI (up to 10 Mbit/s), EUSART (LIN-capable) |
| ADC | 10-bit on-chip |
| Power-Saving Modes | nanoWatt (Sleep, Idle, alternate oscillator switching) |
| Cấp MSL | 3 (168 hours, JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F86J55-I/PT
| Chân 1 | RH0 — Digital I/O port RH0 |
| Chân 2 | RH1 — Digital I/O port RH1 |
| Chân 3 | RH2 — Digital I/O port RH2 |
| Chân 4 | RH3 — Digital I/O port RH3 |
| Chân 5 | RH4 — Digital I/O port RH4 |
| Chân 6 | RH5 — Digital I/O port RH5 |
| Chân 7 | RH6 — Digital I/O port RH6 |
| Chân 8 | RH7 — Digital I/O port RH7 |
| Chân 9 | VSS — Ground reference |
| Chân 10 | RG0 — Digital I/O port RG0 |
| Chân 11 | RG1 — Digital I/O port RG1 |
| Chân 12 | RG2 — Digital I/O port RG2 |
| Chân 13 | RG3 — Digital I/O port RG3 |
| Chân 14 | RG4 — Digital I/O port RG4 / JTAG |
| Chân 15 | RG5 — Digital I/O port RG5 / JTAG |
| Chân 16 | RG6 — Digital I/O port RG6 |
| Chân 17 | RG7 — Digital I/O port RG7 |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VDD — Digital supply (2.5V/3.3V) |
| Chân 20 | RF0 — Digital I/O port RF0 |
| Chân 21 | RF1 — Digital I/O port RF1 |
| Chân 22 | RF2 — Digital I/O port RF2 |
| Chân 23 | RF3 — Digital I/O port RF3 |
| Chân 24 | RF4 — Digital I/O port RF4 |
| Chân 25 | RF5 — Digital I/O port RF5 |
| Chân 26 | RF6 — Digital I/O port RF6 |
| Chân 27 | RF7 — Digital I/O port RF7 |
| Chân 28 | AVDD — Analog supply |
| Chân 29 | AVSS — Analog ground |
| Chân 30 | RA0 — Analog/Digital I/O RA0 / AN0 |
| Chân 31 | RA1 — Analog/Digital I/O RA1 / AN1 |
| Chân 32 | RA2 — Analog/Digital I/O RA2 / AN2 / VREF- |
| Chân 33 | RA3 — Analog/Digital I/O RA3 / AN3 / VREF+ |
| Chân 34 | RA4 — Digital I/O RA4 |
| Chân 35 | RA5 — Digital I/O RA5 |
| Chân 36 | RA6 — Digital I/O RA6 / OSC2 |
| Chân 37 | RA7 — Digital I/O RA7 / OSC1 |
| Chân 38 | VSS — Ground reference |
| Chân 39 | VDD — Digital supply (2.5V/3.3V) |
| Chân 40 | RB0 — Digital I/O port RB0 / INT0 |
| Chân 41 | RB1 — Digital I/O port RB1 / INT1 |
| Chân 42 | RB2 — Digital I/O port RB2 / INT2 |
| Chân 43 | RB3 — Digital I/O port RB3 / INT3 |
| Chân 44 | RB4 — Digital I/O port RB4 |
| Chân 45 | RB5 — Digital I/O port RB5 |
| Chân 46 | RB6 — Digital I/O port RB6 / ICSPCLK |
| Chân 47 | RB7 — Digital I/O port RB7 / ICSPDAT |
| Chân 48 | VSS — Ground reference |
| Chân 49 | VDD — Digital supply (2.5V/3.3V) |
| Chân 50 | RC0 — Digital I/O port RC0 |
| Chân 51 | RC1 — Digital I/O port RC1 / T1OSI |
| Chân 52 | RC2 — Digital I/O port RC2 / T1OSO |
| Chân 53 | VUSB — USB internal transceiver supply (3.3V LDO output) |
| Chân 54 | VDD — Digital supply (2.5V/3.3V) |
| Chân 55 | RC3 — Digital I/O port RC3 |
| Chân 56 | RC4 — Digital I/O port RC4 / USB D- |
| Chân 57 | RC5 — Digital I/O port RC5 / USB D+ |
| Chân 58 | RC6 — Digital I/O port RC6 / TX |
| Chân 59 | RC7 — Digital I/O port RC7 / RX |
| Chân 60 | VSS — Ground reference |
| Chân 61 | RD0 — Digital I/O port RD0 |
| Chân 62 | RD1 — Digital I/O port RD1 |
| Chân 63 | RD2 — Digital I/O port RD2 |
| Chân 64 | RD3 — Digital I/O port RD3 |
| Chân 65 | RD4 — Digital I/O port RD4 |
| Chân 66 | RD5 — Digital I/O port RD5 |
| Chân 67 | RD6 — Digital I/O port RD6 |
| Chân 68 | RD7 — Digital I/O port RD7 |
| Chân 69 | VSS — Ground reference |
| Chân 70 | VDD — Digital supply (2.5V/3.3V) |
| Chân 71 | RE0 — Digital I/O port RE0 |
| Chân 72 | RE1 — Digital I/O port RE1 |
| Chân 73 | RE2 — Digital I/O port RE2 |
| Chân 74 | RE3 — Digital I/O port RE3 |
| Chân 75 | RE4 — Digital I/O port RE4 |
| Chân 76 | RE5 — Digital I/O port RE5 |
| Chân 77 | RE6 — Digital I/O port RE6 |
| Chân 78 | RE7 — Digital I/O port RE7 |
| Chân 79 | MCLR — Master Clear (reset, active low) |
| Chân 80 | RJ0 — Digital I/O port RJ0 |
Ứng dụng tiêu biểu
PIC18F86J55-I/PT phù hợp cho 6 Áp dụngs: USB Human Interface Device (HID), Industrial Control Panel with USB Diagnostics, USB Tethered Sensor / Data Logger, USB Bootloader / Programming Dongle, Embedded Audio Streaming over USB, Point-of-Sale Terminal / Kiosk Module.
USB Human Interface Device (HID)
The PIC18F86J55-I/PT is engineered for USB HID applications such as keyboards, mice, custom control surfaces, and industrial input panels. Its integrated USB 2.0 Full-Speed peripheral (12 Mbit/s) plus on-chip transceiver eliminates the need for external USB chips, while the 96 KB Flash supports USB HID report descriptors, multi-button/axis mapping tables, and CDC stacks simultaneously. The 48 MHz core provides 16 MIPS, enough for real-time key debouncing, LED animation, and composite HID/COM composite device designs without offloading logic.
Được đề xuất
Industrial Control Panel with USB Diagnostics
The PIC18F86J55-I/PT is well suited for industrial control panels that require USB diagnostics ports alongside EUSART (LIN-capable) for legacy fieldbus and SPI (up to 10 Mbit/s) for fast sensor or display interfacing. The 70 I/O pins accommodate segmented displays, keypad matrices, indicator towers, and PWM-actuated relays. nanoWatt power-saving modes cut current during standby, while -40C to +85C industrial temperature range tolerates cabinet environments near motors and switching power supplies.
Được đề xuất
USB Tethered Sensor / Data Logger
The PIC18F86J55-I/PT fits USB tethered data loggers that sample slow analog signals and stream them over USB CDC virtual COM port to a host PC. The 10-bit ADC combined with 70 I/O pins supports multi-channel sensor multiplexing, while 3.936 KB RAM buffers sample bursts before USB transfers. Sleep current in the microampere range allows the device to disconnect from the bus cleanly when VBUS is removed, preventing phantom power drain in field-instrument use cases.
Được đề xuất
USB Bootloader / Programming Dongle
The PIC18F86J55-I/PT can host a USB bootloader that reprograms external devices or its own Flash, enabling field-upgradeable firmware in production units. The 96 KB Flash easily accommodates Microchip's USB bootloader plus user application, and self-programmability via ICSP allows in-field firmware refresh. The four serial ports (USB, MI2C, SPI, EUSART) let the dongle bridge legacy UART devices to USB hosts during manufacturing test or technician service updates.
Được đề xuất
Embedded Audio Streaming over USB
The PIC18F86J55-I/PT can implement USB isochronous audio class devices for low-bandwidth audio streaming (microphone input or headphone output), useful in conferencing peripherals or intercoms. The 48 MHz core sustains 16 MIPS - enough for 8 kHz mono audio framing, basic filtering, and isochronous endpoint management. The on-chip 10-bit ADC and PWM plus SPI audio DACs support direct analog I/O. Larger designs may use the PIC18F87J50 for additional buffer memory.
Được đề xuất
Point-of-Sale Terminal / Kiosk Module
The PIC18F86J55-I/PT can drive point-of-sale terminals and kiosks that need USB device connectivity (for payment terminals or barcode scanners), EUSART for legacy serial peripherals (cash drawers, receipt printers), and enough I/O for keypad and display. The wide 70 I/O pin count supports keypad scanning, LCD/LED drive, and indicator control without external I/O expanders. The 96 KB Flash stores USB stacks, device drivers, and application state machines typical of embedded POS modules.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F86J55-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 | PIC18F86J50-I/PT | PIC18F86J55T-I/PT | PIC18F87J50-I/PT | PIC18F67J50-I/PT | PIC18F66J55-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 64-TQFP - smaller footprint | 64-TQFP - smaller footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | 8-bit PIC18 enhanced RISC | 8-bit PIC18 enhanced RISC | 8-bit PIC18 enhanced RISC | 8-bit PIC18 enhanced RISC | 8-bit PIC18 enhanced RISC | 8-bit PIC18 enhanced RISC |
| Program Memory (Flash) | 96 KB | 64 KB | 96 KB (same) | 128 KB | 128 KB | 96 KB (same) |
| RAM Size | 3.936 KB | 3.936 KB | 3.936 KB (same) | 3.936 KB | 3.936 KB | 3.936 KB (same) |
| Maximum Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| USB Interface | USB 2.0 Full-Speed (12 Mbit/s) | USB 2.0 Full-Speed (12 Mbit/s) | USB 2.0 Full-Speed (12 Mbit/s) | USB 2.0 Full-Speed (12 Mbit/s) | USB 2.0 Full-Speed (12 Mbit/s) | USB 2.0 Full-Speed (12 Mbit/s) |
| I/O Pin Count | 70 | 70 | 70 | 70 | 51 | 51 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Bảo phân biệt quan trọng
- Largest Flash in the PIC18 J55 USB family (vsPIC18F86J50-I/PT)
- 70 I/O pins in 80-pin TQFP (vsPIC18F66J55-I/PT)
- Industrial temperature range (-40C to +85C) (vsPIC18F85K22T-I/PT (K22 family))
Ghi chú thiết kế
The USB D+ and D- differential pair must be routed with 90-ohm differential impedance to maintain USB 2.0 Full-Speed signal integrity. Keep the differential trace length under 50 mm, use a continuous ground reference plane underneath, and place the common-mode choke near the USB connector side. Series ferrite beads or a CM choke are recommended in EMI-sensitive environments (medical, automotive) to suppress common-mode emissions on the data pair.
Decouple each VDD/AVDD pair with a 100 nF ceramic capacitor placed within 2 mm of the pin, plus a shared 10 uF bulk capacitor near the USB VBUS pin. The PIC18F86J55 internal 3.3V LDO (VUSB pin 53) requires a 220 nF bypass cap for stable USB transceiver operation. Inadequate decoupling on VUSB is a leading cause of USB enumeration failures - measure VUSB with an oscilloscope during enumeration to verify the 3.3V rail is ripple-free.
The PIC18F86J55-I/PT operates at 2.5V/3.3V (not 5V); applying 5V to VDD will damage the device. Always verify the variant suffix (J5x vs FJ5x) and target supply rail. Also note that the I/O pins are NOT 5V tolerant - use external level shifters when interfacing to 5V peripherals such as legacy sensors or LCDs. Finally, configure the Configuration bits (CONFIG1L) for the correct oscillator mode before code execution begins to avoid clock-related startup failures.
Thông tin tuân thủ
RoHS compliant per Microchip product page. AEC-Q100 not qualified - check PIC18F automotive variants for qualified parts. Halogen-free status not explicitly stated in the verified web data.
