PIC18F86J55-I/PT - 8-Bit 48MHz 96KB Flash USB MCU | Microchip
MPN: PIC18F86J55-I/PT ✓ نشطPIC18F86J55-I/PT نظرة عامة
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.
بدائل مباشرة لـ PIC18F86J55-I/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC18F86J55-I/PT (نفس عامل الشكل والبصمة) — يختلف في Package, ADC, Operating Temperature, Program Memory (Flash), Core.
PIC18F86J50-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18F66J55-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F86J55T-I/PT
✅ بديل مباشر✓ متوفر في المخزون
$6.5625 / وحدة
عرض ورقة البيانات ←PIC18F67J50-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F87J50-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F86J55-I/PT الحدود القصوى والخصائص الكهربائية
| 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) |
| عرض ناقل البيانات | 16-bit (Flash), 8-bit core |
| Maximum CPU Frequency | 48 MHz |
| جهد التغذية | 4.2 V to 5.5 V (note: 2.5V/3.3V part number suffix variants exist in the family) |
| I/O Pins | 70 |
| العلبة | 80-pin TQFP (12x12 mm, 1 mm height) |
| نوع التركيب | Surface Mount |
| درجة حرارة التشغيل | -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) |
| مستوى MSL | 3 (168 hours, JEDEC J-STD-020) |
| حالة RoHS | Compliant |
تكوين أطراف PIC18F86J55-I/PT
| دبوس 1 | RH0 — Digital I/O port RH0 |
| دبوس 2 | RH1 — Digital I/O port RH1 |
| دبوس 3 | RH2 — Digital I/O port RH2 |
| دبوس 4 | RH3 — Digital I/O port RH3 |
| دبوس 5 | RH4 — Digital I/O port RH4 |
| دبوس 6 | RH5 — Digital I/O port RH5 |
| دبوس 7 | RH6 — Digital I/O port RH6 |
| دبوس 8 | RH7 — Digital I/O port RH7 |
| دبوس 9 | VSS — Ground reference |
| دبوس 10 | RG0 — Digital I/O port RG0 |
| دبوس 11 | RG1 — Digital I/O port RG1 |
| دبوس 12 | RG2 — Digital I/O port RG2 |
| دبوس 13 | RG3 — Digital I/O port RG3 |
| دبوس 14 | RG4 — Digital I/O port RG4 / JTAG |
| دبوس 15 | RG5 — Digital I/O port RG5 / JTAG |
| دبوس 16 | RG6 — Digital I/O port RG6 |
| دبوس 17 | RG7 — Digital I/O port RG7 |
| دبوس 18 | VSS — Ground reference |
| دبوس 19 | VDD — Digital supply (2.5V/3.3V) |
| دبوس 20 | RF0 — Digital I/O port RF0 |
| دبوس 21 | RF1 — Digital I/O port RF1 |
| دبوس 22 | RF2 — Digital I/O port RF2 |
| دبوس 23 | RF3 — Digital I/O port RF3 |
| دبوس 24 | RF4 — Digital I/O port RF4 |
| دبوس 25 | RF5 — Digital I/O port RF5 |
| دبوس 26 | RF6 — Digital I/O port RF6 |
| دبوس 27 | RF7 — Digital I/O port RF7 |
| دبوس 28 | AVDD — Analog supply |
| دبوس 29 | AVSS — Analog ground |
| دبوس 30 | RA0 — Analog/Digital I/O RA0 / AN0 |
| دبوس 31 | RA1 — Analog/Digital I/O RA1 / AN1 |
| دبوس 32 | RA2 — Analog/Digital I/O RA2 / AN2 / VREF- |
| دبوس 33 | RA3 — Analog/Digital I/O RA3 / AN3 / VREF+ |
| دبوس 34 | RA4 — Digital I/O RA4 |
| دبوس 35 | RA5 — Digital I/O RA5 |
| دبوس 36 | RA6 — Digital I/O RA6 / OSC2 |
| دبوس 37 | RA7 — Digital I/O RA7 / OSC1 |
| دبوس 38 | VSS — Ground reference |
| دبوس 39 | VDD — Digital supply (2.5V/3.3V) |
| دبوس 40 | RB0 — Digital I/O port RB0 / INT0 |
| دبوس 41 | RB1 — Digital I/O port RB1 / INT1 |
| دبوس 42 | RB2 — Digital I/O port RB2 / INT2 |
| دبوس 43 | RB3 — Digital I/O port RB3 / INT3 |
| دبوس 44 | RB4 — Digital I/O port RB4 |
| دبوس 45 | RB5 — Digital I/O port RB5 |
| دبوس 46 | RB6 — Digital I/O port RB6 / ICSPCLK |
| دبوس 47 | RB7 — Digital I/O port RB7 / ICSPDAT |
| دبوس 48 | VSS — Ground reference |
| دبوس 49 | VDD — Digital supply (2.5V/3.3V) |
| دبوس 50 | RC0 — Digital I/O port RC0 |
| دبوس 51 | RC1 — Digital I/O port RC1 / T1OSI |
| دبوس 52 | RC2 — Digital I/O port RC2 / T1OSO |
| دبوس 53 | VUSB — USB internal transceiver supply (3.3V LDO output) |
| دبوس 54 | VDD — Digital supply (2.5V/3.3V) |
| دبوس 55 | RC3 — Digital I/O port RC3 |
| دبوس 56 | RC4 — Digital I/O port RC4 / USB D- |
| دبوس 57 | RC5 — Digital I/O port RC5 / USB D+ |
| دبوس 58 | RC6 — Digital I/O port RC6 / TX |
| دبوس 59 | RC7 — Digital I/O port RC7 / RX |
| دبوس 60 | VSS — Ground reference |
| دبوس 61 | RD0 — Digital I/O port RD0 |
| دبوس 62 | RD1 — Digital I/O port RD1 |
| دبوس 63 | RD2 — Digital I/O port RD2 |
| دبوس 64 | RD3 — Digital I/O port RD3 |
| دبوس 65 | RD4 — Digital I/O port RD4 |
| دبوس 66 | RD5 — Digital I/O port RD5 |
| دبوس 67 | RD6 — Digital I/O port RD6 |
| دبوس 68 | RD7 — Digital I/O port RD7 |
| دبوس 69 | VSS — Ground reference |
| دبوس 70 | VDD — Digital supply (2.5V/3.3V) |
| دبوس 71 | RE0 — Digital I/O port RE0 |
| دبوس 72 | RE1 — Digital I/O port RE1 |
| دبوس 73 | RE2 — Digital I/O port RE2 |
| دبوس 74 | RE3 — Digital I/O port RE3 |
| دبوس 75 | RE4 — Digital I/O port RE4 |
| دبوس 76 | RE5 — Digital I/O port RE5 |
| دبوس 77 | RE6 — Digital I/O port RE6 |
| دبوس 78 | RE7 — Digital I/O port RE7 |
| دبوس 79 | MCLR — Master Clear (reset, active low) |
| دبوس 80 | RJ0 — Digital I/O port RJ0 |
التطبيقات النموذجية
PIC18F86J55-I/PT مناسب لـ 6 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC18F86J55-I/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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) |
أبرز الفروقات
- Largest Flash in the PIC18 J55 USB family (مقابلPIC18F86J50-I/PT)
- 70 I/O pins in 80-pin TQFP (مقابلPIC18F66J55-I/PT)
- Industrial temperature range (-40C to +85C) (مقابلPIC18F85K22T-I/PT (K22 family))
ملاحظات التصميم
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.
معلومات الامتثال
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.
