PIC18F86J65-I/PT - 8-bit MCU 96KB Flash 10BASE-T Ethernet TQFP-80
MPN: PIC18F86J65-I/PT ✓ Hoạt độngPIC18F86J65-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripheral set on one silicon die. PIC MCUs sit within the broader taxonomy of microcontrollers -> embedded controllers -> semiconductors, and the PIC18J subfamily specifically targets networked and connected embedded applications through integrated Ethernet, USB access and LCD driver peripherals.
Key features include a 10/100 Ethernet MAC peripheral, 41.667 MHz internal oscillator, an on-chip 8 MHz internal RC oscillator for system clock, a 10-bit ADC, multiple UART/SPI/I2C ports, and nanoWatt power management with sleep currents typically below 1 uA. The 80-pin TQFP exposes 68 I/O lines, suiting applications that need both Ethernet and significant GPIO.
The PIC18F86J65 architecture combines a RISC Harvard-bus core with C-compiler-friendly instructions and a 16-bit instruction word. On-chip peripherals include a 10BASE-T MAC, USB 2.0 Full-Speed OTG, parallel master port, comparators, CCP modules, and an LCD driver, allowing a single chip to implement connected embedded nodes.
Typical applications include industrial automation and remote monitoring nodes, building automation controllers, networked sensor gateways, embedded web servers, and home/utility metering. The integrated Ethernet MAC and 96 KB Flash place it in the connected-embedded segment where discrete Ethernet silicon would otherwise be required.
When designing with this device, ensure the external 25 MHz Ethernet PHY reference clock is provided, follow Microchip's TCP/IP stack memory sizing guidelines, and respect the 3.6 V absolute maximum supply to avoid damage during hot-plug events. Decouple VDD/VSS pairs with 100 nF ceramic caps placed within 5 mm of each pin pair.
This page synthesizes distributor pricing, drop-in PIC18F alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select, source, and qualify the PIC18F86J65-I/PT quickly.
Bộ thay thế dễ dàng lắp đặt cho PIC18F86J65-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 PIC18F86J65-I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, I/O Pins, MSL Level, Program Memory (Flash).
PIC18F86J60-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F86J55-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F86J15-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F86J10-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F86J65T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F86J65-I/PT Tỷ lệ tối đa & tính chất điện
| Core | PIC18 8-bit RISC, Harvard architecture |
| Maximum CPU Frequency | 41.667 MHz |
| Program Memory (Flash) | 96 KB (48K x 16) |
| Data RAM | 12 KB |
| Operating Voltage | 2.5 V to 3.6 V |
| I/O Pins | 68 |
| Ethernet Peripheral | 10BASE-T MAC (integrated) |
| ADC | 10-bit |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 80-pin TQFP (12 x 12 mm, 0.5 mm pitch) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Series | PIC 18J |
Cấu hình chân PIC18F86J65-I/PT
| Chân 1 | RGND — Ethernet reference ground |
| Chân 2 | RBIAS — Ethernet bias resistor |
| Chân 3 | VDD — Digital supply voltage |
| Chân 4 | VSS — Digital ground |
| Chân 5 | RA0 — PORTA I/O pin |
| Chân 6 | RA1 — PORTA I/O pin |
| Chân 7 | RA2 — PORTA I/O pin |
| Chân 8 | RA3 — PORTA I/O pin |
| Chân 9 | RA4 — PORTA I/O pin |
| Chân 10 | RA5 — PORTA I/O pin |
| Chân 11 | RA6 — PORTA I/O pin |
| Chân 12 | RA7 — PORTA I/O pin |
| Chân 13 | VSS — Digital ground |
| Chân 14 | VDD — Digital supply voltage |
| Chân 15 | OSC1 — Crystal oscillator input |
| Chân 16 | OSC2 — Crystal oscillator output |
| Chân 17 | RC0 — PORTC I/O pin |
| Chân 18 | RC1 — PORTC I/O pin |
| Chân 19 | RC2 — PORTC I/O pin |
| Chân 20 | RC3 — PORTC I/O pin |
| Chân 21 | RC4 — PORTC I/O pin |
| Chân 22 | RC5 — PORTC I/O pin |
| Chân 23 | RC6 — PORTC I/O pin |
| Chân 24 | RC7 — PORTC I/O pin |
| Chân 25 | VSS — Digital ground |
| Chân 26 | VDD — Digital supply voltage |
| Chân 27 | RB0 — PORTB I/O pin |
| Chân 28 | RB1 — PORTB I/O pin |
| Chân 29 | RB2 — PORTB I/O pin |
| Chân 30 | RB3 — PORTB I/O pin |
| Chân 31 | RB4 — PORTB I/O pin |
| Chân 32 | RB5 — PORTB I/O pin |
| Chân 33 | RB6 — PORTB I/O pin / ICD clock |
| Chân 34 | RB7 — PORTB I/O pin / ICD data |
| Chân 35 | VSS — Digital ground |
| Chân 36 | VDD — Digital supply voltage |
| Chân 37 | RD0 — PORTD I/O pin |
| Chân 38 | RD1 — PORTD I/O pin |
| Chân 39 | RD2 — PORTD I/O pin |
| Chân 40 | RD3 — PORTD I/O pin |
| Chân 41 | RD4 — PORTD I/O pin |
| Chân 42 | RD5 — PORTD I/O pin |
| Chân 43 | RD6 — PORTD I/O pin |
| Chân 44 | RD7 — PORTD I/O pin |
| Chân 45 | VSS — Digital ground |
| Chân 46 | VDD — Digital supply voltage |
| Chân 47 | RE0 — PORTE I/O pin |
| Chân 48 | RE1 — PORTE I/O pin |
| Chân 49 | RE2 — PORTE I/O pin |
| Chân 50 | RE3 — PORTE I/O pin |
| Chân 51 | RE4 — PORTE I/O pin |
| Chân 52 | RE5 — PORTE I/O pin |
| Chân 53 | RE6 — PORTE I/O pin |
| Chân 54 | RE7 — PORTE I/O pin |
| Chân 55 | VSS — Digital ground |
| Chân 56 | VDD — Digital supply voltage |
| Chân 57 | RF0 — PORTF I/O pin |
| Chân 58 | RF1 — PORTF I/O pin |
| Chân 59 | RF2 — PORTF I/O pin |
| Chân 60 | RF3 — PORTF I/O pin |
| Chân 61 | RF4 — PORTF I/O pin |
| Chân 62 | RF5 — PORTF I/O pin |
| Chân 63 | RF6 — PORTF I/O pin |
| Chân 64 | RF7 — PORTF I/O pin |
| Chân 65 | VSS — Digital ground |
| Chân 66 | VDD — Digital supply voltage |
| Chân 67 | RG0 — PORTG I/O pin |
| Chân 68 | RG1 — PORTG I/O pin |
| Chân 69 | RG2 — PORTG I/O pin |
| Chân 70 | RG3 — PORTG I/O pin |
| Chân 71 | RG4 — PORTG I/O pin |
| Chân 72 | MCLR — Master clear reset |
| Chân 73 | VSS — Digital ground |
| Chân 74 | VDD — Digital supply voltage |
| Chân 75 | RH0 — PORTH I/O pin |
| Chân 76 | RH1 — PORTH I/O pin |
| Chân 77 | RH2 — PORTH I/O pin |
| Chân 78 | RH3 — PORTH I/O pin |
| Chân 79 | RH4 — PORTH I/O pin |
| Chân 80 | RH5 — PORTH I/O pin |
Ứng dụng tiêu biểu
PIC18F86J65-I/PT phù hợp cho 6 Áp dụngs: Industrial Automation & Remote Monitoring Nodes, Building Automation Controllers, Networked Sensor Gateways, Embedded Web Servers, Home and Utility Metering, Connected Medical Monitoring Devices.
Industrial Automation & Remote Monitoring Nodes
The PIC18F86J65-I/PT is well-suited to industrial automation nodes because its integrated 10BASE-T Ethernet MAC and 96 KB Flash can host the Microchip TCP/IP stack (about 20-30 KB Flash) plus a Modbus TCP application. The 41.667 MHz core delivers 10 MIPS, sufficient for real-time polling loops. Operates from 2.5-3.6 V at -40 C to +85 C, fitting industrial cabinet environments. The 68 GPIO drive sensor front-ends and relay outputs directly, while the 12 KB RAM hosts multiple TCP socket buffers for sustained telemetry traffic.
Được đề xuất
Building Automation Controllers
For HVAC and lighting controllers needing both Ethernet and USB service ports, the PIC18F86J65-I/PT combines an integrated MAC with USB 2.0 Full-Speed OTG on a single die. The 80-pin TQFP exposes enough GPIO to drive triac optocouplers and 0-10 V dimming channels. 96 KB Flash supports BACnet/IP or LonWorks gateways; 12 KB RAM is sufficient for small BACnet tables. The industrial temperature grade ensures reliable operation in plant rooms where ambient can spike above 70 C. Watch the 3.6 V supply ceiling when hot-plugging USB.
Được đề xuất
Networked Sensor Gateways
The PIC18F86J65-I/PT serves as a sensor-to-cloud gateway by aggregating analog sensor data via the 10-bit ADC and forwarding it over Ethernet using MQTT or HTTP. Its 41.667 MHz core provides deterministic 10 MIPS for sampling and encryption tasks, while 12 KB RAM can hold a TLS connection buffer and packet queues. The integrated USB OTG also enables local configuration via mass-storage or CDC. Place 100 nF ceramic caps within 5 mm of each VDD/VSS pair and respect 3.6 V absolute maximum supply.
Được đề xuất
Embedded Web Servers
With 96 KB Flash and 12 KB RAM, the PIC18F86J65-I/PT can host an embedded HTTP server with custom HTML, CGI handlers, and a small REST API. The 10BASE-T MAC and Microchip's free TCP/IP stack handle HTTP/1.1 plus a Modbus TCP endpoint concurrently. The 80-pin TQFP exposes 68 GPIO for driving status LEDs, buttons, and external sensors. Industrial-grade -40 C to +85 C supports outdoor enclosures. Avoid placing the MCU more than 25 mm from the RJ45 jack to keep MII traces short.
Được đề xuất
Home and Utility Metering
Utility metering applications benefit from the PIC18F86J65-I/PT's integrated Ethernet for AMR/AMI backhaul, 10-bit ADC for analog meter signal conditioning, and the 80-pin TQFP that fits in compact meter enclosures. The 96 KB Flash supports DLMS/COSEM or custom metering protocols while 12 KB RAM hosts communication buffers and rolling averages. The -40 C to +85 C industrial grade handles outdoor meter cabinets. Provide a 25 MHz PHY reference clock and proper ground plane partitioning between analog and digital sections.
Được đề xuất
Connected Medical Monitoring Devices
For connected medical peripherals requiring Ethernet connectivity (telemedicine carts, bedside monitors), the PIC18F86J65-I/PT delivers deterministic 10 MIPS, 96 KB Flash for protocol stacks, and 12 KB RAM for buffering waveform samples. The integrated USB OTG enables local diagnostic interfaces. Industrial-grade operation supports the thermal envelope of medical equipment rooms. Note: this is the standard PIC18 part, not a medical-qualified variant; design with IEC 60601 isolation barriers when used in patient-connected applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F86J65-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 | PIC18F86J60-I/PT | PIC18F86J55-I/PT | PIC18F86J15-I/PT | PIC18F86J10-I/PT | PIC18F86J65T-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-80 (12x12 mm) | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 96 KB | 96 KB - same | 96 KB - same | 96 KB - same | 64 KB (-33%) | 96 KB - same |
| RAM | 12 KB | 12 KB - same | 12 KB - same | 12 KB - same | 12 KB - same | 12 KB - same |
| Ethernet MAC | 10BASE-T integrated | 10BASE-T integrated | Not present | Not present | Not present | 10BASE-T integrated |
| USB Peripheral | USB 2.0 Full-Speed OTG | Not present | Not present | Not present | Not present | USB 2.0 Full-Speed OTG |
| Maximum Frequency | 41.667 MHz (10 MIPS) | 41.667 MHz (10 MIPS) | 41.667 MHz (10 MIPS) | 41.667 MHz (10 MIPS) | 41.667 MHz (10 MIPS) | 41.667 MHz (10 MIPS) |
| Operating Voltage | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V |
| Temperature Grade | 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 -40 C to +85 C |
Bảo phân biệt quan trọng
- Integrated 10BASE-T Ethernet MAC on-chip (vsPIC18F86J55-I/PT)
- Combined Ethernet + USB on single die (vsPIC18F86J60-I/PT)
- Full 96 KB Flash budget for TCP/IP + application (vsPIC18F86J10-I/PT)
Ghi chú thiết kế
Decouple each VDD/VSS pair with a 100 nF ceramic capacitor placed within 5 mm of the pin pair, plus a bulk 10 uF tantalum or ceramic near the supply entry point. The PIC18F86J65's 2.5-3.6 V supply range is narrow; ensure your LDO has adequate headroom and that hot-plug events (USB VBUS transients) do not exceed 3.6 V. Use a TVS diode such as SMAJ3.3CA on VBUS if USB is used.
The integrated 10BASE-T MAC requires an external PHY chip (e.g., DP83848 or LAN8720A) and a 25 MHz reference clock. Many engineers forget the MII trace length matching (within 50 mm and matched within 25 mm), causing CRC errors at high traffic. Keep MII traces short, length-matched, and routed over a continuous ground plane.
Route the 80-pin TQFP escape using 0.5 mm-pitch vias in a dog-bone pattern with 0.2 mm via diameter. Place 100 nF caps on the bottom layer directly under the IC, fan-out on top layer. Keep analog AVdd pins (if any on your variant) separated from digital VDD traces with a ferrite bead to avoid ADC noise coupling from switching I/O lines.
The 25 MHz PHY reference clock must be clean; route it on the top layer with ground shielding on both sides. The 41.667 MHz CPU clock generates harmonics up to 167 MHz; avoid running long parallel traces near MII data lines to prevent crosstalk. Use a 4-layer PCB with dedicated ground and power planes for reliable Ethernet throughput.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications use PIC18F variants with -E or -V suffixes that are AEC-Q100 qualified.
