PIC18F26K80T-I/SS - 64KB Flash 8-bit MCU w/ ECAN & XLP | Microchip
MPN: PIC18F26K80T-I/SS ✓ Hoạt độngPIC18F26K80T-I/SS Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and programmable peripherals such as ADC, timers, communication interfaces, and I/O into one device. Within the system hierarchy, the PIC18F26K80T-I/SS is an 8-bit microcontroller -> MCU -> embedded processor -> semiconductor. The "K80" sub-family is targeted at low-power, CAN-connected embedded nodes that previously required external CAN controllers.
Key features include integrated ECAN (Enhanced Controller Area Network) peripheral supporting CAN 2.0B, an on-chip 12-bit A/D converter with up to 11 channels, three analog comparators, four timers, two capture/compare/PWM modules, an 8-bit parallel slave port, and nanoWatt XLP sleep currents below 100 nA typical. The CTMU enables touch sensing, capacitive proximity, and time-of-flight measurement without external analog circuitry. The 64 MHz maximum oscillator yields 16 MIPS instruction throughput, ample for typical sensor and actuator control loops.
Architecturally, the PIC18F26K80T-I/SS uses an enhanced Harvard RISC core with 16-bit instructions and 8-bit data path, plus hardware multiply and a single-cycle 8x8 multiplication. ECAN is implemented as a dedicated peripheral with independent masks/filters, reducing firmware complexity for automotive/industrial CAN nodes.
Typical applications include automotive body and chassis ECAN nodes, building control (HVAC, elevator controllers), industrial sensor and actuator networks, low-power remote sensor nodes, and battery-powered metering with CAN backhaul. The wide 1.8 V-5.5 V range supports direct lithium battery and 3.3 V/5 V system buses.
When designing with this part, ensure the ICSP/ICD pins (PGC/PGD, MCLR) are properly accessible for in-circuit programming and debugging, and follow Microchip AN228 for ECAN bus termination and biasing. The 28-SSOP package has moderate thermal resistance and is suitable for low-power industrial nodes.
This page synthesizes verified distributor pricing, cross-family drop-in alternatives from the PIC18 K80 family, and practical ECAN/Low-Power design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18F26K80T-I/SS — 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 PIC18F26K80T-I/SS (cùng hình factor và footprint) — khác nhau ở Package, Timers, ADC, Program Memory (Flash), Core Architecture.
PIC18F26K80-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F26K80-E/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F26K80T-I/SSVAO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F26K80-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F26K80T-I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit enhanced Harvard RISC |
| Family | PIC18 K80 (XLP, ECAN) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data Memory (RAM) | 3.6 KB (3.6K x 8) |
| EEPROM | 1 KB |
| Maximum CPU Frequency | 64 MHz |
| Instruction Throughput | 16 MIPS |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| I/O Pins | 24 |
| ADC | 12-bit, up to 11 channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| ECAN | Integrated CAN 2.0B |
| Comparators | 3 analog comparators |
| Timers | 4 (8-bit / 16-bit mix) |
| CCP/PWM Modules | 2 |
| Hộp | 28-pin SSOP (5.30 mm body) |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 1 |
Cấu hình chân PIC18F26K80T-I/SS
| Chân 1 | MCLR/VPP/RE3 — Master Clear (reset) input / programming voltage / digital I/O RE3 |
| Chân 2 | RA0 — Digital I/O RA0 / analog AN0 |
| Chân 3 | RA1 — Digital I/O RA1 / analog AN1 |
| Chân 4 | RA2 — Digital I/O RA2 / analog AN2 / VREF- |
| Chân 5 | RA3 — Digital I/O RA3 / analog AN3 / VREF+ |
| Chân 6 | RA4 — Digital I/O RA4 / analog AN4 |
| Chân 7 | RA5 — Digital I/O RA5 / analog AN5 |
| Chân 8 | VSS — Ground reference |
| Chân 9 | RA7 — Digital I/O RA7 / analog AN7 |
| Chân 10 | RA6 — Digital I/O RA6 / oscillator output |
| Chân 11 | RC0 — Digital I/O RC0 / analog AN8 |
| Chân 12 | RC1 — Digital I/O RC1 / analog AN9 |
| Chân 13 | RC2 — Digital I/O RC2 / analog AN10 |
| Chân 14 | RC3 — Digital I/O RC3 / analog AN11 / SCL |
| Chân 15 | RC4 — Digital I/O RC4 / SDA |
| Chân 16 | RC5 — Digital I/O RC5 |
| Chân 17 | RC6 — Digital I/O RC6 / TX |
| Chân 18 | RC7 — Digital I/O RC7 / RX |
| Chân 19 | VSS — Ground reference (digital) |
| Chân 20 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Chân 21 | RB0 — Digital I/O RB0 / interrupt-on-change |
| Chân 22 | RB1 — Digital I/O RB1 / interrupt-on-change |
| Chân 23 | RB2 — Digital I/O RB2 / interrupt-on-change |
| Chân 24 | RB3 — Digital I/O RB3 / interrupt-on-change |
| Chân 25 | RB4 — Digital I/O RB4 / interrupt-on-change |
| Chân 26 | RB5 — Digital I/O RB5 / interrupt-on-change / PGM |
| Chân 27 | RB6 — Digital I/O RB6 / PGC (ICSP clock) |
| Chân 28 | RB7 — Digital I/O RB7 / PGD (ICSP data) |
Ứng dụng tiêu biểu
PIC18F26K80T-I/SS phù hợp cho 6 Áp dụngs: Automotive Body & Chassis ECAN Nodes, Building Control & HVAC ECAN Networks, Industrial Sensor & Actuator Networks, Battery-Powered Remote Sensor Nodes, Touch & Proximity Sensing (CTMU), Elevator & Lift Control Panels.
Automotive Body & Chassis ECAN Nodes
The PIC18F26K80T-I/SS is a workhorse for distributed ECAN nodes in body electronics, chassis control, and HVAC modules where 1 Mbit/s CAN bus communication is mandatory. Its integrated ECAN 2.0B peripheral with 6 acceptance masks and 16 acceptance filters eliminates an external MCP2515 CAN controller and reduces BOM cost by ~$1 per node. The 64 MHz / 16 MIPS core easily handles CAN message parsing alongside sensor sampling at 1 kHz, and the 12-bit ADC supports ratiometric measurements on thermistor bridges. The wide 1.8-5.5 V supply range interfaces directly with automotive 12 V rails via a 5 V LDO, and -40C to +85C industrial temperature rating covers most cabin and engine-bay-adjacent placements.
Được đề xuất
Building Control & HVAC ECAN Networks
In HVAC zoning, elevator control panels, and building automation, the PIC18F26K80T-I/SS acts as the local intelligence behind each ECAN node. Its nanoWatt XLP technology drops sleep current below 100 nA, enabling battery-backed thermostats and wireless bridge nodes that sleep most of the time and only wake on ECAN traffic or timed interrupts. The CTMU supports capacitive user-interface buttons without an external touch controller, and the 12-bit ADC reads multiple temperature/humidity sensors on a shared analog bus. The 24 GPIO on the 28-SSOP leave headroom for driving triac interfaces, relay coils, and LED status indicators.
Được đề xuất
Industrial Sensor & Actuator Networks
The PIC18F26K80T-I/SS is well-suited for industrial 4-20 mA sensor transmitters, CAN-connected motor starters, and process-control I/O modules. Its 1.8-5.5 V range covers battery-powered wireless sensor nodes that harvest energy from the 4-20 mA loop, while the integrated ECAN peripheral aggregates multiple sensors onto a single CAN bus back to a PLC. The 12-bit ADC with 11 channels handles several analog inputs, and three on-chip comparators can implement window-detect alarms without firmware polling. NanoWatt XLP sleep currents extend battery life in remote industrial telemetry to years.
Được đề xuất
Battery-Powered Remote Sensor Nodes
For remote, battery-powered sensing - environmental monitoring, smart agriculture, and asset tracking - the PIC18F26K80T-I/SS excels through its nanoWatt XLP technology. Sleep current below 100 nA and Run current around 5 mA at 1 MHz mean a single CR2032 or 2xAA cell can power a node for years with duty-cycled wake-and-transmit operation. The 12-bit ADC reads battery voltage, temperature, and external analog sensors with 11 channels, while the integrated ECAN peripheral wakes the node to participate in bus activity. The 1.8 V minimum supply lets the MCU run directly from a partially discharged battery pack.
Được đề xuất
Touch & Proximity Sensing (CTMU)
The Charge Time Measurement Unit (CTMU) inside the PIC18F26K80T-I/SS enables capacitive touch buttons, sliders, and proximity sensors without any external analog IC. Combined with the 12-bit ADC, the CTMU measures sub-picofarad capacitance changes, supporting both self-capacitance and mutual-capacitance touch panels behind glass or plastic. The 24 GPIO on the 28-SSOP package accommodates up to 24 touch channels - more than sufficient for appliance control panels, security keypads, and human-machine interface (HMI) front panels in industrial equipment.
Được đề xuất
Elevator & Lift Control Panels
The PIC18F26K80T-I/SS has a long history in elevator control panels and lift car controllers where its ECAN peripheral interconnects car-top boards, hall call panels, and the central controller over a robust CAN bus. The 64 KB Flash accommodates the floor-mapping tables and safety state machines typical of these systems. Industrial temperature rating (-40C to +85C) handles unconditioned machine-room environments, and the SSOP-28 package is rugged enough for the vibration profile of elevator installations. Multiple CCP/PWM channels can drive LED indicators, displays, and buzzers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F26K80T-I/SS — 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 | PIC18F26K80-I/SS | PIC18F26K80-E/SS | PIC18F26K80T-I/SSVAO | PIC18F26K80-I/SO |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SOIC (wider body) |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 64 KB | 64 KB - same | 64 KB - same | 64 KB - same | 64 KB - same |
| RAM | 3.6 KB | 3.6 KB - same | 3.6 KB - same | 3.6 KB - same | 3.6 KB - same |
| CPU Speed | 64 MHz / 16 MIPS | 64 MHz - same | 64 MHz - same | 64 MHz - same | 64 MHz - same |
| ECAN | Yes (integrated) | Yes - same | Yes - same | Yes - same | Yes - same |
| Temperature Grade | -40C to +85C (I) | -40C to +85C - same | -40C to +125C (E = extended) | -40C to +85C, VAO aerospace screening | -40C to +85C - same |
| Packaging Format | Tape & Reel | Tube (hand assembly) | Tube (hand assembly) | Tape & Reel, VAO aerospace | Tube (SOIC) |
Bảo phân biệt quan trọng
- Integrated ECAN eliminates external CAN controller (vsPIC18F25K80T-I/SS)
- nanoWatt XLP sleep current below 100 nA (vsPIC18F26K42T-I/SS)
- Wide 1.8 V to 5.5 V single-rail operation (vsPIC18F25K80T-I/SS)
Ghi chú thiết kế
The PIC18F26K80T-I/SS operates from 1.8 V to 5.5 V single supply. Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 20), with a bulk 1-10 uF tantalum or ceramic capacitor at the board supply input. For sleep-mode battery applications, ensure the regulator's quiescent current is below 1 uA (e.g., MCP1700 1.6 uA typical) to preserve nanoWatt XLP sleep current below 100 nA. Avoid using switches or ferrite beads in series with VDD that introduce voltage drops exceeding 0.3 V at peak load.
Route the ICSP/ICD pins (PGC = RB6, PGD = RB7) to a 6-pin header with MCLR (pin 1) and VSS accessible; this allows MPLAB ICD 3 or PICkit 4 in-circuit programming without removing the MCU. The CAN bus traces (CANTX/CANRX) must be impedance-controlled to 120 ohms differential, with termination resistors only at the cable ends (not at every node). Keep CAN traces away from switching power and clock signals, and use a ground plane under the bus traces to minimize emissions per Microchip AN228 ECAN design guide.
Common pitfalls when designing with PIC18F26K80T-I/SS: (1) forgetting the MCLR pull-up resistor (typically 10 kOhm to VDD) - without it the MCU will not exit reset reliably; (2) leaving the ECAN peripheral's CI/OFF bit set after initialization, silently disabling bus activity; (3) using the ADC without the recommended acquisition time (Tacq) - read Microchip DS39977 section 23 for proper impedance and clock settings; (4) assuming the CTMU can drive capacitive loads without a series resistor for ESD protection; (5) over-driving RA4 as an open-drain output without a pull-up. Cross-check errata DS80000491 before finalizing firmware.
For ECAN bus integrity, follow Microchip's AN228 ECAN Physical Layer guidelines: 120 ohm termination at each cable end (not at every node), biasing resistors of 2.7 kOhm to VCC and 1.3 kOhm to ground on one node only, and a common-mode choke on each node's CANH/CANL lines for noisy environments. The MCP2551 / MCP2561 transceiver handles the physical layer; PIC18F26K80T-I/SS provides only the digital ECAN controller. Keep CANH/CANL traces short, matched in length, and routed over a continuous ground plane.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified (use -Q1 ordering code for automotive qualification). Not formally halogen-free in datasheet but Microchip standard compliance applies.
