PIC18LF26K83T-I/SO - 64KB Flash 8-bit MCU with CAN | Microchip
MPN: PIC18LF26K83T-I/SO ✓ Hoạt độngPIC18LF26K83T-I/SO Tóm tắt
What is a PIC microcontroller? PIC (Peripheral Interface Controller) microcontrollers are Microchip's proprietary 8/16/32-bit RISC-based MCUs with a Harvard architecture, belonging to the broader category of microcontrollers -> embedded processors -> semiconductors. Within Microchip's portfolio the PIC18 family sits in the mid-range 8-bit tier, offering more peripherals, RAM and code density than the PIC10/12/16 families while retaining the same instruction set. The 'K83' sub-family specifically integrates an ADC2 (12-bit ADC with Computation) and a CAN FD controller, making it a hybrid analog/digital/communications MCU.
Key features of the PIC18LF26K83 include 64 KB (32K x 16) self-programmable Flash, 4 KB SRAM, 1 KB EEPROM, a 12-bit ADC2 with Capacitive Voltage Divider (CVD) support for advanced touch sensing, a 10-bit DAC, five 16-bit timers, two comparators, and a CAN FD module. The XLP (eXtreme Low Power) feature set keeps active current around 5 mA at 64 MHz and allows sleep currents in the nanoamp range, well suited for battery-backed industrial nodes.
The PIC18 (L)F25/26K83 family uses a 14-bit instruction width RISC core with a hardware multiplier, providing deterministic interrupt latency and C-compiler-friendly performance. The 28-pin SOIC footprint exposes two I/O ports (PORTB, PORTC), a full MSSP (SPI/I2C), two USARTs, and the CAN peripheral. Internal 32 MHz and 31 kHz oscillators reduce BOM cost and free two pins that older PIC18 devices reserved for crystals.
Typical applications include industrial automation nodes, CAN-connected sensor hubs, low-power remote controls, touch-sensing human-machine interfaces, and automotive body controllers running at 3.3 V. The 12-bit ADC2 with CVD enables robust capacitive buttons and sliders without external touch ICs. The XLP sleep modes extend battery life in IoT edge nodes that wake periodically to transmit on CAN.
When designing with this part, place a 100 nF decoupling capacitor on every VDD pin and keep the VDD/VSS traces short. For CAN bus applications, add a 120 ohm termination at each end of the bus and verify the CAN transceiver (e.g. MCP2561/ATA6560) shares the same logic-level threshold. When migrating from the PIC18F26K83, simply reduce VDD to 3.3 V; the LF device tolerates the same peripherals but at lower VDDmax.
This page synthesizes verified distributor pricing, same-family Microchip drop-in alternatives, comparison tables, and practical design notes - information that is not assembled in any single manufacturer document or distributor page.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF26K83T-I/SO — 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 PIC18LF26K83T-I/SO (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, ADC, Timers, CAN.
PIC18LF26K83-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F26K83T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF25K83T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF26K80T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF26K42T-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF26K83T-I/SO Tỷ lệ tối đa & tính chất điện
| Product Family | PIC18F K83 / PIC18LF K83 |
| Core | PIC 8-bit RISC (Harvard) |
| Instruction Width | 16-bit (14-bit opcode width) |
| Tần số xung maksimum | 64 MHz |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data SRAM | 4 KB |
| Data EEPROM | 1 KB |
| Supply Voltage (VDD) | 1.8 V to 3.6 V (LF variant) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial -I suffix) |
| Hộp | 28-pin SOIC (SO) wide body, 7.50 mm |
| I/O Pins | 25 |
| ADC | 12-bit ADC2 with Computation, CVD support |
| ADC Channels | Up to 24 channels |
| DAC | 1 x 10-bit DAC |
| Comparators | 2 |
| Timers | 5 x 16-bit / 8-bit configurable timers |
| UART / USART | 2 |
| SPI / I2C (MSSP) | 2 x MSSP (SPI or I2C) |
| CAN | 1 x CAN FD controller |
| Internal Oscillator | 32 MHz HF + 31 kHz LF |
| XLP (Low Power) | Yes (eXtreme Low Power) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18LF26K83T-I/SO
| Chân 1 | RE3/MCLR — Digital input / Master Clear (reset) input |
| Chân 2 | RA0 — Analog input / digital I/O |
| Chân 3 | RA1 — Analog input / digital I/O |
| Chân 4 | RA2 — Analog input / digital I/O |
| Chân 5 | RA3 — Analog input / digital I/O |
| Chân 6 | RA4 — Analog input / digital I/O |
| Chân 7 | RA5 — Analog input / digital I/O |
| Chân 8 | RA6 — Analog input / digital I/O |
| Chân 9 | RA7 — Analog input / digital I/O |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply voltage |
| Chân 12 | VSS — Ground reference |
| Chân 13 | RB0 — Digital I/O / analog input |
| Chân 14 | RB1 — Digital I/O / analog input |
| Chân 15 | RB2 — Digital I/O / analog input |
| Chân 16 | RB3 — Digital I/O / analog input |
| Chân 17 | RB4 — Digital I/O / analog input / SDA |
| Chân 18 | RB5 — Digital I/O / analog input / SCL |
| Chân 19 | RB6 — Digital I/O / ICSPCLK |
| Chân 20 | RB7 — Digital I/O / ICSPDAT |
| Chân 21 | RC0 — Digital I/O / analog input |
| Chân 22 | RC1 — Digital I/O / analog input |
| Chân 23 | RC2 — Digital I/O / analog input |
| Chân 24 | RC3 — Digital I/O / analog input |
| Chân 25 | RC4 — Digital I/O / analog input |
| Chân 26 | RC5 — Digital I/O / analog input |
| Chân 27 | RC6 — Digital I/O / CAN TX |
| Chân 28 | RC7 — Digital I/O / CAN RX |
Ứng dụng tiêu biểu
PIC18LF26K83T-I/SO phù hợp cho 7 Áp dụngs: Industrial CAN Sensor Nodes, Capacitive Touch HMI Controls, Automotive Body Control Modules (3.3 V subsystems), Battery-Powered IoT Edge Nodes, Low-Cost BLDC / Stepper Motor Control, Smart Energy / Sub-Metering Endpoints, Test and Measurement Handheld Instruments.
Industrial CAN Sensor Nodes
The PIC18LF26K83T-I/SO integrates a hardware CAN FD controller, 64 KB Flash, 4 KB RAM and a 12-bit ADC2 with 24 channels, all in a 28-SOIC footprint ideal for industrial sensor hubs. The LF variant's 1.8-3.6 V VDD range lets the MCU run directly from a 3.3 V LDO that also powers a CAN transceiver, reducing regulator complexity in DIN-rail or PLC backplane nodes. The XLP feature set cuts sleep current below 100 nA, enabling battery-backed nodes that wake periodically to broadcast sensor readings on CAN. Pair with the MCP2561 CAN transceiver and an external 120 ohm termination at each end of the bus for robust differential signalling.
Được đề xuất
Capacitive Touch HMI Controls
The PIC18LF26K83T-I/SO's 12-bit ADC2 with built-in Capacitive Voltage Divider (CVD) automates touch-button and slider scanning without an external touch IC, reducing BOM cost in appliance and consumer HMI panels. The 28-SOIC package exposes up to 24 ADC channels, more than enough for a 12-key keypad plus a slider. CIP peripherals like the CWG and SMT run autonomously, offloading LED PWM and debounce tasks from the core so the main loop services only button events. The XLP sleep mode lets battery-powered remotes last months on a single cell.
Được đề xuất
Automotive Body Control Modules (3.3 V subsystems)
The PIC18LF26K83T-I/SO operates across the automotive 12 V battery transients when paired with a 3.3 V LDO and TVS protection, making it suitable for interior body controllers, mirror adjust modules, and seat controllers. Hardware CAN FD on-chip eliminates an external bus controller, simplifying the BOM and improving EMC robustness. The 64 KB Flash holds a CANopen or J1939 lightweight stack, while the 4 KB RAM buffers diagnostic frames. Industrial -40 C to +85 C temperature grade suits under-dash and cabin placements; for under-hood use migrate to the AEC-Q100-qualified PIC18F26K83-Q1 derivative.
Được đề xuất
Battery-Powered IoT Edge Nodes
The PIC18LF26K83T-I/SO with XLP technology enters sleep at nanoamp-level current and wakes on a timer interrupt, making it a strong fit for battery-powered IoT edge nodes that transmit periodically. The 64 MHz core lets the node complete ADC sampling, light ciphering, and CAN or UART transmission in milliseconds before returning to sleep. The 28-SOIC footprint is easy to hand-solder for prototype runs and survives reflow profiles up to 260 C for volume manufacturing.
Được đề xuất
Low-Cost BLDC / Stepper Motor Control
The PIC18LF26K83T-I/SO has five 16-bit timers, two comparators and a 10-bit DAC, sufficient to drive a small BLDC or stepper motor via complementary PWM with current-mode protection. The CWG (Complementary Waveform Generator) and SMT (Signal Measurement Timer) CIPs handle dead-band insertion and back-EMF timing with zero core intervention, freeing CPU cycles for the higher-level motion profile. The 28-SOIC footprint keeps the driver board compact for small appliance fans and pumps.
Được đề xuất
Smart Energy / Sub-Metering Endpoints
The PIC18LF26K83T-I/SO's 12-bit ADC2 paired with the 10-bit DAC and a hardware multiplier supports single-phase energy metering algorithms with enough headroom for calibration tables in Flash. The CAN FD peripheral lets the meter report consumption frames to a sub-bus at high speed, while the UART handles optical or RS-485 legacy interfaces. Industrial temperature grade and XLP deep-sleep extend battery life in outage-tolerant metering endpoints. Pair with an isolated CAN transceiver for safety in 230 V meter designs.
Được đề xuất
Test and Measurement Handheld Instruments
The PIC18LF26K83T-I/SO pairs with an LCD display and keypad through SPI or I2C to form the heart of a portable test instrument. The 12-bit ADC2 with averaging supports accurate sensor readings, while the 64 KB Flash stores calibration constants and lookup tables. Industrial temperature grade and XLP sleep extend battery runtime during field use. The 28-SOIC package simplifies rework during prototype calibration cycles.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF26K83T-I/SO — 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 | PIC18LF26K83-I/SO | PIC18F26K83T-I/SO | PIC18LF25K83T-I/SO | PIC18LF26K80T-I/SO | PIC18LF26K42T-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 2 KB | 3.6 KB | 4 KB |
| VDD Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| CAN FD | Yes | Yes | Yes | Yes | No (CAN 2.0B only) | No |
| ADC2 CVD Touch | Yes | Yes | Yes | Yes | No | Yes |
| Max Clock | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
Bảo phân biệt quan trọng
- Integrated CAN FD controller (vsPIC18LF26K42T-I/SO)
- 12-bit ADC2 with CVD for capacitive touch (vsPIC18LF26K80T-I/SO)
- Low-voltage 1.8-3.6 V operation (vsPIC18F26K83T-I/SO)
- Pin-compatible upgrade path within Microchip portfolio (vsPIC18LF25K83T-I/SO)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor as close as possible to every VDD/VSS pair, with a bulk 10 uF tantalum or ceramic on the main 3.3 V rail. The PIC18LF26K83 has internal power-on reset and brown-out reset, but adding an external supervisory circuit (e.g. MCP1316) improves robustness in industrial CAN nodes that must survive 12 V automotive transients. Estimated: at 64 MHz the core draws ~5 mA; in XLP sleep it falls below 100 nA - use Sleep + RTCC wake-up for battery-backed sensor nodes.
When migrating code from the PIC18F26K83 (5 V) to the PIC18LF26K83 (3.6 V), do not exceed 3.6 V on any pin. Programming voltage on MCLR must also stay below VDD + 0.3 V; otherwise the internal clamp diodes can latch. For CAN bus designs, always include 120 ohm termination resistors at the bus ends and verify the MCP2561 or similar transceiver shares the same logic-level threshold. Common pitfall: leaving ICSPCLK/ICSPDAT (RB6/RB7) floating - they should have 10 kohm pull-ups to avoid accidental entry into debug mode.
Route the CAN TX/CAN RX pair (RC6/RC7) as a short differential pair to the transceiver, keeping trace length under 30 mm. Place a TVS diode such as PESD1CAN close to the bus connector to absorb ESD. The 28-SOIC land pattern allows easy hand-soldering and rework; reserve a 2 mm keep-out around the package for probe access during bench validation. Keep the crystal traces short if an external XTAL is used (the device supports internal 32 MHz and 31 kHz oscillators, so external crystals are optional).
Use a continuous ground plane under the MCU and route analog inputs (RA0-RA7, RB0-RB5) away from digital switching signals. The ADC2 reference voltage pin (VREF+) benefits from a 1 uF ceramic bypass plus a 10 nF NPO close to the pin. For CVD touch sensing, surround each touch pad with a ground hatch to improve coupling and noise immunity; Microchip application note AN1470 details the CVD layout rules.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial -40 C to +85 C temperature grade (I suffix). For automotive AEC-Q100, use the PIC18F26K83-E/Q1 or PIC18F26K83T-I/Q1 derivative instead. MSL level not provided in verified web data - mark as [DATA_NEEDED].
