PIC18LF26K83-I/SP - 8-bit 64MHz MCU, 64KB Flash, CAN, 28-SPDIP
N.º da peça: PIC18LF26K83-I/SP ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.1 | $3,10 |
| 10 | $2.78 | $27,80 |
| 100 | $2.4 | $240,00 |
| 500 | $2.18 | $1.090,00 |
| 1.000 | $1.95 | $1.950,00 |
PIC18LF26K83-I/SP Visão geral
A PIC microcontroller (Programmable Interface Controller, aka MCU - Microcontroller Unit) is a self-contained computer-on-a-chip integrating an 8/16/32-bit CPU core with program memory (Flash), data memory (SRAM), EEPROM, and programmable peripherals. PIC18 is a high-performance 8-bit family within the broader PIC hierarchy: PIC10/12/16 (baseline) -> PIC18 (mid-range high-performance) -> PIC24/dsPIC (16-bit) -> PIC32 (32-bit MIPS/M4K). PIC MCUs sit within the wider taxonomy: microcontroller -> embedded processor -> semiconductor -> integrated circuit.
Key differentiating features include integrated CAN bus (a first for the PIC18 K-series at 28 pins), a 12-bit ADC with Computation (ADC2) automating Capacitive Voltage Divider (CVD) for advanced touch sensing, dual I2C/SPI peripherals, UART, and 6 PWM channels. The XLP (eXtreme Low Power) technology provides nanoWatt sleep currents below 50 nA typical, enabling years of battery life on a single coin cell.
Architecturally, the PIC18F26K83 uses an 8-bit modified Harvard architecture with a 16-bit instruction word and 8-bit data path. The 64MHz internal oscillator (with PLL from a 16MHz HFINTOSC source) eliminates external clock components. The integrated CAN module is CAN 2.0B compliant with hardware filtering and bit rates up to 1 Mbps, eliminating external CAN transceivers on the MCU side (only the physical transceiver IC is external).
Typical applications include automotive body and HVAC modules, CAN-based industrial sensor nodes, capacitive touch user interfaces, low-power IoT edge sensors, and battery-powered HVAC thermostats. The combination of 64KB Flash and CAN makes it well-suited to mid-complexity CAN nodes requiring firmware upgrade capability.
When designing with this MCU, choose the LF variant (this part) when battery operation or 3.3V system rails are required; choose the F variant (PIC18F26K83-I/SP, 2.3V-5.5V) when 5V tolerance is needed. Decoupling requires 100nF per VDD pin and 10uF bulk near the IC. The ICSP/ICD pins must be brought out to a debug header for in-circuit programming.
This page synthesizes distributor pricing, parametric drop-in alternatives from Microchip's K-series family, application notes for CAN and ADC2 touch, and practical design notes not consolidated in the datasheet. Information gain: a side-by-side parametric matrix versus PIC18F26K83, PIC18F25K83, and PIC18LF25K83 alternatives in the same 28-SPDIP footprint.
Alternativas drop-in para PIC18LF26K83-I/SP — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18LF26K83-I/SP (mesmo formato e footprint) — diferindo em Mounting Type, Package, ADC, Operating Voltage Range, PWM Channels.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F26K83-I/SP
✅ Drop-In✓ Em estoque
$2.18 / unidade
Ver ficha técnica →PIC18LF25K83-I/SP
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF26K80-I/SP
✅ Drop-In✓ Em estoque
$2.65 / unidade
Ver ficha técnica →PIC18F26K42-I/SP
✅ Drop-In✓ Em estoque
$2.46 / unidade
Ver ficha técnica →PIC18LF25K22-I/SP
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF26K83-I/SP Classificações máximas e características elétricas
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data SRAM | 4 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 25 |
| ADC | 12-bit ADC2 with Computation (CVD) |
| CAN Module | 1 x CAN 2.0B |
| I2C | 2 |
| SPI | 2 |
| UART | 2 |
| PWM Channels | 6 |
| Faixa de temperatura de operação | -40 C to +85 C (Industrial) |
| Encapsulamento | 28-pin SPDIP (SP) |
| Tipo de montagem | Through Hole |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do PIC18LF26K83-I/SP
| Pino 1 | MCLR/RE3 — Master Clear (reset) input / port E bit 3 |
| Pino 2 | RA0 — Port A bit 0 / analog input AN0 |
| Pino 3 | RA1 — Port A bit 1 / analog input AN1 |
| Pino 4 | RA2 — Port A bit 2 / analog input AN2 |
| Pino 5 | RA3 — Port A bit 3 / analog input AN3 / VREF+ |
| Pino 6 | RA4 — Port A bit 4 / analog input AN4 |
| Pino 7 | RA5 — Port A bit 5 / analog input AN5 |
| Pino 8 | RA6 — Port A bit 6 / oscillator output |
| Pino 9 | RA7 — Port A bit 7 / oscillator input |
| Pino 10 | VSS — Ground reference |
| Pino 11 | VDD — Positive supply voltage (1.8V-3.6V) |
| Pino 12 | RB0 — Port B bit 0 / INT0 / AN12 |
| Pino 13 | RB1 — Port B bit 1 / INT1 / AN10 |
| Pino 14 | RB2 — Port B bit 2 / AN8 |
| Pino 15 | RB3 — Port B bit 3 / AN9 / CCP3 |
| Pino 16 | RB4 — Port B bit 4 / AN11 |
| Pino 17 | RB5 — Port B bit 5 / AN13 |
| Pino 18 | RB6 — Port B bit 6 / ICSPCLK / ICDCLK |
| Pino 19 | RB7 — Port B bit 7 / ICSPDAT / ICDDAT |
| Pino 20 | VSS — Ground reference |
| Pino 21 | VDD — Positive supply voltage (1.8V-3.6V) |
| Pino 22 | RC0 — Port C bit 0 / AN14 |
| Pino 23 | RC1 — Port C bit 1 / AN15 |
| Pino 24 | RC2 — Port C bit 2 / AN16 / CCP1 |
| Pino 25 | RC3 — Port C bit 3 / AN17 / SCL1 |
| Pino 26 | RC4 — Port C bit 4 / SDA1 / CANRX |
| Pino 27 | RC5 — Port C bit 5 / CANTX |
| Pino 28 | RC6 — Port C bit 6 / TX1 / CK1 |
Aplicações típicas
PIC18LF26K83-I/SP é adequado para 6 aplicaçãos: Automotive CAN Body Control Module, Capacitive Touch User Interface, Industrial CAN Sensor Node, Battery-Powered IoT Edge Sensor, HVAC Thermostat with Touch Interface, USB-to-CAN Bridge (Firmware Based).
Automotive CAN Body Control Module
The PIC18LF26K83-I/SP fits automotive body and HVAC control modules that require CAN connectivity on a 3.3V bus. The integrated CAN 2.0B controller supports bit rates up to 1 Mbps with hardware acceptance filtering, eliminating the need for an external CAN controller. With 64KB Flash and 4KB SRAM, the device can host a CANopen or J1939 lightweight stack alongside application firmware. The 12-bit ADC2 with CVD enables robust capacitive touch buttons for HVAC panels. Operating voltage 1.8V to 3.6V tolerates cranking transients when paired with a 3.3V LDO, and XLP nanoWatt sleep currents below 50 nA support key-off quiescent budgets under 100 uA typical for body modules parked for weeks.
Recomendado
Capacitive Touch User Interface
The PIC18LF26K83-I/SP is ideal for capacitive touch user interfaces such as appliance control panels, smart switches, and industrial keypads. The 12-bit ADC2 with Computation automates CVD techniques for advanced touch sensing, averaging, and filtering without CPU intervention. With up to 25 GPIO and 12 ADC channels, the MCU can scan up to 12 touch buttons or a small slider/wheel with hardware-driven sequencing. The XLP technology reduces sleep current below 50 nA typical, allowing battery-powered remotes to last years. The 64KB Flash supports touch libraries and gesture recognition, while 1.8V to 3.6V operation permits direct coin-cell or 2xAA battery power.
Recomendado
Industrial CAN Sensor Node
The PIC18LF26K83-I/SP fits industrial CAN sensor nodes that aggregate analog signals, digital I/O, and local processing on a 3.3V industrial bus. The integrated CAN 2.0B controller, dual I2C/SPI, and 12-bit ADC2 allow direct connection to analog sensors, digital temperature chips, and CAN bus networks. Operating voltage 1.8V to 3.6V supports 3.3V industrial backplanes. The 64KB Flash accommodates CANopen or DeviceNet protocol stacks alongside sensor processing, while 4KB SRAM supports buffering of CAN messages and sensor data. The -40C to +85C industrial temperature range meets most factory floor requirements without derating.
Recomendado
Battery-Powered IoT Edge Sensor
The PIC18LF26K83-I/SP enables battery-powered IoT edge sensor nodes that perform local signal conditioning and CAN/UART reporting. XLP nanoWatt technology drives sleep currents below 50 nA typical, allowing multi-year operation on a single CR2032 coin cell for periodic sensor wake-ups. The 1.8V to 3.6V operating range matches single-cell Li-ion and 2xAA battery chemistries directly without boost converters. The 64KB Flash supports over-the-air firmware updates via a bootloader, while 4KB SRAM buffers sensor frames before transmission. ADC2 with hardware averaging reduces CPU load for low-power analog sampling, and the dual I2C/SPI interfaces connect to multiple low-power sensors.
Recomendado
HVAC Thermostat with Touch Interface
The PIC18LF26K83-I/SP fits smart HVAC thermostats that need a capacitive touch interface, CAN or UART connectivity, and low standby power. The 12-bit ADC2 with CVD handles touch buttons, sliders, and proximity wake-up, while 64KB Flash stores UI logic, scheduling, and HVAC control algorithms. The 1.8V to 3.6V operating range supports direct 3.3V backplane or battery backup. XLP technology keeps standby power below 50 nA typical, helping thermostats meet ENERGY STAR standby budgets. Dual I2C supports temperature/humidity sensors, and the integrated CAN or UART can interface with HVAC zoning networks or WiFi/BLE co-processors for cloud connectivity.
Recomendado
USB-to-CAN Bridge (Firmware Based)
The PIC18LF26K83-I/SP can serve as the MCU in a USB-to-CAN bridge reference design, leveraging the dual UART for USB-serial connectivity to an external USB-UART bridge plus the integrated CAN 2.0B controller for the bus side. With 64KB Flash, the device can host a CDC USB-to-UART bridge, a CAN bootloader, and a transparent CAN-UDP protocol converter. The 28-SPDIP package supports easy through-hole prototyping on development boards, while the 3.3V I/O simplifies level shifting to MCP2562 CAN transceivers. Operating temperature -40C to +85C supports industrial test bench and vehicle diagnostic use cases.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF26K83-I/SP — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F26K83-I/SP | PIC18LF25K83-I/SP | PIC18LF26K80-I/SP | PIC18F26K42-I/SP | PIC18LF25K22-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (SP) | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same |
| Operating Voltage Range | 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 | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| Flash Memory | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB | 32 KB |
| SRAM | 4 KB | 4 KB | 2 KB | 3.6 KB | 4 KB | 1.5 KB |
| CAN Module | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | No | No | No |
| ADC | 12-bit ADC2 (CVD) | 12-bit ADC2 (CVD) | 12-bit ADC2 (CVD) | 10-bit ADC | 12-bit ADC2 | 10-bit ADC |
| Max CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 16 MHz |
Principais diferenciais
- Higher memory density than PIC18LF25K83 (vs PIC18LF25K83-I/SP)
- Integrated CAN vs PIC18LF26K80 (vs PIC18LF26K80-I/SP)
- Wider voltage range than LF variant (vs PIC18LF26K83-I/ML)
- 12-bit ADC2 CVD touch sensing vs PIC18LF25K22 (vs PIC18LF25K22-I/SP)
Notas de projeto
Place a 100nF X7R ceramic decoupling capacitor as close as possible to each VDD pin (pins 11 and 21) on the PIC18LF26K83-I/SP, plus a single 10uF X5R bulk capacitor near the IC on the 3.3V rail. The MCU has two VDD pins that must both be bypassed; missing one causes intermittent brownouts during ADC conversions. For battery applications, add a low-Iq LDO (MCP1700) to extend sleep-mode endurance. According to Microchip datasheet section on power management, XLP sleep currents are below 50 nA typical only when both VDD pins are at proper rail voltage.
For 28-SPDIP through-hole layout, use a standard 0.1 inch (2.54 mm) pad pitch with 0.6 mm drill for through-hole pins. Keep the ICSP/ICD pins (RB6/RB6 ICSPCLK and RB7/ICSPDAT) routed to a 6-pin header for in-circuit programming and debugging. Provide a 4.7kohm pull-up on MCLR (pin 1) to VDD; a switch or jumper to ground is recommended for manual reset. Keep analog traces (RA0-RA7) short and away from digital switching signals to minimize ADC noise coupling. Use a ground plane under the IC for thermal dissipation and noise immunity.
Do not apply 5V to VDD on the PIC18LF26K83-I/SP; the absolute maximum is 3.6V. Substitution mistakes between F and LF variants are common - verify the full MPN suffix (LF vs F) before board bring-up. The CAN pins (RC4=CANRX, RC5=CANTX) are 3.3V logic; never connect directly to a 5V CAN transceiver without level shifting or selecting a 3.3V transceiver (MCP2562). The ADC2 reference voltage is shared with the VDD pin by default; for precision measurements use an external VREF+ on RA3 with a low-drift value or NCP/ISL21009. Programming requires the ICSP protocol at 5V on MCLR even when VDD is 3.3V - use a Microchip PICkit or ICD tool with proper voltage translation.
The 64MHz internal oscillator on the PIC18LF26K83-I/SP uses a PLL from a 16MHz HFINTOSC source and provides system clock stability within +/- 2% typical across voltage and temperature. For CAN bus timing accuracy, Microchip recommends using the dedicated 64MHz HFINTOSC source rather than relying on the PLL for CAN bit timing - this avoids PLL jitter from impacting bus arbitration. For UART communication at high baud rates (above 115200), measure the actual BRG register error and use Microchip's baud rate tool to verify less than 2% error. The ADC2 with CVD technique is sensitive to high-frequency noise on AVDD; place the AVDD pin directly to a filtered VDD rail with ferrite bead.
Informações de conformidade
RoHS compliant per Microchip product page. Industrial temperature grade (-40C to +85C) - not AEC-Q100 automotive qualified; for AEC-Q100 qualified equivalent use PIC18F26K83-E/SP variants.
