PIC18LF26K83T-I/MX - 64KB Flash, CAN, 12-bit ADC2 MCU | Microchip
MPN: PIC18LF26K83T-I/MX ✓ فعالPIC18LF26K83T-I/MX نمای کلی
An 8-bit microcontroller (MCU) is a programmable integrated circuit that processes data in 8-bit chunks and is widely used in embedded systems for control-oriented tasks. Within the broader semiconductor taxonomy, this part belongs to the hierarchy: PIC18 XLP -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor. The "LF" prefix denotes the low-voltage variant (1.8V-3.6V VDD), distinguishing it from the "F" 5V-compatible PIC18F26K83 sibling, while the "T" suffix indicates Tape and Reel packaging.
Key features include 64KB (32K x 16) Flash program memory, 4KB SRAM, 1KB EEPROM, a 12-bit ADC2 with up to 17 channels and CVD automation, an integrated CAN 2.0B module, multiple communication peripherals (I2C, SPI, UART with LIN), and the eXtreme Low-Power (XLP) technology for battery applications. The 28-UQFN package provides a compact 6x6 mm footprint.
The device uses an enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, supported by Microchip's MPLAB X IDE and XC8 compiler. ADC2 automates averaging, filtering, and oversampling to reduce CPU overhead for touch and sensor applications. The integrated CAN peripheral supports CAN 2.0B active with bit rates up to 1 Mbps, eliminating the need for external CAN transceivers' digital side.
Typical applications include automotive body and comfort electronics, industrial CAN node controllers, capacitive touch user interfaces, sensor signal conditioning nodes, and low-power battery IoT devices. The wide peripheral integration makes it well-suited for distributed control networks.
When designing with this device, allocate PCB area for the 6x6 mm UQFN's thermal pad which must be soldered for ground continuity and thermal dissipation. Plan CAN bus termination (120 ohm resistors) and ensure VDD decoupling uses 100 nF ceramics placed within 3 mm of the supply pins.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for engineers evaluating the PIC18LF26K83T-I/MX for embedded designs.
جایگزین‌های drop-in برای PIC18LF26K83T-I/MX — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC18LF26K83T-I/MX (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در ADC, Package, Program Memory (Flash), Core Architecture, DAC.
PIC18LF26K83-I/MX
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC18LF26K83T-I/ML
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC18F26K83T-I/MX
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF26K42-I/MX
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF25K83T-I/MX
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF26K83T-I/MX حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | PIC18 (8-bit Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data SRAM | 4 KB |
| EEPROM | 1 KB |
| Maximum CPU Speed | 64 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| ADC | 12-bit ADC2 with up to 17 channels |
| CAN Module | CAN 2.0B active, 1 Mbps |
| Communication Peripherals | 2x I2C, 2x SPI, 2x UART (with LIN) |
| Timers | 7 (16-bit/8-bit mix) |
| دمای کاری | -40C to +85C (Industrial "I") |
| بسته‌بندی | 28-pin UQFN (6x6 mm) |
| نوع نصب | Surface Mount |
| تعداد پایه | 28 |
| XLP (eXtreme Low Power) | Yes |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC18LF26K83T-I/MX
| پین 1 | RA0/AN0/C1IN0-/C2IN0-/UPDGRST — Port A bit 0 / ADC ch0 / comparator input / programming reset |
| پین 2 | RA1/AN1/C1IN1-/C2IN1-/ICSPCLK — Port A bit 1 / ADC ch1 / comparator input / ICD clock |
| پین 3 | RA2/AN2/C1IN0+/C2IN0+/VREF- — Port A bit 2 / ADC ch2 / comparator input / VREF- |
| پین 4 | RA3/AN3/C1IN1+/VREF+ — Port A bit 3 / ADC ch3 / comparator input / VREF+ |
| پین 5 | RA4/AN4/C1OUT/CCP5 — Port A bit 4 / ADC ch4 / comparator output / CCP5 |
| پین 6 | RA5/AN5/C2OUT/CCP4 — Port A bit 5 / ADC ch5 / comparator output / CCP4 |
| پین 7 | RA6/AN6 — Port A bit 6 / ADC ch6 |
| پین 8 | RA7/AN7 — Port A bit 7 / ADC ch7 |
| پین 9 | VSS — Ground reference |
| پین 10 | VDD — Positive supply voltage (1.8V to 3.6V) |
| پین 11 | RB0/AN8/CANTX0/CCP1 — Port B bit 0 / ADC ch8 / CAN TX / CCP1 |
| پین 12 | RB1/AN9/CANRX0/CCP2 — Port B bit 1 / ADC ch9 / CAN RX / CCP2 |
| پین 13 | RB2/AN10/CANTX1/CCP3 — Port B bit 2 / ADC ch10 / CAN TX alt / CCP3 |
| پین 14 | RB3/AN11/CANRX1 — Port B bit 3 / ADC ch11 / CAN RX alt |
| پین 15 | RB4/AN12 — Port B bit 4 / ADC ch12 |
| پین 16 | RB5/AN13 — Port B bit 5 / ADC ch13 |
| پین 17 | RB6/ICSPCLK/ICDCLK — Port B bit 6 / ICD clock |
| پین 18 | RB7/ICSPDAT/ICDDAT — Port B bit 7 / ICD data |
| پین 19 | VSS — Ground reference |
| پین 20 | VDD — Positive supply voltage |
| پین 21 | RC0/PWM2 — Port C bit 0 / PWM output |
| پین 22 | RC1/PWM3 — Port C bit 1 / PWM output |
| پین 23 | RC2/AN14/CCP6/PWM4 — Port C bit 2 / ADC ch14 / CCP6 / PWM |
| پین 24 | RC3/AN15/CCP7/PWM5 — Port C bit 3 / ADC ch15 / CCP7 / PWM |
| پین 25 | RC4/I2C1SDA — Port C bit 4 / I2C1 data |
| پین 26 | RC5/I2C1SCL — Port C bit 5 / I2C1 clock |
| پین 27 | RC6/UART1TX — Port C bit 6 / UART1 transmit |
| پین 28 | RC7/UART1RX — Port C bit 7 / UART1 receive |
کاربردهای معمول
PIC18LF26K83T-I/MX مناسب است برای 6 کاربردs: Automotive CAN Body/Comfort Networks, Capacitive Touch User Interfaces, Industrial Sensor Signal Conditioning Nodes, Battery-Powered IoT Edge Devices, Building Automation HVAC Controllers, Low-Cost Motor Control BLDC/PMSM Drivers.
Automotive CAN Body/Comfort Networks
The PIC18LF26K83T-I/MX fits automotive body and comfort networks because of its integrated CAN 2.0B active controller supporting bit rates up to 1 Mbps, alongside the industrial -40C to +85C operating range and 64KB Flash for CANopen/CAN FD lite stacks. Designers place it as a CAN node between the bus transceiver (e.g., MCP2551 or MCP2562) and sensor/actuator loads, using the on-chip CAN peripheral to handle frame filtering, masking, and acceptance filters without burdening the CPU. The trade-off versus 32-bit CAN MCUs is throughput ceiling; the K83 excels at cost-sensitive body modules like window lifters, seat controllers, and lighting nodes where message rates are below 500 fps and the 8-bit core is sufficient.
پیشنهادی
Capacitive Touch User Interfaces
The PIC18LF26K83T-I/MX is ideal for capacitive touch user interfaces thanks to its 12-bit ADC2 with Capacitive Voltage Divider (CVD) automation, which handles averaging, filtering, and oversampling internally to reduce firmware overhead per Microchip datasheet DS40001943G. The 17-channel ADC2 supports multi-button, slider, and proximity sensor scanning on a single MCU without an external touch IC, while the 64KB Flash accommodates Microchip's mTouch library and GUI state machines. Compared with dedicated touch ICs, the K83 offers GPIO reuse for LEDs and PWM backlight dimming on the same chip; designers must allocate guard rings around touch pads per AN1478.
پیشنهادی
Industrial Sensor Signal Conditioning Nodes
The PIC18LF26K83T-I/MX suits distributed industrial sensor nodes because its 12-bit ADC2 with 17 channels handles bridge sensors, RTDs, and 4-20 mA loops directly, while the 1.8-3.6V VDD range supports battery-backed loops. The 64KB Flash and 4KB SRAM let it run MODBUS RTU slave stacks, calibration tables, and linearization routines on-chip. The XLP technology delivers sleep currents under 1 uA with RTC wake, critical for 4-20 mA loop-powered 4-wire transmitters. Compared with 32-bit Cortex-M0 alternatives at similar price, the K83 trades raw CPU throughput for deterministic 8-bit interrupt latency and longer toolchain stability for industrial 10-15 year product lifecycles.
پیشنهادی
Battery-Powered IoT Edge Devices
The PIC18LF26K83T-I/MX is well-suited for battery-powered IoT edge devices due to its XLP (eXtreme Low Power) technology providing deep sleep currents below 100 nA with RTC wake, and the 1.8V minimum VDD supporting single-cell Li-ion or 2x AA alkaline chemistries directly. The integrated CAN or UART peripherals enable wired mesh topologies in industrial IoT deployments where wireless is unsuitable, and 64KB Flash accommodates TLS-lite or LoRaWAN-like proprietary stacks. Compared with Cortex-M0+ alternatives, the K83's 8-bit core delivers longer battery life on small-cell designs at the cost of cloud-protocol complexity ceiling.
پیشنهادی
Building Automation HVAC Controllers
The PIC18LF26K83T-I/MX fits HVAC damper, valve, and fan controller boards in building automation thanks to its multiple PWM channels, 12-bit ADC for temperature/humidity sensing, and CAN or RS-485 (via UART) for BACnet/Modbus trunk connectivity. The 4KB SRAM supports PID loop state plus scheduling tables, while the 64KB Flash accommodates BACnet MS/TP protocol stacks. Compared with 32-bit alternatives, the K83 offers lower BOM cost for sub-$50 thermostat and VAV box controllers where BOM dominates and CPU cycles are ample. Designers use the eXtreme Low Power modes to retain RTC scheduling across brownouts.
پیشنهادی
Low-Cost Motor Control BLDC/PMSM Drivers
The PIC18LF26K83T-I/MX is suitable for low-cost BLDC or PMSM motor control in fans, pumps, and small appliances thanks to its 7 timers providing PWM generation, input capture for sensorless BEMF zero-crossing, and 12-bit ADC for current sensing. The 64 MHz instruction rate supports 20 kHz PWM at moderate computational load for FOC lite or trapezoidal commutation algorithms. The integrated CAN enables daisy-chained multi-motor coordination in conveyor and robotics applications. Compared with dedicated motor-control MCUs like dsPIC33, the K83 lacks advanced DSP instructions but delivers lower cost for sub-100W applications.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC18LF26K83T-I/MX — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC18LF26K83-I/MX | PIC18LF26K83T-I/ML | PIC18F26K83T-I/MX | PIC18LF26K42-I/MX | PIC18LF25K83T-I/MX |
|---|---|---|---|---|---|---|
| Package | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB |
| CAN Peripheral | Yes (CAN 2.0B, 1 Mbps) | Yes | Yes | Yes | No | Yes |
| VDD Range | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 2.3V to 5.5V | 1.8V to 3.6V | 1.8V to 3.6V |
| ADC | 12-bit ADC2, 17 ch | 12-bit ADC2, 17 ch | 12-bit ADC2, 17 ch | 12-bit ADC2, 17 ch | 12-bit ADC2, 17 ch | 12-bit ADC2, 17 ch |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
تفاوت‌های کلیدی
- Integrated CAN 2.0B peripheral eliminates external CAN controller IC (در مقابلPIC18LF26K42-I/MX)
- 64KB Flash and 4KB SRAM versus smaller K25 family variants (در مقابلPIC18LF25K83T-I/MX)
- Low-voltage 1.8V minimum VDD for battery applications (در مقابلPIC18F26K83T-I/MX)
- 12-bit ADC2 with CVD automation simplifies touch sensing (در مقابلPIC18LF26J53-I/ML)
یادداشت‌های طراحی
Estimated: The 28-UQFN 6x6 mm package exposes a center thermal pad (EP) that MUST be soldered to a ground copper pour of at least the same footprint area. Place 100 nF X7R decoupling ceramic capacitors within 3 mm of each VDD pin (pin 10 and pin 20 on this package) plus a bulk 4.7 uF tantalum or ceramic at the package entry. Maintain a 4-wire Kelvin connection to GND for ADC reference accuracy. Stitching vias (0.3 mm drill, 0.5 mm pitch) around the EP perimeter improve thermal dissipation and reduce ground bounce during CAN transitions.
The PIC18LF26K83T-I/MX supports VDD from 1.8V to 3.6V; for stable ADC2 readings, ensure VDD ripple stays below 50 mVpp. Place a ferrite bead plus 10 uF + 100 nF Pi filter on the supply rail feeding the MCU when CAN bus nodes share power with switching converters. Use Microchip's MCP1700T-3302E/MB or similar low-Iq (1.6 uA) LDO for battery applications to preserve XLP sleep current budget below 100 nA.
For CAN bus nodes, route CANTX/CANRX differential pair (RC6/RC7 or RB0/RB1 alternate) as a 120 ohm impedance-controlled differential pair on the PCB, keeping stubs under 10 mm. Place the MCP2562 or similar CAN transceiver within 25 mm of the MCU CAN pins to minimize radiated emissions. The CAN bus requires 120 ohm termination resistors at each bus end; avoid stub lengths exceeding 1/10 of the signal rise time per CAN 2.0B ISO 11898-2 routing guidelines.
Do not exceed 64 MHz system clock with VDD below 2.7V - check the FOSC/VDD dependency in the Microchip datasheet DS40001943G electrical characteristics table. The MCLR pin (on this UQFN, internally bonded; use ICD reset via RB6/RB7) must NOT be left floating during in-circuit programming. For CVD touch sensing, route guard ring traces around touch pads to prevent water droplets from coupling across sensors - reference AN1478 mTouch design guidelines.
Estimated: The 28-UQFN package has theta_JA around 35-40 C/W on a 4-layer JEDEC test board with adequate thermal vias. At maximum 64 MHz operation and full peripheral activity, the device typically dissipates under 50 mW, well within the package's thermal envelope. For high-temperature (>70C ambient) deployments, ensure the EP solder pad connects to at least 100 mm^2 of inner-plane copper for heat spreading; no external heatsink is normally required.
اطلاعات انطباق
RoHS and REACH compliant per Microchip product page. Industrial -40C to +85C temperature grade; not AEC-Q100 qualified (automotive variants available with -E or -VAO suffixes).
