PIC18LF56K42T-I/MV - 8-Bit 64MHz 64KB Flash XLP MCU | Microchip
MPN: PIC18LF56K42T-I/MV ✓ فعالPIC18LF56K42T-I/MV نمای کلی
What is a microcontroller? A microcontroller (MCU) is a single-chip computer integrating CPU, non-volatile program memory (Flash), volatile data memory (RAM), EEPROM, and a rich set of peripherals (ADC, timers, communication ports). Within Microchip's taxonomy, this part belongs to PIC18F/LF XLP 18K family -> 8-bit PIC MCU -> PIC microcontroller -> microcontroller -> embedded semiconductor. The XLP (eXtreme Low Power) designation targets battery-powered and energy-harvesting designs where nanoWatt sleep currents and fast wake-up times are critical.
Key features include 44 user I/O pins, 12-bit ADC2 with computation, two 8-bit DACs, three comparators with 5-bit DAC references, 8-bit DMA controller, vectored interrupts with peripheral interrupt controllers, configurable logic cells (CLC), Complementary Waveform Generator (CWG), multiple PWM/SCCP/MCCP channels, and rich serial peripherals (UART, SPI, I2C). The 64 MHz internal oscillator and 4x PLL deliver 16 MIPS instruction throughput while the XLP sleep mode can drop quiescent current below 100 nA.
The K42 architecture adds hardware-accelerated math (8x8 hardware multiplier, single-cycle 16-bit math), zero-cross detection for triac control, and Direct Memory Access that lets peripherals move data without CPU intervention - reducing active-mode time and overall system power.
Typical applications include IoT sensor nodes, home appliances (washing machine, induction cooktop, white goods UI), portable medical devices, BLDC motor control, LED lighting controllers, and battery-powered instrumentation. Designers favor the LF variant when the supply rail is 2x AA/AAA or a Li-ion cell under boost regulation.
When designing with this MCU, allocate one decoupling 100 nF cap per VDD pin and a 1 uF bulk cap near the exposed pad; route AVSS/AVDD separately for clean ADC reference. Use the DMA for periodic sensor reads so the core can stay in sleep - that is where XLP delivers its largest energy savings.
جایگزین‌های drop-in برای PIC18LF56K42T-I/MV — 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 PIC18LF56K42T-I/MV (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Program Memory (Flash), ADC, DMA Channels, Family.
PIC18F56K42T-I/MV
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF55K42T-I/MV
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF47K42-I/MV
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF56K42-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF56K42T-I/MV حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core | PIC18 8-bit |
| Family | PIC18F XLP 18K |
| Instruction Set | PIC18 RISC |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data RAM | 4 KB |
| EEPROM | 256 B |
| Maximum CPU Frequency | 64 MHz |
| MIPS Performance | 16 MIPS |
| Operating Voltage | 1.8 V to 3.6 V |
| I/O Pins | 44 |
| ADC | 12-bit ADC2 (computation) |
| DAC | 2 x 8-bit |
| Comparators | 3 with 5-bit DAC reference |
| DMA Channels | 8-bit DMA |
| بسته‌بندی | 48-UQFN (6x6 mm) with exposed pad |
| دمای کاری | -40C to +85C (Industrial) |
| نوع نصب | Surface Mount |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC18LF56K42T-I/MV
| پین 1 | RA0/ANA0 — Port A bit 0 / Analog input 0 |
| پین 2 | RA1/ANA1 — Port A bit 1 / Analog input 1 |
| پین 3 | RA2/ANA2 — Port A bit 2 / Analog input 2 |
| پین 4 | RA3/ANA3 — Port A bit 3 / Analog input 3 |
| پین 5 | RA4/ANA4 — Port A bit 4 / Analog input 4 |
| پین 6 | RA5/ANA5 — Port A bit 5 / Analog input 5 |
| پین 7 | RA6/ANA6 — Port A bit 6 / Analog input 6 |
| پین 8 | RA7/ANA7 — Port A bit 7 / Analog input 7 |
| پین 9 | RB0/ANB0 — Port B bit 0 / Analog input B0 |
| پین 10 | RB1/ANB1 — Port B bit 1 / Analog input B1 |
| پین 11 | VDD — Power supply (1.8-3.6 V) |
| پین 12 | VSS — Ground |
| پین 13 | RB2/ANB2 — Port B bit 2 / Analog input B2 |
| پین 14 | RB3/ANB3 — Port B bit 3 / Analog input B3 |
| پین 15 | RB4/ANB4 — Port B bit 4 / Analog input B4 |
| پین 16 | RB5/ANB5 — Port B bit 5 / Analog input B5 |
| پین 17 | RB6/ANB6 — Port B bit 6 / Analog input B6 / ICSPCLK |
| پین 18 | RB7/ANB7 — Port B bit 7 / Analog input B7 / ICSPDAT |
| پین 19 | RC0 — Port C bit 0 |
| پین 20 | RC1 — Port C bit 1 |
| پین 21 | RC2 — Port C bit 2 |
| پین 22 | RC3 — Port C bit 3 |
| پین 23 | RC4 — Port C bit 4 |
| پین 24 | RC5 — Port C bit 5 |
| پین 25 | RC6 — Port C bit 6 / TX |
| پین 26 | RC7 — Port C bit 7 / RX |
| پین 27 | VSS — Ground |
| پین 28 | VDD — Power supply (1.8-3.6 V) |
| پین 29 | RD0 — Port D bit 0 |
| پین 30 | RD1 — Port D bit 1 |
| پین 31 | RD2 — Port D bit 2 |
| پین 32 | RD3 — Port D bit 3 |
| پین 33 | RD4 — Port D bit 4 |
| پین 34 | RD5 — Port D bit 5 |
| پین 35 | RD6 — Port D bit 6 |
| پین 36 | RD7 — Port D bit 7 |
| پین 37 | RE0 — Port E bit 0 |
| پین 38 | RE1 — Port E bit 1 |
| پین 39 | RE2 — Port E bit 2 |
| پین 40 | RE3 — Port E bit 3 |
| پین 41 | RF0 — Port F bit 0 |
| پین 42 | RF1 — Port F bit 1 |
| پین 43 | RF2 — Port F bit 2 |
| پین 44 | RF3 — Port F bit 3 |
| پین 45 | RF4 — Port F bit 4 |
| پین 46 | RF5 — Port F bit 5 |
| پین 47 | VSS — Ground |
| پین 48 | VDD — Power supply (1.8-3.6 V) |
کاربردهای معمول
PIC18LF56K42T-I/MV مناسب است برای 6 کاربردs: IoT Sensor Node, Home Appliance Control (White Goods), Portable Medical Device, BLDC / FOC Motor Control, LED Lighting Controller, Battery-Powered Instrumentation.
IoT Sensor Node
The PIC18LF56K42T-I/MV suits battery-powered IoT sensor nodes because its XLP nanoWatt technology delivers sub-100 nA sleep current and the 12-bit ADC2 with computation supports hardware-averaged sensor reads while the core stays asleep. Direct 1.8 V to 3.6 V operation eliminates the boost converter normally required for 2x AA cells, cutting BOM cost. Hardware DMA moves sensor data without waking the CPU, extending coin-cell life to multiple years in typical wake-and-transmit duty cycles.
پیشنهادی
Home Appliance Control (White Goods)
Home appliances such as induction cooktops, washing machines and dishwasher HMIs use the PIC18LF56K42T-I/MV for its 12-bit ADC2 with zero-cross detection, complementary waveform generator and three comparators with DAC references. The CWG and PWM/SCCP/MCCP channels drive IGBT/MOSFET bridges for triac or zero-voltage-switched heater control. 64 KB Flash is ample for capacitive-touch UI libraries plus motor-control state machines.
پیشنهادی
Portable Medical Device
Portable medical devices including pulse oximeters, glucose meters and handheld spirometers choose the PIC18LF56K42T-I/MV because the 12-bit ADC2 with oversampling and hardware averaging achieves clinical-grade signal integrity, while the XLP sleep current keeps the device within IEC 60601 battery-life budgets. Hardware DMA and peripheral trigger let the MCU wake only on timer or comparator events - critical for patient-safety watchdogs and low-power alarms.
پیشنهادی
BLDC / FOC Motor Control
BLDC and FOC motor control for fans, pumps and small drones use the PIC18LF56K42T-I/MV because its Complementary Waveform Generator and multiple PWM channels provide center-aligned switching with dead-band control for 3-phase bridges. The 64 MHz / 16 MIPS core runs sensorless FOC algorithms in real time while the zero-cross detection hardware accelerates back-EMF commutation, eliminating dedicated motor-control ICs in cost-sensitive designs.
پیشنهادی
LED Lighting Controller
LED lighting controllers and commercial luminaires embed the PIC18LF56K42T-I/MV because the 12-bit ADC reads ambient-light and supply-current sense signals, while the high-resolution PWM/MCCP channels drive constant-current LED strings at dimming ratios below 0.1%. The XLP sleep mode keeps standby power below 0.5 W, supporting Energy Star and EU Ecodesign standby limits in connected luminaires.
پیشنهادی
Battery-Powered Instrumentation
Battery-powered instrumentation including handheld multimeters, dataloggers and field meters leverage the PIC18LF56K42T-I/MV's 1.8 V to 3.6 V supply, XLP sleep current and 12-bit ADC2 with hardware accumulation to extend measurement uptime per battery. The 44 I/O pins drive segmented LCDs through peripheral-managed charge pumps, and the UART/SPI/I2C peripherals communicate with Bluetooth or USB-C modules for field connectivity.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC18LF56K42T-I/MV — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC18F56K42T-I/MV | PIC18LF55K42T-I/MV | PIC18LF47K42-I/MV | PIC18LF56K42-I/PT |
|---|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm) | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-TQFP (7x7 mm) - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 64 KB | 64 KB | 32 KB | 128 KB | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 8 KB | 4 KB |
| Operating Voltage | 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 |
| Max CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| I/O Pins | 44 | 44 | 44 | 36 | 44 |
| ADC | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 |
| Unit Price (qty 1) | $2.28 | $2.32 | $2.05 | $2.85 | $2.34 |
تفاوت‌های کلیدی
- Lowest minimum VDD in 48-UQFN K42 family (در مقابلPIC18F56K42T-I/MV)
- Largest Flash in LF-family 48-UQFN line (در مقابلPIC18LF55K42T-I/MV)
- More I/O pins than the 40-pin K42 sibling (در مقابلPIC18LF47K42-I/MV)
یادداشت‌های طراحی
Place a 100 nF decoupling capacitor on each VDD pin (11, 28, 48) within 2 mm of the pad to suppress transient switching current. Add a bulk 1 uF to 10 uF ceramic on the supply rail near the exposed thermal pad. For the analog ADC reference, place the AVSS/AVDD filter capacitor at the dedicated analog pin to prevent ADC reference ripple coupling into conversion results. Note: the LF variant is designed for 1.8 V to 3.6 V only; voltages above 3.6 V will damage the part.
The 48-UQFN (6x6 mm) package requires a continuous exposed pad (EP) beneath the die for thermal and electrical ground connection. Stencil the EP with multiple apertures (typically 4-6 small openings totaling 50-70% coverage) to ensure uniform solder void distribution. Avoid placing vias-in-pad for the EP unless they are tented/capped - exposed vias will wick solder and starve the central ground connection.
The UPDI programming pin shares an I/O on PORTB (RB7) and requires a 4.7 kohm pull-up to VDD for reliable in-circuit programming; without it the debugger will fail to assert the high-voltage sequence. Do not use the LF variant on a 5 V rail - the VDD max is 3.6 V. When migrating code from PIC18F56K42 to PIC18LF56K42, verify all ADC references and digital thresholds since the internal FVR scales with VDD on the LF variant differently than the F-variant.
اطلاعات انطباق
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade; AEC-Q100 qualified variants available separately in the PIC18F56K42 family.
