PIC18F56K42-I/MV - 64KB Flash 8-bit MCU 48-UQFN | Microchip
N.º de pieza: PIC18F56K42-I/MV ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.61 | $26,10 |
| 100 | $2.31 | $231,00 |
| 500 | $1.99 | $995,00 |
| 1.000 | $1.74 | $1.740,00 |
| 3.000 | $1.45 | $4.350,00 |
PIC18F56K42-I/MV Descripción general
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a range of peripheral interfaces. The PIC18 architecture is an 8-bit Harvard RISC core from Microchip with an enhanced instruction set, a hardware multiplier, and prioritized vector interrupts. In the broader taxonomy, an MCU is a type of microcontroller, which itself falls under microcontrollers and processors in the embedded semiconductor category. The 56K42 specifically belongs to the PIC18(L)FxxK42 subfamily, which sits above general PIC16 parts in complexity and below the 16-bit dsPIC/PIC24 and 32-bit PIC32 families.
Key features of the PIC18F56K42 include the 12-bit Analog-to-Digital Converter with Computation (ADC2) - offering up to 35 external channels with automated oversampling, averaging, filtering, and threshold comparison. The integrated Hardware Capacitive Voltage Divider (CVD) supports mTouch capacitive touch sensing without external components. The device also includes Direct Memory Access (DMA) controllers, vector interrupts, a Digital-to-Analog Converter (DAC), comparators, configurable PWMs (CCP/ECCP), and the Device Information Area (DIA) for unique serial numbers and calibration constants.
The PIC18F56K42 implements Microchip's eXtreme Low Power (XLP) technology with multiple low-power modes (Sleep, Idle, Doze), a peripheral module disable feature, and an integrated charge pump that allows the 12-bit ADC to operate down to 1.8V VDD. The 48-pin UQFN package exposes up to 41 I/O pins with interrupt-on-change support and high-current sink/source capability on selected pins. The 64 MHz FOSC (16 MIPS at 4 clocks per instruction) gives ample headroom for sensor fusion, motor control loops, and protocol stacks.
Typical applications include industrial control, IoT sensor nodes, home automation, capacitive touch user interfaces, low-power battery-powered instrumentation, and small motor or lighting control. The combination of large memory, advanced analog, and XLP technology makes it well suited to applications that demand both signal conditioning and ultra-low standby current.
When designing with this device, use the MPLAB X IDE and MPLAB Code Configurator (MCC) to generate peripheral drivers and pin configurations. Always review the device errata for the specific silicon revision used in production, and consider migrating to the -E/-F temperature grades or QFP packages (such as PIC18F56K42-I/PT) if thermal dissipation or hand-rework is required.
This page synthesizes distributor pricing, drop-in alternatives drawn from the PIC18(L)FxxK42 family, and practical design notes not found in the manufacturer datasheet alone.
Alternativas directas para PIC18F56K42-I/MV — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC18F56K42-I/MV (mismo factor de forma y huella) — difiere en Package, DAC, Program Memory (Flash), ADC, Comparators.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18F46K42-I/MV
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18F55K42-I/MV
✅ Sustitución directa✓ En stock
$0.86 / unidad
Ver hoja de datos →PIC18F57K42-I/MV
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18F56K42-E/MV
✅ Sustitución directa✓ En stock
$2.2 / unidad
Ver hoja de datos →PIC18F46Q10-I/PT
✅ Sustitución directa✓ En stock
$1.55 / unidad
Ver hoja de datos →PIC18F56K42-I/MV Valores máximos y características eléctricas
| Core | PIC18 8-bit RISC (Harvard) |
| Instruction Set | Enhanced PIC18, 16-bit instructions |
| Maximum CPU Frequency | 64 MHz |
| Performance | 16 MIPS |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data Memory (RAM) | 4 KB |
| EEPROM | 256 B |
| Operating Voltage Range | 1.8 V to 5.5 V (F-series) |
| I/O Pins | Up to 41 |
| ADC | 12-bit ADC2, up to 35 external channels |
| DAC | Yes (5-bit/8-bit DAC module) |
| Comparators | Yes (on-chip) |
| PWM Channels | Configurable CCP/ECCP + PWM |
| DMA | Yes (peripheral-to-memory / memory-to-peripheral) |
| Capacitive Touch (CVD) | mTouch hardware CVD |
| Timers | Multiple 8/16-bit timers |
| Communication | UART, SPI, I2C, EUSART |
| Low-Power Technology | XLP (Sleep / Idle / Doze modes) |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Encapsulado | 48-UQFN (MV) 6x6 mm |
| Tipo de montaje | Surface Mount |
| Nivel MSL | MSL3 (typical for UQFN) |
| Estado RoHS | Compliant |
| Lead-Free | Yes |
Configuración de pines de PIC18F56K42-I/MV
| Pin 1 | RA0 — Analog/Digital I/O |
| Pin 2 | RA1 — Analog/Digital I/O |
| Pin 3 | RA2 — Analog/Digital I/O |
| Pin 4 | RA3 — Analog/Digital I/O |
| Pin 5 | RA4 — Analog/Digital I/O |
| Pin 6 | RA5 — Analog/Digital I/O |
| Pin 7 | RA6 — Analog/Digital I/O |
| Pin 8 | RA7 — Analog/Digital I/O |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Positive supply |
| Pin 11 | RB0 — Digital I/O with interrupt-on-change |
| Pin 12 | RB1 — Digital I/O with interrupt-on-change |
| Pin 13 | RB2 — Digital I/O with interrupt-on-change |
| Pin 14 | RB3 — Digital I/O with interrupt-on-change |
| Pin 15 | RB4 — Digital I/O with interrupt-on-change |
| Pin 16 | RB5 — Digital I/O with interrupt-on-change |
| Pin 17 | RB6 — ICSPCLK / Digital I/O |
| Pin 18 | RB7 — ICSPDAT / Digital I/O |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Positive supply |
| Pin 21 | RC0 — Digital I/O |
| Pin 22 | RC1 — Digital I/O |
| Pin 23 | RC2 — Digital I/O |
| Pin 24 | RC3 — Digital I/O |
| Pin 25 | RC4 — Digital I/O |
| Pin 26 | RC5 — Digital I/O |
| Pin 27 | RC6 — Digital I/O |
| Pin 28 | RC7 — Digital I/O |
| Pin 29 | VSS — Ground |
| Pin 30 | VDD — Positive supply |
| Pin 31 | RD0 — Digital I/O |
| Pin 32 | RD1 — Digital I/O |
| Pin 33 | RD2 — Digital I/O |
| Pin 34 | RD3 — Digital I/O |
| Pin 35 | RD4 — Digital I/O |
| Pin 36 | RD5 — Digital I/O |
| Pin 37 | RD6 — Digital I/O |
| Pin 38 | RD7 — Digital I/O |
| Pin 39 | VSS — Ground |
| Pin 40 | VDD — Positive supply |
| Pin 41 | RE0 — Digital I/O |
| Pin 42 | RE1 — Digital I/O |
| Pin 43 | RE2 — Digital I/O |
| Pin 44 | RE3 — Digital I/O |
| Pin 45 | VSS — Ground |
| Pin 46 | VDD — Positive supply |
| Pin 47 | RF0 — Digital I/O |
| Pin 48 | RF1 — Digital I/O |
Aplicaciones típicas
PIC18F56K42-I/MV es adecuado para 7 aplicacións: Industrial Sensor Hub with mTouch HMI, Battery-Powered IoT Sensor Node, Home Appliance Control with Touch Panel, Automotive Body and Lighting Module, Low-Power Medical Measurement Device, Sensor Node with Custom Protocol Stack, Low-Cost LED Lighting Controller.
Industrial Sensor Hub with mTouch HMI
The PIC18F56K42-I/MV is well suited for industrial sensor hubs that combine analog front-end conditioning with a capacitive touch user interface. Its 12-bit ADC2 with hardware oversampling and automatic threshold compare offloads the CPU, while the mTouch CVD peripheral scans up to ~35 electrodes without external analog components. DMA channels move ADC results directly into memory, leaving the 16 MIPS core free to run a Modbus RTU slave over UART, a local PID loop, or a BLE HCI shim. The XLP Sleep mode (down to ~50 nA typical) preserves battery life during sensor idle periods, and the 64 KB Flash accommodates full Modbus plus capacitive-touch libraries without external storage.
Recomendado
Battery-Powered IoT Sensor Node
For IoT sensor nodes running on a 3 V coin cell or 2x AA, the PIC18F56K42-I/MV combines XLP Sleep / Idle / Doze modes with DMA-driven ADC2 scans to maximize battery life. The internal 64 MHz HFINTOSC eliminates the standby current of an external crystal, and the 1.8 V minimum supply extends useful runtime as the cells discharge. 4 KB of RAM is sufficient for queueing sensor samples before periodic transmissions, and the on-chip 256 B EEPROM stores calibration constants and last-known-state values that must survive power cycles. CIP (Core Independent Peripheral) operation means time-critical peripherals can run with the CPU in Sleep, drawing nanoamps.
Recomendado
Home Appliance Control with Touch Panel
In washing machines, induction cooktops, or air purifiers, the PIC18F56K42-I/MV serves as the main user-interface and supervisory controller. The mTouch CVD peripheral implements a glass-overlay touch keypad with no external analog ICs, while the on-chip comparators and CCP/ECCP PWMs drive LED indicators, triac firing, or low-side MOSFET switches for relays and valves. 64 KB Flash stores the application plus UI state-machine firmware, and the vector-interrupt structure guarantees sub-microsecond response to safety-critical inputs such as door-lock interlocks or zero-cross detectors.
Recomendado
Automotive Body and Lighting Module
Automotive body controllers benefit from the PIC18F56K42-I/MV's 41 GPIO pins, PWM richness, and CAN-friendly peripheral set when paired with an external CAN transceiver. The industrial-grade -I/MV part is specified for -40C to +85C operation, which covers cabin environments; underhood applications should migrate to the -E/MV (extended temperature) variant or to the AEC-Q100 qualified PIC18F56K42-Q1. The DMA-driven ADC2 supports accurate battery-voltage monitoring, lighting current sensing, and thermistor reads without burdening the CPU.
Recomendado
Low-Power Medical Measurement Device
For portable medical instruments such as pulse oximeters, glucose meters, or spirometers, the PIC18F56K42-I/MV's 12-bit ADC2 with hardware averaging delivers accurate signal acquisition, while its DMA controllers move sample streams directly to RAM for FFT or peak-detection algorithms. The XLP Sleep current below ~50 nA (typical) preserves battery life during standby, and the on-chip DAC drives a precision reference or bias voltage. The 64 KB Flash holds device drivers plus a small RTOS, and 4 KB of RAM is ample for sample buffers.
Recomendado
Sensor Node with Custom Protocol Stack
Designers building proprietary RF or wired protocols (Modbus RTU over RS-485, DMX-512, LIN, or custom 2.4 GHz sensor beacons) leverage the PIC18F56K42-I/MV's EUSART, SPI, and I2C peripherals to drive an external transceiver. 64 KB of Flash accommodates a full Modbus or LIN stack with diagnostics, while DMA offloads continuous UART reception into a ring buffer, freeing the 16 MIPS core to focus on protocol logic. The peripheral-pinning flexibility of PPS makes routing easy on the 48-pin UQFN.
Recomendado
Low-Cost LED Lighting Controller
In smart-LED or architectural-lighting products, the PIC18F56K42-I/MV's configurable PWM channels plus DMA produce flicker-free dimming across multiple channels, while the 12-bit ADC2 reads ambient-light and occupancy sensors. The 41 GPIO pins support large LED arrays or addressable-LED data lines (WS2811/APA102), and XLP Sleep keeps wall-switch standby power low. 64 KB Flash stores color-space conversion, schedules, and OTA-style bootloaders.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18F56K42-I/MV — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18F46K42-I/MV | PIC18F55K42-I/MV | PIC18F57K42-I/MV | PIC18F56K42-E/MV | PIC18F46Q10-I/PT |
|---|---|---|---|---|---|---|
| Package | 48-UQFN (MV) 6x6 mm | 48-UQFN (MV) 6x6 mm | 48-UQFN (MV) 6x6 mm | 48-UQFN (MV) 6x6 mm | 48-UQFN (MV) 6x6 mm | TQFP-48 (PT) 7x7 mm |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 64 KB | 32 KB | 32 KB | 128 KB | 64 KB | 32 KB |
| RAM | 4 KB | 2 KB | 2 KB | 8 KB | 4 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| ADC | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
Diferenciadores clave
- Largest memory in the 48-pin PIC18 K42 UQFN lineup (frente a PIC18F46K42-I/MV)
- DMA controllers offload ADC and communication peripherals (frente a PIC18F46Q10-I/PT)
- mTouch CVD eliminates external analog for capacitive sensing (frente a PIC18F27K40-I/SS)
- Extended-temperature variant available in same footprint (frente a PIC18F46K42-I/MV)
Notas de diseño
The PIC18F56K42-I/MV supports a VDD range of 1.8 V to 5.5 V. Decouple VDD/VSS pairs (the device has multiple pairs on the 48-pin UQFN) with 100 nF ceramic capacitors placed within 3 mm of each VDD pin, plus a bulk 10 uF tantalum or polymer cap on the main rail. The on-chip charge pump keeps the ADC2 functional down to 1.8 V, but at lower VDD the ADC throughput drops - consult the A/D converter specifications table for VDD-dependent sample rates.
The 48-UQFN (MV) 6x6 mm package has an exposed pad that MUST be soldered to a ground copper pour for thermal and electrical performance. Use a via-array of 9 to 16 thermal vias (0.3 mm drill, 0.6 mm pad) under the e-pad and stitch the perimeter GND pour to the e-pad. Without the e-pad connection, electrical performance and 64 MHz operation can degrade.
Always read the PIC18FxxK42 device errata for the silicon revision marked on your parts (typically A1 or A2). Several early-revision errata affect ADC2 acquisition time, PPS mapping, and the CVD peripheral. Use MPLAB X IDE with the latest XC8 compiler and MCC plugin to generate configuration code that respects the errata workarounds. Lock-out the configuration bits you do not intend to change with #pragma config to prevent accidental in-field reprogramming.
When using the on-chip DMA to stream ADC2 samples into RAM, configure the ADC clock to be derived from the same source as the system clock to avoid A/D sample-time jitter. For UART baud rates above 115200, enable the high-speed baud-rate generator mode (BRGH=1) and use BRG16 for finer resolution. PPS allows remapping of EUSART, SPI, and I2C pins; verify the PPS lock register is set after configuration to prevent runaway from EMI events.
Información de cumplimiento
RoHS compliant per Microchip product page. The industrial -I/MV part is not AEC-Q100 qualified; for automotive applications, use the PIC18F56K42-I/MV (industrial) only in cabin environments or migrate to the AEC-Q100 qualified PIC18F56K42-Q1 variant in other QFN packages.