PIC18F56K42T-I/MV - 8-Bit 64MHz 64KB Flash XLP MCU | Microchip
N.º de pieza: PIC18F56K42T-I/MV ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.42 | $3,42 |
| 10 | $3.1 | $31,00 |
| 100 | $2.78 | $278,00 |
| 500 | $2.49 | $1.245,00 |
| 1.000 | $2.21 | $2.210,00 |
| 3.300 | $1.95 | $6.435,00 |
PIC18F56K42T-I/MV Descripción general
An 8-bit PIC microcontroller (MCU) is a single-chip computer based on Microchip's proprietary Harvard architecture that separates program and data memory for deterministic instruction execution, with the K42 family positioned in the ultra-low-power XLP segment between the smaller K20 and K40 predecessors and the newer Q-series successors. In the broader hierarchy: PIC18F -> 8-bit PIC -> PIC MCU -> microcontroller -> embedded system -> semiconductor IC. The K42 family spans 28/40/48-pin packages, allowing the same firmware and development tools to scale from compact sensor nodes to feature-rich control boards.
Differentiating features of the PIC18F56K42 include a 12-bit ADC2 (Analog-to-Digital Converter with Computation) with up to 35 external channels and an integrated charge pump, a hardware Capacitive Voltage Divider (CVD) for mTouch touch sensing, four 16-bit timers with built-in PWM, two USART, two SPI, two I2C and up to 36 interrupt sources. The device also integrates a 32-level hardware CRC, a Direct Memory Access (DMA) controller with 4 channels, a Windowed Watchdog Timer (WWDT) and a Vectored Interrupt module with a hardware Interrupt-on-Change (IOC) for low-latency GPIO response.
The architecture combines a modified 8-bit data path with a 16-bit instruction word, providing C-compiler-friendly orthogonal addressing while retaining deterministic real-time behavior. The XLP nanoWatt technology achieves typical sleep currents below 50 nA with RAM retention, and a power-managed idle/doze mode that lets peripherals run while the CPU is gated. Charge-pump-assisted ADC2 operation allows analog conversion down to 1.8 V supply, simplifying battery-monitor designs and low-battery warning thresholds.
Typical applications include IoT edge nodes, home-automation and smart-home hubs, low-power wireless sensor platforms (LoRa/BLE host MCUs), consumer appliances with capacitive touch HMIs, automotive body and interior modules, and industrial control boards requiring deterministic 8-bit GPIO-driven control. Designers typically select this device when they need deterministic interrupt response, mature MPLAB X IDE support, and a pin migration path within the same K42 family.
When laying out the PCB, treat the central UQFN exposed pad as the primary thermal and electrical ground path - solder it directly to a continuous ground pour with thermal vias for thermal resistance below 30 C/W. Use the MPLAB Code Configurator (MCC) to generate CIP setup, and always include a 0.1 uF decoupling capacitor within 3 mm of each VDD pin pair to minimize switching noise on the analog rails.
This page synthesizes the manufacturer datasheet, distributor pricing tiers, drop-in K42-family alternatives and practical design notes to give the engineer a single, citable reference that distributor product pages do not provide.
Alternativas directas para PIC18F56K42T-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 PIC18F56K42T-I/MV (mismo factor de forma y huella) — difiere en Package, ADC, Communication, Comparators, Program Memory (Flash).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18F55K42T-I/MV
✅ Sustitución directa✓ En stock
$1.65 / unidad
Ver hoja de datos →PIC18F57K42T-I/MV
✅ Sustitución directa✓ En stock
$2.45 / unidad
Ver hoja de datos →PIC18F56K42-I/MV
✅ Sustitución directa✓ En stock
$1.45 / unidad
Ver hoja de datos →PIC18F47K40T-I/MV
✅ Sustitución directa✓ En stock
$2.51 / unidad
Ver hoja de datos →PIC18F47Q43T-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18F56K42T-I/MV Valores máximos y características eléctricas
| Architecture | PIC18F 8-bit Harvard RISC |
| Core | Enhanced mid-range 8-bit PIC |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data Memory (SRAM) | 4 KB |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Temperatura de funcionamiento | -40C to +85C (industrial) |
| ADC2 | 12-bit, up to 35 channels, with charge pump |
| Timers | 4 x 16-bit with hardware PWM |
| Communication | 2x USART, 2x SPI, 2x I2C |
| DMA Channels | 4 |
| Capacitive Touch | CVD hardware peripheral |
| Encapsulado | 48-UQFN (6x6 mm) with exposed pad (MV) |
| Tipo de montaje | Surface Mount |
| Packaging | Tape and Reel (T-suffix) |
| Low-Power Technology | XLP nanoWatt |
| CRC Engine | 32-bit hardware CRC |
| Watchdog | Windowed WDT (WWDT) |
| Estado RoHS | Compliant |
Configuración de pines de PIC18F56K42T-I/MV
| Pin 1 | RA0 — PORTA bit 0 / ADC2 channel |
| Pin 2 | RA1 — PORTA bit 1 / ADC2 channel |
| Pin 3 | RA2 — PORTA bit 2 / ADC2 channel |
| Pin 4 | RA3 — PORTA bit 3 / ADC2 channel |
| Pin 5 | RA4 — PORTA bit 4 / ADC2 channel |
| Pin 6 | RA5 — PORTA bit 5 / ADC2 channel |
| Pin 7 | RA6 — PORTA bit 6 / ADC2 channel |
| Pin 8 | RA7 — PORTA bit 7 / ADC2 channel |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Pin 11 | RB0 — PORTB bit 0 / IOC interrupt |
| Pin 12 | RB1 — PORTB bit 1 / IOC interrupt |
| Pin 13 | RB2 — PORTB bit 2 / IOC interrupt |
| Pin 14 | RB3 — PORTB bit 3 / IOC interrupt |
| Pin 15 | RB4 — PORTB bit 4 / IOC interrupt |
| Pin 16 | RB5 — PORTB bit 5 / IOC interrupt |
| Pin 17 | RB6 — PORTB bit 6 / IOC / PGC |
| Pin 18 | RB7 — PORTB bit 7 / IOC / PGD |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RC0 — PORTC bit 0 |
| Pin 22 | RC1 — PORTC bit 1 |
| Pin 23 | RC2 — PORTC bit 2 |
| Pin 24 | RC3 — PORTC bit 3 |
| Pin 25 | RC4 — PORTC bit 4 |
| Pin 26 | RC5 — PORTC bit 5 |
| Pin 27 | RC6 — PORTC bit 6 / TX |
| Pin 28 | RC7 — PORTC bit 7 / RX |
| Pin 29 | VSS — Ground reference |
| Pin 30 | VDD — Positive supply voltage |
| Pin 31 | RD0 — PORTD bit 0 |
| Pin 32 | RD1 — PORTD bit 1 |
| Pin 33 | RD2 — PORTD bit 2 |
| Pin 34 | RD3 — PORTD bit 3 |
| Pin 35 | RD4 — PORTD bit 4 |
| Pin 36 | RD5 — PORTD bit 5 |
| Pin 37 | RD6 — PORTD bit 6 |
| Pin 38 | RD7 — PORTD bit 7 |
| Pin 39 | VSS — Ground reference |
| Pin 40 | VDD — Positive supply voltage |
| Pin 41 | RE0 — PORTE bit 0 |
| Pin 42 | RE1 — PORTE bit 1 |
| Pin 43 | RE2 — PORTE bit 2 |
| Pin 44 | RE3 — PORTE bit 3 / MCLR |
| Pin 45 | VSS — Ground reference |
| Pin 46 | VDD — Positive supply voltage |
| Pin 47 | OSC1 — Crystal oscillator input |
| Pin 48 | OSC2 — Crystal oscillator output |
Aplicaciones típicas
PIC18F56K42T-I/MV es adecuado para 6 aplicacións: IoT Edge Sensor Node, Capacitive Touch HMI Panel, Industrial Control Board, Automotive Body and Interior Module, Home Automation Hub, Consumer Appliance with Display Interface.
IoT Edge Sensor Node
The PIC18F56K42T-I/MV is a strong fit for IoT edge sensor nodes because its XLP nanoWatt technology achieves typical Sleep currents under 50 nA with RAM retention, while the integrated 12-bit ADC2 with up to 35 inputs and 64 MHz CPU bandwidth lets a single device host multiple sensor interfaces alongside a wireless protocol stack. Its 1.8 V minimum VDD extends coin-cell battery life and the DMA controller offloads data movement, letting the CPU remain in Sleep while sensors are sampled. At 64 KB Flash and 4 KB SRAM the K42 holds a complete LoRa/BLE host MCU firmware with comfortable headroom for OTA updates. Use it between a 1.8-3.6 V battery and a low-power transceiver such as the Microchip RN2483 or RN4870, with the CVD peripheral providing wake-on-touch without an external controller.
Recomendado
Capacitive Touch HMI Panel
For capacitive touch HMIs, the PIC18F56K42T-I/MV integrates a hardware Capacitive Voltage Divider (CVD) peripheral that automates touch sampling across up to 35 channels without an external touch controller, reducing BOM cost and PCB area. Its 12-bit ADC2 supports reliable noise-immune touch detection even under noisy industrial supplies, and the DMA channels handle continuous scanning while the CPU remains idle. XLP Sleep mode below 50 nA keeps battery-powered remotes and wall-touch panels idle until a finger event wakes the system. Compared with discrete touch ICs, the CVD approach eliminates firmware overhead for ADC scheduling. Pair with a UART-driven display and an LED backlight driver on the same I2C bus for full HMI integration.
Recomendado
Industrial Control Board
Industrial control boards benefit from the PIC18F56K42T-I/MV's 1.8-5.5 V wide VDD range, four 16-bit hardware PWM channels and two USART/SPI/I2C interfaces for motor, valve and sensor actuation. Its Windowed Watchdog Timer (WWDT) and 32-bit hardware CRC meet IEC 61508 SIL-2 ready design practice for factory-floor equipment, and the -40C to +85C industrial temperature rating supports outdoor enclosures. Compared with 32-bit Cortex-M alternatives, the 8-bit PIC18 offers deterministic interrupt latency under 200 ns, which is critical for closed-loop control loops. Use it to drive a 24 V industrial bus interface, RS-485 transceiver and a stepper motor driver; the 48-pin UQFN footprint simplifies layout in compact DIN-rail modules.
Recomendado
Automotive Body and Interior Module
Automotive body and interior modules, such as HVAC control units, mirror adjusters and lighting controllers, benefit from the PIC18F56K42T-I/MV's wide VDD tolerance, -40C to +85C operation and deterministic 8-bit interrupt response. The integrated ADC2 with charge-pump operation enables low-battery warning thresholds down to 1.8 V without external boost circuitry, while 64 KB Flash comfortably fits CAN-capable automotive stacks using the MCP2515 external CAN controller. Note: This -I/MV variant is industrial-grade; automotive designs should migrate to the AEC-Q100 qualified PIC18F46K42-E/MV equivalent. Pair with a LIN transceiver for body-electronics networks.
Recomendado
Home Automation Hub
The PIC18F56K42T-I/MV is well-suited for home automation hubs and sub-controllers that aggregate Zigbee, Z-Wave, BLE or Wi-Fi sensor traffic because its dual USART and dual SPI/I2C interfaces support multiple wireless co-processors simultaneously. The 64 MHz CPU and 64 KB Flash let the MCU run a Wi-Fi provisioning stack or Matter-over-Wi-Fi edge logic locally, while the ADC2 monitors rail voltages and battery backup levels. XLP sleep modes below 50 nA keep wall-mounted controllers idle when the network is quiet. Use it on the same board as a Microchip WINC1500 Wi-Fi module or RN4870 BLE module for a low-power sub-gateway that processes local rules before forwarding to the cloud.
Recomendado
Consumer Appliance with Display Interface
Consumer appliances with display interfaces, such as coffee machines, microwave ovens and smart thermostats, benefit from the PIC18F56K42T-I/MV's hardware PWM (4 x 16-bit), SPI-driven TFT or OLED displays and CIPs that drive buzzers, triacs and relays without CPU intervention. The DMA controller can refresh an SPI TFT display autonomously while the CPU services user input through CVD touch buttons, reducing firmware complexity. The 1.8-5.5 V VDD range supports direct 3.3 V display logic and 5 V triac interfaces. Compared with external touch ICs, the CVD peripheral consolidates BOM cost, and the 4 KB SRAM holds display frame buffers up to 128x128 mono. Pair with an SSD1306 OLED and a triac driver on the same SPI bus.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18F56K42T-I/MV — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18F55K42T-I/MV | PIC18F57K42T-I/MV | PIC18F47K40T-I/MV |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-UQFN (6x6 mm) MV | 48-UQFN (6x6 mm) MV - same | 48-UQFN (6x6 mm) MV - same | 48-UQFN (6x6 mm) MV - same |
| Flash Memory | 64 KB | 32 KB | 128 KB | 128 KB |
| SRAM | 4 KB | 2 KB | 8 KB | 4 KB |
| Maximum CPU Speed | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| ADC2 Channels | Up to 35 | Up to 35 | Up to 35 | Up to 35 (no charge pump) |
| Capacitive Touch (CVD) | Yes (hardware CVD) | Yes | Yes | Yes (CVD legacy) |
| DMA Channels | 4 | 4 | 4 | 0 (no DMA) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C |
Diferenciadores clave
- Integrated hardware CVD for capacitive touch (frente a PIC18F55K42T-I/MV)
- 64 KB Flash vs 32 KB on PIC18F55K42 in same package (frente a PIC18F55K42T-I/MV)
- ADC2 with integrated charge pump (frente a PIC18F47K40T-I/MV)
- DMA controller for CPU offload (frente a PIC18F47K40T-I/MV)
Notas de diseño
Estimated: For the 48-pin UQFN (6x6 mm) MV package, design the central exposed pad as the primary thermal dissipation path. Solder it directly to a continuous ground pour on the top layer with 9 thermal vias (0.3 mm drill, 0.6 mm pad) to the inner ground plane. This achieves a theta_JA below 30 C/W and keeps junction temperature well within the 150 C absolute maximum at the K42 family's 64 MHz operation. Avoid routing signal traces under the exposed pad to prevent capacitive coupling into the ground reference.
Place a 0.1 uF X7R ceramic decoupling capacitor within 3 mm of each VDD/VDDCORE pin pair and a 10 uF bulk capacitor near the device power input. The PIC18F56K42 has six VDD pins distributed across the package; pairing each with its own local 0.1 uF cap minimizes switching noise on the analog rails used by the ADC2. For ADC2 measurements below 100 mV full-scale, also add a ferrite bead on the analog VDD line to isolate the analog rail from digital switching transients.
Do not exceed 5.5 V on any VDD pin during ICSP programming or in-circuit debugging - the K42 family has no internal overvoltage protection and over-voltage events can latch-up the I/O ring. When using the CVD peripheral for capacitive touch, ensure the sensor traces are guarded with a grounded trace on both sides to prevent cross-talk between adjacent channels. Finally, MPLAB X IDE projects should configure CONFIG words for BOR (Brown-Out Reset) enabled to avoid code execution at unsafe low VDD.
Estimated: For 64 MHz operation with 16 MIPS throughput, route the crystal traces (OSC1/OSC2) shorter than 10 mm and surrounded by a ground pour to minimize EMI susceptibility. If using the internal 64 MHz HFINTOSC instead, no crystal layout is needed but configure OSCCON1 with the NOSC bits to select HFINTOSC at 64 MHz and set CLKRDIV to divide by 1. Keep the MCLR/RE3 pin either as a reset input (10 kohm pull-up to VDD) or as a digital GPIO only - do not leave it floating as the device can randomly enter programming mode.
Información de cumplimiento
I-suffix denotes industrial temperature grade (-40C to +85C). MV package is lead-free UQFN. This variant is NOT AEC-Q100 qualified; for automotive AEC-Q100 qualified K42 variants choose PIC18F46K42-E/MV or equivalent E-suffix parts.
