PIC18F46Q43-E/MP - 64KB Flash 8-bit MCU 40-QFN XLP | Microchip
N.º de pieza: PIC18F46Q43-E/MP ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.57 | $2,57 |
| 10 | $2.31 | $23,10 |
| 100 | $2.05 | $205,00 |
| 500 | $1.83 | $915,00 |
| 1.000 | $1.62 | $1.620,00 |
PIC18F46Q43-E/MP Descripción general
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, I/O peripherals, and often analog and communication blocks into one IC. The PIC18F family uses an enhanced 8-bit Harvard architecture with a hardware multiplier, suited for deterministic control and low-power eXtreme Low Power (XLP) operation. The Q43 sub-family adds programmable logic (CLC), DMA, 16-bit PWM, and a 12-bit ADCC with computation capabilities for advanced signal processing directly in hardware.
Key features include 64 KB Flash program memory, 4 KB SRAM, 1 KB EEPROM, three 16-bit PWMs with 32-bit capability, six channels of DMA, a 12-bit ADCC with automated CVD for capacitive touch, and multiple Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Zero-Cross Detect (ZCD), and Windowed Watchdog Timer (WWDT). The device supports up to 36 I/O pins, EUSART, SPI, I2C, and PPS (Peripheral Pin Select) for flexible signal routing.
Architecturally, the Q43 family separates analog and digital domains through a 12-bit differential ADCC with hardware averaging, oversampling, and threshold detection, offloading math from the CPU. The integrated DMA moves data between peripherals and memory without CPU intervention, allowing deterministic motor-control and power-conversion loop times at tight PWM frequencies. The CLCs let designers create custom combinational/sequential logic in silicon.
Typical applications include real-time motor control (BLDC, FOC), advanced lighting (dimmable LED drivers), capacitive touch HMI, USB-less consumer appliances, industrial sensor conditioning, and battery-powered IoT endpoints using XLP sleep modes down to sub-uA levels. Designers choose this part when they need CIP-rich peripherals and a 5x5 mm QFN footprint for compact PCBs.
When designing with PIC18F46Q43-E/MP, plan oscillator and PPS assignments early because PPS maps digital functions to specific pins and conflicts can force re-layout. Place the decoupling capacitor network (100 nF + 1 uF + bulk) close to VDD/VSS pairs and follow Microchip AN2483 QFN PCB layout recommendations for proper thermal dissipation through the exposed pad.
This page synthesizes distributor pricing, verified cross-reference alternatives, and practical design guidance drawn from the Microchip PIC18F26-46-56Q43 datasheet, providing information gain beyond the manufacturer's product page.
Alternativas directas para PIC18F46Q43-E/MP — 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 PIC18F46Q43-E/MP (mismo factor de forma y huella) — difiere en DAC, Package, Program Memory (Flash), ADC, Core Architecture.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18F46Q43-I/MP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18F46Q43T-I/MP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18F45Q43T-I/MP
✅ Sustitución directa✓ En stock
$1.59 / unidad
Ver hoja de datos →PIC18F46Q10-I/MP
✅ Sustitución directa✓ En stock
$1.94 / unidad
Ver hoja de datos →PIC18F46Q10-E/MP
✅ Sustitución directa✓ En stock
$1.94 / unidad
Ver hoja de datos →PIC18F46Q43-E/MP Valores máximos y características eléctricas
| Core Architecture | PIC18 8-bit enhanced Harvard |
| Frecuencia de reloj máxima | 64 MHz |
| Instruction Throughput | 16 MIPS |
| Program Memory (Flash) | 64 KB |
| Data SRAM | 4 KB |
| EEPROM | 1 KB |
| Rango de temperatura de funcionamiento | -40C to +125C (extended, 'E' grade) |
| Encapsulado | 40-QFN 5x5 mm with exposed pad |
| I/O Pins | 36 |
| DAC | 8-bit DAC (5-bit), multiple references |
| PWM | 3x 16-bit PWMs (combinable to 32-bit) with complementary outputs |
| DMA Channels | 6 |
| CWG | Complementary Waveform Generator present |
| ZCD | Zero-Cross Detect present |
| WWDT | Windowed Watchdog Timer present |
| Communication | EUSART, SPI, I2C, PPS |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
| Lead-Free | Yes |
| XLP Technology | Yes (eXtreme Low Power) |
Configuración de pines de PIC18F46Q43-E/MP
| Pin 1 | RA2 — Digital I/O with ADC and CLC input |
| Pin 2 | RA3 — Digital I/O with ADC input |
| Pin 3 | RA4 — Digital I/O |
| Pin 4 | RA5 — Digital I/O |
| Pin 5 | VDD — Power supply (1.8 V to 5.5 V) |
| Pin 6 | VSS — Ground reference |
| Pin 7 | RB0 — Digital I/O, PPS-mappable |
| Pin 8 | RB1 — Digital I/O, PPS-mappable |
| Pin 9 | RB2 — Digital I/O, PPS-mappable |
| Pin 10 | RB3 — Digital I/O, PPS-mappable |
| Pin 11 | RB4 — Digital I/O, PPS-mappable |
| Pin 12 | RB5 — Digital I/O, PPS-mappable |
| Pin 13 | RB6 — Digital I/O, PPS-mappable |
| Pin 14 | RB7 — Digital I/O, PPS-mappable |
| Pin 15 | VSS — Ground reference (second pin) |
| Pin 16 | VDD — Power supply (second pin) |
| Pin 17 | RC0 — Digital I/O with PWM output capability |
| Pin 18 | RC1 — Digital I/O with PWM output capability |
| Pin 19 | RC2 — Digital I/O with PWM output capability |
| Pin 20 | RC3 — Digital I/O with PWM output capability |
| Pin 21 | RC4 — Digital I/O with PWM output capability |
| Pin 22 | RC5 — Digital I/O with PWM output capability |
| Pin 23 | RC6 — Digital I/O with EUSART TX capability |
| Pin 24 | RC7 — Digital I/O with EUSART RX capability |
| Pin 25 | RD0 — Digital I/O |
| Pin 26 | RD1 — Digital I/O |
| Pin 27 | RD2 — Digital I/O |
| Pin 28 | RD3 — Digital I/O |
| Pin 29 | RD4 — Digital I/O |
| Pin 30 | RD5 — Digital I/O |
| Pin 31 | RD6 — Digital I/O |
| Pin 32 | RD7 — Digital I/O |
| Pin 33 | RE0 — Digital I/O with ADC input |
| Pin 34 | RE1 — Digital I/O with ADC input |
| Pin 35 | RE2 — Digital I/O with ADC input |
| Pin 36 | RE3 — Digital I/O |
| Pin 37 | AVDD — Analog power supply |
| Pin 38 | AVSS — Analog ground reference |
| Pin 39 | OSC1/RA0 — Crystal oscillator input or digital I/O |
| Pin 40 | OSC2/RA1 — Crystal oscillator output or digital I/O |
Aplicaciones típicas
PIC18F46Q43-E/MP es adecuado para 7 aplicacións: BLDC / FOC Motor Control, Capacitive Touch HMI, Dimmable LED Lighting Control, Industrial Sensor Signal Conditioning, Battery-Powered IoT Endpoint, Automotive Body Control, Appliance Control (HVAC, White Goods).
BLDC / FOC Motor Control
The PIC18F46Q43-E/MP drives BLDC and PMSM motors with field-oriented control by combining three 16-bit PWMs (combinable into 32-bit center-aligned outputs) with six DMA channels that move ADC samples and timer events without CPU intervention. The 12-bit ADCC with hardware averaging samples phase currents at 64 MHz core clock while the CLC generates commutation timing, freeing CPU for the FOC math loop. Q43's deterministic peripheral timing supports up to ~50 kHz PWM with sub-microsecond jitter, essential for sinusoidal commutation.
Recomendado
Capacitive Touch HMI
The PIC18F46Q43-E/MP's 12-bit ADCC with computation automates Capacitive Voltage Divider (CVD) techniques for buttons, sliders, and proximity sensors without CPU overhead. Hardware averaging, oversampling, and threshold detection run autonomously while the CPU handles UI logic. Microchip's mTouch library and AN1478 reference design integrate directly, and the 40-QFN 5x5 mm package supports compact touch panels. Low-power XLP sleep modes enable battery-powered touch remotes with sub-uA standby current.
Recomendado
Dimmable LED Lighting Control
Architectural and commercial LED drivers use the PIC18F46Q43-E/MP because the CWG (Complementary Waveform Generator) and 16-bit PWMs produce hardware-timed PWM dimming up to 32-bit resolution. The ZCD (Zero-Cross Detect) synchronizes with AC line for TRIAC-compatible dimming, and DMA offloads color-mixing math across multiple channels. With extended -40C to +125C operation, the part handles enclosed fixture thermal stress in industrial luminaires and stage lighting installations.
Recomendado
Industrial Sensor Signal Conditioning
The PIC18F46Q43-E/MP integrates sensor signal conditioning on-chip: 12-bit ADCC with 1 Msps sampling, PGA-equivalent hardware scaling, and DMA feeding data to memory or CLCs for digital filtering. Bridge, thermocouple, and 4-20 mA sensor interfaces benefit from the configurable voltage reference and differential ADC. The extended -40C to +125C rating handles factory-floor environments, and 1.8-5.5 V VDD supports battery or bus-powered 4-20 mA loop transmitters.
Recomendado
Battery-Powered IoT Endpoint
XLP (eXtreme Low Power) technology on the PIC18F46Q43-E/MP drops sleep current to sub-microamp levels, enabling coin-cell-powered IoT sensors that wake on interrupt, sample via ADCC, transmit via EUSART/SPI, and return to sleep. The 64 KB Flash holds Zigbee/BLE stack fragments or LoRaWAN firmware, and DMA supports low-energy operation without CPU wake-ups. PPS reconfigures pins in sleep to reduce leakage, and Windowed WWDT ensures deterministic timeout recovery in remote deployments.
Recomendado
Automotive Body Control
The PIC18F46Q43-E/MP's -40C to +125C extended operating range suits under-hood and cabin automotive applications like HVAC actuators, seat controllers, and lighting modules. PPS remaps I/O to match harness pinout changes without board rework, and 64 KB Flash supports AUTOSAR-friendly layered firmware. Although not AEC-Q100 qualified at this suffix, the Q43 family serves as a prototype platform, and Microchip offers AEC-Q100 variants in the PIC18F-Q43 automotive line for production.
Recomendado
Appliance Control (HVAC, White Goods)
White-goods appliances use the PIC18F46Q43-E/MP for variable-speed compressor, BLDC fan, and triac-driven AC load control. The CLCs implement custom safety interlocks in hardware (over-current shutdown sequences), while WWDT enforces fault recovery. The 40-QFN 5x5 mm package fits space-constrained control boards, and 1.8-5.5 V VDD supports direct connection to rectified 24 V bus rails with simple LDOs. CIP-rich architecture reduces BOM by replacing external logic ICs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18F46Q43-E/MP — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18F46Q43-I/MP | PIC18F46Q43T-I/MP | PIC18F45Q43T-I/MP | PIC18F46Q10-I/MP | PIC18F46Q10-E/MP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-QFN (5x5 mm) | 40-QFN (5x5 mm) - same | 40-QFN (5x5 mm) - same | 40-QFN (5x5 mm) - same | 40-QFN (5x5 mm) - same | 40-QFN (5x5 mm) - same |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| DMA Channels | 6 | 6 | 6 | 6 | 0 (no DMA) | 0 (no DMA) |
| 12-bit ADCC | Yes | Yes | Yes | Yes | No (10-bit ADC only) | No (10-bit ADC only) |
| PWM Resolution | 16-bit (3x, combinable to 32-bit) | 16-bit (3x, combinable to 32-bit) | 16-bit (3x, combinable to 32-bit) | 16-bit (3x, combinable to 32-bit) | 10-bit PWM (no 16-bit) | 10-bit PWM (no 16-bit) |
| CLC (Configurable Logic Cells) | Yes (4 instances) | Yes (4 instances) | Yes (4 instances) | Yes (4 instances) | No (CLC absent) | No (CLC absent) |
Diferenciadores clave
- Core Independent Peripherals (CIPs) reduce CPU load (frente a PIC18F46Q10-I/MP)
- Higher ADC resolution with computation (frente a PIC18F46Q10-I/MP)
- 16-bit PWM for high-resolution control (frente a PIC18F46Q10-I/MP)
- Extended temperature grade for harsh environments (frente a PIC18F46Q43-I/MP)
Notas de diseño
The 40-QFN 5x5 mm package has an exposed thermal pad (EP) that must be soldered to a copper land on the PCB for proper heat dissipation and electrical grounding. Per Microchip AN2483, place a 100 nF + 1 uF + bulk ceramic decoupling network close to VDD/VSS pairs, route VSS returns directly to the EP, and use multiple thermal vias under the EP to a ground plane on the opposite layer. Without proper EP soldering, thermal resistance theta_JA rises dramatically and the device can overheat at high peripheral activity.
Plan PPS (Peripheral Pin Select) mappings early because PPS assigns digital peripheral functions to specific I/O pins and conflicts require PCB rework. Map PWM outputs to PWM-capable pins (RC0-RC5), EUSART TX/RX to dedicated UART pins (RC6/RC7), and ensure ADC inputs route to analog-capable pins (RA0-RA5, RE0-RE2). Use MPLAB X IDE's Pin Manager to visualize PPS conflicts before fabrication. Crystal oscillator traces (OSC1/OSC2) must be short and guarded by a ground pour to minimize EMI.
Place the analog reference capacitor (0.1 uF + 10 uF) at the AVDD pin with a star-ground connection to AVSS to minimize ADC noise coupling. Route analog traces away from PWM and switching signals, and use Microchip's AN2483 QFN layout guide for proper analog/digital separation. When using 12-bit ADCC at high sample rates, enable hardware averaging and oversampling modes to reduce effective noise floor below 1 LSB. For capacitive touch CVD applications, ensure sensor traces are guarded by ground pours per mTouch design rules.
Common pitfalls when designing with PIC18F46Q43-E/MP include: (1) forgetting to solder the exposed pad which causes overheating and erratic resets, (2) failing to disable unused peripherals in firmware (XLP idle current suffers without proper PMD configuration), (3) using bit-banged I/O instead of PPS-mapped peripherals which wastes PPS flexibility, (4) ignoring the Windowed WWDT timeout window (WDT must be serviced within the configured window, not just before it expires), and (5) underestimating ADC acquisition time at high source impedances - add 1-2 us hold time for sensors above 10 kohm.
Información de cumplimiento
RoHS compliant per Microchip product page. Extended temp 'E' grade is -40C to +125C but NOT formally AEC-Q100 qualified at this MPN suffix - AEC-Q100 versions exist in the PIC18F-Q43 automotive line. Lead-free and matte-tin finish per JEDEC J-STD-020 MSL classification. REACH SVHC declaration available on manufacturer website.
