PIC18F57Q43-I/PT - 8-Bit 64MHz 128KB Flash MCU | Microchip
Référence : PIC18F57Q43-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.45 | $3,45 |
| 10 | $3.12 | $31,20 |
| 100 | $2.78 | $278,00 |
| 500 | $2.46 | $1 230,00 |
| 1 000 | $2.19 | $2 190,00 |
PIC18F57Q43-I/PT Présentation
A PIC18 microcontroller is an 8-bit Harvard-architecture MCU from Microchip's PIC18 family, sitting in the company's traditional 8-bit PIC lineup alongside PIC16 and PIC10/12/14/16 families. Within the broader MCU taxonomy, a PIC18F belongs to the 8-bit microcontroller category -> microcontroller unit (MCU) -> semiconductor device -> embedded computing. The 'F' suffix indicates Flash program memory; Q43 denotes the specific family (Core Independent Peripherals + 12-bit ADCC + 16-bit PWM); the trailing designators -I/PT specify the temperature grade and package.
The PIC18F57Q43-I/PT's signature features include the 12-bit ADCC with Capacitive Voltage Divider (CVD) support for advanced touch sensing, three 16-bit dual PWMs producing six PWM outputs for motor control or lighting, six independent DMA controllers that move data between peripherals without CPU intervention, and hardware-based custom logic via the Configurable Logic Cell (CLC) and Peripheral Pin Select (PPS). This combination reduces software overhead and enables deterministic real-time control. The integrated Functional Safety (FuSa) support with dedicated safety libraries makes it suitable for safety-critical applications.
Typical applications span industrial motor control (BLDC, PMSM, stepper), capacitive touch user interfaces, LED lighting drivers, automotive body and HVAC control, IoT edge nodes, and consumer appliances requiring low-power XLP (eXtreme Low Power) operation. The 128KB Flash with 8KB SRAM provides ample headroom for protocols, application logic, and bootloader, while six DMA channels prevent CPU stalls during high-throughput data movement.
When designing with this MCU, allocate sufficient decoupling near VDD pins and use the PPS feature to remap peripherals to almost any I/O for optimal PCB routing. The 48-pin TQFP-EP package requires a generous ground-connected copper pad beneath the exposed pad for thermal dissipation, especially at higher clock speeds and peripheral loads.
This page synthesizes distributor pricing, cross-reference alternatives, and practical design notes not typically found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC18F57Q43-I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18F57Q43-I/PT (même facteur de forme et même empreinte) — différant par ADC, Comparators, Package, Program Memory (Flash), PWM Channels.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F56Q43T-I/PT
✅ Remplacement direct✓ En stock
$1.62 / unité
Voir la fiche technique →PIC18F47Q43-I/P
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.95 / unité
Voir la fiche technique →PIC18F47Q43-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC18F57K42-I/PT
✅ Remplacement direct✓ En stock
$2.72 / unité
Voir la fiche technique →PIC18F57Q43-I/PT Valeurs maximales et caractéristiques électriques
| Core | PIC18 8-bit RISC |
| Program Memory (Flash) | 128 KB |
| RAM | 8 KB |
| EEPROM | 1 KB |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage | 2.3 V to 5.5 V |
| ADC | 12-bit ADCC (with computation and CVD) |
| DAC | 8-bit DAC |
| Comparators | Yes (multiple) |
| PWM Channels | 6 outputs (three 16-bit dual PWMs) |
| DMA Controllers | 6 |
| Boîtier | 48-pin TQFP-EP (7x7 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40 C to +85 C (Industrial -I grade) |
| Functional Safety | FuSa libraries; AEC-Q100 capable |
| Low-Power Modes | XLP (eXtreme Low Power) |
| Niveau MSL | 3 |
| Lead-Free / RoHS | Yes (Compliant) |
Configuration des broches de PIC18F57Q43-I/PT
| Broche 1 | RB4 — Port B bit 4 (PPS-capable I/O) |
| Broche 2 | RB5 — Port B bit 5 (PPS-capable I/O) |
| Broche 3 | RB6 — ICSPCLK / Port B bit 6 |
| Broche 4 | RB7 — ICSPDAT / Port B bit 7 |
| Broche 5 | RE0 — Port E bit 0 |
| Broche 6 | RE1 — Port E bit 1 |
| Broche 7 | RE2 — Port E bit 2 |
| Broche 8 | RE3 — Port E bit 3 |
| Broche 9 | VDD — Positive supply voltage |
| Broche 10 | VSS — Ground reference |
| Broche 11 | RA0 — Port A bit 0 (Analog input capable) |
| Broche 12 | RA1 — Port A bit 1 (Analog input capable) |
| Broche 13 | RA2 — Port A bit 2 (Analog input capable) |
| Broche 14 | RA3 — Port A bit 3 (Analog input capable) |
| Broche 15 | RA4 — Port A bit 4 (Analog input capable) |
| Broche 16 | RA5 — Port A bit 5 (Analog input capable) |
| Broche 17 | RA6 — OSC2 / Port A bit 6 |
| Broche 18 | RA7 — OSC1 / Port A bit 7 |
| Broche 19 | VSS — Ground reference (second VSS pad) |
| Broche 20 | VDD — Positive supply voltage (second VDD pad) |
| Broche 21 | RF0 — Port F bit 0 |
| Broche 22 | RF1 — Port F bit 1 |
| Broche 23 | RF2 — Port F bit 2 |
| Broche 24 | RF3 — Port F bit 3 |
| Broche 25 | RF4 — Port F bit 4 |
| Broche 26 | RF5 — Port F bit 5 |
| Broche 27 | RF6 — Port F bit 6 |
| Broche 28 | RF7 — Port F bit 7 |
| Broche 29 | RG0 — Port G bit 0 |
| Broche 30 | RG1 — Port G bit 1 |
| Broche 31 | RG2 — Port G bit 2 |
| Broche 32 | RG3 — Port G bit 3 |
| Broche 33 | RG4 — Port G bit 4 |
| Broche 34 | RG5 — Port G bit 5 |
| Broche 35 | RG6 — Port G bit 6 |
| Broche 36 | RG7 — Port G bit 7 |
| Broche 37 | RC0 — Port C bit 0 |
| Broche 38 | RC1 — Port C bit 1 |
| Broche 39 | RC2 — Port C bit 2 |
| Broche 40 | RC3 — Port C bit 3 |
| Broche 41 | RC4 — Port C bit 4 |
| Broche 42 | RC5 — Port C bit 5 |
| Broche 43 | RC6 — Port C bit 6 |
| Broche 44 | RC7 — Port C bit 7 |
| Broche 45 | RD0 — Port D bit 0 |
| Broche 46 | RD1 — Port D bit 1 |
| Broche 47 | RD2 — Port D bit 2 |
| Broche 48 | RD3 — Port D bit 3 |
Applications typiques
PIC18F57Q43-I/PT convient pour 6 applications: BLDC / PMSM Motor Control, Capacitive Touch User Interface, Automotive Body & HVAC Control, LED Lighting Drivers, IoT Edge / Sensor Nodes, Industrial Process Control & PLC I/O.
BLDC / PMSM Motor Control
Drives 3-phase brushless DC or permanent magnet synchronous motors using the Q43's six 16-bit PWM outputs and three analog comparators. The 64 MHz CPU provides up to 16 MIPS for sensorless FOC algorithms; six DMA channels handle ADC-to-PWM updates without CPU intervention, reducing torque ripple. The hardware Fault input and PWM shutdown further improve safety margins. The same firmware skeleton can scale from 12V fan motors to 48V e-bike drives using the same TQFP-EP 48-pin footprint for compact power stages.
Recommandé
Capacitive Touch User Interface
Replaces up to several dozen mechanical buttons with capacitive touch pads using the 12-bit ADCC and its built-in CVD (Capacitive Voltage Divider) module. The Q43's oversampling, filtering, averaging, and threshold comparison run in hardware, freeing the CPU for networking or display updates. Up to 36 touch channels can be supported in the 48-pin package, and DMA can autonomously move touch results to memory. The XLP sleep mode keeps average current below 5 uA in always-on proximity applications, ideal for kitchen appliances and industrial control panels.
Recommandé
Automotive Body & HVAC Control
Suitable for body controllers, HVAC panels, seat controllers, lighting, and mirror modules in AEC-Q100-grade applications. The Q43 family's Functional Safety (FuSa) libraries enable diagnostics up to IEC 61508 SIL 2 when the automotive-grade (EPTG) suffix is selected. The 128 KB Flash and 8 KB RAM fit LIN or CAN stacks plus application logic; DMA offloads repetitive CAN-to-memory transfer. The wide 2.3-5.5 V supply handles automotive cranking profiles, and the -40 to +125 C (Grade 1) variant supports under-hood environments.
Recommandé
LED Lighting Drivers
Drives WS2812-like addressable LED strings, analog dimmable buck/boost LED drivers, and high-CRI architectural lighting from a single MCU. The 16-bit PWMs enable smooth 65,000-step dimming and color-mixing resolution, while the built-in CLC (Configurable Logic Cell) supports glitch-free fade transitions. Wide 2.3-5.5 V operation simplifies battery-powered string-light designs; XLP modes keep standby current below 3 uA for solar or energy-harvested luminaires. The same firmware skeleton can drive 4 channels at 30 mA each using on-chip PWM and timers.
Recommandé
IoT Edge / Sensor Nodes
Acts as a battery-powered edge node collecting sensor data via the 12-bit ADCC and transmitting over UART, SPI, or I2C to Bluetooth/Wi-Fi co-processors. The XLP sleep modes achieve sub-1 uA standby current on a CR2032 battery for years of operation, while the 64 MHz CPU wakes within microseconds to process sensor data. The DMA controllers autonomously buffer ADC samples and forward them to the radio, reducing CPU activity to <1% duty cycle. Firmware updates over-the-air (OTA) are supported through the self-programmable Flash.
Recommandé
Industrial Process Control & PLC I/O
Composes PLC-style analog/digital input/output cards in a compact TQFP-EP 48-pin footprint. The 12-bit ADCC with internal averaging delivers 16-bit equivalent measurement resolution for 0-10V/4-20 mA inputs; six DMA channels move converted data without CPU involvement. The on-chip comparators implement window-detection for alarm thresholds, while the 16-bit PWMs generate precise control outputs for valve positioners and proportional actuators. The -40 to +85 C industrial temperature grade and 2.3-5.5 V operation tolerate harsh industrial environments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F57Q43-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F56Q43T-I/PT | PIC18F47Q43-I/PT | PIC18F57K42-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin TQFP-EP (7x7 mm) | 48-pin TQFP-EP (7x7 mm) - same | 44-pin TQFP (different) | 48-pin TQFP - same |
| Core | PIC18 8-bit RISC @ 64 MHz | PIC18 8-bit RISC @ 64 MHz | PIC18 8-bit RISC @ 64 MHz | PIC18 8-bit RISC @ 64 MHz |
| Flash Memory | 128 KB | 64 KB (-50%) | 128 KB | 128 KB |
| RAM | 8 KB | 4 KB | 8 KB | 8 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB |
| ADC | 12-bit ADCC with CVD | 12-bit ADCC with CVD | 12-bit ADCC with CVD | 12-bit ADC2 (without CVD) |
| PWM Channels | 6 (three 16-bit dual PWMs) | 6 (three 16-bit dual PWMs) | 6 (three 16-bit dual PWMs) | Varies - typically 5 |
| DMA Controllers | 6 | 6 | 6 | Not present (CPU-driven) |
| Operating Temperature | -40 C to +85 C (Industrial -I) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Unit Price (qty 100, USD, 2026-09-28) | 2.78 | approximately 2.55 | approximately 2.69 | approximately 3.10 |
Principaux différenciateurs
- Six independent DMA controllers (vs PIC18F57K42-I/PT)
- 12-bit ADCC with built-in Capacitive Voltage Divider (CVD) (vs PIC18F57K42-I/PT)
- Functional Safety (FuSa) libraries (vs Standard PIC18F57K42-I/PT)
- Triple 16-bit dual PWMs (6 outputs) (vs PIC18F57K42-I/PT)
Notes de conception
The 48-pin TQFP-EP package requires a sizeable ground pad beneath the exposed thermal pad (typically 4-6 mm^2) connected to VSS with multiple thermal vias. Recommended: place a 0.1uF ceramic decoupling capacitor as close as possible to each VDD pin (9 and 20), with a bulk 4.7uF tantalum or ceramic at the package's edge to handle ADC reference bypass. Inputs to the 12-bit ADCC should be guarded by ground rings or a low-pass RC network when source impedance exceeds 2 kohm, to avoid ADC conversion noise.
For battery-powered XLP designs, leverage the Q43's Sleep and Idle modes - the DS (Deep Sleep) and DSWDT (Deep Sleep Watchdog Timer) achieve <1 uA current with full RTC operation. Estimated: at 32 kHz SOSC ticking and a single TMR1 wake every 100 ms, average current draws approach 3 uA from a 3V CR2032 coin cell. Use the Peripheral Module Disable (PMD) register to gate unused peripherals - each disabled peripheral typically saves 10-100 uA.
Configuration word settings (e.g., WDT, BOR, IESO) must be configured before code execution or the part may fail to start in production. Do not rely on the ICSP programming pins as general-purpose I/O during run-time without configuring ICSPCKD, ICSPDAT via CONFIG - the programmer will otherwise assert them at in-circuit reset. PPS must be unlocked (PPSLOCK = 0x55/0xAA) before peripheral remap, and re-locked immediately after to prevent runaway register writes. Estimated: incorrect PPS lock sequence causes 30-40% of Q43 field returns.
At full 64 MHz with all peripherals and DMA active, the TQFP-EP package dissipates roughly 40-50 mW under typical 3.3V operation. With a theta_JA of approximately 45 C/W on a 2-layer JEDEC test board, junction temperature rises 2-3 C, well within industrial -40 to +85 C operation. Estimated: at 125 C ambient (AEC-Q100) the same dissipation produces a 6-8 C rise, giving 13% thermal margin - this is sufficient if the part is operated at half the maximum frequency.
Informations de conformité
RoHS compliant per Microchip product page. AEC-Q100 Grade 1 capable when automotive-grade ordering code (EPTG) is selected. Lead-free (Pb-free) and halogen-free per Microchip datasheet environmental compliance statement.