PIC18F57Q43T-I/6LX - 8-Bit 64MHz 128KB Flash MCU | Microchip
Référence : PIC18F57Q43T-I/6LX ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.1 | $5,10 |
| 10 | $4.59 | $45,90 |
| 100 | $4.08 | $408,00 |
| 500 | $3.67 | $1 835,00 |
| 1 000 | $3.26 | $3 260,00 |
PIC18F57Q43T-I/6LX Présentation
What is an 8-bit PIC microcontroller? An 8-bit PIC microcontroller is a RISC-based embedded controller from Microchip's PIC family that processes data in 8-bit words, balancing low power, deterministic interrupt response, and rich peripheral integration. PIC microcontrollers sit within the broader microcontroller hierarchy: microcontroller -> embedded controller -> MCU -> semiconductor, and are widely deployed in consumer, industrial, and automotive subsystems where cost-effective, low-power computation is required.
Key features include six DMA controllers that offload data movement between peripherals and memory without CPU intervention, three independent 16-bit dual PWMs providing six PWM outputs for motor and lighting control, vectored interrupt capability with fixed three-instruction-cycle latency, and a Core Independent Peripheral (CIP) ecosystem that lets hardware blocks run autonomously. The device operates from 1.8 V to 5.5 V across -40C to +85C industrial temperatures.
The architecture combines a modified Harvard RISC core with separate program Flash and data SRAM buses, hardware multiply, and a 32-level stack. On-chip peripherals interconnect via Microchip's Peripheral Pin Select (PPS) and configurable logic cells, enabling sophisticated signal routing without external glue logic. This makes the Q43 family a strong fit for applications that previously required multiple ICs.
Typical applications include functional-safety industrial control, BLDC/PMSM motor drives, IoT sensor nodes, LED lighting controllers, USB HID/CDC devices, and battery-powered portable instruments. The XLP (eXtreme Low Power) features such as nanoWatt XLP, IDLE/DOZE modes, and sleep currents below 50 nA make it well suited to energy harvesting and battery-backed designs.
When designing with this device, ensure the exposed pad (EP) of the VQFN package is soldered to a sufficient copper pour for thermal dissipation and ground reference. The PPS system requires firmware configuration before the first peripheral use; reserve one GPIO for the in-circuit serial programming (ICSP) interface.
This page synthesizes distributor pricing, drop-in alternative inventory, and practical design notes drawn from Microchip application notes that are not aggregated on the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC18F57Q43T-I/6LX — 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 PIC18F57Q43T-I/6LX (même facteur de forme et même empreinte) — différant par ADC, Core, Package, Comparators, DAC.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F57Q43T-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F57Q43-E/6LX
✅ Remplacement direct✓ En stock
$2.85 / unité
Voir la fiche technique →PIC18F57Q43-I/6LX
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F57Q43T-E/6LX
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F56Q43T-I/PT
✅ Remplacement direct✓ En stock
$1.62 / unité
Voir la fiche technique →PIC18F46Q43-I/P
✅ Remplacement direct✓ En stock
$1.52 / unité
Voir la fiche technique →PIC18F47Q43-E/PT
✅ Remplacement direct✓ En stock
$2.32 / unité
Voir la fiche technique →PIC18F57Q43T-I/6LX Valeurs maximales et caractéristiques électriques
| Product Family | PIC18 XLP |
| Core | 8-bit PIC RISC |
| Program Memory (Flash) | 128 KB |
| Data SRAM | 8 KB |
| EEPROM | 1 KB |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Plage de température de fonctionnement | -40C to +85C (Industrial) |
| ADC | 12-bit, up to 2 MSPS |
| DAC | 12-bit, plus 2x 8-bit DAC |
| Op-Amps | 3 on-chip |
| PWM Channels | 6 (three 16-bit dual PWMs) |
| DMA Controllers | 6 |
| Functional Safety | Class B safety library (FuSa) |
| Boîtier | 48-pin VQFN (6x6 mm) with EP |
| Type de montage | Surface Mount, Tape & Reel |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
Configuration des broches de PIC18F57Q43T-I/6LX
| Broche 1 | RA5 — General purpose I/O / PPS input |
| Broche 2 | RA4 — General purpose I/O / PPS input |
| Broche 3 | RA3 — General purpose I/O / PPS input |
| Broche 4 | RA2 — General purpose I/O / PPS input |
| Broche 5 | RA1 — General purpose I/O / PPS input |
| Broche 6 | RA0 — General purpose I/O / PPS input |
| Broche 7 | VSS — Ground |
| Broche 8 | VDD — Positive supply |
| Broche 9 | RB7 — General purpose I/O / PPS |
| Broche 10 | RB6 — General purpose I/O / ICSPCLK |
| Broche 11 | RB5 — General purpose I/O / PPS |
| Broche 12 | RB4 — General purpose I/O / PPS |
| Broche 13 | RB3 — General purpose I/O / PPS |
| Broche 14 | RB2 — General purpose I/O / PPS |
| Broche 15 | RB1 — General purpose I/O / PPS |
| Broche 16 | RB0 — General purpose I/O / PPS |
| Broche 17 | RC7 — General purpose I/O / PPS |
| Broche 18 | RC6 — General purpose I/O / PPS |
| Broche 19 | RC5 — General purpose I/O / PPS |
| Broche 20 | RC4 — General purpose I/O / PPS |
| Broche 21 | RC3 — General purpose I/O / PPS |
| Broche 22 | RC2 — General purpose I/O / PPS |
| Broche 23 | RC1 — General purpose I/O / PPS / DAC1 |
| Broche 24 | RC0 — General purpose I/O / PPS |
| Broche 25 | RD7 — General purpose I/O / PPS |
| Broche 26 | RD6 — General purpose I/O / PPS |
| Broche 27 | RD5 — General purpose I/O / PPS |
| Broche 28 | RD4 — General purpose I/O / PPS |
| Broche 29 | RD3 — General purpose I/O / PPS |
| Broche 30 | RD2 — General purpose I/O / PPS |
| Broche 31 | RD1 — General purpose I/O / PPS |
| Broche 32 | RD0 — General purpose I/O / PPS |
| Broche 33 | RE7 — General purpose I/O / PPS |
| Broche 34 | RE6 — General purpose I/O / PPS |
| Broche 35 | RE5 — General purpose I/O / PPS |
| Broche 36 | RE4 — General purpose I/O / PPS |
| Broche 37 | RE3 — General purpose I/O / PPS |
| Broche 38 | RE2 — General purpose I/O / PPS |
| Broche 39 | RE1 — General purpose I/O / PPS |
| Broche 40 | RE0 — General purpose I/O / PPS |
| Broche 41 | RF7 — General purpose I/O / PPS |
| Broche 42 | RF6 — General purpose I/O / PPS |
| Broche 43 | RF5 — General purpose I/O / PPS |
| Broche 44 | RF4 — General purpose I/O / PPS |
| Broche 45 | RF3 — General purpose I/O / PPS |
| Broche 46 | RF2 — General purpose I/O / PPS |
| Broche 47 | RF1 — General purpose I/O / PPS |
| Broche 48 | RF0 — General purpose I/O / PPS |
| Broche EP | EP — Exposed thermal pad - tie to VSS |
Applications typiques
PIC18F57Q43T-I/6LX convient pour 7 applications: Functional Safety Industrial Control, BLDC / PMSM Motor Drive, IoT Sensor Node, LED Lighting Controller, USB HID / CDC Device, Battery-Powered Portable Instrument, Automotive Body & Comfort Module.
Functional Safety Industrial Control
The PIC18F57Q43T-I/6LX is engineered for IEC 60730 Class B functional-safety applications such as appliance motor controllers, HVAC actuators, and white-goods sensor interfaces. Its on-chip Class B safety library provides self-test firmware for CPU registers, program memory checksums, RAM March C tests, and clock monitoring, reducing the customer's certification effort. Six DMA controllers move data between the 12-bit 2 MSPS ADC and memory without CPU involvement, freeing the 16 MIPS core to run the safety diagnostic loop. Compared to a discrete MCU plus external watchdog, the integrated FuSa peripherals cut BOM cost by roughly 30% and shrink PCB area below 25x25 mm.
Recommandé
BLDC / PMSM Motor Drive
For sensorless or Hall-sensor BLDC and PMSM motor control, the PIC18F57Q43T-I/6LX delivers three independent 16-bit dual PWMs producing six high-resolution PWM outputs ideal for three-phase inverter FET drive. The 64 MHz core executes Field-Oriented Control (FOC) state machines with 16 MIPS headroom, while the on-chip three op-amps condition phase-current shunt signals directly without external amplifiers. Combined with the 12-bit 2 MSPS ADC, the device supports 50 kHz PWM switching frequencies with sub-microsecond current-loop latency. Engineers use PIC's AN1078 application note with this MCU for free FOC firmware reference code.
Recommandé
IoT Sensor Node
Battery-powered IoT sensor nodes benefit from the PIC18F57Q43T-I/6LX's nanoWatt XLP technology, which keeps sleep current below 50 nA with full RAM retention, extending coin-cell life past 10 years in periodic-sampling duty cycles. The 12-bit ADC, 12-bit DAC, three op-amps, and 1 KB EEPROM allow direct interface to analog sensors (temperature, pressure, gas) without external signal-chain ICs. Six DMA controllers wake the core only when a configurable threshold or timer triggers, enabling event-driven acquisition. Compared to an ARM Cortex-M0+ alternative, this PIC's deterministic interrupt latency suits LoRaWAN / Sigfox class-A timing-sensitive stacks.
Recommandé
LED Lighting Controller
Architectural and horticultural LED lighting controllers leverage the PIC18F57Q43T-I/6LX's six 16-bit PWM channels to drive up to six independent LED strings with 16-bit color-mixing resolution per channel. The Core Independent Peripheral (CIP) chain links a PWM to the ADC via DMA, enabling closed-loop lumen or photosynthetic photon flux feedback without CPU intervention. Peripheral Pin Select assigns the PWMs to any GPIO, simplifying PCB routing across different LED board sizes. The wide 1.8 V to 5.5 V supply range supports direct operation from 24 V converted rails or 3.3 V digital logic supplies.
Recommandé
USB HID / CDC Device
The PIC18F57Q43T-I/6LX supports USB 2.0 Full-Speed device mode through its integrated USB SIE and on-chip 3.3 V USB voltage regulator, enabling plug-and-play HID, CDC, or vendor-class devices without an external PHY. The 64 MHz core executes USB protocol stacks and user application code simultaneously, while 8 KB SRAM buffers HID reports or CDC serial streams. Peripheral Pin Select routes D+/D- to any GPIO pair, simplifying PCB layout for compact dongles. The 128 KB Flash easily accommodates composite USB stacks (HID + CDC + vendor) with bootloader capability for field firmware updates.
Recommandé
Battery-Powered Portable Instrument
Handheld instruments such as digital multimeters, environmental meters, and medical-point-of-care devices rely on the PIC18F57Q43T-I/6LX for its 12-bit ADC accuracy, three op-amps for analog front-end signal conditioning, and nanoWatt XLP sleep modes for extended battery life. The 1 KB EEPROM stores calibration constants without external memory, while 128 KB Flash hosts user-interface graphics and measurement routines. The 48-pin VQFN (6x6 mm) keeps PCB footprint small enough for pocket-size enclosures, and the 1.8 V to 5.5 V range supports direct 2xAA or Li-ion operation.
Recommandé
Automotive Body & Comfort Module
Although not AEC-Q100 qualified, the PIC18F57Q43T-I/6LX is widely used in non-safety automotive body modules such as interior lighting, seat controllers, and HVAC blend-door actuators where its rich peripheral set and 64 MHz performance accelerate development. The 12-bit ADC reads multiple thermistor and potentiometer inputs for climate control, while six PWMs drive motor speed and LED brightness. The peripheral pin select gives designers flexibility to reassign functions across vehicle variants without PCB changes. For safety-critical automotive, Microchip recommends the PIC18F-K42-Q1 or dsPIC33A-Q1 families with AEC-Q100 grade 1 qualification.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F57Q43T-I/6LX — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F57Q43T-I/PT | PIC18F57Q43-E/6LX | PIC18F56Q43T-I/PT | PIC18F47Q43-E/PT |
|---|---|---|---|---|---|
| Package | VQFN-48 (6x6) | TQFP-48 - 9x9 mm | VQFN-48 (6x6) - same | TQFP-48 | TQFP-44 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 128 KB | 56 KB | 128 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Pin Count | 48 | 48 | 48 | 48 | 44 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +125C (Extended) |
| DMA Controllers | 6 | 6 | 6 | 6 | 6 |
| PWM Channels | 6 (3x 16-bit dual) | 6 (3x 16-bit dual) | 6 (3x 16-bit dual) | 6 (3x 16-bit dual) | 6 (3x 16-bit dual) |
| Functional Safety Library | Yes (Class B, FuSa) | Yes (Class B, FuSa) | Yes (Class B, FuSa) | Yes (Class B, FuSa) | Yes (Class B, FuSa) |
Principaux différenciateurs
- Highest-density 48-pin VQFN in the Q43 family (vs PIC18F47Q43-E/PT)
- Functional Safety (FuSa) Class B library integrated (vs PIC18F57K42-I/PT)
- Six DMA controllers offload CPU (vs PIC18F56Q43T-I/PT)
Notes de conception
Solder the VQFN-48 exposed thermal pad (EP) to a continuous ground copper pour with thermal vias (5-9 vias in a 3x3 grid, 0.3 mm drill, 0.6 mm pad) to dissipate heat from internal core activity. Without adequate EP soldering, junction-to-ambient thermal resistance exceeds 60 C/W, which can derate reliable operation in sealed industrial enclosures. Estimated: with EP soldered to 1 sq inch 2 oz copper, theta_JA drops to ~28 C/W, supporting sustained 64 MHz operation across -40C to +85C ambient.
Decouple each VDD/VSS pair with a 100 nF X7R ceramic capacitor placed within 3 mm of the package pin, plus a bulk 4.7 uF tantalum or ceramic capacitor on the main VDD rail. The PIC18F57Q43T-I/6LX has multiple VDD/VSS pins distributed around the package perimeter; place one decoupling capacitor per pair. Estimated: total bulk capacitance of at least 10 uF is recommended for switching PWM loads and ADC reference stability.
Route analog and digital signals on separate PCB layers when possible, and place the AVSS/AVDD pair adjacent to the analog peripherals (ADC, DAC, op-amp) with a ferrite bead or pi-filter between digital VDD and analog AVDD. The Q43 family's 12-bit ADC achieves 2 MSPS but is sensitive to digital switching noise; physically separate analog ground from digital ground and join them at a single star point near the MCU. Peripheral Pin Select (PPS) mapping should be locked early in firmware to prevent accidental remapping during in-circuit programming.
Do not forget to configure unused GPIO as digital outputs driving low (not high-Z) to minimize current leakage in nanoWatt sleep modes. Floating inputs can source 1-5 uA each, destroying the 50 nA sleep-current budget. Always enable the watchdog timer (WDT) with a reasonable postscaler for unattended industrial deployments. The ICSP pins (RB6/RB7) must remain accessible; if your PCB layout covers them, add test-pad access for factory programming and field firmware updates.
Informations de conformité
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC18F-K42-Q1 or dsPIC33A-Q1 families for AEC-Q100 automotive safety applications. Halogen-free status not explicitly stated in source data.
