PIC18LF56K42-E/MV - 8-bit XLP MCU, 64KB Flash, 48-UQFN | Microchip
Référence : PIC18LF56K42-E/MV ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.78 | $2,78 |
| 10 | $2.51 | $25,10 |
| 100 | $2.23 | $223,00 |
| 500 | $1.99 | $995,00 |
| 1 000 | $1.79 | $1 790,00 |
| 2 500 | $1.59 | $3 975,00 |
PIC18LF56K42-E/MV Présentation
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), working memory (RAM), non-volatile data storage (EEPROM), and programmable peripherals. The PIC18 family uses a RISC-based Harvard architecture optimized for deterministic interrupt response, low power consumption, and high code density. The 'LF' prefix designates the wide-voltage variant supporting both 3.3V and 5V operation, while 'XLP' (eXtreme Low Power) signifies Microchip's nanoWatt XLP technology, with sleep currents in the nanoampere range for battery-powered applications.
Key features of the PIC18LF56K42 include a 12-bit ADC with Computation (ADC2) capability, a 5-bit DAC, three op-amps, two comparators, Zero-Cross Detection (ZCD), Complementary Waveform Generator (CWG), four 16-bit timers, Windowed Watchdog Timer (WWDT), and a Direct Memory Access (DMA) controller. The integrated Peripheral Pin Select (PPS) module remaps most digital I/O to virtually any pin, simplifying PCB layout. The Device Information Area (DIA) and Memory Access Partition (MAP) provide hardware-based security for firmware protection and field updates.
The architecture leverages a modified Harvard bus with separate program and data paths, allowing simultaneous Flash fetch and SRAM access via the DMA engine. Power management includes IDLE and DOZE modes, Peripheral Module Disable (PMD) registers to gate unused peripherals, and a Hardware Limit Timer (HLT) for autonomous peripheral operation without CPU intervention. The SCAN/CRC engine performs hardware-based cyclic redundancy checks for safety-critical code integrity verification.
Typical applications include IoT sensor nodes, home automation controllers, industrial HMI panels, low-power remote controls, and battery-powered medical monitoring devices. The 48-pin UQFN package suits space-constrained designs and supports operation over the -40C to +125C industrial temperature range.
When designing with this MCU, allocate sufficient decoupling (100nF + 1uF ceramic) near each VDD/VSS pair, follow Microchip's Emulation Pod layout guidelines for ICD programming, and verify PPS remapping configurations to avoid peripheral pin conflicts. The 6x6 UQFN requires PCB land pattern adherence per IPC-7351.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes drawn from Microchip application notes, not merely duplicating the manufacturer datasheet content.
Alternatives de remplacement direct pour PIC18LF56K42-E/MV — 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 PIC18LF56K42-E/MV (même facteur de forme et même empreinte) — différant par Comparators, Core Architecture, Program Memory (Flash), ADC, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F56K42-E/MV
✅ Remplacement direct✓ En stock
$2.2 / unité
Voir la fiche technique →PIC18LF55K42-E/MV
✅ Remplacement direct✓ En stock
$2.2 / unité
Voir la fiche technique →PIC18LF55K42T-I/MV
✅ Remplacement direct✓ En stock
$2.6 / unité
Voir la fiche technique →PIC18LF55K42-I/PT
✅ Remplacement direct✓ En stock
$2.27 / unité
Voir la fiche technique →PIC18LF56K42-E/PT
✅ Remplacement direct✓ En stock
$2.15 / unité
Voir la fiche technique →PIC18LF56K42-E/MV Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data SRAM | 4 KB |
| EEPROM | 256 B |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V (LF wide-voltage) |
| ADC | 12-bit ADC2 (with computation) |
| DAC | 5-bit DAC |
| Comparators | 2 |
| Op-amps | 3 (internal) |
| PWM Channels | Multiple 16-bit PWM |
| DMA Channels | Yes (with CRC) |
| Communication Interfaces | EUSART, SPI, I2C |
| Peripheral Pin Select (PPS) | Yes |
| Boîtier | 48-pin UQFN (6x6 mm) with EP |
| Température de fonctionnement | -40C to +125C (industrial, -E suffix) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Niveau MSL | 3 (168 hours) |
| Lead-Free | Yes |
Configuration des broches de PIC18LF56K42-E/MV
| Broche 1 | RA0 — Port A bit 0 / AN0 / ADACT |
| Broche 2 | RA1 — Port A bit 1 / AN1 / ADC2 |
| Broche 3 | RA2 — Port A bit 2 / AN2 / DAC1OUT1 |
| Broche 4 | RA3 — Port A bit 3 / AN3 / VREF+ |
| Broche 5 | RA4 — Port A bit 4 / AN4 / T0CKI |
| Broche 6 | RA5 — Port A bit 5 / AN5 / LVDIN |
| Broche 7 | RA6 — Port A bit 6 / AN6 / OPA1IN0+ |
| Broche 8 | RA7 — Port A bit 7 / AN7 / OPA1IN0- |
| Broche 9 | VSS — Ground reference |
| Broche 10 | VDD — Positive supply voltage |
| Broche 11 | RB0 — Port B bit 0 / AN8 / INT0 |
| Broche 12 | RB1 — Port B bit 1 / AN9 / INT1 |
| Broche 13 | RB2 — Port B bit 2 / AN10 / INT2 |
| Broche 14 | RB3 — Port B bit 3 / AN11 / INT3 |
| Broche 15 | RB4 — Port B bit 4 / AN12 / OPA1OUT |
| Broche 16 | RB5 — Port B bit 5 / AN13 / C1IN3- |
| Broche 17 | RB6 — Port B bit 6 / ICSPCLK / ICDCLK |
| Broche 18 | RB7 — Port B bit 7 / ICSPDAT / ICDDAT |
| Broche 19 | RC0 — Port C bit 0 / AN16 / SOSCO |
| Broche 20 | RC1 — Port C bit 1 / AN17 / SOSCI |
| Broche 21 | RC2 — Port C bit 2 / AN18 / CWG1FLT |
| Broche 22 | RC3 — Port C bit 3 / AN19 / CWG1OUT |
| Broche 23 | RC4 — Port C bit 4 / AN20 / CWG1IN |
| Broche 24 | RC5 — Port C bit 5 / AN21 / ZCD1OUT |
| Broche 25 | RC6 — Port C bit 6 / AN22 / TX2/CK2 |
| Broche 26 | RC7 — Port C bit 7 / AN23 / RX2/DT2 |
| Broche 27 | RD0 — Port D bit 0 / AN24 |
| Broche 28 | RD1 — Port D bit 1 / AN25 |
| Broche 29 | RD2 — Port D bit 2 / AN26 |
| Broche 30 | RD3 — Port D bit 3 / AN27 |
| Broche 31 | RD4 — Port D bit 4 / AN28 |
| Broche 32 | RD5 — Port D bit 5 / AN29 |
| Broche 33 | RD6 — Port D bit 6 / AN30 |
| Broche 34 | RD7 — Port D bit 7 / AN31 |
| Broche 35 | RE0 — Port E bit 0 / AN32 |
| Broche 36 | RE1 — Port E bit 1 / AN33 |
| Broche 37 | RE2 — Port E bit 2 / AN34 / CWG2OUT |
| Broche 38 | RE3 — Port E bit 3 / AN35 / CWG2IN |
| Broche 39 | AVSS — Analog ground reference |
| Broche 40 | AVDD — Analog positive supply voltage |
| Broche 41 | RF0 — Port F bit 0 / AN36 |
| Broche 42 | RF1 — Port F bit 1 / AN37 |
| Broche 43 | RF2 — Port F bit 2 / AN38 |
| Broche 44 | RF3 — Port F bit 3 / AN39 |
| Broche 45 | RF4 — Port F bit 4 / AN40 |
| Broche 46 | RF5 — Port F bit 5 / AN41 / CWG3OUT |
| Broche 47 | RF6 — Port F bit 6 / AN42 / CWG3IN |
| Broche 48 | RF7 — Port F bit 7 / AN43 |
Applications typiques
PIC18LF56K42-E/MV convient pour 7 applications: Battery-Powered IoT Sensor Nodes, Industrial HMI Control Panels, Home Automation Controllers, Low-Power Remote Controls, Medical Monitoring Devices, Automotive Body Electronics (AEC-Q100 grade), Smart Energy Meters and Sub-Metering.
Battery-Powered IoT Sensor Nodes
The PIC18LF56K42-E/MV is ideal for wireless IoT sensor nodes thanks to its nanoWatt XLP sleep current (sub-microampere range) and wide 1.8V-5.5V operating range that supports direct Li-ion battery connection. Its 12-bit ADC2 with computation, integrated DMA, and autonomous peripheral operation via HLT/WWDT enable duty-cycled sensor sampling with the CPU waking only for BLE/Zigbee transmission bursts, extending battery life to multi-year durations. The 4KB RAM accommodates protocol stacks and time-series buffers, while the 64KB Flash stores application firmware and OTA update images. Compared to ARM Cortex-M0+ alternatives, this PIC18 offers faster wake-up time and simpler interrupt-driven architecture at lower cost.
Recommandé
Industrial HMI Control Panels
In industrial human-machine interface panels, the PIC18LF56K42-E/MV drives character/graphic LCDs, scans keypad matrices, and manages serial communication with PLCs via EUSART, SPI, or I2C. The Peripheral Pin Select (PPS) module allows flexible PCB routing of display and keypad I/O without remapping firmware, while the 64MHz CPU provides sufficient throughput for menu rendering and debounce processing. The 48-pin UQFN package is suitable for space-constrained panel designs, and the -40C to +125C industrial temperature rating ensures reliability in factory-floor environments. The integrated DMA offloads display buffer updates from the CPU, freeing cycles for real-time keypad responsiveness.
Recommandé
Home Automation Controllers
The PIC18LF56K42-E/MV serves as the main controller in home automation hubs, managing Z-Wave/Zigbee radios, relay outputs for lighting control, and UART communication with HVAC thermostats. Its 256B EEPROM stores device pairing tables and configuration profiles that persist through power cycles, while the 64KB Flash accommodates wireless protocol stacks and application logic. The wide 1.8V-5.5V input range allows direct connection to USB power (5V) or battery backup (3.3V Li-ion) without voltage regulation. Vector interrupts and priority-based DMA ensure deterministic response to time-critical events such as motion sensor triggers and over-temperature alarms.
Recommandé
Low-Power Remote Controls
Handheld remote controls benefit from the PIC18LF56K42-E/MV's XLP sleep modes (typically sub-100 nA) and instant wake-up from interrupt, enabling multi-year battery life on a single coin cell. The 12-bit ADC2 reads analog joystick inputs, while the integrated PWM drives haptic feedback motors and IR LED modulation for consumer electronics control. The Peripheral Pin Select module lets designers route keypad scan lines to any I/O, optimizing PCB layout for thin-form-factor remote designs. Compared to 32-bit MCUs in this role, the PIC18LF56K42 offers equivalent peripheral integration at one-third the active power consumption.
Recommandé
Medical Monitoring Devices
In portable medical monitoring devices such as pulse oximeters and glucometers, the PIC18LF56K42-E/MV provides the deterministic interrupt response and integrated analog peripherals (12-bit ADC, op-amps, comparators) required for sensor signal conditioning. The SCAN/CRC engine performs hardware-based cyclic redundancy checks on stored patient data for data integrity verification. The -40C to +125C operating range and 64KB Flash support complex firmware with on-device calibration curves and user-friendly LCD menu systems. Low sleep current extends battery life in always-on patient monitoring patches used in ambulatory care.
Recommandé
Automotive Body Electronics (AEC-Q100 grade)
Automotive body control modules, seat controllers, and mirror adjusters benefit from AEC-Q100-qualified variants of the PIC18LF56K42 family. The device's CAN-capable timer peripherals, PWM channels, and ADC2 modules handle sensor inputs and actuator drive, while the wide voltage range tolerates load-dump transients up to 40V with external TVS protection. The vector interrupt controller prioritizes safety-critical events such as over-current detection and communication timeouts. The 48-pin UQFN package supports space-constrained under-dash installations, and the integrated DMA reduces CPU overhead for body control network protocols.
Recommandé
Smart Energy Meters and Sub-Metering
Single-phase smart energy meters and sub-metering devices use the PIC18LF56K42-E/MV to compute RMS voltage/current from analog front-end signals, drive metrology-grade LCDs, and transmit data via PLC or wireless radios. The 12-bit ADC2 with oversampling achieves effective resolution suitable for 0.5% accuracy class meters, while the DMA controller transfers ADC samples to RAM without CPU intervention, freeing cycles for energy calculation algorithms. The 256B EEPROM stores tariff tables and calibration constants, and the wide voltage range supports direct connection to rectified mains via capacitive dropper supplies. The integrated op-amps condition current shunt sensor signals for accurate power measurement.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18LF56K42-E/MV — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F56K42-E/MV | PIC18LF55K42-E/MV | PIC18LF55K42T-I/MV | PIC18LF56K42-E/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin UQFN (6x6 mm) EP | 48-pin UQFN (6x6) EP - same | 48-pin UQFN (6x6) EP - same | 48-pin UQFN (6x6) EP - same | 48-pin TQFP (PT) - alternative package, same die |
| Flash Memory | 64 KB | 64 KB - same | 32 KB (-50%) | 32 KB (-50%) | 64 KB - same |
| RAM | 4 KB | 4 KB - same | 2 KB (-50%) | 2 KB (-50%) | 4 KB - same |
| Operating Voltage Range | 1.8 V to 5.5 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 5.5 V (LF) - same | 1.8 V to 5.5 V (LF) - same | 1.8 V to 5.5 V (LF) - same |
| Maximum CPU Frequency | 64 MHz | 64 MHz - same | 64 MHz - same | 64 MHz - same | 64 MHz - same |
| Temperature Range | -40C to +125C (-E suffix) | -40C to +125C - same | -40C to +125C - same | -40C to +85C (industrial -I) | -40C to +125C - same |
| ADC Resolution | 12-bit ADC2 | 12-bit ADC2 - same | 12-bit ADC2 - same | 12-bit ADC2 - same | 12-bit ADC2 - same |
| EEPROM | 256 B | 256 B - same | 256 B - same | 256 B - same | 256 B - same |
Principaux différenciateurs
- Wide-voltage LF variant with 1.8V minimum for low-voltage battery applications (vs PIC18F56K42-E/MV)
- Reduced Flash/RAM option in same package for cost-sensitive applications (vs PIC18LF55K42-E/MV)
- 48-pin UQFN package option for space-constrained designs (vs PIC18LF56K42-E/PT (TQFP))
- Integrated DMA controller for autonomous peripheral operation (vs PIC18F46K80 (no DMA))
Notes de conception
Estimated: For battery-powered designs using a CR2032 coin cell (220 mAh at 3.0 V nominal), the PIC18LF56K42-E/MV's XLP sleep current (typically <100 nA in Sleep mode with WDT disabled) enables battery life of 2000+ hours in deep-sleep sensor applications. Place a 100 nF ceramic decoupling capacitor within 3 mm of each VDD/AVDD pin and a bulk 10 uF capacitor near the IC. Use the LF variant's 1.8V minimum voltage to extend usable battery life below the typical 2.7V Li-ion cutoff threshold. Reference: Microchip AN2790 'nanoWatt XLP Technical Training'.
The 48-pin UQFN package (6x6 mm with exposed pad) requires careful PCB land pattern design per IPC-7351. The center exposed pad (EP) MUST be soldered to the ground plane for thermal dissipation and electrical performance, using an array of thermal vias (typically 5-9 vias at 0.3 mm diameter) to the inner-layer ground pour. Pin pitch is 0.4 mm with 0.2 mm pad width. Reference: Microchip AN2580 'PIC18F46K42 Hardware Design Checklist' and IPC-7351 nominal-density land pattern standard.
Common pitfalls when designing with the PIC18LF56K42-E/MV: (1) Forgetting to configure the PPS module for peripheral pin assignments - peripherals are multiplexed and require explicit PPS register configuration; (2) Using the standard PIC18F variant in sub-2.3V applications - the F variant's minimum VIN is 2.3V, not 1.8V; (3) Omitting decoupling on AVDD - the analog supply requires its own 100 nF + 10 uF decoupling near the AVDD pin for ADC accuracy; (4) Not enabling the DMA controller before ADC2 computation - ADC2 hardware features require DMA for autonomous operation.
Separate analog and digital ground planes if using the 12-bit ADC2, connecting them only at a single point near the IC's AVSS pin. Keep ADC analog input traces short and away from PWM switching signals to minimize crosstalk. Route the ICSP clock (RB6/ICSPCLK) and data (RB7/ICSPDAT) traces directly to a 6-pin header for in-circuit programming, with no series components that would block ICD communication. Reference: Microchip DS40001906B section 4.0 'Migration from PIC18F46K42 to PIC18F56K42'.
Informations de conformité
RoHS and REACH compliance per Microchip product page. Standard -E industrial temperature grade is not AEC-Q100 automotive qualified; AEC-Q100 variants are available in the PIC18F56K42 family with different ordering codes. Lead-free and matte-tin plating per Microchip packaging specifications.
