PIC18LF47K40T-I/MV - 64MHz 128KB Flash 8-bit MCU | Microchip
Référence : PIC18LF47K40T-I/MV ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.45 | $3,45 |
| 10 | $3.18 | $31,80 |
| 100 | $2.85 | $285,00 |
| 500 | $2.55 | $1 275,00 |
| 1 000 | $2.32 | $2 320,00 |
PIC18LF47K40T-I/MV Présentation
A PIC18 microcontroller is an 8-bit RISC-architecture MCU in the broader category of microcontrollers -> embedded controllers -> integrated circuits. The PIC18 family uses a Harvard architecture with separate program and data buses, optimized for C-compiled code. The LF sub-family denotes the low-voltage variant (1.8 V to 3.6 V), while the K-series adds high-performance analog and CIPs.
Key features include a 10-bit ADC with Computation (ADCC) supporting Capacitive Voltage Divider (CVD) for touch sensing, a 5-bit DAC, multiple comparators, PWM/CCP/CWG peripherals, a hardware limit timer (HLT), windowed watchdog timer (WWDT), SCAN/CRC, zero-cross detection (ZCD), Peripheral Pin Select (PPS), and an EUSART interface. It supports up to 36 I/O pins and operates across -40C to +85C.
The CIPs let timers, PWMs, and communication peripherals run without CPU intervention, dramatically reducing active time and average current draw. Combined with XLP sleep currents in the sub-microamp range, this device fits energy harvesting and battery-powered designs.
Typical applications include capacitive touch user interfaces, low-power sensor nodes, home appliances, motor control (BLDC/PMSM with CWG), automotive body modules (non-safety), industrial control panels, and general-purpose embedded control. Designers migrating from older PIC16/PIC18 devices benefit from a streamlined instruction set and dual-capture compare.
Design tip: a 0.1uF bypass capacitor must be placed within 5 mm of VDD, with separate bulk capacitance if the application drives high-current peripherals. PPS allows flexible signal routing but requires explicit pin configuration in code.
This page synthesizes distributor pricing, drop-in same-package alternatives, and engineering design notes that complement the manufacturer datasheet for faster engineer evaluation.
Alternatives de remplacement direct pour PIC18LF47K40T-I/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 PIC18LF47K40T-I/MV (même facteur de forme et même empreinte) — différant par ADC, Package, Operating Temperature, DAC, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18LF47K40-I/MV
✅ Remplacement direct✓ En stock
$2.02 / unité
Voir la fiche technique →PIC18F47K40-I/MV
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18LF46K40-I/MV
✅ Remplacement direct✓ En stock
$1.78 / unité
Voir la fiche technique →PIC18F46K40-I/MV
✅ Remplacement direct✓ En stock
$2.15 / unité
Voir la fiche technique →PIC18LF47K40-E/MV
✅ Remplacement direct✓ En stock
$1.9 / unité
Voir la fiche technique →PIC18LF47K40T-I/MV Valeurs maximales et caractéristiques électriques
| Core | PIC18 RISC 8-bit |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data RAM | 4 KB (3.53 KB usable per datasheet) |
| Data EEPROM | 256 B |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 36 |
| ADC | 10-bit ADC with Computation (ADCC), supports CVD |
| DAC | 5-bit |
| Comparators | Yes |
| PWM / CCP / CWG | Yes |
| Hardware Limit Timer (HLT) | Yes |
| Windowed Watchdog (WWDT) | Yes |
| SCAN/CRC | Yes |
| Zero-Cross Detection (ZCD) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Communication | EUSART |
| XLP (eXtreme Low Power) | Yes |
| Température de fonctionnement | -40C to +85C (Industrial, I grade) |
| Boîtier | 40-pin UQFN (5x5 mm) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de PIC18LF47K40T-I/MV
| Broche 1 | RA0 — Bidirectional I/O / analog / PPS-capable |
| Broche 2 | RA1 — Bidirectional I/O / analog |
| Broche 3 | RA2 — Bidirectional I/O / analog |
| Broche 4 | RA3 — Bidirectional I/O / analog |
| Broche 5 | RA4 — Bidirectional I/O / analog |
| Broche 6 | RA5 — Bidirectional I/O / analog |
| Broche 7 | RA6 — Bidirectional I/O / analog |
| Broche 8 | RA7 — Bidirectional I/O / analog |
| Broche 9 | VSS — Ground reference |
| Broche 10 | RA8 — Bidirectional I/O / analog |
| Broche 11 | RB0 — Bidirectional I/O / interrupt-on-change |
| Broche 12 | RB1 — Bidirectional I/O / interrupt-on-change |
| Broche 13 | RB2 — Bidirectional I/O / interrupt-on-change |
| Broche 14 | RB3 — Bidirectional I/O / interrupt-on-change |
| Broche 15 | RB4 — Bidirectional I/O / interrupt-on-change |
| Broche 16 | RB5 — Bidirectional I/O / interrupt-on-change |
| Broche 17 | RB6 — Bidirectional I/O / ICSPCLK / ICD |
| Broche 18 | RB7 — Bidirectional I/O / ICSPDAT / ICD |
| Broche 19 | VSS — Ground reference |
| Broche 20 | VDD — Positive supply (1.8 V to 3.6 V) |
| Broche 21 | RC0 — Bidirectional I/O |
| Broche 22 | RC1 — Bidirectional I/O |
| Broche 23 | RC2 — Bidirectional I/O |
| Broche 24 | RC3 — Bidirectional I/O |
| Broche 25 | RC4 — Bidirectional I/O |
| Broche 26 | RC5 — Bidirectional I/O |
| Broche 27 | RC6 — Bidirectional I/O / TX |
| Broche 28 | RC7 — Bidirectional I/O / RX |
| Broche 29 | RC8 — Bidirectional I/O |
| Broche 30 | RC9 — Bidirectional I/O |
| Broche 31 | VSS — Ground reference |
| Broche 32 | VDD — Positive supply (1.8 V to 3.6 V) |
| Broche 33 | RD0 — Bidirectional I/O |
| Broche 34 | RD1 — Bidirectional I/O |
| Broche 35 | RD2 — Bidirectional I/O |
| Broche 36 | RD3 — Bidirectional I/O |
| Broche 37 | RD4 — Bidirectional I/O |
| Broche 38 | RD5 — Bidirectional I/O |
| Broche 39 | RD6 — Bidirectional I/O |
| Broche 40 | RD7 — Bidirectional I/O / EEPGD |
Applications typiques
PIC18LF47K40T-I/MV convient pour 6 applications: Capacitive Touch User Interface, Low-Power Wireless Sensor Node, BLDC / PMSM Motor Control, Home Appliance Control Board, Industrial Process Sensor Module, Automotive Body Control (non-safety).
Capacitive Touch User Interface
The PIC18LF47K40T-I/MV integrates a 10-bit ADC with Computation (ADCC) that performs Capacitive Voltage Divider (CVD) measurements, replacing an external touch-sensing IC and BOM. Up to 36 touch channels can be scanned via the hardware SCAN peripheral while the CPU sleeps, preserving XLP sub-microamp sleep current for battery-powered remote controls, white-goods panels, and proximity-sensing HMIs. The 64 MHz core provides ample cycles to debounce gestures and run a small GUI state machine.
Recommandé
Low-Power Wireless Sensor Node
XLP technology keeps the PIC18LF47K40T-I/MV active current well below 1 mA at 1 MHz / 1.8 V and sleep current under 1 uA with the Real-Time Clock active. Pair the MCU with an SPI-connected radio and the integrated SCAN/CRC, WWDT, and PPS peripherals handle housekeeping autonomously, extending coin-cell lifetime to months in temperature, humidity, or motion-sensing IoT nodes. The 4 KB RAM buffers sensor data before radio transmission bursts.
Recommandé
BLDC / PMSM Motor Control
The PIC18LF47K40T-I/MV includes dedicated motor-control peripherals: PWM, CCP, and the Complementary Waveform Generator (CWG) for dead-band control of half-bridges. Core Independent Peripherals (CIPs) like the Hardware Limit Timer (HLT) trigger hardware shutdowns within nanoseconds on over-current events, supporting BLDC ceiling fans, small pumps, and appliance motor drives. The 5-bit DAC provides reference voltage for current-sense amplifiers.
Recommandé
Home Appliance Control Board
The PIC18LF47K40T-I/MV's broad peripheral set (EUSART, ADCC, ZCD for AC mains zero-crossing, PWM, comparators) replaces multiple discrete ICs in washing-machine, dishwasher, microwave, and induction-cooktop front panels. ZCD enables zero-cross triac switching to minimize EMI, while the industrial-grade operating range and AEC-Q100 sibling variants allow reuse on the same firmware across consumer and automotive body modules.
Recommandé
Industrial Process Sensor Module
Industrial 4-20 mA loop-powered transmitters benefit from the PIC18LF47K40T-I/MV's 1.8 V operation, 10-bit ADC accuracy, and EUSART for HART-modem or RS-485 bus connection. The WWDT and CRC peripherals deliver IEC 61508 SIL-friendly diagnostic coverage; the 128 KB Flash supports complex linearization and calibration tables for pressure, flow, and level transmitters operating from -40C to +85C in field cabinets.
Recommandé
Automotive Body Control (non-safety)
Body electronics such as lighting controllers, mirror adjusters, seat modules, and HVAC blend-door actuators leverage the PIC18F47K40-I/MV (5V) variant of this device family for direct 12 V battery operation. The same 40-pin UQFN footprint allows code reuse between LF (3.3 V) and F (5 V) versions; the integrated SCAN/CRC and WWDT satisfy automotive software-quality requirements.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18LF47K40T-I/MV — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18LF47K40-I/MV | PIC18F47K40-I/MV | PIC18LF46K40-I/MV |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin UQFN (MV) 5x5 mm | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 64 KB |
| Data RAM | 4 KB | 4 KB | 4 KB | 3.5 KB |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| Max CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| I/O Pins | 36 | 36 | 36 | 36 |
| ADC Resolution | 10-bit ADCC (CVD) | 10-bit ADCC (CVD) | 10-bit ADCC (CVD) | 10-bit ADCC (CVD) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Principaux différenciateurs
- 128 KB Flash / 4 KB RAM in 40-pin UQFN with XLP support (vs PIC18LF46K40-I/MV)
- Low-voltage 1.8 V to 3.6 V operation at 64 MHz (vs PIC18F47K40-I/MV)
- Integrated ADCC with Capacitive Voltage Divider (CVD) (vs PIC18LF46K22-I/ML)
Notes de conception
Place a 0.1 uF decoupling capacitor as close as possible (within 5 mm) to each VDD pin (pins 20 and 32), with a 10 uF bulk capacitor on the same node. The PIC18LF47K40T-I/MV draws sharp transient currents when the HFINTOSC PLL starts up; insufficient decoupling causes spurious resets on VDD droop. Tie unused VDD pins to VDD rather than leaving them floating.
The exposed thermal pad (EP) on the 40-pin UQFN package must be soldered to a PCB pad tied to VSS. Stencil aperture should be a 5x5 array of 0.3 mm dots to ensure correct solder fillet and thermal dissipation. Failing to solder the EP exposes the die to intermittent thermal shutdown under high peripheral switching loads.
PPS must be unlocked via PPSLOCK before re-assigning peripheral outputs to alternate pins; if the lock sequence is incorrect, peripherals appear dead on the new pin and re-enumeration is required after a power cycle. Also note that the -T suffix denotes tape-and-reel packaging - the -I (industrial) and -E (extended) suffixes denote temperature grade, not package.
When using the ADCC in CVD mode for capacitive touch, route sensor traces as short, narrow (0.15 mm) traces over a hatched ground pour to maximize touch sensitivity and reject humidity drift. Add a 1 nF series capacitor on the CVD reference pin to filter environmental baseline noise, and run a per-channel baseline calibration in firmware at startup to compensate for overlay thickness.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Industrial-grade (I) device, not AEC-Q100 qualified; for automotive safety applications use a Q1-graded PIC18 variant.
