PIC18LF65K40-E/MR - 8-Bit 64MHz XLP MCU, 32KB Flash | Microchip
N.º de pieza: PIC18LF65K40-E/MR ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.99 | $3,99 |
| 10 | $3.59 | $35,90 |
| 100 | $3.21 | $321,00 |
| 500 | $2.84 | $1.420,00 |
| 1.000 | $2.55 | $2.550,00 |
PIC18LF65K40-E/MR Descripción general
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/EEPROM/RAM), and configurable peripherals on a single silicon die. PIC18 microcontrollers are mid-range 8-bit MCUs from Microchip that balance low power, deterministic performance, and rich peripheral integration. They sit within the broader hierarchy of MCU -> microcontroller -> embedded processor -> semiconductor, and the XLP sub-family targets battery-powered and energy-harvesting applications through aggressive low-power modes and nanoWatt technology.
Key features of the PIC18LF65K40 include Core Independent Peripherals such as the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), and Windowed Watchdog Timer (WWDT). The device integrates ECAN for industrial networking, a 10-bit ADC with up to 10 channels, 8-bit DAC, comparators, PWM, SMT (Signal Measurement Timer), and Peripheral Pin Select (PPS) for flexible signal routing. Memory comprises 32KB Flash, 2KB RAM, and 256 bytes of EEPROM. The 64-pin VQFN package with 9x9mm body and exposed thermal pad supports high-pin-count applications while enabling surface-mount assembly.
The architecture uses an enhanced Harvard structure with separate program and data buses, allowing simultaneous instruction fetch and data access for sustained throughput. The integrated nanoWatt XLP technology provides ultra-low sleep currents suitable for always-on sensor nodes and IoT edge devices. Hardware CRC, Memory Scan, Zero-Cross Detect, and Hardware CVD (Capacitive Voltage Divider) further reduce host CPU overhead.
Typical applications include industrial sensor interfaces with ECAN connectivity, low-power IoT edge nodes, consumer appliance control panels, building automation, automotive body and interior modules, and battery-powered instrumentation. The wide 1.8V to 3.6V range allows direct connection to a single Li-ion cell or 2x AA batteries.
When designing with this device, prioritize peripheral pin assignment early because the PPS feature must be configured before first use. Place a 100nF decoupling capacitor on each VDD/VSS pair and ensure the exposed thermal pad is soldered to a sufficiently large copper pour for thermal dissipation. The ECAN module requires an external transceiver for physical bus connection.
Alternativas directas para PIC18LF65K40-E/MR — 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 PIC18LF65K40-E/MR (mismo factor de forma y huella) — difiere en Package, Program Memory (Flash), ADC, Core Independent Peripherals, Core Architecture.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18LF65K40-I/MR
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PIC18LF66K40-I/MR
✅ Sustitución directa✓ En stock
$2.81 / unidad
Ver hoja de datos →PIC18F65K40-I/MR
✅ Sustitución directa✓ En stock
$2.3 / unidad
Ver hoja de datos →PIC18F66K40-I/MR
✅ Sustitución directa✓ En stock
$2.68 / unidad
Ver hoja de datos →PIC18LF65K40-E/PT
✅ Sustitución directa✓ En stock
$2.85 / unidad
Ver hoja de datos →PIC18LF65K40-E/MR Valores máximos y características eléctricas
| Core | PIC 8-bit |
| Family | PIC18 XLP 18K |
| CPU Speed | 64 MHz |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 2 KB |
| EEPROM | 256 B |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Rango de temperatura de funcionamiento | -40 C to +125 C (Extended) |
| I/O Pins | Up to 60 (per package) |
| ADC | 10-bit, up to 10 channels |
| DAC | 8-bit, 1 channel |
| Comparators | Yes |
| PWM Modules | Yes |
| ECAN | Yes (integrated) |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals | CLC, CWG, WWDT, SMT |
| Encapsulado | 64-VQFN (9x9) with exposed pad |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 3 (per JEDEC J-STD-020) |
| Estado RoHS | Compliant |
Guía de configuración de pines de PIC18LF65K40-E/MR 64-vqfn (9x9) with exposed pad
Configuración de pines para PIC18LF65K40-E/MR (encapsulado 64-vqfn (9x9) with exposed pad). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para PIC18LF65K40-E/MR.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
PIC18LF65K40-E/MR es adecuado para 6 aplicacións: Industrial CAN Sensor Network, Low-Power IoT Edge Node, Consumer Appliance Control Panel, Building Automation Controller, Automotive Body and Interior Module, Battery-Powered Instrumentation.
Industrial CAN Sensor Network
The PIC18LF65K40-E/MR is well-suited for industrial CAN sensor network nodes because its integrated ECAN peripheral eliminates the need for an external CAN controller, reducing BOM cost and PCB area. With 60 I/O pins and 10-bit ADC channels, the device can directly interface multiple analog sensors (temperature, pressure, flow) while maintaining 32KB of Flash for protocol stacks and sensor-fusion algorithms. The 1.8V-3.6V operating range allows direct connection to 3.3V industrial sensor rails. When paired with an MCP2551 CAN transceiver, the node provides reliable communication on industrial CAN 2.0B networks at bit rates up to 1 Mbps over twisted-pair cabling.
Recomendado
Low-Power IoT Edge Node
The PIC18LF65K40-E/MR excels in battery-powered IoT edge node applications due to its XLP nanoWatt technology and sub-uA sleep currents. The 64-pin VQFN package with exposed pad supports compact sensor boards where the MCU wakes on interrupt, samples an analog sensor via the 10-bit ADC, transmits via ECAN or UART, and returns to deep sleep. Nanoamp-range sleep current enables multi-year battery life on 2x AA cells. The 32KB Flash accommodates LoRaWAN or MQTT-SN protocol stacks with overhead for OTA firmware updates. Hardware CRC and Memory Scan reduce host CPU load during sleep-to-wake transitions.
Recomendado
Consumer Appliance Control Panel
The PIC18LF65K40-E/MR fits consumer appliance control panel designs because of its wide operating voltage (1.8V-3.6V), extended temperature range (-40C to +125C), and rich PWM/timer peripheral set for motor, valve, and display control. The integrated CWG (Complementary Waveform Generator) drives half-bridges for switched-mode power or motor drivers without CPU intervention, while the SMT (Signal Measurement Timer) precisely measures sensor pulse widths for flow meters or humidity sensors. The 64-VQFN package supports slim industrial designs and the exposed pad ensures thermal dissipation for panel-backlight driving applications.
Recomendado
Building Automation Controller
The PIC18LF65K40-E/MR supports building automation controller applications including HVAC zone controllers, lighting controllers, and access panels, thanks to its ECAN networking capability and CLC (Configurable Logic Cell) peripheral for implementing custom glue logic without external gates. The CLC combines onboard comparators and timer outputs to create smart fault-detection circuits for over-current and under-voltage events. The 256-byte EEPROM stores user settings and calibration constants across power cycles. With Peripheral Pin Select, signal routing can be optimized post-PCB design, accelerating design iterations.
Recomendado
Automotive Body and Interior Module
The PIC18LF65K40-E/MR (extended temperature grade -40C to +125C) is well-suited for non-safety automotive body and interior modules such as seat controllers, mirror adjusters, and interior lighting hubs. The wide operating voltage supports 12V automotive battery rails after a 3.3V LDO. ECAN connectivity enables integration into the vehicle CAN bus for diagnostic and command traffic, while PWM modules drive motors and dimmable LEDs. The hardware WWDT (Windowed Watchdog Timer) provides functional safety monitoring required for body-electronics modules. Note: This grade is not AEC-Q100 qualified - the AEC-Q100 K40 variant should be chosen for safety-relevant modules.
Recomendado
Battery-Powered Instrumentation
The PIC18LF65K40-E/MR is a strong fit for handheld and portable instrumentation including digital multimeters, environmental loggers, and field-test equipment. The XLP technology provides sub-uA sleep current for shelf-life extension, and the 10-bit ADC with multiple channels enables direct measurement of voltage, current, and resistance via external signal conditioning. The 32KB Flash stores calibration tables and measurement procedures, while the 2KB RAM buffers measurement data before display or USB transmission. The exposed thermal pad maintains thermal stability for precise analog measurements over varying ambient conditions.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18LF65K40-E/MR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18LF65K40-I/MR | PIC18LF66K40-I/MR | PIC18F65K40-I/MR | PIC18F66K40-I/MR | PIC18LF65K40-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (9x9) with exposed pad (MR) | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same |
| Flash Program Memory | 32 KB | 32 KB | 64 KB | 32 KB | 64 KB | 32 KB |
| RAM | 2 KB | 2 KB | 4 KB | 2 KB | 4 KB | 2 KB |
| Operating Voltage | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| CPU Speed | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Temperature Grade | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C |
| ECAN | Yes | Yes | Yes | Yes | Yes | Yes |
Diferenciadores clave
- XLP nanoWatt technology with sub-100nA deep sleep current (frente a PIC18F65K40-I/MR)
- Extended -40C to +125C temperature grade (frente a PIC18LF65K40-I/MR)
- Integrated ECAN with full CAN 2.0B support (frente a PIC18LF46K40-I/PT (40-pin variant))
Notas de diseño
Place a 100nF ceramic decoupling capacitor on each VDD/VSS pair, located within 2mm of the corresponding pin per the Microchip datasheet layout guidelines. The PIC18LF65K40-E/MR operates from 1.8V to 3.6V; a low-dropout regulator such as MCP1700 is recommended for 12V or higher input rails to minimize quiescent current. Enable the internal brown-out reset (BOR) to prevent undefined execution during supply voltage dips below 1.8V. Estimated: total power consumption at 64MHz with all peripherals active is approximately 15mA; in deep sleep this drops to under 100nA thanks to XLP nanoWatt technology.
The 64-VQFN package features an exposed thermal pad that MUST be soldered to a ground pour of at least 1 square inch (6.45 cm^2) of copper to meet the datasheet's thermal resistance specification. Without adequate thermal dissipation, the junction temperature can exceed 125C in enclosed applications at high CPU load. For continuous full-speed (64MHz) operation, verify junction temperature with a thermal probe or by reading the on-chip temperature indicator diode. The exposed pad also serves as the primary low-impedance ground path for digital switching noise.
PIC18 K40-series devices require explicit PPS (Peripheral Pin Select) configuration before peripherals (UART, SPI, I2C, PWM output) will function on physical pins. A common mistake is to assume default pin mapping - the PPS registers must be unlocked, configured, and locked in firmware startup. Also note that the LF variant operates only to 3.6V: connecting 5V signals directly to GPIO will damage the MCU. Use a level translator or choose the PIC18F65K40 (5V tolerant) for mixed-voltage systems. The ECAN module requires configuration of the CiCFG1/CiCFG2/CiCFG3 registers for the desired bit rate before bus activity.
Route the ECAN differential signals (CANTX/CANRX) as a 100-ohm differential pair with impedance matching, keeping trace length under 100mm to minimize reflections. Decouple the MCP2551 (or equivalent) CAN transceiver with a 100nF ceramic capacitor placed within 3mm of its VDD pin. For the analog ADC inputs, isolate the analog ground pour from the digital ground using a single-point connection (star ground) near the MCU's AVSS pin to avoid digital switching noise corrupting ADC measurements. The 10-bit ADC achieves best linearity with a 10us acquisition time and an external buffer amplifier for high-impedance sources.
Información de cumplimiento
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose the AEC-Q100 K40 automotive variant for safety-relevant automotive modules. MSL Level 3 per JEDEC J-STD-020.
