PIC18LF4610-I/ML - 8-Bit MCU 64KB Flash 40MHz QFN-44 | Microchip
N.º da peça: PIC18LF4610-I/ML ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.95 | $7,95 |
| 10 | $7.18 | $71,80 |
| 100 | $6.4 | $640,00 |
| 500 | $5.74 | $2.870,00 |
| 1.000 | $5.12 | $5.120,00 |
PIC18LF4610-I/ML Visão geral
A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and programmable I/O peripherals. The PIC18F family is Microchip's high-performance 8-bit architecture with a 16-bit instruction word, a hardware multiplier, a paged memory model and interrupt priority levels, positioned between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 families. MCUs sit inside the broader category of embedded computing, sharing the hierarchy MCU -> microcontroller -> embedded processor -> semiconductor. They are the central decision-making element in nearly every embedded product, executing firmware that reads sensors, drives actuators and manages communications.
Key features of the PIC18LF4610 include 36 digital I/O pins arranged across multiple ports, a 10-bit ADC with up to 13 channels and auto-acquisition, two analog comparators, two CCP (Capture/Compare/PWM) modules, one Enhanced CCP module, an 8-bit/16-bit Timer0 with programmable prescaler, three additional 16-bit timers, a hardware USART with LIN support, MSSP (SPI/I2C) and a Parallel Slave Port. The device includes an ICD (In-Circuit Debugger) interface for MPLAB development tools. nanoWatt Technology provides multiple idle, sleep and run modes with current consumption down to microampere levels, making the part suitable for battery-powered systems.
Architecturally, the PIC18LF4610 uses a 16-bit instruction word with an 8-bit data path and a modified Harvard bus, a 31-level deep hardware stack, and a hardware 8x8 multiply. The integrated low-voltage detect (LVD) circuit and brown-out reset (BOR) provide robust supply supervision, while the LF variant extends the supply range down to 2.0V for 2-cell battery operation. The QFN-44 exposed pad improves thermal dissipation and provides a low-inductance ground connection.
Typical applications include industrial control panels, building automation nodes, motor control subsystems, smart sensor hubs, low-power data loggers, and battery-backed instrument clusters. The wide 2.0V-5.5V supply range also supports portable medical devices and remote sensor nodes where energy harvesting or coin-cell operation is desired. When designing with this device, plan the analog reference voltage (AVdd/AVss) and decoupling network carefully, and use MPLAB X IDE with the XC8 compiler for full hardware utilization including the ICD interface.
Alternativas drop-in para PIC18LF4610-I/ML — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18LF4610-I/ML (mesmo formato e footprint) — diferindo em Package, Timers, ADC, Program Memory (Flash), Core Architecture.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18LF4620-I/ML
✅ Drop-In✓ Em estoque
$8.65 / unidade
Ver ficha técnica →PIC18F4610-I/ML
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF4620-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.45 / unidade
Ver ficha técnica →PIC18F46K22-I/ML
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$3.08 / unidade
Ver ficha técnica →PIC18LF45K80-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.1 / unidade
Ver ficha técnica →PIC18F45K50-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$2.74 / unidade
Ver ficha técnica →PIC18LF4610-I/ML Classificações máximas e características elétricas
| Core Architecture | PIC18 (8-bit, 16-bit instruction word) |
| Program Memory (Flash) | 64 KB (32K x 16 words) |
| RAM | 3,968 bytes |
| Maximum CPU Clock | 40 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Encapsulamento | QFN-44 (8x8 mm) with Exposed Pad |
| Temperatura de operação | -40 C to +85 C (Industrial) |
| Tipo de montagem | Surface Mount |
| Serial Interfaces | UART, SPI, I2C (MSSP) |
| Timers | Timer0 (8/16-bit), Timer1/2/3 (16-bit) |
| CCP/ECCP Modules | 2 CCP + 1 ECCP |
| Comparators | 2 analog comparators |
| Low-Power Modes | nanoWatt Technology (multiple idle/sleep modes) |
| Programming/Debug | ICSP, ICD via MPLAB |
| Status RoHS | Compliant |
Configuração de pinos do PIC18LF4610-I/ML
| Pino 1 | RG0 — Port G bit 0 / CCP3 |
| Pino 2 | RG1 — Port G bit 1 / TX2 (AUX UART) |
| Pino 3 | RG2 — Port G bit 2 / RX2 (AUX UART) |
| Pino 4 | RG3 — Port G bit 3 / CCP4 |
| Pino 5 | RG4 — Port G bit 4 / CCP5 |
| Pino 6 | MCLR — Master Clear reset input (active low) |
| Pino 7 | OSC1 — Crystal oscillator input / external clock |
| Pino 8 | OSC2 — Crystal oscillator output |
| Pino 9 | RA0 — Port A bit 0 / AN0 |
| Pino 10 | RA1 — Port A bit 1 / AN1 |
| Pino 11 | RA2 — Port A bit 2 / AN2 / VREF- |
| Pino 12 | RA3 — Port A bit 3 / AN3 / VREF+ |
| Pino 13 | RA4 — Port A bit 4 / T0CKI |
| Pino 14 | RA5 — Port A bit 5 / AN4 |
| Pino 15 | RA6 — Port A bit 6 / OSC2 (alternate) |
| Pino 16 | RA7 — Port A bit 7 / OSC1 (alternate) |
| Pino 17 | VSS — Ground reference |
| Pino 18 | VDD — Positive supply voltage (2.0V-5.5V) |
| Pino 19 | RB0 — Port B bit 0 / INT0 |
| Pino 20 | RB1 — Port B bit 1 / INT1 |
| Pino 21 | RB2 — Port B bit 2 / INT2 |
| Pino 22 | RB3 — Port B bit 3 / CCP2 |
| Pino 23 | RB4 — Port B bit 4 |
| Pino 24 | RB5 — Port B bit 5 / PGM |
| Pino 25 | RB6 — Port B bit 6 / PGC (ICD clock) |
| Pino 26 | RB7 — Port B bit 7 / PGD (ICD data) |
| Pino 27 | RC0 — Port C bit 0 / T1OSO / T13CKI |
| Pino 28 | RC1 — Port C bit 1 / T1OSI |
| Pino 29 | RC2 — Port C bit 2 / CCP1 |
| Pino 30 | RC3 — Port C bit 3 / SCL |
| Pino 31 | RC4 — Port C bit 4 / SDI / SDA |
| Pino 32 | RC5 — Port C bit 5 / SDO |
| Pino 33 | RC6 — Port C bit 6 / TX1 |
| Pino 34 | RC7 — Port C bit 7 / RX1 |
| Pino 35 | RD0 — Port D bit 0 / PSP0 |
| Pino 36 | RD1 — Port D bit 1 / PSP1 |
| Pino 37 | RD2 — Port D bit 2 / PSP2 |
| Pino 38 | RD3 — Port D bit 3 / PSP3 |
| Pino 39 | RD4 — Port D bit 4 / PSP4 |
| Pino 40 | RD5 — Port D bit 5 / PSP5 / P1A |
| Pino 41 | RD6 — Port D bit 6 / PSP6 / P1B |
| Pino 42 | RD7 — Port D bit 7 / PSP7 / P1C |
| Pino 43 | RE0 — Port E bit 0 / AN5 / RD |
| Pino 44 | RE1 — Port E bit 1 / AN6 / WR |
| Pino 45 | RE2 — Port E bit 2 / AN7 / CS |
| Pino 46 | AVDD — Analog positive supply |
| Pino 47 | AVSS — Analog ground reference |
| Pino EP | EP — Exposed thermal pad - connect to VSS |
Aplicações típicas
PIC18LF4610-I/ML é adequado para 7 aplicaçãos: Industrial Control Panel, Smart Sensor Hub, Battery-Backed Data Logger, HVAC Control Board, Motor Control Subsystem, Portable Medical Device, Automotive Body Control Module.
Industrial Control Panel
The PIC18LF4610-I/ML fits industrial control panels where its 40 MHz CPU, 36 I/O and 64 KB Flash handle keypad scanning, LCD driving and Modbus RTU over UART. Its 2.0V-5.5V range lets the same design run from 24V->5V or 3.3V rails, and the -40C to +85C industrial grade tolerates factory-floor temperatures. The integrated 10-bit ADC reads potentiometers and 4-20 mA loop signals after external scaling. Compared with newer PIC18F-K series, the LF4610 keeps BOM cost down for proven legacy firmware.
Recomendado
Smart Sensor Hub
For multi-sensor IoT edge nodes, the PIC18LF4610-I/ML aggregates readings from SPI temperature, I2C humidity and UART CO2 sensors while running calibration and averaging in firmware. The 3,968 bytes SRAM buffer raw data before transmission, and nanoWatt sleep modes drop quiescent current to microamp levels for battery operation. The 10-bit ADC with up to 13 channels supports direct connection to analog sensors (light, gas, strain gauge bridges). Engineers typically pair the LF4610 with an MCP9808 temperature sensor and an RN4870 BLE module.
Recomendado
Battery-Backed Data Logger
The PIC18LF4610-I/ML excels in battery-backed data loggers that record sensor data to external EEPROM or SD card via SPI. The 2.0V-5.5V VDD range supports two-cell alkaline or lithium primary cells, and the nanoWatt sleep currents extend battery life to multi-year deployments. The hardware UART interfaces with GPS modules for time-stamped remote logging, while the 10-bit ADC samples battery voltage for fuel gauging. Brown-out reset and low-voltage detect protect against data corruption during cell end-of-life.
Recomendado
HVAC Control Board
Building automation and HVAC systems use the PIC18LF4610-I/ML for thermostatic control, fan-speed PWM and damper actuator drive. The ECCP module generates the high-resolution PWM waveform needed for brushless DC fan control, while the analog comparators monitor over-current faults without CPU intervention. The wide 2.0-5.5V supply simplifies integration with 24 VAC HVAC transformers rectified to 5V DC. The 36 I/O easily handles multiple temperature sensors, relay outputs and triac-fired heater stages.
Recomendado
Motor Control Subsystem
Stepper and small BLDC motor control leverages the PIC18LF4610-I/ML's ECCP module for center-aligned PWM, 16-bit timers for velocity measurement, and QEI (Quadrature Encoder Interface) capability for closed-loop positioning. The 40 MIPS throughput executes field-oriented control (FOC) loops on small three-phase motors under 100 W. Hardware comparators provide cycle-by-cycle current limiting for protection. The QFN-44 exposed pad keeps the die temperature low during high-current switching.
Recomendado
Portable Medical Device
Battery-powered portable medical devices such as glucose meters, pulse oximeters and handheld diagnostic probes benefit from the PIC18LF4610-I/ML's nanoWatt low-power modes, 2.0-5.5V supply flexibility and 10-bit ADC for sensor readout. The 40 MHz CPU handles waveform analysis, display driving and USB-CDC communication to a host PC. The industrial temperature grade accommodates refrigerated diagnostic environments. Medical device designers must validate all firmware against IEC 62304 and verify electromagnetic compatibility per IEC 60601-1.
Recomendado
Automotive Body Control Module
While not AEC-Q100 qualified, the PIC18LF4610-I/ML is commonly used in non-safety automotive body control applications such as interior lighting, mirror adjustment and seat-position memory. The wide 2.0-5.5V supply tolerates 12V battery transients after regulation, the 10-bit ADC reads switch and rheostat positions, and the ECCP drives LED dimming via PWM. The PIC18F4610 family shares its heritage with the PIC18F4685 CAN-enabled variant, allowing easy migration when CAN bus connectivity is required.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF4610-I/ML — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18LF4620-I/ML | PIC18F4610-I/ML | PIC18F46K22-I/ML | PIC18LF45K80-I/PT | PIC18F45K50-I/PT |
|---|---|---|---|---|---|---|
| Package | QFN-44 (ML) 8x8 mm | QFN-44 (ML) - same | QFN-44 (ML) - same | QFN-44 (ML) - same | TQFP-44 (PT) - different | TQFP-44 (PT) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB |
| RAM | 3,968 bytes | 3,968 bytes | 3,968 bytes | 3,896 bytes | 2,048 bytes | 2,048 bytes |
| Operating Voltage | 2.0V - 5.5V | 2.0V - 5.5V | 4.2V - 5.5V | 2.3V - 5.5V | 1.8V - 5.5V | 2.3V - 5.5V |
| Maximum Clock | 40 MHz | 40 MHz | 40 MHz | 64 MHz | 64 MHz | 48 MHz |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| ADC | 10-bit, 13 channels | 10-bit, 13 channels | 10-bit, 13 channels | 10-bit, 28 channels | 12-bit, 11 channels | 10-bit, 25 channels |
| Special Peripherals | ECCP, MSSP, USART, no PPS | ECCP, MSSP, USART, no PPS | ECCP, MSSP, USART, no PPS | PPS, CWG, DSM, 4 ECCP | CAN, PPS, 12-bit ADC | USB 2.0 FS, PPS, CWG |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Principais diferenciais
- 64 KB Flash in QFN-44 with 2.0V-5.5V wide VDD (vs PIC18F46K22-I/ML)
- Industrial -40C to +85C grade with 36 I/O and 3,968 byte RAM (vs PIC18LF45K50-I/PT)
- Mature MPLAB X + XC8 compiler support (vs Cross-vendor MCUs (STM32, NXP LPC))
Notas de projeto
Decouple VDD/VSS and AVDD/AVSS with separate networks: 100 nF ceramic as close as possible to each pin pair, plus a 10 uF bulk capacitor on the main VDD rail. For the 10-bit ADC, add a ferrite bead between VDD and AVDD to isolate analog supply noise. The 2.0V-5.5V range allows direct operation from a 3.3V regulator without LDO cascading.
The QFN-44 (ML) package has an exposed thermal pad that MUST be soldered to a ground pour for proper thermal dissipation. Without the EP soldered, theta_JA rises from approximately 35 C/W to over 70 C/W and the die can overheat at full 40 MHz CPU load with all peripherals active. Use at least 4 thermal vias in the EP land pattern to a continuous ground plane on an inner PCB layer.
Place the 40 MHz crystal (or resonator) within 5 mm of OSC1/OSC2 and guard the traces with a ground ring to reduce EMI pickup. Use Microchip's recommended MPLAB ICD3 or ICD4 connection on RB6/RB7 (PGC/PGD) for in-circuit debugging; route these traces away from high-frequency switching nodes. Keep analog traces (AN0-AN7) short and surrounded by ground pour for best ADC noise performance.
Do not confuse the LF (2.0-5.5V) variant with the F (4.2-5.5V only) variant; PIC18F4610-I/ML is a drop-in replacement only when VDD stays above 4.2V. Always configure the configuration bits (CONFIG1H-5L) for the correct oscillator mode and WDT/brown-out settings before code execution - undefined CONFIG bits can lock the MCU. Use ICSP for programming in-circuit rather than socket-based parallel programming.
The 10-bit ADC achieves best performance when the source impedance is below 5 kohm; add an op-amp buffer (e.g., MCP6002) if your sensor signal cannot drive this. Use the AVDD/AVSS analog supply pins exclusively for ADC reference, not as general digital power. The voltage reference VREF+ pin allows ratiometric measurements independent of VDD drift.
Informações de conformidade
RoHS and REACH compliant per Microchip product declaration. The LF4610 family is NOT AEC-Q100 qualified; for automotive applications use the PIC18F4685/CAN variants or PIC18F-K AEC-Q100 grade parts. Lead-free matte-tin finish suitable for lead-free reflow profiles up to 260 C peak.
