PIC18LF44J10T-I/PT - 40MHz 8-Bit MCU 16KB Flash 44-TQFP | Microchip
N.º da peça: PIC18LF44J10T-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.92 | $4,92 |
| 10 | $4.45 | $44,50 |
| 100 | $3.78 | $378,00 |
| 500 | $3.4 | $1.700,00 |
| 1.000 | $3.05 | $3.050,00 |
PIC18LF44J10T-I/PT Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one die. The PIC18 family uses a RISC (Reduced Instruction Set Computer) Harvard architecture with separate program and data buses, enabling single-cycle instruction execution. Within the broader semiconductor hierarchy, PIC18LF44J10 belongs to the microcontroller -> embedded processor -> integrated circuit taxonomy. The "LF" prefix designates the low-voltage FLASH variant optimized for nanoWatt technology, which provides multiple power-saving modes for battery-operated designs.
Key features of the PIC18LF44J10T-I/PT include nanoWatt power management for reduced active and sleep currents, integrated peripherals such as brown-out detect (BOD), power-on reset (POR), pulse-width modulation (PWM), and a watchdog timer (WDT), plus communication interfaces including I2C, SPI, and UART/USART. The industrial temperature range (-40C to +85C) ensures reliable operation across commercial and industrial environments, while the TQFP-44 surface-mount package supports automated PCB assembly.
Technically, this device uses a 16-bit instruction word with an 8-bit data path, 16 hardware registers, and a vectored interrupt controller. Its nanoWatt technology offers multiple idle modes (Idle, Sleep, and deep Sleep variants) with sub-microamp quiescent current in deep sleep, making it appropriate for battery-powered sensor nodes. The 40MHz internal oscillator (via PLL) supports USB-friendly timing and high-throughput serial communication.
Typical applications include industrial control panels, consumer electronics, home automation, sensor interface boards, motor control peripherals, and USB device controllers. The wide voltage range (2.0V to 5.5V including full-speed operation up to 40MHz at 3.3V) makes it a flexible choice for both 3.3V and 5V systems.
When designing with this MCU, allocate sufficient decoupling (0.1uF + 10uF) near VDD pins, ensure the MCLR pull-up is present, and respect the in-circuit serial programming (ICSP) pin assignments. Compiler support is mature across MPLAB XC8, MCC generated code, and third-party toolchains.
This page synthesizes distributor pricing, drop-in alternatives from the PIC18LF family, and practical design notes not consolidated in the manufacturer datasheet - enabling faster sourcing and design decisions.
Alternativas drop-in para PIC18LF44J10T-I/PT — 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 PIC18LF44J10T-I/PT (mesmo formato e footprint) — diferindo em Package, Timers, ADC, I/O Pins, Operating Temperature.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18LF44J10-I/PT
✅ Drop-In✓ Em estoque
$2.94 / unidade
Ver ficha técnica →PIC18LF44J10T-I/ML
✅ Drop-In✓ Em estoque
$2.52 / unidade
Ver ficha técnica →PIC18LF448T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.32 / unidade
Ver ficha técnica →PIC18LF4320T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.15 / unidade
Ver ficha técnica →PIC18LF4450T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.55 / unidade
Ver ficha técnica →PIC18LF4439T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.8 / unidade
Ver ficha técnica →PIC18LF44J10T-I/PT Classificações máximas e características elétricas
| Core | PIC 8-bit RISC |
| Series | PIC18J (PIC18LF44J10) |
| Program Memory | 16 KB (8K x 16) FLASH |
| RAM | 1 KB |
| Frequência máxima de clock | 40 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V (2.5V/3.3V/5V nominal) |
| Encapsulamento | 44-pin TQFP (10x10 mm) |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | -40 C to +85 C (Industrial) |
| Communication Interfaces | I2C, SPI, UART/USART |
| Integrated Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Power-Saving Technology | nanoWatt (multiple low-power modes) |
| Instruction Set | 16-bit instruction word, 8-bit data path |
| Nível MSL | 3 (168 hours) |
| Status RoHS | Compliant |
| Lead-Free / Halogen-Free | Lead-free (per Microchip) |
Configuração de pinos do PIC18LF44J10T-I/PT
| Pino 1 | MCLR — Master Clear (reset) input, external pull-up required |
| Pino 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pino 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pino 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| Pino 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Pino 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 7 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Pino 8 | VSS — Ground reference |
| Pino 9 | RA7/OSC1/CLKI — PORTA bit 7 / oscillator input / clock in |
| Pino 10 | RA6/OSC2/CLKO — PORTA bit 6 / oscillator output / clock out |
| Pino 11 | VDD — Positive supply voltage |
| Pino 12 | VSS — Ground reference |
| Pino 13 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Pino 14 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pino 15 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pino 16 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| Pino 17 | RB4 — PORTB bit 4 |
| Pino 18 | RB5/PGM — PORTB bit 5 / LVP programming |
| Pino 19 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pino 20 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pino 21 | RC0/T1OSO/T13CKI — PORTC bit 0 / Timer1 oscillator output |
| Pino 22 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Pino 23 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Pino 24 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pino 25 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pino 26 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pino 27 | RC6/TX/CK — PORTC bit 6 / UART TX / clock |
| Pino 28 | RC7/RX/DT — PORTC bit 7 / UART RX / data |
| Pino 29 | RD0 — PORTD bit 0 |
| Pino 30 | RD1 — PORTD bit 1 |
| Pino 31 | RD2 — PORTD bit 2 |
| Pino 32 | RD3 — PORTD bit 3 |
| Pino 33 | RD4 — PORTD bit 4 |
| Pino 34 | RD5 — PORTD bit 5 |
| Pino 35 | RD6 — PORTD bit 6 |
| Pino 36 | RD7 — PORTD bit 7 |
| Pino 37 | RE0/RD/AN5 — PORTE bit 0 / read / analog input 5 |
| Pino 38 | RE1/WR/AN6 — PORTE bit 1 / write / analog input 6 |
| Pino 39 | RE2/CS/AN7 — PORTE bit 2 / chip select / analog input 7 |
| Pino 40 | RG0 — PORTG bit 0 |
| Pino 41 | RG1 — PORTG bit 1 |
| Pino 42 | RG2 — PORTG bit 2 |
| Pino 43 | RG3 — PORTG bit 3 |
| Pino 44 | NC — Not connected (per datasheet) |
Aplicações típicas
PIC18LF44J10T-I/PT é adequado para 6 aplicaçãos: Industrial Control Panels, Home Automation Hubs, Consumer Electronics - Remote Controls and Toys, Sensor Interface Boards, Motor Control Peripherals, Battery-Powered IoT Sensor Nodes.
Industrial Control Panels
The PIC18LF44J10T-I/PT suits industrial control panels because its 40MHz core, 16KB FLASH, and 1KB RAM handle HMI keypad scanning, LED matrix driving, and Modbus RTU over UART simultaneously. Its nanoWatt technology drops the quiescent current during standby to under 1uA, extending back-up battery life during grid-loss events. Brown-out detection and power-on reset ensure deterministic startup when 24V industrial rails collapse. The 44-TQFP package provides sufficient I/O count (34 digital pins) for switch matrices and indicator banks without external port expanders.
Recomendado
Home Automation Hubs
For Z-Wave, Zigbee, or Wi-Fi gateway MCUs in home automation, the PIC18LF44J10T-I/PT delivers a deterministic 8-bit core for sensor polling and protocol bridging while UART/SPI/I2C interfaces connect to radio modules. The 2.0-5.5V supply range lets the same board work from a single 3.3V LDO or from a 5V USB-bus supply. Its 1KB RAM is sufficient for a small RTOS or cooperative scheduler managing 8-16 sensor endpoints. Industrial temperature grade (-40C to +85C) handles indoor garage-attached installations in cold climates.
Recomendado
Consumer Electronics - Remote Controls and Toys
The PIC18LF44J10T-I/PT is well-suited for IR/RF remote controls and battery-powered consumer toys where its 8-bit PIC core drives keypad decoding, IR carrier generation, and PWM motor/servo control. nanoWatt sleep modes extend AAA-cell battery life beyond 12 months by waking only on interrupt. The wide 2.0-5.5V supply lets designers use either 2xAA or 2xAAA cells without boost regulators. UART/SPI interfaces connect to BLE or LoRa modules for premium remote models with bidirectional control.
Recomendado
Sensor Interface Boards
Sensor interface boards leverage the PIC18LF44J10T-I/PT's 10-channel 10-bit ADC, I2C/SPI interfaces, and PWM outputs to aggregate temperature, pressure, and flow sensors into a single UART output for upstream controllers. The 44-TQFP gives enough GPIO to drive indicator LEDs and relays alongside analog inputs. Watchdog timer and brown-out detect ensure the system recovers from sensor-line faults without operator intervention. nanoWatt XLP-like modes reduce sleep current below 100nA for solar-powered remote telemetry nodes.
Recomendado
Motor Control Peripherals
Small brushed DC and stepper motor controllers benefit from the PIC18LF44J10T-I/PT's enhanced PWM module, quadrature encoder interface, and 40MHz throughput that handles FOC commutation at moderate RPMs. The 16KB FLASH accommodates PI loop tuning tables and fault-handling state machines, while 1KB RAM buffers current-sense samples per PWM cycle. UART debug output simplifies bench tuning, and the industrial temperature grade supports underhood automotive and outdoor industrial enclosures.
Recomendado
Battery-Powered IoT Sensor Nodes
The PIC18LF44J10T-I/PT is a strong fit for battery-powered IoT sensor nodes where its nanoWatt technology provides deep-sleep currents below 100nA, enabling multi-year operation from a CR2032 coin cell. The 2.0V minimum operating voltage lets the cell discharge further before replacement. I2C and SPI interfaces connect to environmental sensors, while UART provides debug console output. Industrial temperature grade ensures cold-pack operation for outdoor asset tracking and agricultural monitoring deployments.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF44J10T-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18LF44J10-I/PT | PIC18LF448T-I/PT | PIC18LF4320T-I/PT | PIC18LF4450T-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (FLASH) | 16 KB | 16 KB | 16 KB | 8 KB | 32 KB |
| RAM | 1 KB | 1 KB | 1.5 KB | 512 B | 2 KB |
| Maximum Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 48 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| CAN Peripheral | No | No | Yes (ECAN) | No | Yes (USB 2.0 FS) |
| Industrial Temperature Range | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Principais diferenciais
- Wide 2.0V to 5.5V supply range with nanoWatt low-power modes (vs PIC18F44J10 (F-suffix variant))
- Larger RAM and FLASH than the PIC18LF4320T-I/PT alternative (vs PIC18LF4320T-I/PT)
- Stable Microchip supply chain with mature MPLAB XC8 toolchain (vs Cross-brand 8-bit MCU alternatives)
Notas de projeto
Estimated: At 40MHz active and 3.3V supply, the PIC18LF44J10T-I/PT draws approximately 8-10 mA typical active current per Microchip datasheet 39687E. Add a 0.1uF ceramic decoupling capacitor as close as possible to each VDD/AVDD pin (11 and 32), plus a bulk 10uF tantalum or ceramic at the regulator output. For nanoWatt sleep modes, verify the brown-out detector is configured correctly to allow sub-1uA deep-sleep current without spurious resets during supply ramp.
Keep the ICSP pins (RB6/PGC = pin 19, RB7/PGD = pin 20) accessible on the PCB for in-circuit programming and debug. Route the MCLR line (pin 1) with a 10kohm pull-up to VDD and a 100nF cap to ground for noise immunity. Place the 8MHz crystal (or ceramic resonator) within 5mm of pins 9-10 with a ground guard ring; long traces couple noise into the PLL and cause frequency drift above 40MHz operation.
Do not confuse the PIC18LF44J10T-I/PT (LF suffix, 2.0V min) with the PIC18F44J10 (F suffix, 3.0V min). Configuring CONFIG1L for an external oscillator when running at 2.5V can cause the PLL to fail to lock. Per Microchip datasheet 39687E, when using the internal oscillator at low voltages, ensure CONFIG1H selects INTOSC and that OSCTUNE is left at the factory default unless fine-tuning is required for USB or UART baud accuracy.
Informações de conformidade
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - for automotive designs, consider PIC18F46K22-I/PT or PIC18F25K80-I/SP which carry AEC-Q100 grade. Halogen-free and lead-free per Microchip packaging material declarations.