PIC18F44J10-I/PT - 8-bit MCU, 16KB Flash, 40MHz, TQFP-44 | Microchip
Référence : PIC18F44J10-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $4.85 | $4,85 |
| 10 | $4.36 | $43,60 |
| 100 | $3.88 | $388,00 |
| 500 | $3.49 | $1 745,00 |
| 1 000 | $3.1 | $3 100,00 |
PIC18F44J10-I/PT Présentation
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and integrated peripherals such as timers, communication interfaces, and analog blocks. PIC18 microcontrollers belong to the 8-bit RISC family using a Harvard architecture with separate code and data buses, enabling single-cycle instruction execution and deterministic interrupt latency. The PIC18F44J10 sits in the J-series, which is optimized for 2.0-3.6V operation with nanoWatt power-saving features.
Key features include a 10-bit ADC with up to 13 input channels, two analog comparators, two capture/compare/PWM modules, five timer/counters, two MSSP (I2C/SPI) modules, and an enhanced USART with LIN master/slave support. The device provides address masking for I2C, hardware PWM, and brown-out reset for reliable field operation. The peripheral set is well matched to low-cost sensor, motor, and human-interface designs.
The PIC18F44J10 uses a 16-bit instruction word with an 8-bit data path and a hardware 8x8 multiplier that speeds up integer math for control loops. Flash endurance is rated at 1k erase-write cycles minimum, with self-programmability under firmware control. The nanoWatt power management block offers idle, sleep, and deep-sleep modes with multiple wake-up sources for battery-aware designs.
Typical applications include appliance control panels, low-end consumer electronics, sensor hubs, LIN-based automotive body controllers (non-safety), USB/HID bridges when paired with an external transceiver, and educational or hobby development boards. The wide operating voltage window and rich peripherals make it a flexible drop-in for cost-sensitive legacy designs.
When designing with this device, keep in mind that the J-series PIC18 runs only at 2.0-3.6V, so any 5V signal must be level-shifted. Place a 1uF decoupling capacitor adjacent to each VDD/VSS pair and a 10uF bulk capacitor near the regulator output. Use MPLAB X IDE with the XC8 compiler for development and the PICkit 3/4 or ICD 4 for debug.
This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC18 family, and practical design notes not found in the bare manufacturer datasheet, providing actionable intelligence for procurement and engineering decisions.
Alternatives de remplacement direct pour PIC18F44J10-I/PT — 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 PIC18F44J10-I/PT (même facteur de forme et même empreinte) — différant par Package, Timers, Operating Temperature, Core Architecture, ADC.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F45J10-I/PT
✅ Remplacement direct✓ En stock
$2.3 / unité
Voir la fiche technique →PIC18F46J10-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F44J11-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC18F44J50-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.55 / unité
Voir la fiche technique →PIC18F44K22-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F4455-I/PT
✅ Remplacement direct✓ En stock
$4.85 / unité
Voir la fiche technique →PIC18F44J10-I/PT Valeurs maximales et caractéristiques électriques
| Core | PIC18 8-bit RISC |
| Program Memory | 16 KB Flash |
| Data RAM | 1024 bytes |
| Data EEPROM | Emulated (no separate EEPROM array) |
| Maximum CPU Speed | 40 MHz (10 MIPS at 40 MHz / 16 MIPS at 64 MHz internal) |
| Operating Voltage | 2.0 V to 3.6 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Comparators | 2 |
| Timers | 5 (Timer0/1/2/3 + WDT) |
| CCP/PWM Modules | 2 |
| MSSP (I2C/SPI) | 2 |
| EUSART | 1 (with LIN master/slave) |
| Boîtier | TQFP-44 (PT), 10x10 mm |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40C to +85C (industrial, -I) |
| Flash Endurance | 1k erase-write cycles minimum |
| Statut RoHS | Compliant |
Configuration des broches de PIC18F44J10-I/PT
| Broche 1 | MCLR — Master clear (reset) input, active low |
| Broche 2 | RA0 — Digital I/O / analog AN0 |
| Broche 3 | RA1 — Digital I/O / analog AN1 |
| Broche 4 | RA2 — Digital I/O / analog AN2 |
| Broche 5 | RA3 — Digital I/O / analog AN3 |
| Broche 6 | RA4 — Digital I/O / analog AN4 / Timer0 clock |
| Broche 7 | RA5 — Digital I/O / analog AN5 |
| Broche 8 | RA6 — Digital I/O / analog AN6 / OSC2 |
| Broche 9 | RA7 — Digital I/O / analog AN7 / OSC1 |
| Broche 10 | VDD — Positive supply voltage |
| Broche 11 | VSS — Ground reference |
| Broche 12 | RB0 — Digital I/O / interrupt-on-change |
| Broche 13 | RB1 — Digital I/O / interrupt-on-change |
| Broche 14 | RB2 — Digital I/O / interrupt-on-change |
| Broche 15 | RB3 — Digital I/O / interrupt-on-change |
| Broche 16 | RB4 — Digital I/O / interrupt-on-change |
| Broche 17 | RB5 — Digital I/O / interrupt-on-change / CCP3 |
| Broche 18 | RB6 — Digital I/O / interrupt-on-change / PGC (ICSP clock) |
| Broche 19 | RB7 — Digital I/O / interrupt-on-change / PGD (ICSP data) |
| Broche 20 | VDD — Positive supply voltage |
| Broche 21 | VSS — Ground reference |
| Broche 22 | RC0 — Digital I/O / analog AN12 |
| Broche 23 | RC1 — Digital I/O / analog AN10 / CCP2 |
| Broche 24 | RC2 — Digital I/O / analog AN8 / CCP1 |
| Broche 25 | RC3 — Digital I/O / analog AN9 / SCL1 |
| Broche 26 | RC4 — Digital I/O / analog AN11 / SDA1 |
| Broche 27 | RC5 — Digital I/O |
| Broche 28 | RC6 — Digital I/O / TX (EUSART) |
| Broche 29 | RC7 — Digital I/O / RX (EUSART) |
| Broche 30 | AVSS — Analog ground reference |
| Broche 31 | AVDD — Analog positive supply voltage |
| Broche 32 | RD0 — Digital I/O |
| Broche 33 | RD1 — Digital I/O |
| Broche 34 | RD2 — Digital I/O |
| Broche 35 | RD3 — Digital I/O |
| Broche 36 | RD4 — Digital I/O |
| Broche 37 | RD5 — Digital I/O |
| Broche 38 | RD6 — Digital I/O |
| Broche 39 | RD7 — Digital I/O |
| Broche 40 | VSS — Ground reference |
| Broche 41 | VDD — Positive supply voltage |
| Broche 42 | RE0 — Digital I/O / analog AN5 |
| Broche 43 | RE1 — Digital I/O / analog AN6 |
| Broche 44 | RE2 — Digital I/O / analog AN7 |
Applications typiques
PIC18F44J10-I/PT convient pour 6 applications: Appliance Control Panels, Sensor Hubs and Data Loggers, LIN Bus Automotive Body Controllers, Industrial Sensor and Actuator Nodes, Educational and Hobby Development Boards, Low-End Consumer Electronics.
Appliance Control Panels
The PIC18F44J10-I/PT fits appliance front-panel and human-interface applications because its 40 MHz PIC18 core executes keypad scan, LED/PWM dimming, and I2C sensor polling in real time while drawing only tens of mA active. The device offers 2 CCP/PWM channels at the J-series 3.3V rail, sufficient to drive indicator LEDs, triac-dimmer interfaces, and small buzzer tones via the EUSART LIN/IR carrier. With 16 KB flash and emulated EEPROM, the part can store the appliance mode table, fault log, and look-up tables for sensor linearization. The 10-bit ADC with 13 input channels supports direct connection to thermistor dividers, mains-frequency zero-cross detectors, and current-sense shunts, reducing BOM cost. Industrial -40C to +85C temperature range tolerates kitchen and laundry environments. Internal brown-out reset plus watchdog timer improve field reliability against brown-out and firmware lockup conditions common in motor-driven loads.
Recommandé
Sensor Hubs and Data Loggers
The PIC18F44J10-I/PT is well suited for low-cost sensor hubs and battery-aware data loggers because the nanoWatt power management block offers idle, sleep, and deep-sleep modes with sub-1 uA quiescent current at 3.3V. The on-board 10-bit ADC samples up to 13 analog sensors (temperature, light, humidity, pressure) without external multiplexer cost. Two MSSP ports support I2C sensor arrays and SPI flash memory for offline logging expansion. The PIC18 instruction set with hardware 8x8 multiply accelerates running averages and threshold-detection filtering in firmware without an external DSP. Industrial temperature range suits outdoor environmental monitoring, and the 36 I/O pins allow direct connection to multiple sensor breakouts plus an SD card or serial EEPROM via bit-banged SPI when both MSSP ports are occupied by I2C devices. The device's 1 KB RAM can buffer one second of 100 Hz sensor data before flushing to the log.
Recommandé
LIN Bus Automotive Body Controllers
The PIC18F44J10-I/PT is a strong fit for LIN-based automotive body controllers (window lift, seat adjustment, mirror fold, climate sensor nodes) thanks to the integrated enhanced USART with LIN master/slave capability and hardware address masking. The device operates from 2.0-3.6V, compatible with the LIN 2.x 12V bus when paired with a TJA1027 LIN transceiver. The 16 KB flash holds a state-machine LIN stack plus application layer for typical body-controller workloads, and the emulated EEPROM data area stores node configuration and diagnostic trouble codes. Two CCP/PWM channels drive small motors or LED indicators directly, while the 10-bit ADC reads position sensors and current feedback. The 40 MHz / 16 MIPS throughput handles LIN scheduling, debounced switch scanning, and PWM update in real time. Industrial -40C to +85C temperature range meets the cabin-environment requirement.
Recommandé
Industrial Sensor and Actuator Nodes
The PIC18F44J10-I/PT supports cost-sensitive industrial sensor and actuator nodes in factory automation and process control, where its 16 MIPS performance, 36 I/O pins, and 10-bit ADC cover most thermocouple amplifier, RTD, and 4-20 mA loop digitization tasks. Two MSSP modules allow simultaneous I2C sensor communication (e.g. MEMS accelerometer) and SPI actuator control, while the LIN-capable EUSART can serve as a UART bridge to RS-485 transceivers with external hardware for multi-drop fieldbus. Industrial -40C to +85C operating range tolerates cabinet environments. NanoWatt sleep modes drop quiescent current under 1 uA for battery-backed remote nodes. The 16 KB flash holds Modbus RTU framing plus simple PID loop code, and the 1 KB RAM accommodates a packet buffer for sensor telemetry uploads.
Recommandé
Educational and Hobby Development Boards
The PIC18F44J10-I/PT is well suited to educational microcontroller courses and hobby development boards because the PIC18 instruction set is straightforward to learn and the MPLAB X IDE + XC8 toolchain is free. The TQFP-44 (PT) package exposes enough I/O for student projects involving LEDs, character LCDs, keypads, and small motors without needing complex multiplexing. Onboard peripherals including 10-bit ADC, two comparators, two PWM, and two I2C/SPI interfaces cover typical lab experiments in signal acquisition, motor speed control, and digital communication. The 3.3V rail simplifies power design using a USB-to-UART cable with on-board 3.3V regulator. 16 KB flash supports introductory real-time operating system demos and modest bootloader experiments. Hardware debug is supported by PICkit 4 and ICD 4 programmers through standard ICSP pins.
Recommandé
Low-End Consumer Electronics
The PIC18F44J10-I/PT fits low-end consumer electronics such as toys, remote controls, kitchen timers, and small home-automation sensors where cost dominates the design choice and the 16 KB flash plus 1 KB RAM is sufficient for the application code. The 40 MHz PIC18 core handles IR remote protocol decoding, LED animation, and PWM motor control in real time. Two CCP/PWM modules can drive RGB indicator LEDs or small DC motors directly via MOSFET bridges, reducing external component count. The 10-bit ADC supports battery voltage monitoring and light or temperature sensing, while the LIN-capable EUSART can serve as a UART for Bluetooth or Wi-Fi modules (RN4870, ESP-AT) in connected consumer products. NanoWatt sleep modes extend battery life in handheld devices. Industrial -40C to +85C range supports indoor and protected-outdoor use.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F44J10-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F45J10-I/PT | PIC18F46J10-I/PT | PIC18F44J11-I/PT | PIC18F44J50-I/PT | PIC18F44K22-I/PT | PIC18F4455-I/PT |
|---|---|---|---|---|---|---|---|
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Flash | 16 KB | 32 KB (+100%) | 64 KB (+300%) | 16 KB (same) | 16 KB (same) | 16 KB (same) | 24 KB (+50%) |
| Data RAM | 1024 bytes | 2048 bytes (+100%) | 4096 bytes (+300%) | 1024 bytes (same) | 1024 bytes (same) | 1024 bytes (same) | 2048 bytes (+100%) |
| Max CPU Speed | 40 MHz / 16 MIPS | 40 MHz / 16 MIPS (same) | 40 MHz / 16 MIPS (same) | 40 MHz / 16 MIPS (same) | 48 MHz / 12 MIPS (varies) | 48 MHz / 16 MIPS (+20%) | 48 MHz / 12 MIPS (+20%) |
| Operating Voltage | 2.0-3.6 V | 2.0-3.6 V (same) | 2.0-3.6 V (same) | 2.0-3.6 V (same) | 2.0-3.6 V (same) | 1.8-5.5 V (wider) | 2.0-5.5 V (wider) |
| USB Peripheral | None | None (same) | None (same) | None (same) | USB 2.0 FS (added) | None (same) | USB 2.0 FS (added) |
| I/O Pins | 36 | 36 (same) | 36 (same) | 36 (same) | 36 (same) | 36 (same) | 36 (same) |
| 10-bit ADC Channels | 13 | 13 (same) | 13 (same) | 13 (same) | 13 (same) | 14 (+1) | 13 (same) |
| EUSART (LIN-capable) | 1 | 1 (same) | 1 (same) | 1 (same) | 1 (same) | 2 (+1) | 1 (same) |
Principaux différenciateurs
- Smaller flash at lower cost for compact code (vs PIC18F45J10-I/PT)
- USB-less variant in same footprint (vs PIC18F44J50-I/PT)
- NanoWatt deep-sleep for battery-powered sensor nodes (vs PIC18F44K22-I/PT)
- 3.3V-only optimized voltage class (vs PIC18F44K20-I/P)
Notes de conception
Place a 1uF X7R ceramic decoupling capacitor adjacent to each VDD/VSS pin pair (4 pairs on TQFP-44), plus a single 10uF tantalum or aluminum polymer bulk capacitor near the regulator output. Keep total VDD rise time below 50 ms to avoid spurious power-on reset behavior. For battery applications, gate the regulator with a P-MOSFET to achieve <1 uA standby current. J-series parts tolerate 3.6V maximum sustained, so choose a 3.3V LDO with PSRR >50 dB at 100 kHz if upstream noise is significant.
Route the 40 MHz crystal traces within 5 mm of the OSC1/OSC2 pins with a guard trace to ground on each side, and place the load capacitors (typically 22-33 pF) directly between the oscillator pins and ground. Keep the ICSP PGC/PGD traces (RB6/RB7) short and add 4.7k pull-ups to VDD to prevent in-circuit programming errors. Route analog inputs (AN0-AN13) away from digital switching lines, and place the AVSS/AVDD analog power pin pair with its own ferrite bead if ADC accuracy >8 bits is required.
Do not apply 5V signals to any I/O pin - the J-series VDD maximum is 3.6V and over-voltage on a pin will damage the ESD clamp diodes. When migrating from a 5V PIC18 design, add a 4-channel level shifter (e.g. TXS0108E) on the signal lines. Watch out for the J-series brown-out reset threshold at 2.0V - if your regulator droops below this during heavy load steps, the MCU will reset. Configure the BOR via CONFIG2L bits to either enabled or disabled based on application criticality.
The MSSP ports in I2C mode require 4.7k-10k pull-ups on SCL/SDA; rise time should be under 1 microsecond for standard mode (100 kHz) and under 300 ns for fast mode (400 kHz). When using SPI at >4 MHz, add 33-ohm series resistors on SCK/MOSI/MISO lines to dampen reflections on long PCB traces. The EUSART TX pin can be left floating when unused to avoid spurious emissions; configure the corresponding TRIS bit to output and leave the pin disconnected.
Informations de conformité
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified - choose PIC18F46K22-I/PT or similar automotive-graded K-series parts for AEC-Q100 requirements.