PIC18F44J11T-I/ML - 48MHz 8-bit MCU, 16KB Flash, 44-QFN
Référence : PIC18F44J11T-I/ML ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $4.1 | $4,10 |
| 10 | $3.55 | $35,50 |
| 100 | $2.85 | $285,00 |
| 500 | $2.45 | $1 225,00 |
| 1 000 | $2.1 | $2 100,00 |
| 3 000 | $1.85 | $5 550,00 |
PIC18F44J11T-I/ML Présentation
What is an 8-bit microcontroller? An 8-bit MCU is a self-contained computing IC that executes instructions on 8-bit data paths and integrates CPU, Flash program memory, RAM, peripherals (timers, ADC, communication interfaces), and I/O in a single chip. 8-bit MCUs sit within the broader taxonomy of microcontrollers -> embedded controllers -> semiconductor ICs. PIC18 devices specifically use Microchip's enhanced Harvard RISC architecture targeting cost-sensitive and low-power embedded designs.
Key features of the PIC18F44J11 include a 10-bit ADC with up to 13 input channels, two UART modules, two SPI/I2C-capable MSSP peripherals, two analog comparators, a hardware RTCC, and the Peripheral Pin Select (PPS) feature that allows digital peripheral I/O to be remapped to a wide set of physical pins. Deep Sleep mode current is specified in the nanoWatt XLP family at extremely low microamp levels, making the part attractive for battery-powered designs.
Architecturally the PIC18F44J11 combines an enhanced RISC core with internal 31 kHz-48 MHz oscillator options including an 8MHz HFINTOSC with PLL, on-chip 16 KB self-programmable Flash, and 4 KB SRAM, with deep sleep and run-time configurable oscillator switching. The ICSP (In-Circuit Serial Programming) and ICD (In-Circuit Debug) interfaces are exposed on dedicated pins, enabling production programming and field debugging through Microchip's MPLAB toolchain.
Typical applications include USB/HID human-interface peripherals (when paired with a USB transceiver), consumer appliances, industrial control front-ends, low-cost sensor hubs, and battery-powered metering devices where deep sleep current and integrated AFE reduce BOM. The wide operating voltage range and 36 I/O count also suit multi-channel acquisition boards and protocol bridges.
When designing with this part, ensure the 44-QFN exposed pad is soldered to a sufficient copper pour to meet the package thermal resistance specification, choose decoupling values per the datasheet's recommended capacitor network, and reserve RB0/RB1/RB6/RB7 (or their PPS alternatives) for ICSP/ICD during layout. The 'T' in the suffix indicates Tape and Reel packaging and the 'I' indicates the -40C to +85C industrial temperature range.
Alternatives de remplacement direct pour PIC18F44J11T-I/ML — 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 PIC18F44J11T-I/ML (même facteur de forme et même empreinte) — différant par Package, Core Architecture, Operating Temperature, ADC, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F44J11-I/ML
✅ Remplacement direct✓ En stock
$1.85 / unité
Voir la fiche technique →PIC18F46J11-I/ML
✅ Remplacement direct✓ En stock
$2.61 / unité
Voir la fiche technique →PIC18F45J11-I/ML
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$3.25 / unité
Voir la fiche technique →PIC18F46J50-I/ML
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F44J10-I/ML
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC18F44K22-I/ML
✅ Remplacement direct✓ En stock
$2.1 / unité
Voir la fiche technique →PIC18F44J11T-I/ML Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| Program Memory (Flash) | 16 KB (8K x 16) |
| Data RAM | 4 KB |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Voltage Domain | 4.2 V to 5.5 V (5V tolerant I/O) |
| Digital I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Boîtier | 44-pin QFN with exposed pad (8 mm x 8 mm) |
| Température de fonctionnement | -40 C to +85 C (Industrial) |
| UART | 2 |
| SPI / I2C (MSSP) | 2 |
| Analog Comparators | 2 |
| Peripheral Pin Select (PPS) | Yes |
| Deep Sleep Current | nanoWatt XLP low-power mode |
| ICSP / ICD Debug | Yes (RB0/1/6/7 or PPS) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de PIC18F44J11T-I/ML
| Broche 1 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Broche 2 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Broche 3 | RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / ADC VREF- |
| Broche 4 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC VREF+ |
| Broche 5 | RA4/AN4 — PORTA bit 4 / Analog input 4 |
| Broche 6 | RA5/AN5 — PORTA bit 5 / Analog input 5 |
| Broche 7 | RA6 — PORTA bit 6 |
| Broche 8 | RA7 — PORTA bit 7 |
| Broche 9 | VSS — Digital ground |
| Broche 10 | VDD — Positive digital supply |
| Broche 11 | RB0/INT0 — PORTB bit 0 / External interrupt 0 |
| Broche 12 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| Broche 13 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| Broche 14 | RB3/INT3 — PORTB bit 3 / External interrupt 3 |
| Broche 15 | RB4 — PORTB bit 4 |
| Broche 16 | RB5 — PORTB bit 5 |
| Broche 17 | RB6/ICSPCLK — PORTB bit 6 / ICSP clock |
| Broche 18 | RB7/ICSPDAT — PORTB bit 7 / ICSP data |
| Broche 19 | RC0 — PORTC bit 0 |
| Broche 20 | RC1 — PORTC bit 1 |
| Broche 21 | RC2 — PORTC bit 2 |
| Broche 22 | RC3 — PORTC bit 3 |
| Broche 23 | RC4 — PORTC bit 4 |
| Broche 24 | RC5 — PORTC bit 5 |
| Broche 25 | RC6 — PORTC bit 6 |
| Broche 26 | RC7 — PORTC bit 7 |
| Broche 27 | VSS — Digital ground |
| Broche 28 | VDD — Positive digital supply |
| Broche 29 | RD0 — PORTD bit 0 |
| Broche 30 | RD1 — PORTD bit 1 |
| Broche 31 | RD2 — PORTD bit 2 |
| Broche 32 | RD3 — PORTD bit 3 |
| Broche 33 | RD4 — PORTD bit 4 |
| Broche 34 | RD5 — PORTD bit 5 |
| Broche 35 | RD6 — PORTD bit 6 |
| Broche 36 | RD7 — PORTD bit 7 |
| Broche 37 | RE0 — PORTE bit 0 |
| Broche 38 | RE1 — PORTE bit 1 |
| Broche 39 | RE2 — PORTE bit 2 |
| Broche 40 | VSS — Digital ground |
| Broche 41 | VDD — Positive digital supply |
| Broche 42 | VSS — Digital ground |
| Broche 43 | OSC1 — Crystal oscillator input |
| Broche 44 | OSC2 — Crystal oscillator output |
Applications typiques
PIC18F44J11T-I/ML convient pour 6 applications: USB HID Human Interface Devices, Industrial Sensor Hubs, Battery-Powered Remote Sensor Nodes, Consumer Appliance Control Boards, Multi-Channel Data Acquisition Front-Ends, Protocol Bridges and Converters.
USB HID Human Interface Devices
The PIC18F44J11T-I/ML's 48MHz PIC18 core, 36 digital I/O and integrated USB-ready peripheral set make it a strong fit for HID devices like keyboards, mice, and game controllers. The 16KB of Flash holds USB stacks and HID descriptors, while 4KB RAM buffers incoming HID reports. Its nanoWatt XLP deep-sleep current lowers battery drain on wireless peripherals, and the 5V-tolerant I/O simplifies interfacing with legacy sensors. Pair the MCU with a USB transceiver IC and Microchip's free USB framework to shorten HID firmware development.
Recommandé
Industrial Sensor Hubs
Industrial sensor hubs demand a fast ADC, many I/O, and rugged industrial temperature support - all met by the PIC18F44J11T-I/ML. The 10-bit ADC with up to 13 channels digitizes sensor signals at sample rates suitable for vibration, temperature, and pressure monitoring. With 36 I/O, the part can drive status LEDs, communicate over RS-232/RS-485 via two UARTs, and connect to SPI/I2C sensors through two MSSP modules. Its -40C to +85C industrial temperature rating supports factory automation cabinets and outdoor enclosures.
Recommandé
Battery-Powered Remote Sensor Nodes
The PIC18F44J11T-I/ML is built on nanoWatt XLP technology, making it ideal for battery-powered wireless sensor endpoints. Deep sleep currents in the nanoamp range extend coin-cell and lithium-pack life across multi-year deployment scenarios. The 2.0V-3.6V VDD range lets the part run directly from a single lithium or two AA cells without a boost regulator. Peripheral Pin Select (PPS) gives flexibility to assign UART/SPI to any I/O, simplifying board layout for compact remote nodes.
Recommandé
Consumer Appliance Control Boards
In consumer appliances such as washers, dishwashers, and small kitchen devices, the PIC18F44J11T-I/ML provides a balance of cost-effective 8-bit computation and rich peripherals. Two UARTs can drive display modules or communicate with inverter motor controllers, while the MSSP peripherals interface to EEPROMs and capacitive touch ICs. The Peripheral Pin Select feature lets designers re-route signals to simplify PCB routing in space-constrained enclosures, and the wide 2.0V-3.6V supply range supports direct Li-ion operation.
Recommandé
Multi-Channel Data Acquisition Front-Ends
With a 10-bit ADC and up to 13 analog input channels, the PIC18F44J11T-I/ML is well suited to multi-channel data acquisition front-ends in test and measurement, HVAC, and small-scale process control. Its 48MHz core converts ADC samples fast enough for audio-bandwidth monitoring of multiple channels, and the 4KB SRAM can buffer 1024 10-bit samples per channel before main-loop processing. The 44-QFN footprint keeps the front-end compact while still exposing 36 digital I/O for relays and indicator LEDs.
Recommandé
Protocol Bridges and Converters
The PIC18F44J11T-I/ML is widely deployed as a low-cost protocol bridge - for example UART to SPI, I2C to UART, or RS-232 to RS-485 conversion. Two UARTs and two MSSP peripherals provide independent physical interfaces on both sides of the bridge, while 36 I/O give ample pins for status LEDs, control lines, and flow-control signals. The nanoWatt XLP feature set lets bridge nodes enter sleep between transactions, lowering standby current in always-on panels.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F44J11T-I/ML — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F44J11-I/ML | PIC18F46J11-I/ML | PIC18F45J11-I/ML | PIC18F46J50-I/ML | PIC18F44J10-I/ML | PIC18F44K22-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8mm) ML | 44-QFN (8x8mm) ML - same | 44-QFN - same | 44-QFN - same | 44-QFN - same | 44-QFN - same | 44-QFN - same |
| Flash Memory | 16 KB | 16 KB | 64 KB | 32 KB | 64 KB | 16 KB | 16 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 3.8 KB | 4 KB | 4 KB |
| Max CPU Speed | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 40 MHz (10 MIPS) | 64 MHz (16 MIPS) |
| Supply Voltage (VDD) | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.3V to 5.5V |
| USB Peripheral | External required | External required | External required | External required | Integrated USB 2.0 FS | External required | External required |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Approx Unit Price (qty 1) | $4.10 | $4.10 (same die, tray) | ~$5.50 (more Flash) | ~$4.80 (more Flash) | ~$6.00 (USB + 64KB) | ~$3.85 (lower MIPS) | ~$2.80 (K-series mass volume) |
Principaux différenciateurs
- 16KB Flash in 44-QFN with deep sleep nanoWatt XLP (vs PIC18F25K80-I/SS)
- Peripheral Pin Select (PPS) on 36 I/O (vs PIC18F26K22-I/SP)
- 5V-tolerant I/O with 3.3V core (vs PIC18F46K22-I/ML)
Notes de conception
The 44-QFN exposed thermal pad must be soldered to a continuous PCB ground copper pour of at least 1 sq inch to meet the datasheet's thermal resistance spec and to provide the lowest-impedance return path for the digital I/O. Use an array of thermal vias under the pad (typically 0.3mm drill, 1.0mm pitch, plugged or tented on the opposite side) to transfer heat into inner planes.
Place a 100nF decoupling capacitor as close as possible to every VDD pin, with a 10uF bulk capacitor on the main supply rail within 25mm of the MCU. The 2.0V-3.6V rail benefits from a low-quiescent LDO such as the MCP1700 to maximize nanoWatt XLP deep-sleep savings - quiescent current of the regulator becomes part of the system sleep budget and should be <1uA for true low-power nodes.
Reserve RB6 (ICSPCLK) and RB7 (ICSPDAT) on the production PCB. Pull-ups or pull-downs on these pins can interfere with programming/debug unless their drive strength allows the programmer to override them. Failing to expose these pins adds rework cost when firmware needs to be updated on assemblies already in the field.
Route the analog inputs (RA0-RA5) with parallel ground tracks and a guard ring when high-impedance. The 10-bit ADC performance is sensitive to switching-noise coupling from nearby digital lines - keep UART and SPI traces 3-5mm away from analog traces and route them on adjacent layers with a ground plane between them.
Informations de conformité
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - automotive applications should consider PIC18F family variants with AEC-Q100 rating.
