PIC18F46J11T-I/ML - 8-Bit 48MHz MCU 64KB Flash 44-QFN | Microchip
N.º da peça: PIC18F46J11T-I/ML ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.4 | $5,40 |
| 10 | $4.86 | $48,60 |
| 100 | $4.32 | $432,00 |
| 500 | $3.89 | $1.945,00 |
| 1.000 | $3.46 | $3.460,00 |
PIC18F46J11T-I/ML Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control and low-power embedded applications. PIC18 J-series MCUs extend Microchip's enhanced 8-bit architecture with up to 12 MIPS throughput, integrated nanoWatt XLP power management, and Peripheral Pin Select that allows flexible remapping of digital peripherals to any I/O pin. The PIC18F46J11 specifically targets cost-sensitive applications requiring USB, CAN, or graphics connectivity at very low active and sleep currents.
Key features include 64 KB (32K x 16) self-programmable Flash with 1 KB EEPROM emulation, 12-bit A/D converter with up to 13 input channels, two analog comparators with rail-to-rail inputs, two Enhanced USART modules supporting RS-232/RS-485 and LIN, two MSSP ports for SPI and I2C (master/slave), and a dedicated Full-Speed USB 2.0 transceiver. The PPS system allows digital peripherals to be mapped to a wide range of pin functions, simplifying PCB layout. Deep Sleep mode reduces current draw to less than 100 nA typical while maintaining RTCC and wake-on-change functionality.
The PIC18F46J11 architecture is built on an enhanced Harvard RISC core with a hardware multiplier, 16-bit instructions, and 8-bit data path. A modified Harvard memory map separates program Flash (up to 64 KB) from data RAM (4 KB) and configures up to 1 KB of EEPROM emulation in Flash. Internal RC oscillator options up to 48 MHz with PLL eliminate external crystals in many designs, while four 16-bit timers and an Enhanced Capture/Compare/PWM module support motor-control and waveform-generation tasks.
Typical applications include USB peripherals such as HID-class devices and CDC serial adapters, CAN-node industrial sensors, low-power battery sensor nodes with sleep currents under 100 nA, graphical LCD drivers, and consumer appliances requiring LIN bus connectivity. The wide operating voltage range of 2.0V to 3.6V supports both single-cell Li-ion and 3.3V regulated rails.
When designing with this MCU, ensure the VDDCORE pin is bypassed with a 10 uF bulk capacitor and that the ENVREG pin is tied high for internal voltage regulator operation. Decouple each VDD/VSS pair with 100 nF ceramic capacitors placed within 3 mm of the pins. For USB applications, the internal 3.3V regulator must be enabled and a 200-ohm series resistor used on the D+/D- lines.
Alternativas drop-in para PIC18F46J11T-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 PIC18F46J11T-I/ML (mesmo formato e footprint) — diferindo em Package, Timers, Core Architecture, Operating Temperature, ADC.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F46J11-I/ML
✅ Drop-In✓ Em estoque
$2.61 / unidade
Ver ficha técnica →PIC18F46J11-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F45J11T-I/ML
✅ Drop-In✓ Em estoque
$3.2 / unidade
Ver ficha técnica →PIC18F46J13-I/ML
✅ Drop-In✓ Em estoque
$4.38 / unidade
Ver ficha técnica →PIC18F46J50-I/ML
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F46K22-I/ML
✅ Drop-In✓ Em estoque
$3.08 / unidade
Ver ficha técnica →PIC18F46K20-I/ML
✅ Drop-In✓ Em estoque
$3.52 / unidade
Ver ficha técnica →PIC18F46J11T-I/ML Classificações máximas e características elétricas
| Core Architecture | PIC18 (8-bit RISC) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 4 KB |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| Encapsulamento | 44-QFN (8x8 mm) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 C to +85 C (Industrial) |
| Analog Comparators | 2 (rail-to-rail inputs) |
| Communication Interfaces | 2x Enhanced USART, 2x MSSP (SPI/I2C), USB 2.0 Full-Speed |
| Timers | 4x 16-bit + 1x 8-bit |
| Peripheral Pin Select (PPS) | Yes |
| Status RoHS | Compliant |
Configuração de pinos do PIC18F46J11T-I/ML
| Pino 1 | RA0 — Analog input / Digital I/O |
| Pino 2 | RA1 — Analog input / Digital I/O |
| Pino 3 | RA2 — Analog input / Digital I/O |
| Pino 4 | RA3 — Analog input / Digital I/O |
| Pino 5 | VDD — Positive supply |
| Pino 6 | VSS — Ground |
| Pino 7 | RA4 — Analog input / Digital I/O |
| Pino 8 | RA5 — Analog input / Digital I/O |
| Pino 9 | RB0 — Digital I/O with interrupt-on-change |
| Pino 10 | RB1 — Digital I/O with interrupt-on-change |
| Pino 11 | RB2 — Digital I/O with interrupt-on-change |
| Pino 12 | RB3 — Digital I/O with interrupt-on-change |
| Pino 13 | RB4 — Digital I/O with interrupt-on-change |
| Pino 14 | RB5 — Digital I/O with interrupt-on-change |
| Pino 15 | RB6 — ICSP clock / Digital I/O |
| Pino 16 | RB7 — ICSP data / Digital I/O |
| Pino 17 | VDDCORE — Regulated core voltage decoupling |
| Pino 18 | VSS — Ground |
| Pino 19 | RC0 — Digital I/O |
| Pino 20 | RC1 — Digital I/O |
| Pino 21 | RC2 — Digital I/O |
| Pino 22 | RC3 — Digital I/O / SCL |
| Pino 23 | RC4 — Digital I/O / SDA |
| Pino 24 | RC5 — Digital I/O |
| Pino 25 | RC6 — Digital I/O / TX |
| Pino 26 | RC7 — Digital I/O / RX |
| Pino 27 | VUSB — USB internal regulator output |
| Pino 28 | VDD — Positive supply |
| Pino 29 | VSS — Ground |
| Pino 30 | RD0 — Digital I/O |
| Pino 31 | RD1 — Digital I/O |
| Pino 32 | RD2 — Digital I/O |
| Pino 33 | RD3 — Digital I/O |
| Pino 34 | RD4 — Digital I/O |
| Pino 35 | RD5 — Digital I/O |
| Pino 36 | RD6 — Digital I/O |
| Pino 37 | RD7 — Digital I/O |
| Pino 38 | VSS — Ground |
| Pino 39 | RE0 — Digital I/O |
| Pino 40 | RE1 — Digital I/O |
| Pino 41 | RE2 — Digital I/O |
| Pino 42 | RE3 — Digital I/O |
| Pino 43 | VDD — Positive supply |
| Pino 44 | RF5 — Digital I/O |
| Pino EP | EP — Exposed thermal pad - connect to VSS |
Aplicações típicas
PIC18F46J11T-I/ML é adequado para 6 aplicaçãos: USB HID Peripheral Device, Industrial CAN Sensor Node, Low-Power Battery Sensor Hub, Graphical LCD Controller, Consumer Appliance LIN Bus Node, Educational and Hobby Development Platform.
USB HID Peripheral Device
The PIC18F46J11T-I/ML integrates a Full-Speed USB 2.0 transceiver with internal pull-up resistors, making it ideal for HID-class USB peripherals such as keyboards, mice, game controllers, and custom input devices. Its 48 MHz core delivers 12 MIPS of processing throughput, sufficient for USB polling at 1 kHz while simultaneously servicing HID reports, scanning matrices, and running low-latency consumer-control logic. The 64 KB Flash accommodates a full HID descriptor stack plus custom report handling, while 4 KB RAM buffers HID reports without DMA. Compared to a discrete USB-capable MCU plus external transceiver, this part reduces BOM cost by integrating the transceiver and voltage regulator. Operating from 2.0V to 3.6V, it draws under 100 nA in Deep Sleep, ideal for USB bus-powered devices that must meet Suspend current limits.
Recomendado
Industrial CAN Sensor Node
The PIC18F46J11T-I/ML's 64 KB Flash and 4 KB RAM are well-matched for CAN 2.0B sensor nodes used in industrial automation, with an Enhanced USART module capable of running CAN via external transceivers or CAN-in-software mode. Its industrial -40C to +85C temperature grade allows deployment in factory-floor cabinets without additional thermal qualification. The 12-bit ADC with up to 13 input channels directly interfaces with thermocouples, RTDs, and 4-20 mA current loops through simple op-amp front ends. Compared to a Cortex-M0 solution at the same price point, this part offers deterministic interrupt latency that simplifies CAN message scheduling. NanoWatt XLP Deep Sleep mode drops quiescent current below 100 nA, ideal for battery-backed remote sensors that wake on RTCC alarm.
Recomendado
Low-Power Battery Sensor Hub
The PIC18F46J11T-I/ML leverages Microchip's nanoWatt XLP technology to achieve typical Deep Sleep currents below 100 nA while maintaining RTCC and wake-on-change functionality, making it suitable for battery-powered sensor hubs in IoT and metering applications. From a single 3.0V CR2032 coin cell or 2xAA battery, the 2.0V to 3.6V operating range supports multi-year deployment. Its 13-channel 12-bit ADC directly digitizes thermistor, photocell, and voltage-divider sensor signals without external amplifiers. The 64 KB Flash supports a LoRaWAN, Sigfox, or sub-GHz proprietary protocol stack when paired with an SPI-attached transceiver. Compared to an external RTC + MCU combination, this part consolidates real-time clock and main processor into a single QFN footprint, simplifying PCB layout in compact battery enclosures.
Recomendado
Graphical LCD Controller
The PIC18F46J11T-I/ML's 48 MHz core driving 12 MIPS can refresh small graphical LCD and OLED panels at up to QVGA (320x240) resolutions through its Parallel Master Port (PMP) peripheral. The 64 KB Flash stores framebuffer data plus font tables and BMP image assets for HMI interfaces, while 4 KB RAM serves as a partial framebuffer for full-screen updates. Peripheral Pin Select (PPS) allows flexible pin assignment of PMP data and control lines, simplifying PCB routing on 4-layer boards. Compared to a discrete LCD controller + MCU, this integrated approach reduces BOM count and improves graphic-update latency by eliminating an external bus interface. Two MSSP ports (SPI/I2C) provide secondary connectivity for touch-panel sensors and EEPROM storage expansion.
Recomendado
Consumer Appliance LIN Bus Node
The PIC18F46J11T-I/ML's Enhanced USART module supports LIN 1.3 and 2.0 slave communication when paired with a small LIN transceiver IC, ideal for low-cost nodes in white goods, HVAC, and automotive cabin appliances. Its wide 2.0V to 3.6V supply range accepts single-cell Li-ion packs, while 5V-tolerant digital I/O via internal clamps tolerates automotive 12V transients when externally protected. The 12-bit ADC and dual comparators handle motor current sensing, NTC temperature monitoring, and switch position decoding without external signal conditioning. Compared to a dedicated LIN slave IC plus MCU combination, this single-chip solution reduces system cost and PCB area. Peripheral Pin Select allows flexible assignment of LIN RX/TX to any I/O pin during board layout.
Recomendado
Educational and Hobby Development Platform
The PIC18F46J11T-I/ML is well-suited to educational embedded-systems labs and hobbyist development boards due to its mature MPLAB X IDE and XC8 compiler toolchain, plus free Microchip Libraries for Application (MLA) framework support. The 64 KB Flash accommodates full USB, I2C, SPI, and ADC code examples, while 4 KB RAM is sufficient for stack-heavy example projects. Peripheral Pin Select allows students to learn dynamic I/O remapping concepts without rewiring circuits. The 44-QFN 8x8 mm footprint maps cleanly onto common 0.1-inch header breakout boards available from hobbyist suppliers. Compared to an older PIC16 or PIC18 baseline MCU, this part adds USB, deep sleep, and PPS features that match modern industry expectations for entry-level engineering roles.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18F46J11T-I/ML — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F46J11-I/ML | PIC18F45J11T-I/ML | PIC18F46J13-I/ML | PIC18F46J50-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Flash Memory | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB |
| RAM | 4 KB | 4 KB | 3.9 KB | 4 KB | 4 KB |
| Maximum Frequency | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) |
| USB Support | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed + OTG) |
| A/D Converter | 10-bit (up to 13 ch) | 10-bit (up to 13 ch) | 10-bit (up to 13 ch) | 12-bit (up to 12 ch) | 10-bit (up to 13 ch) |
| Deep Sleep Current | <100 nA typical | <100 nA typical | <100 nA typical | <100 nA typical | <100 nA typical |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
Principais diferenciais
- Identical silicon die in Tape & Reel versus Tray packaging (vs PIC18F46J11-I/ML)
- Lower Flash at lower price point in same family (vs PIC18F45J11T-I/ML)
- Newer J13 family upgrade path with 12-bit ADC (vs PIC18F46J13-I/ML)
- Adds on-the-go USB controller and certified stack (vs PIC18F46J50-I/ML)
Notas de projeto
When using the internal USB voltage regulator, tie the ENVREG pin to VDD and place a 10 uF low-ESR ceramic capacitor on the VDDCORE pin within 3 mm. This regulator powers the 1.8V core from the 3.3V VDD rail. Without USB operation, you may disable the regulator via ENVREG tied low to ground and provide an external 1.8V source to VDDCORE; however, internal regulator mode simplifies the BOM and improves supply-noise rejection.
Place 100 nF 0.1 uF decoupling capacitors on every VDD/VSS pair, located within 3 mm of the respective pins and routed with short wide traces. The 44-QFN exposed thermal pad (EP) must be soldered to a VSS copper pour with multiple thermal vias to a bottom-layer ground plane. Inadequate EP soldering causes junction-temperature rise and can prevent USB Full-Speed operation due to internal thermal shutdown. Use a 4-layer PCB stack-up with continuous ground plane for best EMI performance.
The MCLR reset pin is mandatory for proper operation in normal mode; do not leave it floating. Tie it through a 10 kohm pull-up to VDD and to ground through a 100 nF cap for noise immunity. The ICSP clock and data pins RB6/RB7 are shared with general I/O and can be disabled after programming; ensure PGECx/PGEDx pin assignment does not conflict with critical system signals. PPS register writes must complete before peripheral enable, or unexpected signal glitches may occur during boot.
Estimated: at 48 MHz core clock with USB active and all peripherals enabled, the device consumes approximately 25 mA from a 3.3V supply (82 mW dissipation). With a 44-QFN 8x8 mm footprint and JEDEC EIA/JESD51-7 4-layer PCB test board, thermal resistance (theta_JA) is approximately 28 C/W, yielding a junction temperature rise of approximately 2.3 C above ambient. At industrial -40C to +85C, this remains well below the 150C junction maximum under normal USB operation.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade (-40C to +85C) part. For automotive applications, choose PIC18F46K80-I/ML which carries AEC-Q100 Grade 1 qualification. Lead-free finish; halogen-free mold compound.