PIC18LF46J53-I/ML - 64KB Flash USB MCU 8-Bit 48MHz | Microchip
N.º da peça: PIC18LF46J53-I/ML ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.36 | $4,36 |
| 10 | $3.92 | $39,20 |
| 100 | $3.49 | $349,00 |
| 500 | $3.1 | $1.550,00 |
| 1.000 | $2.78 | $2.780,00 |
PIC18LF46J53-I/ML Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a rich set of peripherals (ADC, timers, communication ports, USB). The PIC18 family uses Microchip's enhanced Harvard RISC architecture, where separate program and data buses let the CPU fetch an instruction and access data in the same clock cycle. The LF 'J' series is built on a deep-submicron process that enables nanoWatt XLP sleep currents measured in nanoamps, making the device suitable for battery-powered and energy-harvesting designs.
Key features of this part include: 12-bit A/D converter with up to 13 channels, two analog comparators, a 5-bit DAC, multiple Enhanced USART, SPI, and I2C peripherals, two capture/compare/PWM modules, and a full-speed USB 2.0 device/host/OTG controller with an internal 3.3V regulator. The 48 MHz internal oscillator and 31 kHz low-power secondary oscillator provide flexible clocking, while the nanoWatt XLP technology delivers sleep currents below 100 nA typical.
Architecturally, the device uses a modified Harvard core with a hardware multiply, 16-bit instruction width, and a 32-level hardware stack. The internal 3.3V LDO allows direct connection to a single-cell Li-Ion or 5V USB bus, while the integrated USB transceiver and on-chip pull-up resistors simplify USB-device designs by removing external components.
Typical applications include USB HID peripherals such as mice, keyboards, and game controllers, USB-to-UART bridges, USB data loggers, medical USB sensors, low-power wireless sensor nodes, and consumer electronics that require a 12-bit ADC. Its combination of low power, integrated USB, and 44-pin QFN makes it well suited for space-constrained handheld designs.
When designing with this part, use the exposed pad as the primary thermal and electrical ground path, and pair the device with MPLAB X IDE and one of Microchip's programmer/debuggers such as PICkit 5, ICD 4, or MPLAB Snap for development. Ensure the 3.3V LDO bulk capacitor meets the datasheet's ESR requirement, and configure the VUSB3V3 pin to source or sink mode per your bus-power architecture.
This page combines distributor pricing, verified drop-in alternatives, and practical design notes that the bare datasheet does not offer.
Alternativas drop-in para PIC18LF46J53-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 PIC18LF46J53-I/ML (mesmo formato e footprint) — diferindo em Package, ADC, I/O Pins, Core, Series.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18LF46J53T-I/ML
✅ Drop-In✓ Em estoque
$3.05 / unidade
Ver ficha técnica →PIC18LF46J50-I/ML
✅ Drop-In✓ Em estoque
$3.75 / unidade
Ver ficha técnica →PIC18LF4553-I/ML
✅ Drop-In✓ Em estoque
$5.1 / unidade
Ver ficha técnica →PIC18LF4585-I/ML
✅ Drop-In✓ Em estoque
$5.42 / unidade
Ver ficha técnica →PIC18LF4539-I/ML
✅ Drop-In✓ Em estoque
$4.3 / unidade
Ver ficha técnica →PIC18F46J53-I/ML
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
PIC18LF46J53-I/ML Classificações máximas e características elétricas
| Core | PIC18 (8-bit RISC, enhanced Harvard) |
| Series | PIC18 XLP 18J (nanoWatt XLP) |
| Program Memory | 64 KB Flash (32K x 16) |
| RAM | 3.8 KB (3800 bytes) |
| Data EEPROM | 0 bytes (not present in this family) |
| Maximum CPU Frequency | 48 MHz (12 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| ADC | 12-bit, up to 13 channels |
| Comparators | 2 analog comparators |
| DAC | 5-bit DAC |
| USB | USB 2.0 Full-Speed Device/Host/OTG with internal 3.3V regulator |
| Communication | 2x EUSART, 2x MSSP (SPI/I2C), USB |
| Temperatura de operação | -40C to +85C (Industrial) |
| Encapsulamento | 44-QFN (8x8 mm) with exposed pad |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do PIC18LF46J53-I/ML
| Pino 1 | RA0/AN0/C1IN+/UOE — Analog input 0 / comparator input / USB output enable (per datasheet) |
| Pino 2 | RA1/AN1/C2IN+/RP1 — Analog input 1 / comparator 2 input / remappable pin |
| Pino 3 | RA2/AN2/VREF-/CVREF-/C2OUT — Analog input 2 / negative reference / comparator 2 output |
| Pino 4 | RA3/AN3/VREF+/CVREF+/C1OUT — Analog input 3 / positive reference / comparator 1 output |
| Pino 5 | RA4/AN4/T0CKI — Analog input 4 / Timer 0 clock input |
| Pino 6 | RA5/AN5/SS1/HLVDIN — Analog input 5 / SPI slave select / high/low voltage detect input |
| Pino 7 | VDD — Positive supply (2.0V-3.6V) |
| Pino 8 | VSS — Ground |
| Pino 9 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock input |
| Pino 10 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output |
| Pino 11 | RC0/PMP/T1OSO/T1CKI — Parallel Master Port / Timer 1 oscillator output / Timer 1 clock |
| Pino 12 | RC1/PMP/T1OSI/ECCP2/P2A — PMP / Timer 1 oscillator input / ECCP2 output |
| Pino 13 | RC2/PMP/CCP1/P1A — PMP / CCP1 output |
| Pino 14 | VUSB — USB 3.3V regulator output (per datasheet) |
| Pino 15 | D+/RG0 — USB D+ / remappable I/O |
| Pino 16 | D-/RG1 — USB D- / remappable I/O |
| Pino 17 | RG2/AN6/C2IN+/PMSK — Analog input 6 / comparator 2 input / parallel master port strobe |
| Pino 18 | RG3/AN7/C2IN-/PMPK — Analog input 7 / comparator 2 input |
| Pino 19 | RE0/PMP/RD — Parallel Master Port read strobe |
| Pino 20 | RE1/PMP/WR — Parallel Master Port write strobe |
| Pino 21 | RE2/PMP/CS — Parallel Master Port chip select |
| Pino 22 | VDDCORE — Internal core voltage decoupling (per datasheet) |
| Pino 23 | RF7/AN8 — Analog input 8 |
| Pino 24 | RF6/AN9 — Analog input 9 |
| Pino 25 | RF5/AN10/CVREF — Analog input 10 / comparator voltage reference |
| Pino 26 | RF4/AN11 — Analog input 11 |
| Pino 27 | RF3/AN12 — Analog input 12 |
| Pino 28 | RF2/AN13 — Analog input 13 |
| Pino 29 | RB0/AN12/INT0/FLT0/SDI/SDA — Analog input / interrupt 0 / SPI data in / I2C data |
| Pino 30 | RB1/AN10/INT1/SCK/SCL — Analog input / interrupt 1 / SPI clock / I2C clock |
| Pino 31 | RB2/AN8/INT2/SDO — Analog input / interrupt 2 / SPI data out |
| Pino 32 | RB3/INT3/CCP2/P2A — Interrupt 3 / CCP2 output |
| Pino 33 | RB4/CCP5/P1D — CCP5 output |
| Pino 34 | RB5/CCP6/P1E — CCP6 output |
| Pino 35 | RB6/PGC — ICSP clock / ICD clock |
| Pino 36 | RB7/PGD — ICSP data / ICD data |
| Pino 37 | RD0/PMD0 — Parallel Master Port data 0 |
| Pino 38 | RD1/PMD1 — Parallel Master Port data 1 |
| Pino 39 | RD2/PMD2 — Parallel Master Port data 2 |
| Pino 40 | RD3/PMD3 — Parallel Master Port data 3 |
| Pino 41 | RC6/ECCP3/P3A/TX2/CK2 — ECCP3 output / Enhanced USART 2 transmit |
| Pino 42 | RC7/ECCP4/P3B/RX2/DT2 — ECCP4 output / Enhanced USART 2 receive |
| Pino 43 | VSS — Ground (per datasheet) |
| Pino 44 | VDD — Positive supply (per datasheet) |
Aplicações típicas
PIC18LF46J53-I/ML é adequado para 6 aplicaçãos: USB HID Peripheral (Keyboard/Mouse/Game Controller), USB-to-UART Bridge / CDC Virtual COM Port, Portable USB Data Logger / Sensor Interface, USB-Connected Medical / Health Sensor, Industrial USB Configuration / Programming Port, Consumer IR / RF Remote with USB Charging Dongle.
USB HID Peripheral (Keyboard/Mouse/Game Controller)
The PIC18LF46J53-I/ML is purpose-built for USB HID peripherals thanks to its integrated USB 2.0 Full-Speed transceiver, on-chip pull-up resistors, internal 3.3V regulator, and 64 KB Flash that comfortably holds HID class drivers plus application firmware. With 12 MIPS CPU performance at 48 MHz, the device handles HID polling at the 1 ms USB Full-Speed interval with substantial headroom for matrix scanning, debouncing, and LED effects. The 44-pin QFN (8x8 mm) exposed-pad package keeps the PCB footprint compact for handheld designs, while nanoWatt XLP sleep currents below 100 nA typical extend battery life in wireless HID dongles. Pair with the Microchip MCHPFSUSB stack and MPLAB Code Configurator for fast HID enumeration.
Recomendado
USB-to-UART Bridge / CDC Virtual COM Port
Engineers building USB-to-UART bridges use the PIC18LF46J53-I/ML to replace FTDI-style cables with a single chip, leveraging the integrated USB transceiver and the on-chip Enhanced USART (EUSART). The 12 MIPS CPU executes the Microchip USB CDC stack plus a transparent UART channel at 921600 baud with no measurable throughput bottleneck. Internal 3.3V LDO powers the USB transceiver from VBUS, removing the need for an external regulator in 5V-tolerant designs. With 64 KB Flash and 3.8 KB RAM, the bridge firmware fits comfortably while leaving room for vendor-specific commands. The 44-QFN exposed pad improves thermal dissipation during sustained USB traffic.
Recomendado
Portable USB Data Logger / Sensor Interface
The PIC18LF46J53-I/ML fits 12-bit ADC battery-powered data loggers thanks to its 13-channel 12-bit ADC, 64 KB Flash for sample buffering and USB mass-storage stacks, and nanoWatt XLP deep-sleep current under 100 nA. Designers can wake on ADC threshold, sample, store to RAM, and dump the buffer over USB at the end of each session. The internal 3.3V LDO enables direct USB bus powering without external regulation, and the 2.0V to 3.6V VDD range supports single-cell Li-Ion operation. The 44-pin QFN (8x8) exposed-pad footprint keeps the PCB small enough for wearable form factors while exposing ample GPIO for digital sensors.
Recomendado
USB-Connected Medical / Health Sensor
The PIC18LF46J53-I/ML serves USB-connected medical sensors such as pulse oximeters, blood-pressure cuffs, and USB temperature probes, where its 12-bit ADC, low-noise analog comparators, and integrated USB simplify BOM and shrink PCB area. The 2.0V to 3.6V operating range lets designers power the device from a single Li-Ion cell when untethered, while the internal 3.3V LDO provides clean USB bus power when plugged in. 64 KB Flash stores both the USB class driver and the medical firmware, with 3.8 KB RAM holding USB packet buffers and oversampled ADC results. The 44-QFN exposed pad helps thermal management during continuous sampling.
Recomendado
Industrial USB Configuration / Programming Port
Factory automation and process-control equipment often need a USB port for firmware updates, configuration, and diagnostics. The PIC18LF46J53-I/ML provides a USB 2.0 Full-Speed device interface plus 64 KB Flash for both application logic and the bootloader, all in a compact 44-QFN package that fits inside DIN-rail enclosures. The 12-bit ADC samples process variables, and the Enhanced USART bridges to RS-485 for legacy fieldbus compatibility. The -40C to +85C industrial temperature rating covers factory-floor environments. The internal 3.3V regulator eliminates an external LDO when the host supplies 5V.
Recomendado
Consumer IR / RF Remote with USB Charging Dongle
The PIC18LF46J53-I/ML fits USB-C rechargeable remote controls, where its nanoWatt XLP deep-sleep currents under 100 nA keep the standby drain below typical self-discharge rates, and its USB port provides both charging and firmware update. The 12-bit ADC and EUSART drive IR transmitters or 2.4 GHz transceivers such as the MRF24J40, while 64 KB Flash fits USB HID stacks plus RF protocol stacks. The 44-QFN exposed pad package fits inside slim remote enclosures. Internal 3.3V LDO powers the USB transceiver without external regulation, keeping the BOM small.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF46J53-I/ML — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18LF46J53T-I/ML | PIC18LF46J50-I/ML | PIC18LF4553-I/ML | PIC18LF4585-I/ML | PIC18LF4539-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8) | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same |
| Flash Memory | 64 KB | 64 KB (same) | 64 KB (same) | 32 KB (-50%) | 48 KB (-25%) | 24 KB (-62%) |
| RAM | 3.8 KB | 3.8 KB (same) | 3.8 KB (same) | 2 KB (-47%) | 3.3 KB (-13%) | 1.4 KB (-63%) |
| USB Support | USB 2.0 Full-Speed | USB 2.0 Full-Speed (same) | USB 2.0 Full-Speed | USB 2.0 Full-Speed | No USB (CAN instead) | No USB |
| Supply Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V (same) | 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 |
| Maximum CPU Frequency | 48 MHz (12 MIPS) | 48 MHz (same) | 48 MHz | 48 MHz | 40 MHz (-17%) | 40 MHz (-17%) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (same) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Principais diferenciais
- Highest Flash density in the PIC18LF46Jxx 44-QFN family (vs PIC18LF4553-I/ML)
- Includes integrated USB 2.0 Full-Speed transceiver (vs PIC18LF4585-I/ML)
- nanoWatt XLP extreme low-power sleep current (vs PIC18LF46J50-I/ML)
Notas de projeto
The 44-pin QFN (8x8 mm) exposed-pad package requires the central thermal pad to be soldered directly to a ground copper pour that extends at least 8 thermal vias (0.3 mm drill, 0.6 mm pitch) to the inner ground plane. This provides the primary electrical ground return and a low thermal resistance path for the ~3.8 KB RAM and internal 3.3V LDO. Without proper stitching vias, the device can experience latch-up or thermal shutdown under sustained USB traffic. Keep the via array within the recommended pad geometry shown in the Microchip packaging application note.
The internal 3.3V USB regulator requires a 4.7 uF low-ESR ceramic capacitor on the VUSB3V3 pin and a 1 uF bypass on the core VDD pins, per datasheet DS80498B. Decoupling must use short traces placed as close to the IC as possible. For bus-powered designs, route VBUS through a 10 uF bulk capacitor on the host connector side. Estimated: at full USB traffic and 48 MHz CPU, VDD current draw approaches 25 mA; ensure trace widths carry at least 50 mA without excessive IR drop on a 2-layer PCB.
Do not enable the internal 3.3V LDO when VBUS is not present and the device is powered from a 3.3V rail; this can back-drive the regulator and damage the USB transceiver. Always tie VBUS detection via the SIE firmware before enabling the regulator. According to Microchip errata documentation, some early silicon revisions require a software workaround for USB suspend current; check the device ID and revision register against the latest errata before committing to high-volume firmware.
Route the USB D+ and D+ traces as a 90-ohm differential pair with matched length to within 150 mil, keeping them away from high-speed switching nodes such as PWM outputs or oscillator traces. Place a common-mode choke or ferrite bead on VBUS if the design must pass USB-IF compliance testing for EMI. The exposed-pad ground stitching vias double as a reference plane return; do not route signal traces beneath the QFN body.
Informações de conformidade
RoHS and REACH compliance per Microchip product page. Industrial temperature grade only (no AEC-Q100 automotive variant in the J53 family).
