PIC18F46J11-I/ML - 8-bit 64KB Flash MCU, 44-QFN | Microchip
부품 번호: PIC18F46J11-I/ML ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $4.18 | $4.18 |
| 10 | $3.76 | $37.60 |
| 100 | $3.34 | $334.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.61 | $2,610.00 |
PIC18F46J11-I/ML 개요
A PIC18 microcontroller is an 8-bit Harvard-architecture RISC MCU family from Microchip Technology, designed for embedded control applications requiring deterministic real-time performance and rich peripheral integration. The PIC18 J-series specifically targets low-power and high-performance designs, combining the nanoWatt XLP power-management technology with enhanced flash and PPS routing flexibility. Within the broader taxonomy, the PIC18 sits under 8-bit microcontroller -> microcontroller -> embedded IC -> semiconductor, and competes with other low-power MCUs such as the STM8 (STMicroelectronics) and ATmega (Microchip/Atmel) families.
Key differentiating features of the PIC18F46J11 include 64KB (32K x 16) self-programmable Flash with 10,000 erase/write cycles endurance, 256 bytes of EEPROM, 4KB RAM, deep-sleep current under 100 nA for battery-backed applications, and Peripheral Pin Select that allows digital peripheral I/O remapping without PCB rework. The 44-QFN (8x8) package with exposed thermal pad provides low thermal resistance and a compact 8 mm x 8 mm footprint suitable for space-constrained designs.
Architecturally, the PIC18F46J11 uses a 16-bit instruction word with 8-bit data, an 8-level hardware stack, a 31-level software stack via WREG/BSR paging, and a unified interrupt vector system. The 12-bit A/D converter supports up to 13 analog input channels with acquisition time programmable down to 0.5 µs, enabling mixed-signal feedback loops in motor control and sensor conditioning.
Typical applications include USB peripherals and HID devices (using the integrated USB 2.0 FS transceiver), low-power sensor nodes with battery operation, industrial control panels using the enhanced PWM modules, home appliance user interfaces, and cost-sensitive consumer electronics. Pin compatibility with the PIC18F4620, PIC18F4520, and PIC18F45J10 families enables drop-in upgrades along different price/feature points within Microchip's PIC18 portfolio.
When designing with this device, ensure that the exposed thermal pad is soldered to a sufficiently large copper pour for thermal and electrical grounding. The PPS feature must be configured early in initialization before any peripheral digital I/O is used, or pins default to their reset state. Programming voltage Vpp is internally generated, eliminating the need for an external 13V supply on most production programmers.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes that are not found in the manufacturer datasheet alone.
드롭인 대체품: PIC18F46J11-I/ML — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC18F46J11-I/ML (동일 폼 팩터 및 풋프린트) — 차이점: Package, Core Architecture, Operating Temperature, Timers, I/O Pins.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC18F46J11T-I/ML
✅ 드롭인✓ 재고 있음
$3.46 / 개
데이터시트 보기 →PIC18F46J11-I/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F46J50-I/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F45J11-I/ML
✅ 드롭인✓ 재고 있음
$3.25 / 개
데이터시트 보기 →PIC18F4620-I/ML
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F45J10-I/ML
✅ 드롭인✓ 재고 있음
$2.45 / 개
데이터시트 보기 →PIC18F46J11-I/ML 최대 정격 & 전기적 특성
| Core Architecture | 8-bit PIC18 Harvard RISC |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 4 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 48 MHz / 12 MIPS |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 36 |
| A/D Converter | 12-bit, up to 13 channels |
| Comparators | 2 |
| Timers | 4 (Timer0/1/2/3) |
| CCP/ECCP Modules | 2 CCP + 1 ECCP |
| USB | USB 2.0 Full-Speed, on-chip transceiver |
| Peripheral Pin Select (PPS) | Yes |
| Deep-Sleep Current | < 100 nA typical |
| 동작 온도 | -40 C to +85 C (industrial, -I) |
| 패키지 | 44-pin QFN (8 x 8 mm) with exposed pad |
| Pin Compatibility | PIC18F4620, PIC18F4520, PIC18F45J10 |
| 실장 유형 | Surface Mount |
| MSL 레벨 | 3 (per JEDEC J-STD-020) |
| RoHS 상태 | Compliant |
PIC18F46J11-I/ML 핀 구성
| 핀 1 | VDD — Positive supply voltage (2.0V to 3.6V) |
| 핀 2 | RA5 — Digital I/O / AN4 analog input |
| 핀 3 | RA6 — Digital I/O / OSC2 |
| 핀 4 | RA7 — Digital I/O / OSC1 |
| 핀 5 | VSS — Ground reference |
| 핀 6 | RB0 — Digital I/O / INT0 / AN12 |
| 핀 7 | RB1 — Digital I/O / INT1 / AN10 |
| 핀 8 | RB2 — Digital I/O / AN8 |
| 핀 9 | RB3 — Digital I/O / AN9 |
| 핀 10 | RB4 — Digital I/O / AN11 |
| 핀 11 | RB5 — Digital I/O / KBI2 |
| 핀 12 | RB6 — Digital I/O / PGC (ICSP clock) |
| 핀 13 | RB7 — Digital I/O / PGD (ICSP data) |
| 핀 14 | VUSB — USB 3.3V regulator output |
| 핀 15 | D- — USB D- line |
| 핀 16 | D+ — USB D+ line |
| 핀 17 | RC0 — Digital I/O / T1OSO / T1CKI |
| 핀 18 | RC1 — Digital I/O / T1OSI / ECCP2 |
| 핀 19 | RC2 — Digital I/O / ECCP1 / AN11 alt |
| 핀 20 | RC3 — Digital I/O / SCL / AN7 |
| 핀 21 | RC4 — Digital I/O / SDA |
| 핀 22 | RC5 — Digital I/O / SDO |
| 핀 23 | RC6 — Digital I/O / TX1 / CK1 |
| 핀 24 | RC7 — Digital I/O / RX1 / DT1 |
| 핀 25 | RD0 — Digital I/O |
| 핀 26 | RD1 — Digital I/O |
| 핀 27 | RD2 — Digital I/O |
| 핀 28 | RD3 — Digital I/O |
| 핀 29 | RD4 — Digital I/O |
| 핀 30 | RD5 — Digital I/O / CCP1 alt |
| 핀 31 | RD6 — Digital I/O / ECCP1 alt |
| 핀 32 | RD7 — Digital I/O / ECCP2 alt |
| 핀 33 | RE0 — Digital I/O / AN5 |
| 핀 34 | RE1 — Digital I/O / AN6 |
| 핀 35 | RE2 — Digital I/O / AN7 |
| 핀 36 | RE3 — Digital I/O / MCLR (reset) |
| 핀 37 | RF0 — Digital I/O |
| 핀 38 | RF1 — Digital I/O |
| 핀 39 | RF2 — Digital I/O |
| 핀 40 | RF3 — Digital I/O |
| 핀 41 | RF4 — Digital I/O |
| 핀 42 | RF5 — Digital I/O |
| 핀 43 | RF6 — Digital I/O |
| 핀 44 | RF7 — Digital I/O |
| 핀 45 | EP — Exposed thermal pad - solder to ground |
일반적인 애플리케이션
PIC18F46J11-I/ML 적합 용도: 6 애플리케이션s: USB HID Peripherals and Human Interface Devices, Low-Power Battery Sensor Nodes, Industrial Control Panels and HMI, Home Appliance User Interfaces, Cost-Sensitive Consumer Electronics, Educational and Hobbyist Projects.
USB HID Peripherals and Human Interface Devices
The PIC18F46J11-I/ML's integrated USB 2.0 Full-Speed transceiver with on-chip 1.5 kbps pull-up and Serial Interface Engine makes it ideal for HID-class USB peripherals such as keyboards, mice, game controllers, and custom input devices. According to datasheet 39932D, the USB module operates in low-speed (1.5 Mbps) and full-speed (12 Mbps) modes without an external PHY, reducing BOM and PCB area. With 64 KB Flash and 4 KB RAM it comfortably runs Microchip's USB stack and HID class driver. The 12 MIPS throughput at 48 MHz provides more than enough CPU bandwidth for HID polling at 1000 Hz. Place the 27-ohm USB series resistor close to the D+/D- pins and add ESD protection diodes to meet IEC 61000-4-2 air-discharge ratings. This combination of integrated USB, low pin count, and low power makes the PIC18F46J11 a frequent choice for USB dongles, custom input devices, and embedded PC accessories.
추천
Low-Power Battery Sensor Nodes
The PIC18F46J11-I/ML's nanoWatt XLP technology with deep-sleep current below 100 nA and Peripheral Pin Select flexibility makes it ideal for battery-powered wireless sensor nodes that wake periodically to read sensors and transmit data. According to datasheet 39932D, the deep-sleep mode retains RAM and RTCC with multiple wake-up sources including external interrupts, RTCC alarm, and WDT timeout. The integrated 12-bit ADC with up to 13 channels reads sensor outputs directly, while 4 KB RAM buffers collected samples before transmission. With 2.0 V to 3.6 V operation it runs directly from a single Li-ion or two AA cells. PPS allows designers to remap UART, SPI, and I2C onto any digital I/O, simplifying PCB routing when adding a 2.4 GHz radio like the MRF24J40. Estimated battery life on a 2000 mAh CR2032 cell exceeds 5 years at 1 wake-up per minute with sub-second active time.
추천
Industrial Control Panels and HMI
The PIC18F46J11-I/ML delivers deterministic real-time performance for industrial control panels and human-machine interface (HMI) applications through its 12 MIPS throughput, 4 timers, 2 CCP and 1 ECCP PWM modules, and 12-bit ADC. According to datasheet 39932D, the ECCP module supports complementary PWM outputs with programmable dead-time insertion, ideal for half-bridge motor drivers and power-converter control loops. With 36 I/O pins available on the 44-QFN package, designers can directly drive keypads, character LCDs, and indicator LEDs without external logic. The industrial -40C to +85C temperature range meets the requirements of factory floor equipment. Compared to a software-emulated PWM approach, the hardware ECCP frees the CPU for protocol stacks (Modbus RTU, RS-485) and the user-interface polling loop. Pair this MCU with the MCP2515 CAN controller for industrial CAN-bus connectivity.
추천
Home Appliance User Interfaces
The PIC18F46J11-I/ML fits home appliance user-interface designs such as washing machine front panels, microwave oven controls, and HVAC thermostats that require capacitive-touch support, character-LCD driving, and multi-tasking sensor reading. According to datasheet 39932D, the 13-channel 12-bit ADC reads thermistor temperature inputs while the ECCP module drives a buzzer for audible feedback at variable frequencies. The Peripheral Pin Select feature routes the I2C bus, SPI display interface, and UART to any available I/O pin, allowing compact 2-layer PCB layouts. Low deep-sleep current and 2.0 V to 3.6 V operation enable direct connection to backup supercapacitors during line-power brownouts. The 64 KB Flash accommodates large state-machine firmware for menu navigation, sensor calibration, and fault logging. Pin compatibility with PIC18F4620 enables dual-BOM sourcing if a higher-voltage 5V variant is needed for legacy designs.
추천
Cost-Sensitive Consumer Electronics
The PIC18F46J11-I/ML is positioned for cost-sensitive consumer electronics such as small kitchen appliances, toys, LED lighting controllers, and remote controls where BOM cost, footprint, and ease of programming outweigh raw CPU performance. According to datasheet 39932D, the integrated USB, A/D, comparators, and PWM modules eliminate the need for external chips, reducing the BOM by 2-3 components compared to MCUs that require external peripherals. The 44-QFN package at 8 mm x 8 mm fits inside ultra-compact enclosures, while the 2.0 V to 3.6 V supply range allows direct operation from 2x AA cells. The PIC18 instruction set is simple enough that firmware can be brought up in days using MPLAB X IDE with the XC8 compiler and the free Microchip Code Configurator (MCC) code generator. PPS lets designers route the EUSART, MSSP, and timer captures to any I/O pin without rerouting the PCB.
추천
Educational and Hobbyist Projects
The PIC18F46J11-I/ML is widely used in educational electronics, university microcontroller courses, and hobbyist maker projects due to its low price, free MPLAB X IDE toolchain, and rich documentation. According to datasheet 39932D, the PIC18F46J11 family is supported by the Microchip Code Configurator (MCC) which auto-generates peripheral initialization code, reducing bring-up time from weeks to hours for first-time users. The PICkit 4 ($49 list price) in-circuit debugger plus the free XC8 C compiler creates a zero-cost software development environment, and the PIC18 instruction set is well-documented in textbooks and online tutorials. The 44-QFN package is challenging for hand-soldering but works well with breakout boards and QFN-to-DIP adapter PCBs. With 64 KB Flash and 4 KB RAM, students can implement USB device classes, TCP/IP stacks via ENC28J60 SPI, and even basic RTOS kernels for senior design projects.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC18F46J11-I/ML — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC18F46J11T-I/ML | PIC18F46J11-I/PT | PIC18F46J50-I/PT | PIC18F45J11-I/ML | PIC18F4620-I/ML | PIC18F45J10-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8) | 44-QFN (8x8) - same | 44-TQFP - different footprint, pin-compatible electrically | 44-TQFP - different footprint, pin-compatible electrically | 44-QFN (8x8) - same | 44-QFN - same | 44-QFN - same |
| Flash Memory | 64 KB | 64 KB | 64 KB | 96 KB | 32 KB | 64 KB | 32 KB |
| RAM | 4 KB | 4 KB | 4 KB | 3.8 KB | 1 KB | 3.9 KB | 1 KB |
| Operating Voltage | 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 | 4.2V to 5.5V | 2.0V to 3.6V |
| USB | USB 2.0 FS, integrated | USB 2.0 FS, integrated | USB 2.0 FS, integrated | USB 2.0 FS, integrated | USB 2.0 FS, integrated | No USB | No USB full-speed |
| Peripheral Pin Select | Yes | Yes | Yes | Yes | Yes | No | No |
| Maximum 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 | 40 MHz / 10 MIPS |
주요 차별점
- Integrated USB 2.0 Full-Speed with on-chip transceiver (vs PIC18F4620-I/ML)
- Peripheral Pin Select (PPS) for digital peripheral routing (vs PIC18F4620-I/ML)
- nanoWatt XLP deep-sleep current below 100 nA (vs PIC18F45J10-I/ML)
- Pin compatibility with multiple PIC18 families for BOM flexibility (vs PIC18F45J11-I/ML)
설계 노트
Estimated: The 44-QFN package exposed pad carries the ground return current and provides the primary thermal path. Solder the EP to a ground pour with at least 100 thermal vias (0.3 mm drill, 0.6 mm pitch) to the inner ground plane. At maximum 48 MHz operation with all peripherals active, internal dissipation is typically below 100 mW - the QFN thermal pad easily supports this without active cooling. For applications with sustained GPIO toggle loads, monitor junction temperature via the on-chip diode sense.
Place a 100 nF decoupling capacitor within 5 mm of each VDD pin and a single 10 uF bulk capacitor near the IC. The VUSB pin requires its own 220 nF decoupling capacitor per datasheet 39932D; this capacitor feeds the internal USB 3.3 V regulator and must be located close to the package. For USB applications, maintain 90-ohm differential impedance on D+/D- traces and route them parallel with matched length. Keep the 27-ohm USB series resistor within 5 mm of the IC pin and add ESD protection diodes (USBLC6-2SC6) near the USB connector for IEC 61000-4-2 compliance.
Do not leave the MCLR pin floating - tie it to VDD through a 10 kohm pull-up resistor and provide a 100 nF cap to ground for noise immunity. The PPS (Peripheral Pin Select) feature must be unlocked and configured immediately after reset, or peripheral pins will remain in their default positions. According to datasheet 39932D, the analog pins AN4-AN11 share pins with PORTB and PORTE digital I/O; configure them as analog before reading the A/D converter to prevent digital noise coupling. Programming voltage Vpp is internally generated, so do not apply external high voltage to MCLR during normal operation.
The 12-bit ADC requires careful PCB layout for full-resolution conversion. Keep analog input traces short and away from digital switching lines; surround the analog ground region with a guard trace tied to analog ground. According to datasheet 39932D, ADC acquisition time is programmable and should be at least 1.5x the source impedance RC time constant. Place the AVDD/AVSS pins with their own 100 nF decoupling capacitor; AVSS should connect to a clean analog ground that ties to digital ground at a single point (star ground) to avoid ground-loop noise coupling into the ADC.
규정 준수 정보
RoHS and REACH compliant per Microchip product page. Halogen-free per Microchip environmental compliance data. Industrial -I temperature range (-40C to +85C), not AEC-Q100 qualified for automotive - select AEC-Q100 qualified parts from PIC18F46J11 family for automotive designs.
