PIC18F4539-I/PT - 8-Bit MCU 40MHz 24KB Flash 44-TQFP | Microchip
부품 번호: PIC18F4539-I/PT ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $9.1 | $9.10 |
| 10 | $8.2 | $82.00 |
| 100 | $7.3 | $730.00 |
| 500 | $6.55 | $3,275.00 |
| 1,000 | $5.85 | $5,850.00 |
PIC18F4539-I/PT 개요
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, RAM, and a rich set of peripheral I/O into one package. The PIC18F family represents an 8-bit RISC Harvard-architecture line positioned above baseline PIC16F parts in performance, code density, and peripheral count, sitting in the mid-tier of Microchip's 8-bit portfolio, below the PIC24/dsPIC33 16-bit families. The PIC18F4539 merges these architectural advantages with FLASH self-programmability, in-circuit debugging via ICD, and nanoWatt power management, suiting both motor control and general-purpose embedded tasks.
Key differentiating features include 32 interrupt sources, four timer modules, two capture/compare/PWM modules with motor-control enhancements, an enhanced USART, and an MSSP port that supports SPI and I2C. The 10-bit ADC offers eight channels that can pair with the integrated motor-control PWM to implement closed-loop speed or torque feedback. Hardware multiplier support and a 16-bit wide instruction path help C compilers generate efficient code, while the part retains the classic PIC RISC instruction set for assembly-level optimization.
Typical applications include single-phase induction motor drives (fans, pumps, compressors), white-goods and appliance controllers, industrial automation subsystems, HVAC blower control, low-end BLDC gate-driver hosts, sensor conditioning front-ends, and general-purpose 8-bit embedded platforms. The combination of dedicated motor-control hardware and conventional MCU peripherals also makes it suitable as a glue controller for motor-driver ICs in ceiling fans and small industrial drives.
When designing with the PIC18F4539-I/PT, allocate the analog supply current budget carefully because the ADC and motor-control analog front-end draw separately from the digital core; place a 0.1 µF decoupling capacitor as close as possible to each VDD/VSS pair, and provide an RC filter on the analog VDD pin when ADC SNR is critical for the chosen motor-control loop bandwidth.
드롭인 대체품: PIC18F4539-I/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC18F4539-I/PT (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Core Architecture, Program Memory (Flash), Timers.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC18F4439-I/PT
✅ 드롭인✓ 재고 있음
$5.05 / 개
데이터시트 보기 →PIC18F4458-I/PT
✅ 드롭인✓ 재고 있음
$5.79 / 개
데이터시트 보기 →PIC18F4480-I/PT
✅ 드롭인✓ 재고 있음
$4.85 / 개
데이터시트 보기 →PIC18F44K22-I/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F452-I/PT
✅ 드롭인✓ 재고 있음
$5.84 / 개
데이터시트 보기 →PIC18F4525-I/PT
✅ 드롭인✓ 재고 있음
$4.18 / 개
데이터시트 보기 →PIC18F4539-I/PT 최대 정격 & 전기적 특성
| Core Architecture | PIC18F (8-bit RISC, Harvard) |
| Instruction Set Width | 16-bit |
| Maximum CPU Clock | 40 MHz |
| Program Memory (Flash) | 24 KB (12K x 16 words) |
| Data RAM | 1408 bytes |
| EEPROM | 256 bytes |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| Digital I/O Pins | 36 |
| ADC | 10-bit, 8 channels |
| PWM Modules | 2 (with motor-control enhancements) |
| Timers | 4 |
| Capture/Compare/PWM | 2 modules |
| Communication | Enhanced USART, MSSP (SPI/I2C) |
| 패키지 | 44-pin TQFP (10x10 mm) |
| 동작 온도 | -40C to +85C (Industrial, -I) |
| Special Features | Motor-control kernel, nanoWatt power management, ICD |
| RoHS 상태 | Compliant |
PIC18F4539-I/PT 핀 구성
| 핀 1 | RC0/T1OSO/T1CKI — PORTC bit 0, Timer1 oscillator output or clock input |
| 핀 2 | RC1/T1OSI/CCP2 — PORTC bit 1, Timer1 oscillator input or CCP2 output |
| 핀 3 | RC2/CCP1 — PORTC bit 2, CCP1 module output (PWM) |
| 핀 4 | RC3 — PORTC bit 3 |
| 핀 5 | RD0/PSP0 — PORTD bit 0, Parallel Slave Port bit 0 |
| 핀 6 | RD1/PSP1 — PORTD bit 1, Parallel Slave Port bit 1 |
| 핀 7 | RD2/PSP2 — PORTD bit 2, Parallel Slave Port bit 2 |
| 핀 8 | RD3/PSP3 — PORTD bit 3, Parallel Slave Port bit 3 |
| 핀 9 | RD4/PSP4 — PORTD bit 4, Parallel Slave Port bit 4 |
| 핀 10 | RD5/PSP5 — PORTD bit 5, Parallel Slave Port bit 5 |
| 핀 11 | RD6/PSP6 — PORTD bit 6, Parallel Slave Port bit 6 |
| 핀 12 | RD7/PSP7 — PORTD bit 7, Parallel Slave Port bit 7 |
| 핀 13 | VSS — Digital ground |
| 핀 14 | VDD — Digital supply voltage 4.2-5.5 V |
| 핀 15 | OSC2/CLKO — Crystal/Resonator output or clock output |
| 핀 16 | OSC1/CLKI — Crystal/Resonator input or clock input |
| 핀 17 | RA0/AN0 — PORTA bit 0, analog input AN0 |
| 핀 18 | RA1/AN1 — PORTA bit 1, analog input AN1 |
| 핀 19 | RA2/AN2/VREF- — PORTA bit 2, analog input AN2, ADC VREF- |
| 핀 20 | RA3/AN3/VREF+ — PORTA bit 3, analog input AN3, ADC VREF+ |
| 핀 21 | RA4/T0CKI — PORTA bit 4, Timer0 clock input |
| 핀 22 | RA5/AN4/SS — PORTA bit 5, analog input AN4, SSP slave select |
| 핀 23 | RE0/RD/AN5 — PORTE bit 0, RD control or AN5 |
| 핀 24 | RE1/WR/AN6 — PORTE bit 1, WR control or AN6 |
| 핀 25 | RE2/CS/AN7 — PORTE bit 2, CS control or AN7 |
| 핀 26 | VDD — Digital supply voltage |
| 핀 27 | VSS — Digital ground |
| 핀 28 | RG0 — PORTG bit 0 |
| 핀 29 | RG1 — PORTG bit 1 |
| 핀 30 | RG2 — PORTG bit 2 |
| 핀 31 | RG3 — PORTG bit 3 |
| 핀 32 | RG4 — PORTG bit 4 |
| 핀 33 | MCLR/VPP — Master clear reset input / programming voltage |
| 핀 34 | RB0/INT0 — PORTB bit 0, external interrupt 0 |
| 핀 35 | RB1/INT1 — PORTB bit 1, external interrupt 1 |
| 핀 36 | RB2/INT2 — PORTB bit 2, external interrupt 2 |
| 핀 37 | RB3/INT3 — PORTB bit 3, external interrupt 3 |
| 핀 38 | RB4/INT4 — PORTB bit 4, external interrupt 4 |
| 핀 39 | RB5/INT5 — PORTB bit 5, external interrupt 5 |
| 핀 40 | RB6/INT6 — PORTB bit 6, external interrupt 6 |
| 핀 41 | RB7/INT7 — PORTB bit 7, external interrupt 7 |
| 핀 42 | RC4 — PORTC bit 4 |
| 핀 43 | RC5 — PORTC bit 5 |
| 핀 44 | RC6 — PORTC bit 6 |
일반적인 애플리케이션
PIC18F4539-I/PT 적합 용도: 6 애플리케이션s: Single-Phase Induction Motor Control, HVAC Blower and Fan Speed Controllers, White Goods and Appliance Controllers, Industrial Automation Sensor Front-Ends, Pump and Compressor Variable-Speed Drives, General-Purpose 8-bit Embedded Control.
Single-Phase Induction Motor Control
The PIC18F4539-I/PT is purpose-built for variable-speed single-phase induction motor control in fans, pumps, and compressors. Its dedicated motor-control kernel and two motor-control PWM outputs at 40 MHz provide the deterministic switching needed for TRIAC or IGBT firing. The 8-channel 10-bit ADC paired with 1408 bytes RAM closes the speed/torque feedback loop with headroom for control algorithms beyond a basic V/f profile, while 24 KB flash absorbs both the motor-control firmware and a small user interface or wireless stack without resorting to external memory.
추천
HVAC Blower and Fan Speed Controllers
For HVAC blower and ceiling fan applications the PIC18F4539-I/PT delivers precise speed regulation with low acoustic noise. Operating from a 5 V rail across -40 to +85 C, the part rides through hot attic or motor-housing environments while its enhanced USART streams telemetry to a paired thermostat or building controller. The 256-byte EEPROM stores calibration data and last-set fan curves between power cycles, reducing the need for external non-volatile memory in the BOM.
추천
White Goods and Appliance Controllers
The PIC18F4539-I/PT fits white-goods controllers such as washing-machine drain pumps, dishwasher circulation pumps, and refrigerator evaporator fans. Its 36 digital I/O lines multiplex discrete inputs (door switches, pressure sensors), keypad inputs, relay drivers, and buzzer outputs through the PORTB-PORTE range. With 24 KB flash it accommodates the C-compiler-generated state machine plus Modbus or LIN-compatible communication handled by the MSSP SPI/I2C peripheral and USART.
추천
Industrial Automation Sensor Front-Ends
Industrial sensor front-ends benefit from the PIC18F4539-I/PT's combination of 8-channel 10-bit ADC and motor-control PWM modules for excitation and synchronous detection. The architecture supports bridge-style transducer readout, thermocouple cold-junction compensation using on-chip ADC channels, and 4-20 mA loop driving via PWM-filtered outputs. The industrial -40 to +85 C temperature range plus the in-circuit debugger interface simplifies field bring-up and avoids the cost of socketed emulation boards.
추천
Pump and Compressor Variable-Speed Drives
Pump and compressor variable-speed drives leverage the PIC18F4539-I/PT motor-control kernel to maintain pressure setpoints while reducing energy consumption by 30-50% versus fixed-speed operation. The PWM modules generate the anti-parallel SCR trigger pulses and run synchronous with zero-cross detection from on-chip comparators. Self-programming flash supports on-the-fly firmware updates for safety certification rollouts without disassembling the appliance housing, preserving IP68 or NEMA-4 sealed enclosures.
추천
General-Purpose 8-bit Embedded Control
Beyond motor control, the PIC18F4539-I/PT serves as a versatile general-purpose 8-bit MCU for consumer and IoT edge devices where cost trumps raw compute. Its 24 KB flash, 1408 B RAM, and 256 B EEPROM outpace the PIC16F baseline while keeping within an 8-bit tool-chain. The MSSP supports both I2C sensors and SPI peripherals such as EEPROMs or displays, and the nanoWatt power-management modes make the part attractive for battery-backed remote controls and low-duty-cycle sensor nodes.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC18F4539-I/PT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC18F4439-I/PT | PIC18F4458-I/PT | PIC18F4480-I/PT | PIC18F44K22-I/PT | PIC18F452-I/PT | PIC18F4525-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Program Memory (Flash) | 24 KB | 16 KB | 24 KB | 16 KB | 16 KB | 32 KB | 48 KB |
| RAM | 1408 bytes | 768 bytes | 2048 bytes | 768 bytes | 768 bytes | 1536 bytes | 3936 bytes |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 1024 bytes |
| Maximum Clock | 40 MHz | 40 MHz | 48 MHz | 40 MHz | 64 MHz | 40 MHz | 40 MHz |
| Motor Control Kernel | Yes | Yes | Yes (USB variant) | Yes (CAN variant) | Yes (K-series enhanced) | No | No |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
주요 차별점
- Dedicated motor-control kernel versus general-purpose PIC18F45xx parts (vs PIC18F452-I/PT)
- Larger program memory headroom for motor-control plus comms firmware (vs PIC18F4439-I/PT)
- Matches TQFP-44 footprint across the PIC18F family (vs PIC18F27K42-I/ML)
설계 노트
Estimated power: at 40 MHz, 5 V, the PIC18F4539-I/PT typically draws approximately 25 mA active current; at 4 MHz the active current drops to roughly 5 mA. Designers targeting low standby consumption should exploit nanoWatt modes (Sleep current is approximately 0.1 microamp per datasheet typical) and gate the motor-control PWM outputs before issuing the Sleep instruction.
Place 0.1 microfarad ceramic bypass capacitors as close as possible to each VDD pin (pins 14 and 26) and the corresponding VSS pins (13 and 27), with a bulk 10 microfarad tantalum or aluminum-polymer cap on the same 5 V rail. According to Microchip hardware design checklists, poor decoupling directly causes ADC noise and PWM jitter on this motor-control silicon, so use a 4-layer PCB with a dedicated ground plane when targeting full 40 MHz throughput.
Route the analog VDD/AVDD pin (29 of the die, multiplexed on the TQFP) to a separate analog supply via an RC filter (typically 10 ohm and 10 microfarad), and keep analog signal traces short and away from PWM switching traces. The motor-control kernel expects analog feedback within the same ground reference; split-plane routing that separates analog and digital grounds can introduce 2-3 LSB of ADC error at high PWM slew rates.
The ICD pins RB6 and RB7 are multiplexed with in-circuit programming, so any external circuitry driving RB6/RB7 high during reset can prevent entry into programming mode. Series resistors below 10 kilohm or active drivers on these pins must be avoided; otherwise, firmware updates in the field will require board-level isolation to recover debug access. Refer to Microchip development tool documentation for the recommended ICSP connector topology.
규정 준수 정보
RoHS compliance status from Microchip product page and active lifecycle status per Digchip datasheet as of 2026-09-27; halogen-free status not explicitly confirmed in provided data.