PIC18F4539-E/P - 8-bit MCU, 24KB Flash, 40 DIP | Microchip
N.º da peça: PIC18F4539-E/P ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $8.2 | $8,20 |
| 10 | $7.36 | $73,60 |
| 100 | $6.42 | $642,00 |
| 500 | $5.78 | $2.890,00 |
| 1.000 | $5.15 | $5.150,00 |
PIC18F4539-E/P Visão geral
An 8-bit PIC microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile Flash program memory, volatile RAM, EEPROM data memory, and a rich set of on-chip peripherals (ADC, PWM, timers, communication ports, motor-control PWMs). PIC18F-series devices extend the base PIC16 core with linear program memory, 16-bit instructions, and C-friendly development tools, sitting between entry-level 8-bit PIC MCUs and 16-bit dsPIC/PIC24 parts in Microchip's product hierarchy: PIC10/12/16/18 -> 8-bit MCU -> microcontroller -> embedded control IC -> semiconductor.
Key features of the PIC18F4539-E/P include 24 KB (12K x 16) of self-programmable Flash, 256 bytes of EEPROM for non-volatile data, 1408 bytes of SRAM, an internal oscillator with PLL capable of up to 40 MHz operation, an ICD (In-Circuit Debugger) interface, self-programming support, two Capture/Compare/PWM modules optimized for power and motor control, and Nanowatt power management for sleep/Idle modes that extend battery life in standby.
Architecturally, the PIC18F4539 adds a dedicated single-phase induction motor control kernel on top of the standard PIC18F CPU, a feature that distinguishes it from generic PIC18F parts such as PIC18F4520. The on-chip motor-control kernel (Power Control PWM with dedicated time base, duty-cycle register, and dead-band control) reduces CPU overhead and CPU/MCU interrupt latency, allowing deterministic commutation and torque control for single-phase AC induction motors in white-goods and small-appliance designs.
Typical applications include single-phase induction motor control (washing machines, fans, pumps, compressors), general-purpose 8-bit embedded control with ADC-driven sensor acquisition, low-cost HVAC appliance boards, and legacy industrial control replacements. The wide 5V operating range and mature PIC18 toolchain (MPLAB X, XC8, ICD headers) make it a drop-in choice for designs migrated from PIC16 to PIC18.
When designing, choose the 'E' (Extended) temperature grade for industrial -40C to +125C operation, and pair with a 20 MHz external crystal or rely on the internal 8 MHz oscillator (with PLL). Power Control PWM outputs must use the dedicated module, not the standard CCP, to access the motor-control kernel features.
This page synthesizes the manufacturer datasheet, current distributor pricing, structured drop-in alternatives from the same PIC18F family, and practical design notes not collected in any single vendor listing.
Alternativas drop-in para PIC18F4539-E/P — 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 PIC18F4539-E/P (mesmo formato e footprint) — diferindo em Core Architecture, Operating Temperature, Program Memory (Flash), ADC, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F4539-I/P
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F4439-I/PT
✅ Drop-In✓ Em estoque
$5.05 / unidade
Ver ficha técnica →PIC18F4539-E/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F4520-I/P
✅ Drop-In✓ Em estoque
$5.35 / unidade
Ver ficha técnica →PIC18F46K22-I/P
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$2.61 / unidade
Ver ficha técnica →PIC18F4420-I/P
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F4539-E/P Classificações máximas e características elétricas
| Core Architecture | PIC18 (8-bit Harvard) |
| Program Memory (Flash) | 24 KB (12K x 16 words) |
| RAM | 1408 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 40 MHz |
| Operating Voltage (Vdd) | 4.2 V to 5.5 V |
| I/O Pins | 32 |
| ADC | 10-bit, 8 channels |
| PWM (Power Control) | 2 channels (motor-control kernel) |
| Motor Control Kernel | Single-phase induction motor (dedicated) |
| Self-Programming | Yes |
| In-Circuit Debug (ICD) | Yes |
| Encapsulamento | 40-pin PDIP (0.600"/15.24 mm) |
| Tipo de montagem | Through-Hole |
| Temperatura de operação | -40C to +125C (E grade) |
| Status RoHS | Compliant |
Configuração de pinos do PIC18F4539-E/P
| Pino 1 | MCLR/Vpp — Master Clear (Reset) input / Programming voltage |
| Pino 2 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Pino 3 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Pino 4 | RA2/AN2/Vref- — Digital I/O / Analog input 2 / ADC Vref- |
| Pino 5 | RA3/AN3/Vref+ — Digital I/O / Analog input 3 / ADC Vref+ |
| Pino 6 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| Pino 7 | RA5/AN4 — Digital I/O / Analog input channel 4 |
| Pino 8 | RE0/RD — Digital I/O / Parallel port RE bit 0 |
| Pino 9 | RE1/WR — Digital I/O / Parallel port RE bit 1 |
| Pino 10 | RE2/CS — Digital I/O / Parallel port RE bit 2 |
| Pino 11 | Vdd — Positive supply voltage (5V) |
| Pino 12 | Vss — Ground reference |
| Pino 13 | OSC1/CLKIN — Crystal oscillator input / external clock |
| Pino 14 | OSC2/CLKOUT — Crystal oscillator output |
| Pino 15 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output / clock |
| Pino 16 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator / CCP2 PWM output |
| Pino 17 | RC2/CCP1 — Digital I/O / CCP1 PWM output |
| Pino 18 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| Pino 19 | RD0/PSP0 — Digital I/O / Parallel Slave Port bit 0 |
| Pino 20 | RD1/PSP1 — Digital I/O / Parallel Slave Port bit 1 |
| Pino 21 | RD2/PSP2 — Digital I/O / Parallel Slave Port bit 2 |
| Pino 22 | RD3/PSP3 — Digital I/O / Parallel Slave Port bit 3 |
| Pino 23 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| Pino 24 | RC5/SDO — Digital I/O / SPI data out |
| Pino 25 | RC6/TX/CK — Digital I/O / UART TX / clock |
| Pino 26 | RC7/RX/DT — Digital I/O / UART RX / data |
| Pino 27 | RD4/PSP4 — Digital I/O / Parallel Slave Port bit 4 |
| Pino 28 | RD5/PSP5 — Digital I/O / Parallel Slave Port bit 5 |
| Pino 29 | RD6/PSP6 — Digital I/O / Parallel Slave Port bit 6 |
| Pino 30 | RD7/PSP7 — Digital I/O / Parallel Slave Port bit 7 |
| Pino 31 | Vss — Ground reference |
| Pino 32 | Vdd — Positive supply voltage (5V) |
| Pino 33 | RB0/INT0 — Digital I/O / External interrupt 0 |
| Pino 34 | RB1/INT1 — Digital I/O / External interrupt 1 |
| Pino 35 | RB2/INT2 — Digital I/O / External interrupt 2 |
| Pino 36 | RB3/CCP2 — Digital I/O / CCP2 output |
| Pino 37 | RB4 — Digital I/O |
| Pino 38 | RB5/PGM — Digital I/O / Low-voltage programming |
| Pino 39 | RB6/PGC — Digital I/O / ICD clock |
| Pino 40 | RB7/PGD — Digital I/O / ICD data |
Aplicações típicas
PIC18F4539-E/P é adequado para 6 aplicaçãos: Single-Phase Induction Motor Drive, Washing Machine Controller Board, HVAC Fan and Blower Control, Small Appliance Pump Control, Industrial Sensor Interface Module, Appliance User Interface Controller.
Single-Phase Induction Motor Drive
The PIC18F4539-E/P is purpose-built for single-phase induction motor control in white-goods and small appliances, leveraging its hardware motor-control kernel to offload commutation, dead-band insertion, and current sensing from the CPU. With 24 KB Flash, 8-channel 10-bit ADC for back-EMF and current feedback, and 2 Power Control PWM outputs, it provides deterministic torque and speed control for washing machines, dryer drums, fans, and pumps. The dedicated kernel reduces CPU interrupt latency to under 1 instruction cycle per commutation event, enabling smoother torque ripple and lower acoustic noise than software-driven PIC18F4520 designs. Operating at 5V from a rectified mains supply and rated -40C to +125C, it tolerates the under-cabinet thermal environment typical of appliances. Pair with an external gate driver (e.g., IR2104 or UCC27714) and TRIAC/IGBT half-bridge for the power stage.
Recomendado
Washing Machine Controller Board
In washing machine controllers, the PIC18F4539-E/P replaces legacy PIC16 designs and consolidates motor control, water-level sensing, user-interface scanning, and safety interlocks onto a single MCU. Its 32 digital I/O lines directly drive 7-segment displays, keypad matrices, triac outputs for water valves, and door-lock solenoids without external muxing. The 8-channel 10-bit ADC simultaneously monitors water level, temperature (NTC), motor current (via shunt), and drum speed (Hall sensor), with the motor-control kernel handling the drain-pump and agitation-motor PWM. Self-programming Flash supports in-field firmware updates for new wash cycles. The extended -40C to +125C temperature grade handles the under-cabinet thermal load while the 5V rail simplifies the power supply.
Recomendado
HVAC Fan and Blower Control
HVAC indoor-unit blower motors require variable-speed single-phase induction control with smooth ramp-up, torque ripple management, and acoustic noise suppression. The PIC18F4539-E/P's hardware motor-control kernel enables 16 kHz PWM with hardware dead-band insertion, eliminating shoot-through in the half-bridge and reducing EMI below CISPR 11 limits. The 10-bit ADC samples back-EMF for sensorless commutation, removing the Hall-sensor BOM cost, while the 24 KB Flash accommodates lookup-table-based sinusoidal commutation profiles. The 5V Vdd simplifies the bootstrap supply design for the gate driver, and the industrial temperature grade supports attic and outdoor unit installations.
Recomendado
Small Appliance Pump Control
Small appliance pumps - dishwasher drain pumps, refrigerator water pumps, and espresso-machine water pumps - benefit from the PIC18F4539-E/P's hardware motor-control kernel for soft-start and dry-run protection. The dedicated Power Control PWM module generates zero-crossing commutation events independent of CPU load, ensuring pump speed stays within 2% of setpoint even when the MCU is servicing the user-interface interrupt. The 1408-byte RAM handles a small state machine without external memory, while 256-byte EEPROM stores calibration constants across power cycles. Sensorless back-EMF zero-cross detection through the 10-bit ADC eliminates the need for a separate pump-speed sensor.
Recomendado
Industrial Sensor Interface Module
Although optimized for motor control, the PIC18F4539-E/P is also deployed as a general-purpose sensor-interface module in legacy industrial systems because of its robust 5V I/O, 8-channel 10-bit ADC, and PIC18F instruction set familiar to industrial firmware engineers. It can multiplex up to 32 digital sensors through its I/O ports and sample 8 analog sensors simultaneously, then communicate via UART/SPI to a host PLC or industrial gateway. The ICD interface simplifies field diagnostics without removing the MCU from the board, and the self-programming Flash allows remote firmware patches via Modbus or CANopen firmware-update procedures. The -40C to +125C extended temperature rating supports unheated control cabinets.
Recomendado
Appliance User Interface Controller
The PIC18F4539-E/P serves as a UI controller in microwave ovens, induction cooktops, and oven-range boards where it scans touch pads, drives 7-segment or dot-matrix displays, and orchestrates communication with a master motor-control MCU via SPI or UART. Its 32 I/O lines drive 4x4 keypads directly with no external decoder, while the 10-bit ADC reads rotary encoder positions and thermistor inputs for temperature control loops. The 24 KB Flash accommodates UI look-up tables, multi-language string sets, and capacitive-touch firmware, while EEPROM stores user preferences and clock settings across power cycles. MPLAB X development tooling accelerates firmware iteration.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18F4539-E/P — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F4539-I/P | PIC18F4439-I/P | PIC18F4539-E/PT | PIC18F4520-I/P | PIC18F46K22-I/P |
|---|---|---|---|---|---|---|
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 44-pin TQFP | 40-pin PDIP - same | 40-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 24 KB | 24 KB | 16 KB | 24 KB | 24 KB | 64 KB |
| RAM | 1408 bytes | 1408 bytes | 1408 bytes | 1408 bytes | 1536 bytes | 3896 bytes |
| Motor-Control Kernel | Yes (single-phase) | Yes (single-phase) | Yes (single-phase) | Yes (single-phase) | No | No (general-purpose) |
| Operating Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 2.3 V to 5.5 V | |
| Max CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 64 MHz | |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | |
| I/O Pins | 32 | 32 | 32 | 36 | 36 |
Principais diferenciais
- Integrated single-phase induction motor-control kernel (vs PIC18F4520-I/P)
- Extended temperature grade for appliance environments (vs PIC18F4539-I/P)
- On-chip ICD eliminates external debug header (vs PIC18F4420-I/P)
Notas de projeto
PIC18F4539-E/P operates from a single 4.2 V to 5.5 V rail. Place a 100 nF decoupling capacitor within 5 mm of each Vdd pin (pins 11 and 32) and a bulk 10 uF tantalum or ceramic capacitor near the IC. For ICD programming, ensure the MCLR pull-up (typically 10 kOhm) does not exceed 4.7 kOhm in noisy environments, and add a 100 nF cap from MCLR to Vss to filter spurious resets during motor commutation events.
Estimated: At 40 MHz CPU clock with all peripherals active, the PIC18F4539-E/P draws approximately 25 mA from Vdd, dissipating about 125 mW. The 40-pin PDIP package has a theta_JA of approximately 50 C/W in still air, yielding a junction temperature rise of about 6.25 C above ambient. No external heatsink is required, but ensure copper pour of at least 0.5 square inch on Vss/GND plane for heat spreading.
Route the crystal oscillator traces (OSC1, OSC2) as short as possible and keep them away from PWM outputs and motor drive traces to avoid coupling noise into the clock. Use a ground guard ring around the crystal and load capacitors. For TQFP variants, fan out the pins with 45-degree traces under the package to avoid acid traps during PCB fab.
Do not confuse PIC18F4539 with PIC18F4520 - the F4539 has the hardware single-phase motor-control kernel and dedicated Power Control PWM, while the F4520 does not. Firmware written for the F4520 CCP PWM will not exercise the F4539 motor-control kernel. When migrating from F4520 to F4539 for motor applications, redesign the PWM init code per datasheet section on Power Control PWM module.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. AEC-Q100 not applicable for general-purpose MCU - contact Microchip for automotive-grade PIC18F variants.
