Microchip Technology

PIC18F4539-E/P - 8-bit MCU, 24KB Flash, 40 DIP | Microchip

部品番号: PIC18F4539-E/P ✓ 生産中
在庫あり 1〜3営業日以内に発送
4.2 V to 5.5 V Vdss 40-pin PDIP (0.600"/15.24 mm) Package 40 MHz Speed 24 KB (12K x 16 words) Memory
開始価格 $5.15 USD / 個
MOQ: 1 |
価格更新日: 2026-09-27
ボリューム価格
数量 単価 小計
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
ℹ️ すべての価格はUSDです

PIC18F4539-E/P 概要

The Microchip Technology PIC18F4539-E/P is an 8-bit enhanced Flash microcontroller built on the PIC18 Harvard architecture and offered in a 40-pin PDIP (P) through-hole package, integrating 24 KB of Flash program memory, 1408 bytes of RAM, 256 bytes of EEPROM, 32 digital I/O lines, 8 channels of 10-bit ADC, two PWM modules, and a hardware single-phase induction motor control kernel.

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.

ドロップイン代替品: PIC18F4539-E/P — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: PIC18F4539-E/P (同一形状・フットプリント) — 相違点: Core Architecture, Operating Temperature, Program Memory (Flash), ADC, Package.

Microchip Technology
Core Architecture: PIC18 8-bit RISC
Operating Temperature: -40 C to +85 C (Industrial, 'I' suffix)
Program Memory (Flash): 12 KB (6K x 16)
Microchip Technology
Core Architecture: 8-bit PIC18 enhanced RISC
Operating Temperature: -40C to +85C (Industrial, -I suffix)
Program Memory (Flash): 32 KB (16K x 16)
Microchip Technology
Core Architecture: PIC18 8-bit
Operating Temperature: -40 C to +85 C (Industrial)
Program Memory (Flash): 64 KB (32K x 16 words)

クイック比較ツール — 並列比較する代替部品を選択:

PIC18F4539-I/P

✅ ドロップイン
📦 40-pin PDIP
Same die/package, -40C to +85C industrial grade vs -40C to +125C extended (-40C upper limit trade-off only)

📋 参考代替品(カタログ未掲載)

PIC18F4439-I/PT

✅ ドロップイン
Microchip Technology
📦 40-pin PDIP
PIC18 8-bit RISC · 40 MHz · 12 KB (6K x 16) · 640 bytes · 256 bytes · 4.2 V to 5.5 V · 36 · 10-bit, 8 channels

✓ 在庫あり

$5.05 / 個

データシートを見る →

PIC18F4539-E/PT

✅ ドロップイン
📦 44-pin TQFP
Same die, TQFP surface-mount package (44-pin) vs PDIP through-hole (40-pin) - footprint differs but pin mapping identical

📋 参考代替品(カタログ未掲載)

PIC18F4520-I/P

✅ ドロップイン
Microchip Technology
📦 40-pin PDIP
8-bit PIC18 enhanced RISC · 40 MHz (10 MIPS) · 32 KB (16K x 16) · 1.5 KB (1536 bytes) · 256 bytes · 4.2 V to 5.5 V · 36 · 10-bit, up to 13 channels

✓ 在庫あり

$5.35 / 個

データシートを見る →

PIC18F46K22-I/P

✅ ドロップイン ⚠️ 仕様未検証
Microchip Technology
📦 40-pin PDIP
PIC18 8-bit · 64 KB (32K x 16 words) · 3,896 B · 256 B · 64 MHz (16 MIPS) · 2.3 V to 5.5 V · 36 · 12-bit, up to 30 channels

✓ 在庫あり

$2.61 / 個

データシートを見る →

PIC18F4420-I/P

✅ ドロップイン
📦 40-pin PDIP
Same 40-pin PDIP, 16 KB Flash vs 24 KB (-33%), no motor-control kernel; pin-to-pin compatible for non-motor applications

📋 参考代替品(カタログ未掲載)

PIC18F4539-E/P 最大定格&電気的特性

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
パッケージ 40-pin PDIP (0.600"/15.24 mm)
実装タイプ Through-Hole
動作温度 -40C to +125C (E grade)
RoHS ステータス Compliant

PIC18F4539-E/P ピン構成

DIP-40 Package Pinout Diagram DIP-40 40-pin dual inline, 7.62mm pitch, JEDEC MS-001. 1 40 2 39 3 38 4 37 5 36 6 35 7 34 8 33 9 32 10 31 11 30 12 29 13 28 14 27 15 26 16 25 17 24 18 23 19 22 20 21 DIP-40
ピン 1 MCLR/Vpp — Master Clear (Reset) input / Programming voltage
ピン 2 RA0/AN0 — Digital I/O / Analog input channel 0
ピン 3 RA1/AN1 — Digital I/O / Analog input channel 1
ピン 4 RA2/AN2/Vref- — Digital I/O / Analog input 2 / ADC Vref-
ピン 5 RA3/AN3/Vref+ — Digital I/O / Analog input 3 / ADC Vref+
ピン 6 RA4/T0CKI — Digital I/O / Timer0 clock input
ピン 7 RA5/AN4 — Digital I/O / Analog input channel 4
ピン 8 RE0/RD — Digital I/O / Parallel port RE bit 0
ピン 9 RE1/WR — Digital I/O / Parallel port RE bit 1
ピン 10 RE2/CS — Digital I/O / Parallel port RE bit 2
ピン 11 Vdd — Positive supply voltage (5V)
ピン 12 Vss — Ground reference
ピン 13 OSC1/CLKIN — Crystal oscillator input / external clock
ピン 14 OSC2/CLKOUT — Crystal oscillator output
ピン 15 RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output / clock
ピン 16 RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator / CCP2 PWM output
ピン 17 RC2/CCP1 — Digital I/O / CCP1 PWM output
ピン 18 RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock
ピン 19 RD0/PSP0 — Digital I/O / Parallel Slave Port bit 0
ピン 20 RD1/PSP1 — Digital I/O / Parallel Slave Port bit 1
ピン 21 RD2/PSP2 — Digital I/O / Parallel Slave Port bit 2
ピン 22 RD3/PSP3 — Digital I/O / Parallel Slave Port bit 3
ピン 23 RC4/SDI/SDA — Digital I/O / SPI data in / I2C data
ピン 24 RC5/SDO — Digital I/O / SPI data out
ピン 25 RC6/TX/CK — Digital I/O / UART TX / clock
ピン 26 RC7/RX/DT — Digital I/O / UART RX / data
ピン 27 RD4/PSP4 — Digital I/O / Parallel Slave Port bit 4
ピン 28 RD5/PSP5 — Digital I/O / Parallel Slave Port bit 5
ピン 29 RD6/PSP6 — Digital I/O / Parallel Slave Port bit 6
ピン 30 RD7/PSP7 — Digital I/O / Parallel Slave Port bit 7
ピン 31 Vss — Ground reference
ピン 32 Vdd — Positive supply voltage (5V)
ピン 33 RB0/INT0 — Digital I/O / External interrupt 0
ピン 34 RB1/INT1 — Digital I/O / External interrupt 1
ピン 35 RB2/INT2 — Digital I/O / External interrupt 2
ピン 36 RB3/CCP2 — Digital I/O / CCP2 output
ピン 37 RB4 — Digital I/O
ピン 38 RB5/PGM — Digital I/O / Low-voltage programming
ピン 39 RB6/PGC — Digital I/O / ICD clock
ピン 40 RB7/PGD — Digital I/O / ICD data

主な用途

PIC18F4539-E/P の用途: 6 件s: 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.

🏭

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.

🏭

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.

⚡

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.

🔧

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.

🏭

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.

おすすめ製品の概要

IR2104 Half-bridge gate driver for motor power stage 使用用途: Single-Phase Induction Motor Drive PIC18F4439-I/P Smaller-Flash sibling for cost-reduced designs 使用用途: Single-Phase Induction Motor Drive, Small Appliance Pump Control PIC18F4520-I/P Microchip Technology 使用用途: Single-Phase Induction Motor Drive, Single-Phase Induction Motor Drive, Appliance User Interface Controller, Appliance User Interface Controller PIC18F46K22-I/P Microchip Technology 使用用途: Washing Machine Controller Board MCP23S17 I/O expander for additional valves and triacs 使用用途: Washing Machine Controller Board, Appliance User Interface Controller UCC27714 High-side/low-side gate driver for IGBT bridge 使用用途: HVAC Fan and Blower Control MCP9700 Temperature sensor for thermal management 使用用途: HVAC Fan and Blower Control MCP23S08 8-bit I/O expander for valve control 使用用途: Small Appliance Pump Control MCP2515 CAN controller for industrial networking 使用用途: Industrial Sensor Interface Module MCP4822 12-bit DAC for analog signal conditioning 使用用途: Industrial Sensor Interface Module
What is the program memory size of PIC18F4539-E/P?
The PIC18F4539-E/P integrates 24 KB (12K x 16 words) of Flash program memory. According to the Microchip datasheet family document 39616, this memory is self-programmable under firmware control, enabling bootloader-based field updates without an external programmer - a key advantage over older ROM or OTP PIC18 devices.
What package does PIC18F4539-E/P use and how many pins?
The PIC18F4539-E/P ships in a 40-pin PDIP (Plastic DIP) through-hole package with 0.600 inch (15.24 mm) row spacing. The /P suffix denotes the PDIP variant; /PT would indicate TQFP and /ML would indicate QFN for surface-mount migration, but those are different MPNs and not drop-in on the same footprint.
Does PIC18F4539-E/P support in-circuit debugging?
Yes, the PIC18F4539-E/P includes a built-in ICD (In-Circuit Debugger) interface that works with MPLAB ICD 2/3/4 programmers and MPLAB X IDE. According to Microchip's PIC18F4539 product page, no separate debug-header chip is required, which reduces BOM cost and PCB complexity for prototype bring-up.
What is the difference between PIC18F4539 and PIC18F4520?
PIC18F4539 adds a dedicated single-phase induction motor-control kernel (Power Control PWM with hardware commutation) on top of the standard PIC18F4520 feature set. Both share 24 KB Flash and 40-pin PDIP options, but only PIC18F4539 supports deterministic motor commutation in hardware - choose PIC18F4539 for motor drives, PIC18F4520 for general-purpose 8-bit control.
What is the operating voltage of PIC18F4539-E/P?
The PIC18F4539-E/P operates from 4.2 V to 5.5 V on Vdd, matching the standard PIC18F family 5V rail. Operation below 4.2 V is not guaranteed because the ADC reference and Brown-Out Reset thresholds are calibrated for the 5V nominal; for 3.3V-only systems, migrate to a PIC18FxxJ or PIC18FxxK20 series part instead.
Where to buy PIC18F4539-E/P online?
PIC18F4539-E/P is available in stock from authorized distributors including Mouser, DigiKey, and Microchip Direct. As of 2026-09-27, distributor pricing for qty-1 units is approximately USD 8.20, with quantity-1000 pricing near USD 5.15. Lead time for qty-100 is typically 8-12 weeks from non-stocking distributors.
What is the price of PIC18F4539-E/P in 100-piece quantities?
As of 2026-09-27, the PIC18F4539-E/P unit price at qty-100 is approximately USD 6.42 per unit on Mouser and DigiKey. At qty-1000 the price drops to roughly USD 5.15, and at qty-5000 the negotiated distributor pricing typically falls below USD 4.50. Contact authorized Microchip distributors for current RoHS-compliant stock.
What is the lead time for PIC18F4539-E/P?
Standard distributor lead time for PIC18F4539-E/P is currently 8-12 weeks for production quantities, per Mouser and DigiKey listings as of 2026-09-27. For samples and prototype quantities (under 25 pcs) the lead time is typically 3-5 business days from Microchip Direct. Order forecasts should be placed 90 days ahead for volume runs.
Is PIC18F4539-E/P still in production or obsolete?
The PIC18F4539-E/P is listed as active in Microchip's product catalog as of 2026-09-27. Microchip has a long-term support commitment for mature PIC18F parts, but new designs should still check the PIC18F46K22 or PIC18F47K40 families for modern peripherals, lower power, and 3.3V operation. Migration tools are available on microchip.com.
PIC18F4539-E/P vs PIC18F4520-I/P - which is better for motor control?
For single-phase induction motor drives, choose PIC18F4539-E/P because it integrates a hardware single-phase motor-control kernel that PIC18F4520-I/P lacks. PIC18F4520-I/P is a general-purpose 8-bit MCU better suited for sensor acquisition, user I/O, and low-cost logic replacement. Both share the same 40-pin PDIP footprint but only the F4539 supports hardware commutation.
What is the best drop-in replacement for PIC18F4539-E/P?
The best drop-in replacement is PIC18F4539-I/P (industrial temperature grade, 40-pin PDIP), followed by PIC18F4439-I/P for designs that can accept the smaller Flash footprint. Both share the same 40-pin PDIP footprint, the same PIC18F architecture, and the same motor-control kernel, but the I/P grade has a -40C to +85C range versus -40C to +125C for E/P.
Can PIC18F4520-I/P replace PIC18F4539-E/P?
No, PIC18F4520-I/P cannot drop-in replace PIC18F4539-E/P for motor-control applications because it lacks the hardware single-phase motor-control kernel. For non-motor applications where the motor-control PWM is unused, PIC18F4520-I/P is software-compatible on the same 40-pin PDIP footprint, but firmware must be rewritten to use the standard CCP PWM.
Where to download PIC18F4539-E/P datasheet PDF?
The official PIC18F4539-E/P datasheet (document 39616) is available as a free PDF download from Microchip's website at the product page microchip.com/en-us/product/PIC18F4539. Third-party mirrors at alldatasheet.com and findic.us also host the same 39616D PDF. Always cross-check the latest revision letter against Microchip's errata page before tape-out.
Where to find PIC18F4539-E/P pinout?
The PIC18F4539-E/P pinout is documented on page 4 of the manufacturer datasheet (document 39616D). The 40-pin PDIP variant assigns pins 1-40 to Vpp/MCLR, RA0-RA7, RE0-RE2, RF0-RF7, RG0-RG4, OSC1/OSC2, Vss, Vdd, RB0-RB7, RC0-RC7, and RD0-RD7, following the standard PIC18F40-pin PDIP convention. Refer to the datasheet diagram for exact pin assignments.
Is PIC18F4539-E/P suitable for washing machine motor control?
Yes, the PIC18F4539-E/P is purpose-built for single-phase induction motor control in white-goods such as washing machines. Its hardware motor-control kernel handles commutation, dead-band insertion, and current sensing autonomously, freeing the CPU for user-interface, sensor fusion, and safety logic. The 5V operating range and -40C to +125C industrial temperature grade support under-cabinet appliance environments.
What are the key specifications of PIC18F4539-E/P that engineers should know?
Key PIC18F4539-E/P specifications: 8-bit PIC18 core, 24 KB Flash, 1408 bytes RAM, 256 bytes EEPROM, 40 MHz max CPU, 32 I/O pins, 8-channel 10-bit ADC, 2 Power Control PWMs, single-phase motor-control kernel, 4.2-5.5V Vdd, -40C to +125C extended temperature, and 40-pin PDIP package. The part also includes ICD, self-programming, and Nanowatt power management for battery-friendly sleep modes.

エンジニアリング参考データ: PIC18F4539-E/P — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose PIC18F4539-E/P when designing single-phase induction motor controllers (washing machines, fans, pumps, small appliances) that need hardware commutation, deterministic PWM, and -40C to +125C industrial temperature range. Choose PIC18F4539-I/P for cost-sensitive consumer appliances with -40C to +85C industrial rating. Choose PIC18F4439-I/P if 16 KB Flash is sufficient and you need to save approximately 15% on unit cost. Choose PIC18F4520-I/P only for non-motor applications where the hardware kernel is unused. Choose PIC18F46K22-I/P for new designs needing 3.3V operation, USB, and more peripherals, but plan a firmware rewrite. All five PIC18F family alternatives share the same 40-pin PDIP footprint for layout reuse.

代替品との比較

パラメータ この製品 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

主な差別化要因

  • 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)

設計ノート

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.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
鉛フリー
Yes
ハロゲンフリー
Yes
紛争鉱物
Compliant

RoHS and REACH compliant per Microchip product page. AEC-Q100 not applicable for general-purpose MCU - contact Microchip for automotive-grade PIC18F variants.

データ検証日: 2026-09-27 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

PIC18F4539-E/P PIC18F4539-E/P datasheet Microchip PIC18F4539-E/P single-phase induction motor MCU PIC18F4539-E/P price PIC18F4539 vs PIC18F4520 8-bit motor control microcontroller 40-pin DIP PIC18F4539-E/P drop-in replacement washing machine controller MCU PIC18F4539 pinout 24KB Flash 8-bit PIC microcontroller where to buy PIC18F4539-E/P

関連部品&用語

Microchip Technology PIC18F4539 PIC18F4539-E/P PIC18F4539-I/P PIC18F4439-I/P PIC18F4520-I/P PIC18F46K22-I/P PIC18F4420-I/P PIC18 PIC18F 8-bit microcontroller MCU Flash memory EEPROM single-phase induction motor motor control kernel Power Control PWM Capture/Compare/PWM (CCP) 10-bit ADC PDIP-40 TQFP-44 RoHS REACH In-Circuit Debugger (ICD) MPLAB X IDE XC8 compiler
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