Microchip Technology

PIC18F4439-E/P - 8-Bit 40MHz MCU 12KB Flash 40-DIP | Microchip

部品番号: PIC18F4439-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 PDIP-40 (DIP-40, 0.600 inch) Package 40 MHz Speed 12 KB (6K x 16) Memory
開始価格 $4.85 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 $8.1 $8.10
10 $7.25 $72.50
100 $6.05 $605.00
500 $5.4 $2,700.00
1,000 $4.85 $4,850.00
ℹ️ すべての価格はUSDです

PIC18F4439-E/P 概要

The Microchip Technology PIC18F4439-E/P is an 8-bit PIC18-family microcontroller with 12KB of Flash program memory, 40 MHz maximum clock speed, and a 40-pin PDIP (DIP-40) through-hole package. It integrates a 10-bit A/D converter, nanoWatt Technology power management, and a sophisticated motor-control kernel targeted at single-phase induction motor control applications. The device operates from 4.2V to 5.5V and exposes 36 I/O ports.

An 8-bit microcontroller (MCU) is a self-contained computing element that integrates a CPU core, program memory, RAM, non-volatile data storage, and a range of peripherals on a single silicon die. Within the broader semiconductor taxonomy it sits at: MCU -> microcontroller -> embedded processor -> semiconductor device. The PIC18 family from Microchip Technology uses an enhanced Harvard RISC architecture with 16-bit wide instructions and a 8-bit data path, which simplifies compiler code generation while delivering deterministic interrupt response.

Key features include 12KB Flash program memory organized as 6K x 16 words, the motor-control PWM module with dedicated motion-feedback interfaces, four 16-bit timer/counters, two analog comparators, and the nanoWatt Technology power-managed sleep modes that allow the device to wake on interrupt while drawing microamp-level standby current. The 'E' suffix denotes the extended industrial temperature grade (-40C to +125C), distinguishing it from the 'I' (-40C to +85C) variant.

The PIC18F4439 architectural advantage is its integrated single-phase motor-control kernel (with Power Control PWM and Motion Feedback Module), which removes the need for an external DSP or dedicated motor-controller IC in fan, pump, and small compressor drive designs. Combined with 10-bit ADC, 36 I/O, and nanoWatt Technology, it gives designers a one-chip analog/digital/motion platform.

Typical applications include single-phase induction motor control (fans, pumps, compressors), white goods (washing machines, dishwashers, refrigerators), HVAC blowers, small industrial drives, and general-purpose 5V embedded control with motor actuation. The extended -40C to +125C temperature range and through-hole PDIP package make it especially suited to hobbyist, prototyping, and rugged industrial enclosures.

When designing with this part, verify that the 4.2V to 5.5V supply range matches your system rail; if 3.3V operation is needed, select the 'LF' low-voltage variant instead. Always place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair and ensure the MCLR reset network follows Microchip's recommended RC values for reliable power-on behavior.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing an at-a-glance engineering comparison for PIC18F4439-E/P selection, replacement, and sourcing decisions.

ドロップイン代替品: PIC18F4439-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: PIC18F4439-E/P (同一形状・フットプリント) — 相違点: Operating Temperature, Package, Mounting Type, Communication, RoHS Status.

Microchip Technology
Package: 44-pin TQFP (PT) 10x10 mm
Mounting Type: Surface Mount
RoHS Status: Compliant
Microchip Technology
Operating Temperature: -40C to +85C (Industrial)
Package: PDIP-40 (DIP-40, 0.600")
Mounting Type: Through-Hole (DIP)
Microchip Technology
Operating Temperature: -40 C to +125 C (Extended, -E suffix)
Package: 40-pin PDIP (DIP-40, 0.600 inch)
Communication: 1x USART (RS-232/RS-485), 1x MSSP (SPI/I2C)
Microchip Technology
Operating Temperature: -40 C to +125 C (automotive / -E grade)
Package: 44-pin QFN (ML) 8x8 mm with exposed thermal pad
Mounting Type: Surface Mount

クイック比較ツール — 並列比較する代替部品を選択:

PIC18F4439-I/P

✅ ドロップイン
📦 PDIP-40
industrial -40C to +85C grade vs -40C to +125C (E); same die, same pinout

📋 参考代替品(カタログ未掲載)

PIC18F4439-E/ML

✅ ドロップイン ⚠️ 仕様未検証
Microchip Technology
📦 PDIP-40 (same die, QFN variant on Site MPN list)
8-bit RISC Microcontroller (PIC18F family) · 12 KB · 640 bytes · 256 bytes · 40 MHz (10 MIPS) · 4.2 V to 5.5 V · 36 · 10-bit, up to 13 channels

✓ 在庫あり

$5.25 / 個

データシートを見る →

PIC18F4423-E/P

✅ ドロップイン
Microchip Technology
📦 PDIP-40
8-bit PIC18 enhanced RISC (Harvard) · 16 KB · 768 bytes · 256 bytes · 40 MHz (10 MIPS) · 4.2 V to 5.5 V · 36 · 10-bit, up to 13 channels

✓ 在庫あり

$2.68 / 個

データシートを見る →

PIC18F4331-I/PT

✅ ドロップイン
Microchip Technology
📦 PDIP-40
PIC18F 8-bit · 8 KB (4K x 16) Flash · 768 bytes · 256 bytes · 40 MHz (10 MIPS) · 4.2 V to 5.5 V · 36 · 10-bit, up to 9 channels

✓ 在庫あり

$3.05 / 個

データシートを見る →

PIC18F4410-I/P

✅ ドロップイン
Microchip Technology
📦 PDIP-40
PIC18F · 8-bit PIC RISC · Enhanced Harvard · 16 KB · 768 bytes · 256 bytes · 40 MHz · 4.2 V to 5.5 V

✓ 在庫あり

$4.7 / 個

データシートを見る →

PIC18F45K80-E/P

✅ ドロップイン
📦 PDIP-40
32 KB Flash vs 12 KB (+167%), 16 MIPS, ECAN module; same 40-pin PDIP footprint, no dedicated motor-control PWM

📋 参考代替品(カタログ未掲載)

PIC18F4439-E/P 最大定格&電気的特性

Manufacturer Microchip Technology
Series PIC 18F
Core Processor PIC18
Core Size 8-bit
Maximum Clock Speed 40 MHz
Program Memory Size 12 KB (6K x 16)
Program Memory Type Flash
Supply Voltage (VDD) 4.2 V to 5.5 V
I/O Pins 36
A/D Converter 10-bit
Package Type PDIP-40 (DIP-40, 0.600 inch)
実装タイプ Through-Hole
動作温度 -40C to +125C (E = Extended grade)
Special Features Single-phase motor control kernel, nanoWatt Technology, Power Control PWM
RoHS ステータス Compliant (Pb-free marking per Microchip product page)

PIC18F4439-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 — Master Clear (reset) input / programming voltage
ピン 2 RA0/AN0 — PORTA bit 0 / Analog input 0
ピン 3 RA1/AN1 — PORTA bit 1 / Analog input 1
ピン 4 RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / ADC VREF-
ピン 5 RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC VREF+
ピン 6 RA4/T0CKI — PORTA bit 4 / Timer0 clock input
ピン 7 RA5/AN4 — PORTA bit 5 / Analog input 4
ピン 8 RE0/RD — PORTE bit 0 / Read control for parallel slave port
ピン 9 RE1/WR — PORTE bit 1 / Write control for parallel slave port
ピン 10 RE2/CS — PORTE bit 2 / Chip select for parallel slave port
ピン 11 VDD — Positive supply voltage
ピン 12 VSS — Ground reference
ピン 13 OSC1/CLKIN — Oscillator crystal input / external clock input
ピン 14 OSC2/CLKOUT — Oscillator crystal output / clock output
ピン 15 RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input
ピン 16 RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 PWM output
ピン 17 RC2/CCP1 — PORTC bit 2 / CCP1 PWM output
ピン 18 RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock
ピン 19 RD0/PSP0 — PORTD bit 0 / Parallel slave port bit 0
ピン 20 RD1/PSP1 — PORTD bit 1 / Parallel slave port bit 1
ピン 21 RD2/PSP2 — PORTD bit 2 / Parallel slave port bit 2
ピン 22 RD3/PSP3 — PORTD bit 3 / Parallel slave port bit 3
ピン 23 RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data
ピン 24 RC5/SDO — PORTC bit 5 / SPI data out
ピン 25 RC6/TX/CK — PORTC bit 6 / USART TX / USART clock
ピン 26 RC7/RX/DT — PORTC bit 7 / USART RX / USART data
ピン 27 RD4/PSP4 — PORTD bit 4 / Parallel slave port bit 4
ピン 28 RD5/PSP5 — PORTD bit 5 / Parallel slave port bit 5
ピン 29 RD6/PSP6 — PORTD bit 6 / Parallel slave port bit 6
ピン 30 RD7/PSP7 — PORTD bit 7 / Parallel slave port bit 7
ピン 31 VSS — Ground reference
ピン 32 VDD — Positive supply voltage
ピン 33 RB0/INT0/FLTA — PORTB bit 0 / External interrupt 0 / PWM fault A
ピン 34 RB1/INT1 — PORTB bit 1 / External interrupt 1
ピン 35 RB2/INT2 — PORTB bit 2 / External interrupt 2
ピン 36 RB3/INT3 — PORTB bit 3 / External interrupt 3 / PGM (low-voltage programming)
ピン 37 RB4 — PORTB bit 4
ピン 38 RB5 — PORTB bit 5
ピン 39 RB6/PGC — PORTB bit 6 / ICSP clock
ピン 40 RB7/PGD — PORTB bit 7 / ICSP data

主な用途

PIC18F4439-E/P の用途: 6 件s: Single-Phase Induction Motor Control, HVAC Blower and Fan Speed Controllers, White Goods and Appliance Control, Small Industrial Pumps and Compressors, General-Purpose 5V Embedded Control, Renewable Energy Micro-Inverter Controllers.

🏭

Single-Phase Induction Motor Control

The PIC18F4439-E/P integrates a Power Control PWM module and Motion Feedback Module specifically tuned for single-phase induction motor commutation. Its 40 MHz core and 10-bit ADC sample back-EMF at rates sufficient for closed-loop torque control in 50/60 Hz fan and pump drives. The 36 I/O pins expose Hall-sensor inputs, triac gate drivers, and zero-cross detect signals, allowing a complete variable-speed drive on one IC without an external motor controller. NanoWatt Technology idle modes drop quiescent current below 1 uA when the motor is stopped, meeting energy-star standby budgets for white goods.

🏭

HVAC Blower and Fan Speed Controllers

Variable-speed HVAC blowers use the PIC18F4439-E/P motor kernel to compute RPM from the back-EMF feedback module and adjust PWM duty in real time. The 10-bit ADC resolves supply voltage and temperature sensor inputs for over-current and over-temperature shutdown. Extended -40C to +125C operation supports rooftop unit and outdoor condenser installations where ambient swings exceed the industrial 85C ceiling. The 40-pin PDIP package suits serviceable field-replacement modules where through-hole soldering aids field rework.

🏭

White Goods and Appliance Control

Washing machines, dishwashers, and refrigerators benefit from the PIC18F4439-E/P combined motor-control plus general-purpose I/O on one die. The 12KB Flash fits appliance-class firmware including motor commutation, user-interface scanning, and safety diagnostics. The 36 I/O drives 7-segment displays, keypads, water-level sensors, and door-switch interlatches. Extended temperature grade survives the steam and heat of under-counter laundry installations. NanoWatt Technology sleep modes preserve Energy Star standby power budgets when the appliance is idle.

🏭

Small Industrial Pumps and Compressors

Fractional-HP pumps and small compressors (1/8 HP to 1/2 HP) use the PIC18F4439-E/P to implement sensorless or Hall-sensor based variable-speed control. The motor-control PWM kernel handles soft-start ramps, current limiting, and stall recovery without an external DSP. The 4.2V to 5.5V supply range supports standard 5V industrial backplanes. Extended temperature grade supports outdoor pump stations and rooftop compressor installations. 12 KB Flash holds the control law, fault log, and serial-modbus interface for SCADA integration.

🔧

General-Purpose 5V Embedded Control

Outside of motor control, the PIC18F4439-E/P serves as a general-purpose 5V MCU for legacy industrial PLCs, scientific instrumentation, and educational platforms. Its 40 MHz core, 12KB Flash, and 36 I/O match the kind of mid-range compute envelope that hobbyists expect from a classic PIC18. The through-hole PDIP package is breadboard-friendly, making the device a popular choice for university labs and prototyping kits where SOIC/QFN fine-pitch parts are impractical. Peripherals include USART, SPI, I2C, four timers, and two comparators.

⚡

Renewable Energy Micro-Inverter Controllers

Small-scale solar micro-inverters (typically 100W to 300W class) use the PIC18F4439-E/P motor-control kernel adapted for grid-tie inverter PWM, since the Power Control PWM module generates complementary high-resolution outputs with programmable dead-time. The 10-bit ADC samples PV string current and voltage for MPPT algorithms. Extended temperature grade handles outdoor inverter enclosures that experience full sun loading. 12KB Flash stores MPPT firmware, grid-synchronization routines, and anti-islanding protection.

おすすめ製品の概要

MCP8026 3-phase BLDC motor gate driver companion 使用用途: Single-Phase Induction Motor Control MCP14A0901 high-side MOSFET driver for triac replacement 使用用途: Single-Phase Induction Motor Control MCP9700 low-power analog temperature sensor 使用用途: HVAC Blower and Fan Speed Controllers MCP1700 3.3V LDO for ancillary analog rail 使用用途: HVAC Blower and Fan Speed Controllers PIC18F46Q10 successor part with more memory for richer HMI 使用用途: White Goods and Appliance Control MCP23S17 SPI I/O expander for additional keypad/LED drivers 使用用途: White Goods and Appliance Control MCP2515 standalone CAN controller for industrial networks 使用用途: Small Industrial Pumps and Compressors MCP6N11 low-noise instrumentation amp for current sensing 使用用途: Small Industrial Pumps and Compressors MCP2221A USB-to-UART/I2C bridge for host connectivity 使用用途: General-Purpose 5V Embedded Control 25LC256 SPI EEPROM for data logging 使用用途: General-Purpose 5V Embedded Control MCP3911 3-channel ADC for PV string voltage/current monitoring 使用用途: Renewable Energy Micro-Inverter Controllers MCP14A0151 gate driver for the inverter MOSFETs 使用用途: Renewable Energy Micro-Inverter Controllers
What is the maximum clock speed of PIC18F4439-E/P?
The PIC18F4439-E/P runs up to 40 MHz on its internal oscillator or external crystal. According to the Microchip PIC18F4439 datasheet (DS39610D), the instruction cycle is one-fourth of the oscillator frequency, giving a 10 MIPS peak execution rate. At 5V VDD this 40 MHz FOSC spec is fully guaranteed across the -40C to +125C extended temperature range.
What is the program memory size of PIC18F4439-E/P?
The PIC18F4439-E/P integrates 12 KB of self-programmable Flash program memory organized as 6K x 16 instruction words. The Flash supports ICSP (In-Circuit Serial Programming) and runtime self-write, allowing bootloader-based field upgrades without external programmer hardware per the Microchip datasheet.
What supply voltage range does PIC18F4439-E/P require?
PIC18F4439-E/P operates from 4.2 V to 5.5 V on its VDD pins; operation below 4.2 V is not specified. If your system runs at 3.3 V, choose the PIC18LF4439 variant instead. The 5V rail makes the E/P ideal for legacy industrial and white-goods designs where 3.3V MCUs are not usable.
What does the 'E' suffix mean in PIC18F4439-E/P?
The 'E' suffix denotes the Extended operating temperature grade of -40C to +125C, suitable for automotive under-hood and industrial applications. The 'I' suffix (PIC18F4439-I/P) covers -40C to +85C industrial use, and the absence of a suffix indicates the commercial 0C to +70C range.
Does PIC18F4439-E/P have a built-in motor controller?
Yes, the PIC18F4439 includes a dedicated single-phase induction motor-control kernel with a Power Control PWM module and Motion Feedback Module. This eliminates the need for an external motor-controller ASIC in fan, pump, and small compressor designs, reducing BOM cost and PCB area per the Microchip PIC18F4439 product page.
How many I/O pins does PIC18F4439-E/P expose?
The PIC18F4439-E/P exposes 36 digital I/O pins across PORTA through PORTE, multiplexed with the 10-bit ADC inputs and motion-feedback analog channels. With 40 pins total, four are reserved for VDD, VSS, MCLR, and the main oscillator, leaving 36 for general-purpose I/O per the Microchip datasheet pinout table.
Where can I download the PIC18F4439-E/P datasheet PDF?
The official Microchip PIC18F4439 datasheet (document DS39610D) is available from the Microchip product page at microchip.com/en-us/product/PIC18F4439. The PDF contains electrical characteristics, memory maps, the 40-pin PDIP pinout, instruction set summary, and motor-control peripheral configuration details.
What is the best drop-in replacement for PIC18F4439-E/P?
The drop-in same-package replacement for PIC18F4439-E/P is PIC18F4439-I/P (industrial temperature grade, 40-pin PDIP). Both share identical pinout, peripheral set, and program-memory size; only the operating-temperature range differs. Per Microchip's pin-and-code compatibility chart, the same PCB and firmware can be reused across the E and I variants.
PIC18F4439-E/P vs PIC18F4439-I/P - which should I choose?
Choose PIC18F4439-I/P for general industrial and consumer applications operating up to 85C ambient - it is identical to the -E/P except for temperature grade. Choose PIC18F4439-E/P only when your end-product requires operation between 85C and 125C, such as automotive under-hood or outdoor industrial enclosures. The -E grade carries a small cost premium.
Is PIC18F4439-E/P RoHS compliant?
Yes, the PIC18F4439-E/P is RoHS compliant per Microchip's product page; the part marking includes a Pb-free identifier. The device is also lead-free and supports the standard reflow-profile guidelines in JEDEC J-STD-020 for the PDIP-40 package, although the through-hole form factor is typically hand-soldered or wave-soldered rather than reflowed.
Can I program PIC18F4439-E/P in-circuit?
Yes, the PIC18F4439-E/P supports In-Circuit Serial Programming (ICSP) via the PGC and PGD pins shared with RB6 and RB7, plus the MCLR/VPP pin. You can use the Microchip PICkit 3, PICkit 4, MPLAB SNAP, or ICD 4 programmer/debugger to flash firmware without removing the MCU from the PCB.
What is the price of PIC18F4439-E/P in 2026?
As of 2026-09-27, the PIC18F4439-E/P is priced at approximately $8.10 in single-unit quantities, with volume breaks down to about $4.85 at 1000-piece reels/tubes via franchised distributors. Pricing is stable because the part is in active production; consult DigiKey or Mouser for live stock and any volume tier variations.
Is PIC18F4439-E/P in stock at major distributors?
As of 2026-09-27, the PIC18F4439-E/P is listed as in stock at multiple distributors including DigiKey, Mouser, and Microchip Direct. Typical lead time for tube quantities is 2-4 weeks; for tape-and-reel variants (non-P DIP), inventory cycles faster due to higher demand in production lines.
What is the difference between PIC18F4439 and PIC18F45K80?
PIC18F45K80 is a newer K-series part with 32KB Flash, 4KB RAM, and 16 MIPS performance in the same PDIP-40 footprint, while the PIC18F4439 offers 12KB Flash and the dedicated single-phase motor-control kernel. Use PIC18F4439 for legacy single-phase motor designs; switch to PIC18F45K80 for CAN-bus or higher-memory applications.
What are the key specifications of PIC18F4439-E/P that engineers should know?
The PIC18F4439-E/P key specifications are: 8-bit PIC18 core at 40 MHz (10 MIPS), 12 KB Flash program memory, 36 I/O pins, 10-bit ADC, single-phase motor-control PWM kernel with motion feedback, 4.2-5.5 V VDD, extended -40C to +125C temperature grade, and 40-pin PDIP through-hole package. Source: Microchip datasheet DS39610D.
What is the best cross-brand equivalent for PIC18F4439-E/P?
There is no direct cross-brand drop-in equivalent for PIC18F4439-E/P because the PIC18 instruction set, ICSP programming, and motor-control peripherals are Microchip-proprietary. The closest functional alternatives from other vendors require firmware rewrite and PCB rework (different packages, different toolchains). For new designs, consider Microchip's own PIC18F46Q10 or dsPIC33FJ series instead.

エンジニアリング参考データ: PIC18F4439-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 PIC18F4439-E/P when designing single-phase induction motor controllers (fans, pumps, compressors) that operate in extended-temperature environments up to +125C, where you need a through-hole PDIP package for serviceable field replacement, and where the integrated Power Control PWM module eliminates an external motor-control ASIC. Choose PIC18F4439-I/P for the same application at industrial temperatures up to +85C - it is the most cost-effective drop-in variant. Choose PIC18F4331-I/P when you can trade down to 8KB Flash for lower unit cost. Choose PIC18F45K80-E/P only when you need 32KB Flash, ECAN, or 12-bit ADC - but note it lacks the dedicated motor-control kernel. Avoid PIC18F4423-E/P and PIC18F4410-I/P for motor control because they require firmware-based PWM and do not include the motion-feedback module.

代替品との比較

パラメータ この製品 PIC18F4439-I/P PIC18F4423-E/P PIC18F4331-I/P PIC18F4410-I/P PIC18F45K80-E/P
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package PDIP-40 PDIP-40 (same) PDIP-40 (same) PDIP-40 (same) PDIP-40 (same) PDIP-40 (same)
Program Memory (Flash) 12 KB 12 KB (same) 16 KB (+33%) 8 KB (-33%) 16 KB (+33%) 32 KB (+167%)
Maximum Clock 40 MHz 40 MHz (same) 40 MHz (same) 40 MHz (same) 40 MHz (same) 64 MHz (+60%)
A/D Converter 10-bit 10-bit (same) 8-bit (lower) 10-bit (same) 10-bit (same) 12-bit (higher)
Motor Control Kernel Yes (single-phase) Yes (same) No (general-purpose) Yes (single-phase) No (general-purpose) No (general-purpose)
Operating Temperature -40C to +125C (E grade) -40C to +85C (I grade) -40C to +125C (E grade) -40C to +85C (I grade) -40C to +85C (I grade) -40C to +125C (E grade)
I/O Pins 36 36 (same) 36 (same) 36 (same) 36 (same) 36 (same)
Approx. Unit Price (qty 1) $8.10 $7.20 (-11%) $8.40 (+4%) $7.60 (-6%) $8.30 (+2%) $9.10 (+12%)

主な差別化要因

  • Dedicated single-phase motor-control kernel eliminates external motor-controller ASIC (vs PIC18F4423-E/P)
  • Extended -40C to +125C temperature grade for harsh environments (vs PIC18F4439-I/P)
  • 40-pin PDIP through-hole package for breadboard and field-replaceable designs (vs PIC18F45K80-E/P)

設計ノート

Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD pin (pins 11 and 32) and a bulk 10 uF tantalum or aluminum electrolytic at the PCB power-entry point. The PIC18F4439-E/P draws up to 16 mA at 40 MHz with all peripherals active; ensure the 5V regulator has at least 50% margin. For sleep-mode operation, nanoWatt Technology reduces quiescent current to <1 uA when the system clock is gated off.

The 40-pin PDIP has 2.54 mm (0.100 inch) pin pitch and standard through-hole footprint; reserve a 25 mm x 10 mm minimum land pattern area on the PCB. Keep analog inputs (AN0-AN4) routed away from the PWM output traces and the high-current motor-driver signals; a ground pour under the MCU with a single-point connection to the analog ground star improves ADC noise performance by 1-2 LSB.

The PIC18F4439-E/P MCLR pin (pin 1) must be pulled to VDD through a 10 kohm resistor and have a 100 nF capacitor to ground for proper power-on reset behavior per the Microchip PIC18F4439 datasheet. ICSP programming requires the PGC (RB6, pin 39) and PGD (RB7, pin 40) lines to be reachable via a 6-pin header; add 4.7 kohm series resistors on these lines if they connect to external circuitry to prevent programming conflicts.

At 40 MHz and 5V supply with all peripherals active, the PIC18F4439-E/P dissipates approximately 80 mW internally, well within the PDIP-40 thermal envelope. The extended -40C to +125C grade ensures operation in sealed outdoor enclosures but does not imply high-power dissipation; if your ambient exceeds 70C, derate the clock frequency to 25 MHz to keep junction temperature rise manageable.

Do not apply VDD below 4.2 V - the brown-out reset (BOR) and Flash programming voltages are not guaranteed. If your system runs at 3.3 V, select the PIC18LF4439 variant. Avoid using the parallel slave port (PORTD/PSPx) pins as general-purpose I/O without first disabling the PSP module in the PORTE TRIS register, or you will see bus contention on PORTD. Finally, always read the latest Microchip errata document (DS80392) for known silicon issues before finalizing firmware.

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
Unknown
紛争鉱物
Compliant

RoHS and lead-free per Microchip product page markings. Not AEC-Q100 qualified - this is an industrial/consumer grade MCU, not automotive-qualified. REACH compliance declared by Microchip. Conflict-minerals reporting compliant per Microchip's CFSI statements.

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

PIC18F4439-E/P PIC18F4439-E/P datasheet Microchip PIC18F4439 single-phase induction motor microcontroller PIC18 40-pin DIP motor control PIC18F4439 fan controller application PIC18F4439-E/P vs PIC18F4439-I/P PIC18F4439-E/P drop-in replacement buy PIC18F4439-E/P online PIC18F4439-E/P pinout 40-DIP how to program PIC18F4439 with PICkit 8-bit MCU 12KB Flash motor control PWM PIC18F4439 white goods appliance PIC18F4439 nanoWatt Technology

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