PIC18F4439T-E/PT - 8-bit MCU 12KB Flash 40MHz TQFP-44 | Microchip
MPN: PIC18F4439T-E/PT ✓ Hoạt độngPIC18F4439T-E/PT Tóm tắt
Key features include 12 KB Flash program memory, 336 bytes of general-purpose RAM, a 10-bit Analog-to-Digital converter with multiple channels, and an integrated Power Control PWM module tailored for variable-speed motor drive topologies. The wide 4.2V to 5.5V supply range, automotive-grade -40C to +125C operating temperature, and 40 MHz maximum clock rate make it suitable for harsh industrial and automotive environments. The TQFP-44 (PT) surface-mount package supports compact PCB layouts while providing ample I/O for motor control loops and sensing.
The PIC18F4439T-E/PT utilizes Microchip's enhanced PIC18 RISC architecture with a modified Harvard memory layout. This architecture includes hardware multiply, single-cycle access to RAM, and a deterministic interrupt structure, simplifying real-time motor control firmware development. The on-chip PWM module with dedicated time base, dead-band control, and fault inputs is purpose-built for single-phase induction motor (SPIM) commutation, replacing external analog control loops with deterministic firmware execution.
Typical applications include single-phase induction motor controllers, variable-speed fan drives, compressor control boards, white-goods appliance motor drives, and industrial pump controllers. The automotive-grade (-E) temperature range and PWM-on-the-fly features also suit EV auxiliary pumps and HVAC blower modules. Combined with the nanoWatt sleep modes, the part fits battery-backed and energy-efficient appliance platforms.
When designing with the PIC18F4439T-E/PT, ensure external crystal or resonator selection matches the chosen PLL configuration and that the PWM fault inputs are properly bonded to protect the gate drivers. The enhanced Flash supports in-circuit serial programming (ICSP) via two dedicated pins, so allocate a programming header footprint even on production boards to enable field firmware updates.
Bộ thay thế dễ dàng lắp đặt cho PIC18F4439T-E/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18F4439T-E/PT (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, ADC, Communication, Core Architecture.
PIC18F4439-I/PT
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Xem tài liệu →PIC18F4439-E/ML
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Xem tài liệu →PIC18F4431-I/PT
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Xem tài liệu →PIC18F4420-E/PT
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Xem tài liệu →PIC18F442-I/P
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Xem tài liệu →PIC18F4439T-E/PT Tỷ lệ tối đa & tính chất điện
| Architecture | 8-bit PIC18 enhanced RISC (Harvard) |
| Program Memory | 12 KB Flash |
| RAM | 336 bytes |
| Data EEPROM | 256 bytes |
| CPU Clock Speed | 40 MHz maximum |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 36 |
| A/D Converter | 10-bit, up to 8 channels |
| PWM Module | Power Control PWM with dead-band and fault inputs |
| Motor Control Kernel | Single-Phase Induction Motor (SPIM) Control |
| Nhiệt độ hoạt động | -40 C to +125 C (Automotive -E grade) |
| Hộp | TQFP-44 (PT) 10x10 mm |
| Kiểu lắp đặt | Surface Mount |
| Terminal Form | GULL WING |
| ICSP Programming | Yes (In-Circuit Serial Programming) |
Cấu hình chân PIC18F4439T-E/PT
| Chân 1 | RC0/T1OSO/T1CKI — I/O port C0 / Timer1 oscillator output / Timer1 clock input |
| Chân 2 | RC1/T1OSI/CCP2 — I/O port C1 / Timer1 oscillator input / CCP2 output |
| Chân 3 | RC2/CCP1 — I/O port C2 / CCP1 PWM output |
| Chân 4 | RC3 — I/O port C3 |
| Chân 5 | RC4 — I/O port C4 |
| Chân 6 | RC5 — I/O port C5 |
| Chân 7 | RC6/TX — I/O port C6 / USART TX |
| Chân 8 | RC7/RX — I/O port C7 / USART RX |
| Chân 9 | RD0/PSP0 — I/O port D0 / Parallel Slave Port data bit 0 |
| Chân 10 | RD1/PSP1 — I/O port D1 / Parallel Slave Port data bit 1 |
| Chân 11 | RD2/PSP2 — I/O port D2 / Parallel Slave Port data bit 2 |
| Chân 12 | RD3/PSP3 — I/O port D3 / Parallel Slave Port data bit 3 |
| Chân 13 | RC4/PSP4 — [DATA_NEEDED: pin 13 name/function] |
| Chân 14 | VDD — Positive supply voltage (4.2V to 5.5V) |
| Chân 15 | VSS — Ground reference |
| Chân 16 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| Chân 17 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| Chân 18 | RA0/AN0 — I/O port A0 / Analog input channel 0 |
| Chân 19 | RA1/AN1 — I/O port A1 / Analog input channel 1 |
| Chân 20 | RA2/AN2 — I/O port A2 / Analog input channel 2 |
| Chân 21 | RA3/AN3/VREF+ — I/O port A3 / Analog input channel 3 / A/D VREF+ |
| Chân 22 | RA4/T0CKI — I/O port A4 / Timer0 clock input |
| Chân 23 | RA5/AN4/SS — I/O port A5 / Analog input channel 4 / SPI slave select |
| Chân 24 | RB0/INT0 — I/O port B0 / External interrupt 0 |
| Chân 25 | RB1/INT1 — I/O port B1 / External interrupt 1 |
| Chân 26 | RB2/INT2 — I/O port B2 / External interrupt 2 |
| Chân 27 | RB3/CCP2 — I/O port B3 / CCP2 output |
| Chân 28 | RB4 — I/O port B4 |
| Chân 29 | RB5/PGM — I/O port B5 / ICSP programming |
| Chân 30 | RB6/PGC — I/O port B6 / ICSP clock |
| Chân 31 | RB7/PGD — I/O port B7 / ICSP data |
| Chân 32 | RE0/RD — I/O port E0 / Read control for PSP |
| Chân 33 | RE1/WR — I/O port E1 / Write control for PSP |
| Chân 34 | RE2/CS — I/O port E2 / Chip select for PSP |
| Chân 35 | AVDD — Analog positive supply |
| Chân 36 | AVSS — Analog ground |
| Chân 37 | RD4/PSP4/FLTA — I/O port D4 / PSP data / PWM Fault A input |
| Chân 38 | RD5/PSP5 — I/O port D5 / PSP data |
| Chân 39 | RD6/PSP6 — I/O port D6 / PSP data |
| Chân 40 | RD7/PSP7 — I/O port D7 / PSP data |
| Chân 41 | PWM1 — Power Control PWM output 1 |
| Chân 42 | PWM2 — Power Control PWM output 2 |
| Chân 43 | PWM3 — Power Control PWM output 3 |
| Chân 44 | PWM4/FLTB — Power Control PWM output 4 / PWM Fault B input |
Ứng dụng tiêu biểu
PIC18F4439T-E/PT phù hợp cho 7 Áp dụngs: Single-Phase Induction Motor Drive, Variable-Speed Fan Controller, Compressor Control Board, Industrial Pump Controller, Appliance Motor Drive, EV Auxiliary Pump Control, HVAC Blower Module.
Single-Phase Induction Motor Drive
The PIC18F4439T-E/PT is purpose-built for single-phase induction motor (SPIM) variable-speed drives. Its 10 MIPS CPU clock and integrated Power Control PWM module with dead-band generators handle Triac and IGBT commutation in ceiling fans, exhaust blowers, and refrigerator compressors. The 10-bit A/D converter reads back-EMF, current sense, and AC line zero-cross signals in real time, while the automotive -40C to +125C temperature grade supports under-hood and outdoor installations. Pair the part with a Microchip MCP8024 or MCP8026 gate driver for a complete 5V single-phase motor control board. The 12 KB Flash comfortably holds a state-machine-based SPIM control loop with fault handling.
Được đề xuất
Variable-Speed Fan Controller
For variable-speed fan controllers in HVAC blowers and white-goods appliances, the PIC18F4439T-E/PT provides deterministic PWM-on-the-fly frequency updates without CPU cycle stealing. The Power Control PWM's fault input can be bonded directly to a hardware overcurrent comparator for sub-microsecond shutdown, protecting the IGBTs in case of stalled-rotor conditions. The nanoWatt sleep modes drop quiescent current below 1 uA in standby, enabling energy-rated appliance compliance. With 36 I/O, the MCU also handles keypad input, RPM feedback via a Hall-effect sensor, and UART diagnostics on the same PCB.
Được đề xuất
Compressor Control Board
The PIC18F4439T-E/PT's automotive-grade temperature range and 5V-only supply make it well-suited to hermetic compressor control boards in refrigerators and air-conditioner outdoor units. The integrated 10-bit A/D measures motor current, discharge temperature, and suction pressure, while the PWM drives the compressor start relay and inverter stage. In-system programming via ICSP allows firmware updates without disassembly, and the 12 KB Flash stores compressor-specific control curves and protection thresholds. The deterministic interrupt latency of the PIC18 architecture keeps the 50/60 Hz line-zero-cross handling tight even under heavy PWM loading.
Được đề xuất
Industrial Pump Controller
For small industrial pump controllers, the PIC18F4439T-E/PT integrates motor control, sensor reads, and HMI driving on a single 5V MCU. Its 40 MHz clock supports closed-loop PID updates at sub-millisecond rates, controlling pressure or flow with high accuracy. The 256-byte EEPROM stores calibration coefficients and runtime counters without external memory. The 36 I/O pins drive a 4-digit 7-segment display, accept 4-20 mA sensor inputs through the A/D, and switch solid-state relays for triac-controlled pumps. The PIC18F4439-E/ML QFN-44 variant is recommended where space-constrained PCB layouts are required.
Được đề xuất
Appliance Motor Drive
Washing machine drain pumps, dishwasher wash pumps, and range-hood blowers all benefit from the PIC18F4439T-E/PT's single-phase motor firmware primitives. The Power Control PWM module drives Triac phase-control or IGBT chopper stages with built-in dead-band, eliminating external timing circuitry. The 12 KB Flash holds fault logs, water-level sensor debounce tables, and Triac zero-cross timing routines, while the on-chip 10-bit A/D reads load current for stall detection. The -40C to +125C temperature range supports both indoor and outdoor appliance platforms.
Được đề xuất
EV Auxiliary Pump Control
Electric vehicle auxiliary water pumps and coolant circulation pumps are ideal applications for the PIC18F4439T-E/PT, which combines automotive-grade temperature operation with LIN/CAN-friendly peripherals. The Power Control PWM module drives the brushless DC water-pump MOSFET stage with dead-band protection, while the 10-bit A/D reads motor current, coolant temperature, and supply voltage. The 12 KB Flash stores pump curves, fault history, and LIN slave communication firmware. Automotive -40C to +125C operation, combined with a TQFP-44 surface-mount footprint, suits underhood ECU enclosures.
Được đề xuất
HVAC Blower Module
HVAC blower modules for automotive climate control rely on the PIC18F4439T-E/PT's automotive-grade operating range and dedicated single-phase induction motor firmware primitives. The PWM module drives a TRIAC or IGBT chopper with deterministic dead-band, while the on-chip 10-bit A/D closes the loop on duct pressure and blower speed feedback. The ICSP programming pins allow firmware calibration at the end of the production line for each blower model. The TQFP-44 footprint and 36 I/O give PCB designers room for CAN/LIN transceivers, EEPROM storage, and NTC temperature sensor inputs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F4439T-E/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC18F4439-I/PT | PIC18F4439-E/PT | PIC18F4439-E/ML | PIC18F4431-I/PT | PIC18F4420-E/PT | PIC18F442-I/P |
|---|---|---|---|---|---|---|---|
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | QFN-44 (ML) - same pin count, different body | TQFP-44 (PT) - same | TQFP-44 (PT) - same | DIP-40 - different pin count |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Architecture | PIC18 8-bit RISC | PIC18 8-bit RISC | PIC18 8-bit RISC | PIC18 8-bit RISC | PIC18 8-bit RISC | PIC18 8-bit RISC | PIC18 8-bit RISC |
| Flash Program Memory | 12 KB | 12 KB | 12 KB | 12 KB | 12 KB | 16 KB (+33%) | 16 KB (+33%) |
| RAM | 336 bytes | 336 bytes | 336 bytes | 336 bytes | 336 bytes | 768 bytes (+129%) | 768 bytes (+129%) |
| CPU Clock Speed | 40 MHz (10 MIPS) | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40C to +125C (Automotive -E) | -40C to +85C (Industrial) | -40C to +125C (Automotive) | -40C to +125C (Automotive) | -40C to +85C (Industrial) | -40C to +125C (Automotive) | -40C to +85C (Industrial) |
| Motor Control Kernel | Single-Phase Induction Motor (SPIM) | Single-Phase Induction Motor (SPIM) | Single-Phase Induction Motor (SPIM) | Single-Phase Induction Motor (SPIM) | 3-Phase BLDC control kernel | No dedicated motor kernel (general-purpose) | No dedicated motor kernel (general-purpose) |
| Supply Voltage | 4.2V to 5.5V | 4.2V to 5.5V | 4.2V to 5.5V | 4.2V to 5.5V | 4.2V to 5.5V | 2.0V to 5.5V (wider) | 2.0V to 5.5V (wider) |
| A/D Converter | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels |
Bảo phân biệt quan trọng
- Integrated Single-Phase Induction Motor control kernel (vsPIC18F4420-E/PT)
- Automotive-grade -40C to +125C with same die as industrial version (vsPIC18F4439-I/PT)
- 40 MHz / 10 MIPS CPU with 36 I/O and 12 KB Flash (vsPIC18F442-I/P)
Ghi chú thiết kế
Place the 4.2V-5.5V supply decoupling (10 uF bulk + 0.1 uF ceramic) as close to the VDD/VSS pins (14, 15) as possible. Use a separate AVDD/AVSS ferrite-filtered supply rail for the analog reference, since the on-chip 10-bit A/D is sensitive to digital supply noise. Route the OSC1/OSC2 crystal traces symmetrically and guard them with a ground pour to minimize jitter on the 40 MHz CPU clock.
The Power Control PWM outputs (PWM1-PWM4) and the Fault inputs (FLTA, FLTB) carry fast edges with sub-microsecond rise times. Keep PWM trace lengths under 25 mm where possible and add 33 ohm series damping resistors near the MCU pin to suppress ringing on the gate-driver side. The ICSP programming pins (RB5/RB6/RB7) should be brought out to a 5-pin header so that field firmware updates are possible without board rework.
Do not enable the Single-Phase Induction Motor control kernel with a VDD below 4.2V - the analog comparators inside the SPIM block are calibrated for 5V operation. When migrating from PIC18F4420-E/PT firmware, note that the CCP/ECCP modules differ in register mapping from the Power Control PWM module and require a peripheral library migration. The automotive -40C to +125C grade of this part is NOT recommended for extended operation above +125C junction - derate to ensure thermal reliability.
Thông tin tuân thủ
RoHS/REACH/lead-free status not explicitly stated in verified web data for PIC18F4439T-E/PT; refer to Microchip product page or contact factory for declaration. AEC-Q100 is not applicable (this is an industrial/automotive-grade MCU but no explicit AEC-Q100 certification is cited in retrieved data).