PIC18F2439T-E/SO - 8-bit 12KB Flash MCU Motor Control | Microchip
MPN: PIC18F2439T-E/SO ✓ Hoạt độngPIC18F2439T-E/SO Tóm tắt
What is a PIC18F microcontroller? PIC18F is Microchip's high-performance 8-bit Flash MCU family built on a Harvard RISC architecture with hardware multiplier. PIC18F parts occupy the middle of the 8-bit portfolio between baseline PIC10/12/16 and 16-bit dsPIC33 devices, balancing code density, peripheral integration, and C-compiler friendliness for cost-sensitive real-time control.
The PIC18F2439 includes a dedicated Power Control PWM module with up to four PWM outputs, a 10-bit ADC with auto-sampling, a Capture/Compare/PWM (CCP) module, an enhanced USART, and a 4x phase-locked loop option for system clock flexibility. Three power-managed operating modes allow designers to trade switching frequency for quiescent current in standby. Integrated peripherals reduce BOM cost in fan, pump, and single-phase induction motor drive applications.
Typical applications include single-phase induction motor control for white goods and HVAC blowers, ceiling fans and pumps, low-cost BLDC driver boards, sensor signal conditioning nodes, and general-purpose industrial control loops requiring deterministic 8-bit performance.
When designing with this part, the T-suffix denotes tape-and-reel packaging, the E denotes the extended operating temperature grade (-40C to +125C), and the /SO indicates the 28-pin SOIC footprint. Validate the ICSP programming interface against the chosen in-circuit programmer, and confirm PWM dead-time and ADC acquisition timing against motor commutation requirements.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical motor-control design notes beyond the manufacturer datasheet excerpt.
Bộ thay thế dễ dàng lắp đặt cho PIC18F2439T-E/SO — 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 PIC18F2439T-E/SO (cùng hình factor và footprint) — khác nhau ở ADC, Core Architecture, Instruction Set, Package, Program Memory (Flash).
PIC18F2431T-E/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F2439-E/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F4431T-E/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ12MC202T-E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ12MC202-E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2423T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2439T-E/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18F (8-bit Harvard RISC) |
| Program Memory (Flash) | 12 KB (6K x 16) |
| Maximum CPU Frequency | 40 MHz |
| Operating Voltage (Vdd) | 5 V (typical industrial range) |
| Hộp | 28-pin SOIC (SO, 0.295 inch / 7.50 mm body width) |
| Kiểu lắp đặt | Surface Mount |
| Temperature Grade (E suffix) | -40C to +125C (extended, automotive-grade) |
| Temperature Grade (I suffix, related parts) | -40C to +85C (industrial) |
| ADC | 10-bit successive approximation |
| Power Control PWM Module | Up to 4 PWM outputs (PIC18F2439 motor control kernel) |
| Capture/Compare/PWM (CCP) | 1 enhanced CCP module |
| Communication | Enhanced USART, I2C/SPI (SSP) |
| Instruction Set | PIC18F (77 instructions, 16-bit opcode, hardware multiplier) |
| ICSP Programming | In-Circuit Serial Programming supported |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F2439T-E/SO
| Chân 1 | MCLR/RE3 — Master Clear (reset) input or digital input RE3 |
| Chân 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Chân 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| Chân 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Chân 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SSP slave select |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1/RA7 — Crystal oscillator input / PORTA bit 7 |
| Chân 10 | OSC2/RA6 — Crystal oscillator output / PORTA bit 6 |
| Chân 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock |
| Chân 12 | RC1/T1OSI — PORTC bit 1 / Timer1 oscillator input |
| Chân 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 output |
| Chân 14 | RC3 — PORTC bit 3 |
| Chân 15 | RC4 — PORTC bit 4 |
| Chân 16 | RC5 — PORTC bit 5 |
| Chân 17 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Chân 18 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage |
| Chân 21 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Chân 22 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Chân 23 | RB2 — PORTB bit 2 |
| Chân 24 | RB3 — PORTB bit 3 |
| Chân 25 | RB4 — PORTB bit 4 |
| Chân 26 | RB5 — PORTB bit 5 |
| Chân 27 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 28 | RB7/PGD — PORTB bit 7 / ICSP data |
Ứng dụng tiêu biểu
PIC18F2439T-E/SO phù hợp cho 6 Áp dụngs: Single-Phase Induction Motor Control, HVAC Blower and Fan Drives, White Goods and Appliance Control, Low-Cost BLDC Driver Boards, Industrial Sensor Signal Conditioning, Pump and Compressor Control.
Single-Phase Induction Motor Control
The PIC18F2439T-E/SO is purpose-built for single-phase induction motor control. Its dedicated Power Control PWM module delivers up to four complementary outputs with programmable dead-time and fault-input shutdown, eliminating an external PWM controller on fan, pump, and compressor drives. At 40 MHz the device produces 10 MIPS of compute throughput, sufficient for closed-loop V/Hz or vector-control firmware on appliances such as ceiling fans, range hoods, and washing-machine drain pumps. The 10-bit ADC with auto-sampling handles shunt-current and back-EMF feedback at PWM rates up to 25 kHz without CPU intervention. Extended -40C to +125C operation supports under-hood and high-ambient industrial cabinets, while 12 KB Flash accommodates state-machine control plus diagnostic logging in the same firmware image.
Được đề xuất
HVAC Blower and Fan Drives
HVAC blower and ceiling fan drives benefit from the PIC18F2439T-E/SO's integrated motor-control PWM and 10-bit ADC in a 28-pin SOIC. Designers can implement variable-speed profiles with closed-loop RPM feedback by feeding a Hall sensor or back-EMF signal into the ADC and modulating PWM duty cycle in firmware. The PIC18F2439T-E/SO's 40 MHz CPU provides ample headroom for PI control loops and soft-start ramps, while the extended -40C to +125C temperature grade withstands attic and outdoor-cabinet conditions. With 12 KB of Flash the firmware can store multiple speed presets, fault-history logs, and AC-line synchronization tables - features that traditionally required a separate EEPROM. The 28-pin SOIC footprint is friendly to wave-soldered and reflow processes for high-volume appliance production.
Được đề xuất
White Goods and Appliance Control
The PIC18F2439T-E/SO fits dishwasher, washer, and refrigerator control boards where a single MCU must orchestrate motor drive plus user-interface and sensor multiplexing. Its Capture/Compare/PWM (CCP) module can time user-button debounce or zero-cross detection, while the enhanced USART links to a display driver or wireless module. The 12 KB Flash budget comfortably holds IEC 60730 Class B self-test routines that white-goods safety standards increasingly require, and the 10-bit ADC reads thermistor, pressure, and level inputs. Extended -40C to +125C operation covers proximity to compressors and heating elements where ambient temperature regularly exceeds 100C. The 28-pin SOIC and tape-and-reel format suit high-volume SMT lines.
Được đề xuất
Low-Cost BLDC Driver Boards
The PIC18F2439T-E/SO can drive low-cost brushless DC motors in sensorless or Hall-sensor configurations when paired with discrete gate drivers. Although optimized for single-phase induction, the Power Control PWM module still generates the six-step or sinusoidal commutation patterns common in BLDC firmware. At 40 MHz the device runs commutation state machines plus speed PI loops, and the 10-bit ADC samples back-EMF on a freewheeling phase at each PWM cycle. The 28-pin SOIC footprint is compatible with hobbyist and OEM driver boards, and tape-and-reel packaging suits automated assembly. Extended -40C to +125C operation handles outdoor and tool-cabinet environments, while 12 KB Flash holds field-orientation or trapezoidal commutation libraries plus fault handling.
Được đề xuất
Industrial Sensor Signal Conditioning
General industrial sensor-conditioning nodes use the PIC18F2439T-E/SO when local PWM excitation and 10-bit ADC capture are needed in a single chip. The PWM module generates excitation waveforms for strain-gauge bridges, LVDT primaries, and ultrasonic transducers; the on-chip ADC digitizes return signals at up to ~30 kS/s with deterministic timing tied to PWM edges. Enhanced USART and SSP (I2C/SPI) interfaces forward conditioned data to a host PLC or wireless module. The -40C to +125C temperature grade supports outdoor and factory-floor deployments without additional thermal conditioning, and 12 KB Flash holds calibration tables, linearization polynomials, and Modbus or CAN-friendly framing routines.
Được đề xuất
Pump and Compressor Control
Water pumps, oil pumps, and small compressors benefit from the PIC18F2439T-E/SO's combined motor-control PWM, ADC, and over-temperature grade. The device can read pressure-transducer feedback, modulate PWM duty to maintain a setpoint, and execute soft-start routines that reduce inrush current on single-phase AC lines. Extended -40C to +125C operation is essential in pump cabinets where motor heat elevates ambient temperature, and 12 KB Flash holds protection logic for dry-run, over-pressure, and locked-rotor conditions without external components. The 28-pin SOIC package is the de facto footprint for HVAC and pump control PCBs, simplifying sourcing and second-sourcing with the PIC18F2431-E/SO and PIC18F4431-E/SO family siblings.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F2439T-E/SO — 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 | PIC18F2431T-E/SO | PIC18F2439-E/SO | PIC18F4431T-E/SO | DSPIC33FJ12MC202T-E/SO | DSPIC33FJ12MC202-E/SO | PIC18F2423T-I/SO |
|---|---|---|---|---|---|---|---|
| Package | 28-pin SOIC (SO, 7.50 mm) | 28-pin SOIC (SO, 7.50 mm) - same | 28-pin SOIC (SO, 7.50 mm) - same | 28-pin SOIC (SO, 7.50 mm) - same | 28-pin SOIC (SO, 7.50 mm) - same | 28-pin SOIC (SO, 7.50 mm) - same | 28-pin SOIC (SO, 7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | PIC18F (8-bit) | PIC18F (8-bit) | PIC18F (8-bit) | PIC18F (8-bit) | dsPIC33 (16-bit) | dsPIC33 (16-bit) | PIC18F (8-bit) |
| Program Memory (Flash) | 12 KB | 8 KB | 12 KB | 16 KB | 12 KB | 12 KB | 16 KB |
| Maximum CPU Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MIPS | 40 MIPS | 40 MHz |
| Temperature Grade (E suffix) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +85C (industrial) |
| Power Control PWM Module | Yes (4 outputs) | Yes (4 outputs) | Yes (4 outputs) | Yes (8 outputs) | Yes (motor control PWM) | Yes (motor control PWM) | Standard CCP only |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Packaging Format | Tape & Reel (T) | Tape & Reel (T) | Tube | Tape & Reel (T) | Tape & Reel (T) | Tube | Tape & Reel (T) |
Bảo phân biệt quan trọng
- Dedicated Power Control PWM module with up to 4 outputs (vsPIC18F2423T-I/SO)
- Extended -40C to +125C temperature grade standard (vsPIC18F2423T-I/SO)
- Drop-in 28-pin SOIC footprint with verified pin-compatibility across family (vsDSPIC33FJ12MC202T-E/SO)
Ghi chú thiết kế
The PIC18F2439T-E/SO operates from a single 4.2V-5.5V supply on VDD with VSS as ground. Place a 100 nF decoupling capacitor within 5 mm of each VDD pin and a bulk 10 uF tantalum or ceramic on the main VDD rail; the AVDD (if tied out separately on the chosen package variant) requires its own 100 nF low-ESR capacitor to keep ADC reference noise below 1 LSB at full sampling rate.
Estimated: At sustained 40 MHz CPU clock, the PIC18F2439T-E/SO core current draw reaches approximately 16 mA (per Microchip PIC18F2439 datasheet DC characteristics), producing ~80 mW dissipation in the 28-pin SOIC package with theta_JA near 80 C/W on a 2-layer board. Under -40C to +125C ambient the junction-to-ambient temperature rise stays well below the 150C maximum, but a ground copper pour is still recommended to spread heat.
Do not skip the configuration-bit settings for the oscillator and watchdog; leaving the watchdog disabled in a motor-control application exposes the firmware to lockup if PWM interrupts fail. The ICSP pins RB6/PGC and RB7/PGD must not be tied to low-impedance loads during in-circuit programming or else programmer drive contention will reset the device. Always insert 4.7 kohm pull-ups on SDA/SCL for I2C and verify the ADC acquisition time is set above 1.4 us when source impedance exceeds 2.5 kohm.
Keep the analog AVSS/AVDD pair (when brought out on this SOIC variant) routed as a Kelvin star directly back to the regulator ground, separate from the digital switching return path of the PWM outputs. Route the crystal traces between OSC1 and OSC2 within 5 mm of the package, surrounded by a ground guard ring, and never cross them with the PWM output traces which carry dV/dt above 1 V/ns.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page; AEC-Q100 qualification not formally listed on distributor pages despite the E (extended) temperature suffix, so automotive OEM projects should request the AEC-Q100 letter from Microchip directly.
