PIC32MX440F512HT-80I/MR - 80MHz 32-bit MCU 512KB Flash | Microchip
MPN: PIC32MX440F512HT-80I/MR ✓ Hoạt độngPIC32MX440F512HT-80I/MR Tóm tắt
A PIC32MX microcontroller is a 32-bit MIPS-based MCU from Microchip that bridges 8/16-bit PIC designs and full 32-bit Cortex-class processing. Within the broader taxonomy, it belongs to microcontrollers > 32-bit microcontrollers > MIPS RISC microcontrollers > embedded processors > semiconductors. The PIC32MX family uses the MIPS32 M4K core with single-cycle multiply/divide hardware, a 5-stage pipeline, and a 32-bit instruction set compatible with the MIPS32 ISA, while retaining peripheral IP and toolchain familiarity from earlier PIC microcontrollers.
Key features of the PIC32MX440F512HT-80I/MR include 80 MHz maximum CPU clock, 512 KB Flash with 32 KB RAM, USB 2.0 full-speed On-The-Go, a 16-channel 10-bit ADC with 1 Msps conversion, four 16-bit timers/counters, five PWM channels with input capture, two I2C and two UART/I2S peripherals, and parallel master port (PMP) for external bus expansion. The 64-pin VQFN package provides 53 digital I/O pins plus dedicated oscillator, programming/debug (PGECx/PGEDx), and supply pins. The "T" suffix denotes tape-and-reel packaging; the "I" suffix denotes industrial temperature grade.
Architecturally, the PIC32MX440 integrates the M4K CPU, prefetch cache, dual-bank Flash with runtime self-programmability, DMA controller, and peripheral bus bridge on a single die. The 80 MHz core delivers 1.56 DMIPS/MHz and supports code execution directly from Flash via a 16-entry instruction cache, easing real-time control loops. The integrated USB-OTG PHY removes the need for an external transceiver in USB device/host/OTG designs.
Typical applications include USB peripherals (HID, CDC, MSD, audio), industrial control HMI, low-cost graphical LCD interfaces, home automation gateways, and embedded data loggers. The USB-OTG integration suits the part to connected-device designs where a discrete USB PHY would inflate BOM cost.
When designing with this device, pay attention to decoupling (100 nF + bulk capacitor at each VDD pin pair), trace length matching for the USB DP/DM differential pair (90 ohms), and adequate thermal relief on the exposed pad of the VQFN. The ICSP pins (PGECx/PGEDx) should be brought to a header for in-circuit programming.
This page synthesizes distributor pricing, drop-in package-matched alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX440F512HT-80I/MR — 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 PIC32MX440F512HT-80I/MR (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, DMA Channels, Program Memory (Flash).
PIC32MX440F512H-80I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX440F512HT-80I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX440F256HT-80I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX340F512HT-80I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX460F512LT-80I/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX440F512HT-80I/MR Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 80 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| Data Memory (SRAM) | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| I/O Pins | 53 |
| ADC | 10-bit, 16-channel, up to 1 Msps |
| USB | USB 2.0 Full-Speed On-The-Go (OTG) |
| Timers | 5 x 16-bit |
| PWM Channels | 5 (with Input Capture) |
| UART | 2 |
| I2C | 2 |
| SPI | 2 |
| DMA | Yes |
| Parallel Master Port (PMP) | Yes |
| Hộp | 64-VQFN (9x9 mm), tape and reel |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX440F512HT-80I/MR
| Chân 1 | RG15 — General purpose I/O |
| Chân 2 | VDD — Positive supply voltage |
| Chân 3 | RP12/RD12 — General purpose I/O / remappable peripheral |
| Chân 4 | RA4 — General purpose I/O |
| Chân 5 | RA5 — General purpose I/O |
| Chân 6 | VSS — Ground reference |
| Chân 7 | OSC2/CLKO/RC15 — Oscillator output / general purpose I/O |
| Chân 8 | OSC1/CLKI/RC12 — Oscillator input / general purpose I/O |
| Chân 9 | PGED1/RB6 — ICSP data / general purpose I/O |
| Chân 10 | PGEC1/RB7 — ICSP clock / general purpose I/O |
| Chân 11 | AVDD — Analog positive supply |
| Chân 12 | AVSS — Analog ground |
| Chân 13 | VBUS — USB VBUS detect |
| Chân 14 | D- — USB data minus |
| Chân 15 | D+ — USB data plus |
| Chân 16 | RB0 — General purpose I/O / programming |
| Chân 17 | RB1 — General purpose I/O / programming |
| Chân 18 | RB2 — General purpose I/O |
| Chân 19 | RB3 — General purpose I/O |
| Chân 20 | RB4 — General purpose I/O |
| Chân 21 | RB5 — General purpose I/O |
| Chân 22 | VSS — Ground reference |
| Chân 23 | VDD — Positive supply voltage |
| Chân 24 | RB8 — General purpose I/O |
| Chân 25 | RB9 — General purpose I/O |
| Chân 26 | RB10 — General purpose I/O |
| Chân 27 | RB11 — General purpose I/O |
| Chân 28 | RB12 — General purpose I/O |
| Chân 29 | RB13 — General purpose I/O |
| Chân 30 | RB14 — General purpose I/O |
| Chân 31 | RB15 — General purpose I/O |
| Chân 32 | VSS — Ground reference |
| Chân 33 | VDD — Positive supply voltage |
| Chân 34 | RD0 — General purpose I/O |
| Chân 35 | RD1 — General purpose I/O |
| Chân 36 | RD2 — General purpose I/O |
| Chân 37 | RD3 — General purpose I/O |
| Chân 38 | RD4 — General purpose I/O |
| Chân 39 | RD5 — General purpose I/O |
| Chân 40 | RD6 — General purpose I/O |
| Chân 41 | RD7 — General purpose I/O |
| Chân 42 | VSS — Ground reference |
| Chân 43 | VDD — Positive supply voltage |
| Chân 44 | RC1 — General purpose I/O |
| Chân 45 | RC2 — General purpose I/O |
| Chân 46 | RC3 — General purpose I/O |
| Chân 47 | RC4 — General purpose I/O |
| Chân 48 | TDI/RG13 — JTAG data in / general purpose I/O |
| Chân 49 | TCK/RC14 — JTAG clock / general purpose I/O |
| Chân 50 | TDO/RG12 — JTAG data out / general purpose I/O |
| Chân 51 | TMS/RG14 — JTAG mode select / general purpose I/O |
| Chân 52 | TRST/RG0 — JTAG reset / general purpose I/O |
| Chân 53 | VSS — Ground reference |
| Chân 54 | VDD — Positive supply voltage |
| Chân 55 | RG1 — General purpose I/O |
| Chân 56 | RG2 — General purpose I/O |
| Chân 57 | RG3 — General purpose I/O |
| Chân 58 | RC13 — General purpose I/O |
| Chân 59 | RF0 — General purpose I/O |
| Chân 60 | RF1 — General purpose I/O |
| Chân 61 | RF2 — General purpose I/O |
| Chân 62 | RF3 — General purpose I/O |
| Chân 63 | RF4 — General purpose I/O |
| Chân 64 | RF5 — General purpose I/O |
Ứng dụng tiêu biểu
PIC32MX440F512HT-80I/MR phù hợp cho 6 Áp dụngs: USB HID Peripheral Devices, Industrial Control HMI Panels, USB Audio Device (Headset / DAC), Home Automation Gateway, Embedded Data Logger, Low-Cost Graphical LCD Interface.
USB HID Peripheral Devices
The PIC32MX440F512HT-80I/MR's integrated USB 2.0 full-speed On-The-Go controller and on-chip transceiver remove the need for an external USB PHY, lowering BOM cost for USB HID peripherals such as keyboards, mice, jog wheels, and custom input devices. The 80 MHz MIPS32 M4K core executes a USB HID stack comfortably with 512 KB Flash for class descriptors and 32 KB SRAM for HID report buffers, leaving headroom for application logic. Designers should route DP/DM as a 90-ohm differential pair and place a 1 MOhm pull-up on D+ for full-speed enumeration. The PIC32's DMA controller can service USB endpoints in the background, keeping interrupt latency low.
Được đề xuất
Industrial Control HMI Panels
The PIC32MX440F512HT-80I/MR fits industrial HMI panels requiring USB connectivity for firmware updates and a parallel master port (PMP) to drive TFT LCDs or character displays. The 16-channel 10-bit ADC reads front-panel potentiometers and sensors, while five PWM channels drive backlight dimming, buzzers, and indicator LEDs. With 53 GPIO and a 64-VQFN (9x9) footprint, the device sits beside power and touch circuitry without crowding the PCB. Industrial-grade -40C to +85C operation supports factory-floor deployment, and the 32 KB SRAM comfortably buffers display frame data.
Được đề xuất
USB Audio Device (Headset / DAC)
The PIC32MX440F512HT-80I/MR's USB-OTG plus dual I2S peripherals handle USB audio class 1.0 designs at up to 48 kHz/16-bit, sufficient for USB headsets, USB microphones, and basic DAC interfaces. The DMA controller offloads audio sample movement from the CPU, freeing the 80 MHz core to run a small UI or DSP filter. The 32 KB SRAM buffers audio packets while 512 KB Flash stores USB descriptors, class drivers, and application code. For 24-bit/96 kHz pro-audio, migrate to PIC32MX470 or PIC32MZ with more RAM and a faster core.
Được đề xuất
Home Automation Gateway
The PIC32MX440F512HT-80I/MR's USB-OTG enables Wi-Fi or Ethernet dongle connectivity, while its two UART, two I2C, and two SPI peripherals interface to sub-GHz radios, sensors, and Zigbee or Z-Wave bridges. The 512 KB Flash stores the gateway protocol stack (MQTT, Modbus, etc.), and 32 KB RAM buffers network packets. Industrial temperature range supports installation in utility rooms and basements. The 53 GPIO expand to control relays and read switch inputs, making the part a flexible home-automation controller.
Được đề xuất
Embedded Data Logger
The PIC32MX440F512HT-80I/MR is well suited to battery-powered data loggers that record sensor data to SD cards or USB sticks. The 16-channel 10-bit ADC at 1 Msps captures fast analog events, while DMA streams samples to SRAM. The integrated USB-OTG enables plug-and-play file retrieval when the user connects the device to a PC. The 80 MHz core leaves enough cycles for FAT32 file system management, while 512 KB Flash holds firmware and configuration. Low-power sleep modes (down to microamp currents) extend battery life between logging sessions.
Được đề xuất
Low-Cost Graphical LCD Interface
The PIC32MX440F512HT-80I/MR's parallel master port (PMP) drives 8/16-bit TFT LCDs and graphic OLEDs directly, eliminating external display controller ICs. The 80 MHz core refreshes QVGA (320x240) panels with 16-bit color at 30+ fps using simple frame buffer logic in 32 KB SRAM. Five PWM channels provide backlight control, touch-sensor excitation, and status LEDs. Designers pair the PIC32 with an external SPI Flash for full-screen assets, using one of the two SPI peripherals. The 64-VQFN package keeps the display-control PCB compact.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX440F512HT-80I/MR — 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 | PIC32MX440F512H-80I/MR | PIC32MX440F512HT-80I/PT | PIC32MX440F256HT-80I/MR | PIC32MX340F512HT-80I/MR | PIC32MX460F512LT-80I/MR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (9x9) | 64-VQFN (9x9) - same | 64-TQFP (10x10) - different footprint, same pinout | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same |
| Core Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 256 KB | 512 KB | 512 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB OTG | Yes | Yes | Yes | Yes | No | Yes |
| Ethernet MAC | No | No | No | No | No | Yes |
| CAN | No | No | No | No | No | Yes |
| Temperature Range | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Unit Price (qty 1) | $9.50 | $9.50 (approx) | $9.50 (approx) | $8.40 (approx) | $8.80 (approx) | $10.20 (approx) |
Bảo phân biệt quan trọng
- Integrated USB-OTG with on-chip transceiver (vsPIC32MX340F512HT-80I/MR)
- Higher Flash density for complex USB stacks (vsPIC32MX440F256HT-80I/MR)
- Easier hand-soldering alternative available (vsPIC32MX440F512HT-80I/PT)
Ghi chú thiết kế
The PIC32MX440F512HT-80I/MR requires decoupling on every VDD/VSS pin pair, plus an additional 10 uF bulk capacitor near the IC. Place a 100 nF ceramic capacitor within 2 mm of each VDD pin to suppress switching noise from the internal core logic and PLL. The AVDD/AVSS pair serving the 10-bit ADC deserves its own low-pass filter (10 ohm + 100 nF) to keep ADC readings clean; sharing the digital VDD trace can inject switching noise.
Route the USB DP/DM pair as a 90-ohm differential impedance, matched within 150 mil length mismatch. Place the ESD protection array (e.g. USBLC6-2SC6) within 3 mm of the USB connector, and route the VBUS line to pin 13 via a divider to feed the internal USB transceiver's voltage detector. The 64-VQFN exposed thermal pad must be soldered to a continuous ground copper pour with multiple thermal vias to meet the datasheet thermal resistance and provide mechanical strength.
Do not skip the configuration bits (fuses) programming step - the PIC32MX440 ships with all analog and digital pins disabled by default. Always set the JTAG/Trace pin mux carefully: pins RG13/RC14/RG12/RG14 default to JTAG functions and must be reassigned via CFGCON if used as GPIO. Lastly, leave at least one ICSP header footprint on the prototype board even for production designs - field firmware updates require the PGECx/PGEDx pins to be accessible.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified (PIC32MX does not offer automotive Q100 variants).
