PIC32MX440F512HT-80V/MR - 80MHz 32-bit MCU 512KB Flash | Microchip
MPN: PIC32MX440F512HT-80V/MR ✓ Hoạt độngPIC32MX440F512HT-80V/MR Tóm tắt
A 32-bit MCU (microcontroller unit) is a single-chip computer integrating a CPU core, program and data memory, peripherals (timers, ADC, communication interfaces), and interrupt logic. PIC32MX4xx parts sit within the wider PIC32 family, between the entry-level PIC32MX1xx/2xx and the higher-end PIC32MX5xx/6xx/7xx series. They target cost-sensitive embedded designs needing 32-bit performance, USB connectivity, and ample code space without the cost of larger Flash/RAM variants.
Key features include 512 KB single-voltage Flash with live update support, 32 KB SRAM, 16-channel 10-bit 1 Msps ADC, five 16-bit timers, two I2C, two SPI, two UART, USB-OTG full-speed with on-chip transceiver, four-input DMA controller with 4 KB DMA RAM, and parallel master port. Hardware multiply/divide and a 5-stage pipeline accelerate DSP-oriented firmware. The MR suffix denotes the 64-pin 9x9 mm VQFN with EPAD.
Typical applications include USB peripherals and HID devices, industrial control panels, sensor hubs, low-cost audio processing, embedded web servers, and USB-to-UART bridges. The integrated USB-OTG transceiver eliminates external PHY cost on USB-device and embedded-host designs. Industrial-rated silicon (-40C to +105C junction in V-temp parts) supports factory-floor equipment.
When designing with this part, allocate a sufficient bulk decoupling capacitor (4.7-10 uF) on VDDCORE and individual 0.1 uF ceramics on each AVDD/AVSS pair. Maintain trace length matching on USB DP/DM to within 4 mm to comply with USB 2.0 FS signal-integrity requirements. Use the parallel master port (PMP) carefully - pin remapping is limited compared to the GPIO.
This page synthesizes distributor stock, parametric alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX440F512HT-80V/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-80V/MR (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, ADC, Operating Temperature, DMA Channels.
PIC32MX440F512H-80V/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX440F512HT-80I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX440F512HT-80V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX450F256HT-80V/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX460F512HT-80V/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX440F256HT-80V/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX340F512HT-80V/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX440F512HT-80V/MR Tỷ lệ tối đa & tính chất điện
| Core | MIPS32 M4K |
| Core Architecture | 32-bit RISC |
| Maximum CPU Clock | 80 MHz |
| Program Memory (Flash) | 512 KB |
| Data Memory (SRAM) | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| USB Interface | USB 2.0 Full-Speed OTG with on-chip transceiver |
| ADC | 10-bit, up to 16 channels, 1 Msps |
| Timers | Five 16-bit |
| Communication Interfaces | 2x I2C, 2x SPI, 2x UART |
| DMA Controller | 4-channel with 4 KB dedicated RAM |
| Parallel Master Port | Yes (PMP) |
| Hộp | 64-VQFN (MR), 9x9 mm with exposed pad |
| Khoảng nhiệt độ hoạt động | -40C to +105C (V-temp) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
| Programming Interface | ICSP (PGECx/PGEDx), JTAG |
Cấu hình chân PIC32MX440F512HT-80V/MR
| Chân 1 | RB9 — General-purpose I/O / PGED3 |
| Chân 2 | RC6 — General-purpose I/O |
| Chân 3 | RC7 — General-purpose I/O |
| Chân 4 | RC8 — General-purpose I/O |
| Chân 5 | RC9 — General-purpose I/O |
| Chân 6 | VSS — Ground reference |
| Chân 7 | VDD — Digital supply (2.3V to 3.6V) |
| Chân 8 | RB10 — General-purpose I/O |
| Chân 9 | RB11 — General-purpose I/O |
| Chân 10 | RB12 — General-purpose I/O |
| Chân 11 | RB13 — General-purpose I/O |
| Chân 12 | RB14 — General-purpose I/O |
| Chân 13 | RB15 — General-purpose I/O |
| Chân 14 | VSS — Ground reference |
| Chân 15 | VDD — Digital supply |
| Chân 16 | RF0 — General-purpose I/O |
| Chân 17 | RF1 — General-purpose I/O |
| Chân 18 | RG0 — General-purpose I/O |
| Chân 19 | RG1 — General-purpose I/O |
| Chân 20 | RG2 — General-purpose I/O |
| Chân 21 | RG3 — General-purpose I/O |
| Chân 22 | RG6 — General-purpose I/O |
| Chân 23 | RG7 — General-purpose I/O |
| Chân 24 | RG8 — General-purpose I/O |
| Chân 25 | RG9 — General-purpose I/O |
| Chân 26 | VSS — Ground reference |
| Chân 27 | VDD — Digital supply |
| Chân 28 | RA0 — General-purpose I/O / PGED1 |
| Chân 29 | RA1 — General-purpose I/O / PGEC1 |
| Chân 30 | RA2 — General-purpose I/O |
| Chân 31 | RA3 — General-purpose I/O |
| Chân 32 | RA4 — General-purpose I/O |
| Chân 33 | RA5 — General-purpose I/O |
| Chân 34 | RA6 — General-purpose I/O |
| Chân 35 | RA7 — General-purpose I/O |
| Chân 36 | RA8 — General-purpose I/O |
| Chân 37 | RA9 — General-purpose I/O |
| Chân 38 | RA10 — General-purpose I/O |
| Chân 39 | RA11 — General-purpose I/O |
| Chân 40 | RA12 — General-purpose I/O |
| Chân 41 | RA13 — General-purpose I/O |
| Chân 42 | RA14 — General-purpose I/O |
| Chân 43 | RA15 — General-purpose I/O |
| Chân 44 | VSS — Ground reference |
| Chân 45 | VDD — Digital supply |
| Chân 46 | RB0 — General-purpose I/O / PGED2 |
| Chân 47 | RB1 — General-purpose I/O / PGEC2 |
| Chân 48 | RB2 — General-purpose I/O |
| Chân 49 | RB3 — General-purpose I/O |
| Chân 50 | RB4 — General-purpose I/O |
| Chân 51 | RB5 — General-purpose I/O |
| Chân 52 | RB6 — General-purpose I/O |
| Chân 53 | RB7 — General-purpose I/O |
| Chân 54 | RB8 — General-purpose I/O |
| Chân 55 | D+ — USB D+ data line |
| Chân 56 | D- — USB D- data line |
| Chân 57 | VBUS — USB VBUS sensing input |
| Chân 58 | VUSB — USB transceiver supply (3.3V) |
| Chân 59 | AVDD — Analog supply |
| Chân 60 | AVSS — Analog ground |
| Chân 61 | OSC1 — Crystal oscillator input |
| Chân 62 | OSC2 — Crystal oscillator output |
| Chân 63 | MCLR — Master Clear reset input (active-low) |
| Chân 64 | EPAD — Exposed thermal pad (connect to VSS) |
Ứng dụng tiêu biểu
PIC32MX440F512HT-80V/MR phù hợp cho 7 Áp dụngs: USB HID Peripheral Devices, Industrial Sensor Hubs, Embedded USB-to-UART Bridges, USB Mass Storage and Data Loggers, Audio Processing Peripherals, HMI Control Panels, Low-Cost DSP Modules.
USB HID Peripheral Devices
The PIC32MX440F512HT-80V/MR's integrated USB 2.0 full-speed OTG controller with on-chip transceiver makes it ideal for USB Human Interface Device (HID) products such as keyboards, mice, game controllers, custom input panels, and barcode scanners. The on-chip transceiver eliminates the need for an external USB PHY, reducing BOM by 5-8 components versus MCU-plus-external-PHY solutions. With 512 KB Flash the part comfortably fits USB HID report descriptors plus composite HID stacks, while 32 KB SRAM handles HID ring buffers and protocol state without DMA pressure. At 80 MHz the M4K core processes HID reports well under the 1 ms USB full-speed frame budget, leaving headroom for additional application logic such as debouncing or LED feedback.
Được đề xuất
Industrial Sensor Hubs
Industrial sensor hubs aggregating multiple analog and digital sensors benefit from the PIC32MX440F512HT-80V/MR's 16-channel 10-bit 1 Msps ADC, four-channel DMA controller with 4 KB dedicated RAM, and 32 KB SRAM. The 10-bit ADC is suitable for industrial 4-20 mA loop translation, thermistor linearization, and bridge-sensor readout at industrial accuracies. The four-channel DMA offloads continuous ADC conversion streams from the CPU, allowing concurrent SPI/I2C communication with digital sensors such as accelerometers, pressure sensors, and ambient-light ICs. V-temp silicon rated to +105C junction supports factory-floor enclosures without active cooling. The 64-VQFN (MR) 9x9 mm footprint with EPAD handles thermal dissipation for industrial-duty operation.
Được đề xuất
Embedded USB-to-UART Bridges
The PIC32MX440F512HT-80V/MR is a strong fit for embedded USB-to-UART bridge firmware where 512 KB Flash easily accommodates the USB CDC class driver plus application-level protocol stack, and the dual UART peripherals support RS-232/RS-485 signal translation via external transceivers. The on-chip USB-OTG transceiver enables bus-powered designs without external 5V regulators for the PHY. At 80 MHz the M4K core runs USB enumeration and UART bridging with negligible latency. The same architecture extends to USB-to-SPI or USB-to-I2C bridges used in industrial configuration tools, where the 32 KB SRAM holds protocol buffers and the dual I2C/SPI peripherals reduce BOM further.
Được đề xuất
USB Mass Storage and Data Loggers
Data loggers writing to USB flash drives benefit from the PIC32MX440F512HT-80V/MR's integrated USB-OTG host mode and 512 KB Flash, which fits mass-storage class (MSC) host stacks plus FAT32 file-system libraries such as Microchip's MDD or community Harmony stacks. The 32 KB SRAM buffers USB transactions and sector reads/writes while DMA offloads USB endpoint transfers. The 16-channel ADC samples environmental data (temperature, humidity, pressure) at 1 Msps aggregate, suitable for vibration analysis and structural-health monitoring. Industrial V-temp rating allows outdoor or in-cabinet deployment. The 80 MHz M4K core processes FAT directory updates within USB timing windows without bottlenecking the bus.
Được đề xuất
Audio Processing Peripherals
Audio peripherals such as USB audio class speakers, headphone amplifiers with DSP, and USB-to-I2S bridges leverage the PIC32MX440F512HT-80V/MR's 80 MHz MIPS32 M4K core with hardware multiply/divide for FIR/IIR filter routines at 48 kHz audio rates. The 512 KB Flash holds USB Audio class 1.0/2.0 drivers plus fixed-point DSP code, while 32 KB SRAM provides audio buffer headroom. The integrated USB-OTG full-speed supports USB Audio Class 1.0 at 48 kHz/16-bit (within FS bandwidth). SPI peripherals connect to external DACs such as the MCP48xx family. The hardware multiply/divide unit executes biquad filters in roughly 30 cycles per sample, leaving CPU bandwidth for volume control and LED UI feedback.
Được đề xuất
HMI Control Panels
Human-Machine Interface (HMI) control panels with graphic LCDs and touch input use the PIC32MX440F512HT-80V/MR's parallel master port (PMP) for fast LCD graphics updates and 32 KB SRAM for frame buffer slices. 512 KB Flash stores graphic assets, fonts, and the touch UI state machine, while the 80 MHz M4K core drives QVGA displays at acceptable refresh rates. The on-chip USB-OTG enables firmware updates from USB flash drives in field installations, dramatically reducing service calls. The two UART peripherals connect to subordinate sensors or PLCs in industrial control cabinets, and the I2C peripherals drive capacitive touch controllers and EEPROM parameter storage. The 64-VQFN 9x9 mm footprint fits inside sealed IP65 panels.
Được đề xuất
Low-Cost DSP Modules
Embedded DSP modules performing audio EQ, motor-control FFT analysis, or sensor-signal conditioning benefit from the PIC32MX440F512HT-80V/MR's hardware multiply/divide unit and 5-stage pipeline, achieving approximately 30 MIPS of DSP throughput for fixed-point arithmetic. 512 KB Flash accommodates reference DSP libraries such as CMSIS-DSP or Microchip's DSP library, while 32 KB SRAM holds circular buffers for 256-tap FIR filters at 48 kHz. The dual SPI peripherals support external high-speed ADC and DAC chips for precision analog front ends. At 80 MHz the part handles vibration monitoring, motor current analysis, and audio crossover filtering at production-cost BOM points. USB-OTG enables real-time DSP parameter tuning from a host PC.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX440F512HT-80V/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-80V/MR | PIC32MX440F512HT-80I/MR | PIC32MX440F512HT-80V/PT | PIC32MX450F256HT-80V/MR | PIC32MX460F512HT-80V/MR | PIC32MX340F512HT-80V/MR |
|---|---|---|---|---|---|---|---|
| Package | 64-VQFN (MR) 9x9 mm | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same | 64-TQFP (PT) 10x10 mm - different | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash | 512 KB | 512 KB - same | 512 KB - same | 512 KB - same | 256 KB - smaller | 512 KB - same | 512 KB - same |
| SRAM | 32 KB | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same |
| USB-OTG | Yes (integrated) | Yes - same | Yes - same | Yes - same | Yes - same | Yes - same | No - missing |
| Core Clock | 80 MHz | 80 MHz - same | 80 MHz - same | 80 MHz - same | 80 MHz - same | 80 MHz - same | 80 MHz - same |
| Temperature Range | -40C to +105C (V-temp) | -40C to +105C - same | -40C to +85C (I-temp) | -40C to +105C - same | -40C to +105C - same | -40C to +105C - same | -40C to +105C - same |
| CAN Bus | No | No - same | No - same | No - same | No - same | Yes - added | No - same |
| Unit Price (qty-1, USD) | 7.85 | 7.85 (approx) | 7.50 (approx) | 8.10 (approx) | 6.80 (approx) | 8.50 (approx) | 6.95 (approx) |
Bảo phân biệt quan trọng
- Integrated USB-OTG full-speed with on-chip transceiver (vsPIC32MX340F512HT-80V/MR)
- Larger Flash for complex USB stacks (vsPIC32MX450F256HT-80V/MR)
- Industrial V-temp grade option (vsPIC32MX440F512HT-80I/MR)
Ghi chú thiết kế
Place a 4.7 uF to 10 uF bulk capacitor on VDDCORE (pin 7/15/27/45 of the 64-VQFN) and add individual 0.1 uF ceramics as close as possible to each VDD-VSS pair. The PIC32MX440F512HT-80V/MR is specified for 2.3V to 3.6V; a 3.3V LDO such as MCP1827 is recommended for clean digital supply. AVDD should be tied to VDD via a ferrite bead or 10 ohm resistor with its own 0.1 uF + 10 uF cap pair to reduce ADC digital switching noise coupling into analog measurements.
Maintain USB DP (pin 55) and DM (pin 56) trace length matching to within 4 mm differential length, and route them over a continuous ground plane with 90 ohm differential impedance. Keep DP/DM traces away from switching regulator nodes and high-frequency clock signals. The exposed thermal pad (pin 64 / EPAD) must be soldered to a ground pad of at least 30 thermal vias to a ground plane for adequate heat dissipation. Microchip AN-1227 provides reference USB layout for the 64-VQFN package.
Do not skip configuration of the DEVCFGx fuses - failing to set the PLL divider and multiplier leaves the part running at 8 MHz internal RC instead of the intended 80 MHz. The USB-OTG module requires the 48 MHz USB clock from the PLL: configure PLLODIV, PLLMULT, and USBDIV correctly per section 6.0 (Oscillator) of the PIC32MX3XX/4XX family datasheet. MCLR (pin 63) requires a 10 kohm pull-up to VDD; omit it and the part will not exit reset properly.
At 80 MHz CPU clock and full USB plus ADC activity, the PIC32MX440F512HT-80V/MR draws approximately 65-80 mA from 3.3V. With the 64-VQFN (MR) package theta_JA around 22 C/W on a standard 4-layer JEDEC test board, junction temperature rise is roughly 5-6C above ambient at room temperature. Industrial designs targeting +105C junction must keep ambient below +90C. Reduce clock to 60 MHz or disable unused peripherals (USB, ADC) to lower dissipation in thermally-constrained enclosures.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade MCU, not automotive. For automotive designs Microchip offers PIC32MX variants with AEC-Q100 qualification. Lead-free reflow profile per JEDEC J-STD-020.
