PIC32MX440F512H-80I/PT - 32-bit MCU 80MHz 512KB Flash USB-OTG TQFP-64
MPN: PIC32MX440F512H-80I/PT ✓ Hoạt độngPIC32MX440F512H-80I/PT Tóm tắt
A 32-bit MCU (microcontroller unit) is a single-chip computer that combines a 32-bit processor core, program memory (Flash), data memory (SRAM), and a rich set of peripherals (ADC, timers, communication interfaces). PIC32 microcontrollers are part of the MIPS32 family, positioning them above 8-bit PIC MCUs and below 32-bit Cortex-M ARM devices in the embedded hierarchy. They are well suited for USB, graphics, and connectivity applications requiring deterministic real-time behavior combined with high throughput.
Key features of the PIC32MX440F512H-80I/PT include 80 MHz / 105 DMIPS CPU performance, 512 KB Flash program memory, 32 KB SRAM data memory, integrated USB-OTG with PHY, 5-stage pipeline Harvard architecture, MIPS16e code compression for up to 40% smaller code, hardware multiply/divide unit, 16-bit wide instructions, dedicated DMA controller, and a 10-bit ADC with up to 1 Msps sampling.
The architecture combines a 5-stage pipeline, Harvard bus layout, and a high-bandwidth peripheral bus. The on-chip DMA engine can move data between peripherals and memory without CPU intervention, freeing the core for control loops and protocol handling. The integrated USB-OTG PHY eliminates external transceivers, reducing BOM cost on USB-equipped embedded products.
Typical applications include industrial control panels, USB peripherals (HID, CDC, mass storage), embedded graphics with external TFT controllers, automotive body electronics, point-of-sale terminals, medical instrumentation, and consumer audio devices. The wide operating voltage range (2.3 V to 3.6 V) simplifies battery-powered designs.
When designing with this device, ensure that the ICSP trace length between the programming connector and the PGECx/PGEDx pins is minimized to maintain reliable in-circuit serial programming. Decoupling capacitors (0.1 uF + bulk) must be placed close to VDD/AVDD pins.
This page synthesizes distributor pricing, drop-in compatible alternatives from the same PIC32MX family, and practical design notes not found in the standalone datasheet to accelerate your component selection.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX440F512H-80I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Không có bộ thay thế dễ dàng lắp đặt sẵn có cho sản phẩm này.
Yêu cầu các bộ thay thếPIC32MX440F512H-80I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit |
| CPU Speed | 80 MHz |
| DMIPS Performance | 105 DMIPS |
| Program Memory (Flash) | 512 KB (512K x 8) |
| Data Memory (SRAM) | 32 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 51 |
| USB Interface | USB 2.0 On-The-Go with integrated PHY |
| ADC | 10-bit, up to 1 Msps, 16 channels |
| DMA Channels | Dedicated DMA (4 channels) |
| Timers | 5 x 16-bit timers/counters |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 64-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
| Instruction Set | MIPS32 with MIPS16e code compression |
Cấu hình chân PIC32MX440F512H-80I/PT
| Chân 1 | RPB0/AN0 — Remappable I/O, Analog input 0 |
| Chân 2 | RPB1/AN1 — Remappable I/O, Analog input 1 |
| Chân 3 | RPB2/AN2/CVREF — Remappable I/O, Analog input 2, CVREF output |
| Chân 4 | RPB3/AN3 — Remappable I/O, Analog input 3 |
| Chân 5 | VREF-/RA9 — ADC VREF- or GPIO |
| Chân 6 | VREF+/RA10 — ADC VREF+ or GPIO |
| Chân 7 | AVDD — Analog supply voltage |
| Chân 8 | AVSS — Analog ground |
| Chân 9 | RPB4/AN4 — Remappable I/O, Analog input 4 |
| Chân 10 | RPB5/AN5 — Remappable I/O, Analog input 5 |
| Chân 11 | RPB6/AN6/PGEC2 — Remappable I/O, AN6, ICSP clock 2 |
| Chân 12 | RPB7/AN7/PGED2 — Remappable I/O, AN7, ICSP data 2 |
| Chân 13 | RC1 — Remappable I/O |
| Chân 14 | RC2 — Remappable I/O |
| Chân 15 | RC3 — Remappable I/O |
| Chân 16 | RC4 — Remappable I/O |
| Chân 17 | VSS — Digital ground |
| Chân 18 | VDD — Digital supply voltage |
| Chân 19 | PGEC1/RC5 — ICSP clock 1 or GPIO |
| Chân 20 | PGED1/RC6 — ICSP data 1 or GPIO |
| Chân 21 | RC7 — Remappable I/O |
| Chân 22 | RC8 — Remappable I/O |
| Chân 23 | RC9 — Remappable I/O |
| Chân 24 | VSS — Digital ground |
| Chân 25 | VDD — Digital supply voltage |
| Chân 26 | RPB8/AN8 — Remappable I/O, Analog input 8 |
| Chân 27 | RPB9/AN9 — Remappable I/O, Analog input 9 |
| Chân 28 | RPB10/AN10 — Remappable I/O, Analog input 10 |
| Chân 29 | RPB11/AN11 — Remappable I/O, Analog input 11 |
| Chân 30 | VSS — Digital ground |
| Chân 31 | VDD — Digital supply voltage |
| Chân 32 | VSS — Digital ground |
| Chân 33 | VDD — Digital supply voltage |
| Chân 34 | RPB12/AN12 — Remappable I/O, Analog input 12 |
| Chân 35 | RPB13/AN13 — Remappable I/O, Analog input 13 |
| Chân 36 | RPB14/AN14 — Remappable I/O, Analog input 14 |
| Chân 37 | RPB15/AN15/OCFB — Remappable I/O, AN15, Output Compare Fault B |
| Chân 38 | VSS — Digital ground |
| Chân 39 | VDD — Digital supply voltage |
| Chân 40 | RA0 — Remappable I/O |
| Chân 41 | RA1 — Remappable I/O |
| Chân 42 | RA2 — Remappable I/O |
| Chân 43 | RA3 — Remappable I/O |
| Chân 44 | RA4 — Remappable I/O |
| Chân 45 | RA5 — Remappable I/O |
| Chân 46 | RA6 — Remappable I/O |
| Chân 47 | RA7 — Remappable I/O |
| Chân 48 | VSS — Digital ground |
| Chân 49 | VDD — Digital supply voltage |
| Chân 50 | RD0 — Remappable I/O |
| Chân 51 | RD1 — Remappable I/O |
| Chân 52 | RD2 — Remappable I/O |
| Chân 53 | RD3 — Remappable I/O |
| Chân 54 | RD4 — Remappable I/O |
| Chân 55 | RD5 — Remappable I/O |
| Chân 56 | RD6 — Remappable I/O |
| Chân 57 | RD7 — Remappable I/O |
| Chân 58 | VSS — Digital ground |
| Chân 59 | RD8 — Remappable I/O |
| Chân 60 | RD9 — Remappable I/O |
| Chân 61 | RD10 — Remappable I/O |
| Chân 62 | RD11 — Remappable I/O |
| Chân 63 | RD12 — Remappable I/O |
| Chân 64 | RD13 — Remappable I/O |
| Chân exposed_pad | VSS — Ground (exposed thermal pad, must be soldered to PCB ground) |
Ứng dụng tiêu biểu
PIC32MX440F512H-80I/PT phù hợp cho 6 Áp dụngs: USB HID Peripheral Devices, Industrial Control Panels, Embedded Data Acquisition Systems, USB-to-UART Bridge Devices, Consumer Audio Processing, Medical Instrumentation.
USB HID Peripheral Devices
The PIC32MX440F512H-80I/PT is an excellent fit for USB Human Interface Devices such as keyboards, mice, game controllers, and custom HID input devices. Its integrated USB-OTG controller with on-chip PHY eliminates the external transceiver, while the dedicated DMA channel handles USB endpoint transfers without CPU intervention. At 80 MHz and 105 DMIPS, the M4K core can parse HID reports, debounce inputs, and execute LED animations concurrently without jitter. The 512 KB Flash accommodates full USB stacks and custom descriptors. Place the USB D+/D- traces as a 90-ohm differential pair with matched length to maintain signal integrity per USB 2.0 specification.
Được đề xuất
Industrial Control Panels
For industrial control panels with HMI touchscreens, the PIC32MX440F512H-80I/PT delivers 80 MHz performance to drive TFT LCDs via Parallel Master Port or SPI, while USB-OTG enables field firmware updates. The 512 KB Flash stores complete Modbus, EtherNet/IP, or CANopen protocol stacks alongside HMI graphics. The -40 C to +85 C industrial temperature rating ensures operation in factory environments. Its dedicated DMA channels handle ADC scanning of sensor inputs at 1 Msps while the CPU processes the HMI loop without dropping samples, providing deterministic control loop response. Add TVS protection on USB and external lines for surge immunity.
Được đề xuất
Embedded Data Acquisition Systems
The PIC32MX440F512H-80I/PT is well suited for multi-channel data acquisition systems requiring simultaneous sampling and high throughput. Its 10-bit ADC with 16 input channels and 1 Msps sample rate, combined with dedicated DMA, can capture multi-sensor data streams into SRAM without CPU intervention. The 80 MHz CPU then post-processes, filters, and transmits via USB-OTG to a host PC at high speed. With 32 KB SRAM buffering and 512 KB Flash for FFT or DSP routines, the MCU handles vibration analysis, temperature logging, or power monitoring applications. Use external op-amps to buffer analog inputs and add RC anti-aliasing filters before the ADC pins.
Được đề xuất
USB-to-UART Bridge Devices
The PIC32MX440F512H-80I/PT functions as a high-performance USB-to-UART bridge, replacing FTDI-style converters with a fully programmable solution. Its USB-OTG controller enumerates as a CDC-ACM or vendor-class device, while two UART peripherals provide serial data at speeds up to 20 Mbps. The 80 MHz CPU easily handles baud rates above 1 Mbps without data loss, and 512 KB Flash stores CDC stack plus custom protocol layers. This design fits industrial converters, debug loggers, and IoT gateways that need USB host connectivity to legacy RS-232/485 devices. The dedicated DMA can offload UART FIFO servicing to maintain zero-overhead flow control.
Được đề xuất
Consumer Audio Processing
The PIC32MX440F512H-80I/PT handles USB Audio Class 1.0 devices including USB speakers, headsets, and DAC interfaces. Its 80 MHz MIPS32 M4K core processes audio streams at 48 kHz sample rate with headroom for DSP effects such as equalization or 3D spatialization. USB-OTG delivers isochronous audio at full-speed 12 Mbps, while I2S or SPI connects to external DACs like the PCM5102A. The 32 KB SRAM buffers USB audio packets, and 512 KB Flash stores USB descriptors plus DSP code. Use DMA to move audio samples between USB endpoint memory and I2S transmit registers, minimizing CPU load.
Được đề xuất
Medical Instrumentation
The PIC32MX440F512H-80I/PT suits medical instrumentation such as portable spirometers, pulse oximeters, and point-of-care diagnostic devices. Its USB-OTG enables data upload to clinician PCs, while the 10-bit ADC captures analog sensor signals from instrumentation amplifiers. The 80 MHz core runs real-time filtering algorithms on sensor data, and 512 KB Flash stores calibration tables and patient record data structures. Industrial temperature rating supports clinical environments. Add optocouplers on any mains-connected portions for patient isolation per IEC 60601, and ensure firmware follows FDA cybersecurity guidance for connected medical devices.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX440F512H-80I/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 | PIC32MX440F512H-80I/MR |
|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin QFN (9x9 mm) |
| Brand | Microchip Technology | Microchip Technology |
| Core | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| CPU Speed | 80 MHz | 80 MHz |
| Flash Memory | 512 KB | 512 KB |
| SRAM | 32 KB | 32 KB |
| USB-OTG | Yes (integrated PHY) | Yes (integrated PHY) |
| ADC | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
Bảo phân biệt quan trọng
- Integrated USB-OTG with PHY and dedicated DMA (vsPIC32MX460F512L)
- Cost-optimized 64-pin TQFP with USB (vsPIC32MX795F512L (100-pin TQFP))
- MIPS16e code compression saves Flash (vsGeneric ARM Cortex-M0 MCU)
Ghi chú thiết kế
Decoupling: Place 0.1 uF ceramic capacitors as close as possible to each VDD/AVDD pin pair, plus a single 10 uF bulk capacitor near the MCU. The exposed thermal pad on QFN variants must be soldered to a PCB ground pad with multiple thermal vias to a ground plane for heat dissipation. USB D+/D- traces should be a 90-ohm differential pair routed on the top layer over a continuous ground plane per the Microchip PIC32MX3XX/4XX family datasheet routing guidelines.
ICSP trace length: Keep traces between the ICSP programming connector (PGEC1/PGED1) and the MCU pins shorter than 50 mm (about 2 inches) to ensure reliable in-circuit serial programming. If the connector must be far from the MCU, add a series 100-ohm resistor near the MCU pin to dampen ringing. Do not share PGECx/PGEDx pins with high-speed switching signals without proper isolation. Estimate: trace propagation delay at ~5 ns/m and impedance mismatch can cause programming failures above ~100 mm.
Power sequencing: Apply VDD before or simultaneously with AVDD. The internal core regulator derives 1.8 V from VDD; if VDD drops below 2.0 V, the regulator cannot guarantee core logic operation. Add a 10 uF bulk capacitor on the MCU VDD rail with a 0.1 uF ceramic bypass. For USB applications, ensure VDD stays above 3.0 V during USB enumeration to meet USB electrical specifications per the Microchip datasheet. Estimated: total current draw at 80 MHz with USB active is approximately 70-85 mA.
Configuration words must be set correctly: disable JTAG if using all pins as GPIO, enable the appropriate oscillator mode (HS or XT with correct PLL settings for 80 MHz), and configure the alternate-pin function mapping via PPS (Peripheral Pin Select). Mistakenly leaving the JTAG enabled consumes four I/O pins. Wrong PLL configuration causes the MCU to run at half speed or fail to start. Always verify configuration bits in the IDE's configuration window before programming.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified - choose PIC32MX variants with automotive qualification for vehicle applications.
