PIC32MX440F512H-80I/PT - 32-bit MCU 80MHz 512KB Flash USB-OTG TQFP-64
MPN: PIC32MX440F512H-80I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.5351 | $13.54 |
| 10 | $12.18 | $121.80 |
| 100 | $10.83 | $1,083.00 |
| 500 | $9.62 | $4,810.00 |
| 1,000 | $8.55 | $8,550.00 |
PIC32MX440F512H-80I/PT Overview
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.
Drop-in alternatives for PIC32MX440F512H-80I/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesPIC32MX440F512H-80I/PT Maximum Ratings & Electrical Characteristics
| 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 |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
| Instruction Set | MIPS32 with MIPS16e code compression |
PIC32MX440F512H-80I/PT Pin Configuration
| Pin 1 | RPB0/AN0 — Remappable I/O, Analog input 0 |
| Pin 2 | RPB1/AN1 — Remappable I/O, Analog input 1 |
| Pin 3 | RPB2/AN2/CVREF — Remappable I/O, Analog input 2, CVREF output |
| Pin 4 | RPB3/AN3 — Remappable I/O, Analog input 3 |
| Pin 5 | VREF-/RA9 — ADC VREF- or GPIO |
| Pin 6 | VREF+/RA10 — ADC VREF+ or GPIO |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | RPB4/AN4 — Remappable I/O, Analog input 4 |
| Pin 10 | RPB5/AN5 — Remappable I/O, Analog input 5 |
| Pin 11 | RPB6/AN6/PGEC2 — Remappable I/O, AN6, ICSP clock 2 |
| Pin 12 | RPB7/AN7/PGED2 — Remappable I/O, AN7, ICSP data 2 |
| Pin 13 | RC1 — Remappable I/O |
| Pin 14 | RC2 — Remappable I/O |
| Pin 15 | RC3 — Remappable I/O |
| Pin 16 | RC4 — Remappable I/O |
| Pin 17 | VSS — Digital ground |
| Pin 18 | VDD — Digital supply voltage |
| Pin 19 | PGEC1/RC5 — ICSP clock 1 or GPIO |
| Pin 20 | PGED1/RC6 — ICSP data 1 or GPIO |
| Pin 21 | RC7 — Remappable I/O |
| Pin 22 | RC8 — Remappable I/O |
| Pin 23 | RC9 — Remappable I/O |
| Pin 24 | VSS — Digital ground |
| Pin 25 | VDD — Digital supply voltage |
| Pin 26 | RPB8/AN8 — Remappable I/O, Analog input 8 |
| Pin 27 | RPB9/AN9 — Remappable I/O, Analog input 9 |
| Pin 28 | RPB10/AN10 — Remappable I/O, Analog input 10 |
| Pin 29 | RPB11/AN11 — Remappable I/O, Analog input 11 |
| Pin 30 | VSS — Digital ground |
| Pin 31 | VDD — Digital supply voltage |
| Pin 32 | VSS — Digital ground |
| Pin 33 | VDD — Digital supply voltage |
| Pin 34 | RPB12/AN12 — Remappable I/O, Analog input 12 |
| Pin 35 | RPB13/AN13 — Remappable I/O, Analog input 13 |
| Pin 36 | RPB14/AN14 — Remappable I/O, Analog input 14 |
| Pin 37 | RPB15/AN15/OCFB — Remappable I/O, AN15, Output Compare Fault B |
| Pin 38 | VSS — Digital ground |
| Pin 39 | VDD — Digital supply voltage |
| Pin 40 | RA0 — Remappable I/O |
| Pin 41 | RA1 — Remappable I/O |
| Pin 42 | RA2 — Remappable I/O |
| Pin 43 | RA3 — Remappable I/O |
| Pin 44 | RA4 — Remappable I/O |
| Pin 45 | RA5 — Remappable I/O |
| Pin 46 | RA6 — Remappable I/O |
| Pin 47 | RA7 — Remappable I/O |
| Pin 48 | VSS — Digital ground |
| Pin 49 | VDD — Digital supply voltage |
| Pin 50 | RD0 — Remappable I/O |
| Pin 51 | RD1 — Remappable I/O |
| Pin 52 | RD2 — Remappable I/O |
| Pin 53 | RD3 — Remappable I/O |
| Pin 54 | RD4 — Remappable I/O |
| Pin 55 | RD5 — Remappable I/O |
| Pin 56 | RD6 — Remappable I/O |
| Pin 57 | RD7 — Remappable I/O |
| Pin 58 | VSS — Digital ground |
| Pin 59 | RD8 — Remappable I/O |
| Pin 60 | RD9 — Remappable I/O |
| Pin 61 | RD10 — Remappable I/O |
| Pin 62 | RD11 — Remappable I/O |
| Pin 63 | RD12 — Remappable I/O |
| Pin 64 | RD13 — Remappable I/O |
| Pin exposed_pad | VSS — Ground (exposed thermal pad, must be soldered to PCB ground) |
Typical Applications
PIC32MX440F512H-80I/PT is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX440F512H-80I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Integrated USB-OTG with PHY and dedicated DMA (vs PIC32MX460F512L)
- Cost-optimized 64-pin TQFP with USB (vs PIC32MX795F512L (100-pin TQFP))
- MIPS16e code compression saves Flash (vs Generic ARM Cortex-M0 MCU)
Design Notes
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.
Compliance Information
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.
