PIC32MX440F128HT-80V/PT - 80MHz 32-bit MCU 128KB Flash | Microchip
MPN: PIC32MX440F128HT-80V/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.96 | $59.60 |
| 100 | $5.34 | $534.00 |
| 500 | $4.83 | $2,415.00 |
| 1,000 | $4.4 | $4,400.00 |
PIC32MX440F128HT-80V/PT Overview
Background: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash for program code and SRAM for data), and peripherals such as ADC, timers, communication interfaces, and I/O. The PIC32MX family uses the MIPS32 M4K core architecture, which sits in the hierarchy of 32-bit RISC processors used in mid-range embedded applications. MCUs are the central processing units in countless embedded systems, from consumer electronics to industrial controllers, where deterministic real-time performance and rich peripheral integration are required.
Key features of the PIC32MX440F128HT-80V/PT include 128KB of Flash program memory, 32KB of SRAM, a 10-bit ADC with multiple input channels, a USB 2.0 full-speed On-The-Go peripheral for host or device roles, hardware DMA for offloading data movement, and a wide operating voltage range of 2.3V to 3.6V. The 80MHz core delivers up to 1.56 DMIPS/MHz of computational performance while consuming low power, and the device supports industrial temperature grades depending on variant.
At the architecture level, the PIC32MX440F128HT-80V/PT uses a Harvard-style bus architecture with separate instruction and data paths, 5-stage pipeline, and hardware multiply/divide for efficient integer math. The DMA controller can move data between peripherals and memory without CPU intervention, freeing the core for application code. The USB-OTG block adds a high-level interface for connecting to PCs, mass storage, or HID-class peripherals.
Typical applications include USB peripherals such as HID input devices, industrial control interfaces, sensor hubs with USB reporting, embedded web/HMI control panels, and motor-control pre-processor boards. The combination of ample Flash and RAM makes it well suited to USB stack libraries and graphic UI implementations. When designing, observe the 80MHz maximum clock and ensure USB trace impedance is controlled per the USB 2.0 full-speed specification; for high-reliability designs, follow Microchip's PIC32MX3xx/4xx family reference designs.
This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the Microchip PIC32MX portfolio, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate supply options and select a drop-in pin-compatible variant quickly.
Drop-in alternatives for PIC32MX440F128HT-80V/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC32MX440F128HT-80V/PT (same form factor and footprint) — differing in ADC, DMA Channels, Package, Timers, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX440F128H-80V/PT
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →PIC32MX440F128HT-80I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX340F128HT-80V/PT
✅ Drop-In✓ In Stock
$5.6 / Unit
View Datasheet →PIC32MX360F256L-80V/PT
✅ Drop-In✓ In Stock
$5.78 / Unit
View Datasheet →PIC32MX450F128HT-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.65 / Unit
View Datasheet →PIC32MX440F128HT-80V/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Bit Width | 32-bit |
| Maximum CPU Clock | 80 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 32 KB |
| USB Peripheral | USB 2.0 Full-Speed OTG |
| ADC | 10-bit |
| DMA Channels | Yes (hardware DMA) |
| Number of I/O Pins | 53 |
| Supply Voltage | 2.3 V to 3.6 V |
| Package | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +105C (V grade) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC32MX440F128HT-80V/PT 64-pin tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for PIC32MX440F128HT-80V/PT (64-pin tqfp (10x10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC32MX440F128HT-80V/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX440F128HT-80V/PT is suitable for 6 applications: USB HID Input Devices, Industrial Sensor Hubs, Embedded Web/HMI Control Panels, USB Mass Storage / Data Logger, Motor Control Pre-Processor, Educational / Maker Development Boards.
USB HID Input Devices
The PIC32MX440F128HT-80V/PT is well matched to USB HID class devices such as keyboards, mice, touch panels, and custom input peripherals. Its integrated USB 2.0 Full-Speed OTG controller with internal transceiver eliminates the need for an external USB PHY, reducing BOM cost. The 80MHz MIPS32 M4K core and 32KB RAM comfortably run the Microchip USB stack and HID report handlers. 128KB Flash accommodates full USB descriptors, HID report definitions, and application firmware with USB suspend/resume handling. A USB-capable engineer can build a production-quality HID device around this MCU in a 64-pin TQFP footprint, freeing board area for sensors or actuators in the same enclosure.
Recommended
Industrial Sensor Hubs
Industrial sensor aggregation nodes benefit from the PIC32MX440F128HT-80V/PT combination of 10-bit ADC channels, hardware DMA, and 53 I/O pins for parallel sensor polling. The DMA engine can continuously stream ADC samples into SRAM without CPU intervention, leaving core cycles for averaging, thresholding, and protocol encoding. The 'V' suffix supports -40C to +105C operation, suiting outdoor cabinets and machine rooms. USB-OTG provides a service-port option for field diagnostics, allowing technicians to plug in a laptop and download logs without opening the enclosure. The 64-pin TQFP package gives designers enough I/O for multiple sensor types plus a USB uplink on a single small PCB.
Recommended
Embedded Web/HMI Control Panels
Small embedded web servers and HMI control panels with USB diagnostic ports fit well on the PIC32MX440F128HT-80V/PT. The 80MHz core and 32KB RAM can run Microchip's TCP/IP Lite stack plus a small HTTP server with CGI handlers for configuring attached equipment. The 128KB Flash holds an embedded HTML/CSS asset set plus application logic for digital I/O and analog monitoring. The USB-OTG peripheral acts as a maintenance bus: when a service laptop is plugged in, the panel exposes diagnostics or accepts firmware updates. The 64-pin TQFP exposes enough pins for a small character LCD or OLED display plus button inputs, while staying within a 10x10 mm footprint.
Recommended
USB Mass Storage / Data Logger
USB mass storage class devices and portable data loggers are a strong fit for the PIC32MX440F128HT-80V/PT. The MCU can implement USB MSC device mode with an external SD card or NAND interface, exposing the storage to a host PC as a removable drive. The 32KB SRAM acts as a sector buffer for read/write operations, and the DMA engine moves data between USB endpoint RAM and the storage peripheral with minimal CPU load. 128KB Flash is sufficient for USB MSC stack, FAT driver, and command-line interfaces if needed. Industrial-temperature V-grade operation supports deployment in field data loggers and vehicle telemetry recorders.
Recommended
Motor Control Pre-Processor
The PIC32MX440F128HT-80V/PT works as a pre-processor and command interface for motor control systems. It handles the host protocol (USB CDC, CAN, or UART), interprets motion commands, and generates step/direction or PWM signals to a downstream dsPIC or dedicated motor driver. The 80MHz MIPS core plus hardware DMA can service high-speed encoder inputs and generate precise pulse trains in real time. 128KB Flash allows complex motion profiles and fault-handling state machines, while the USB-OTG peripheral supports field updates from a host laptop. The 'V' temperature grade accommodates the cabinet heat typical of motor enclosures.
Recommended
Educational / Maker Development Boards
The PIC32MX440F128HT-80V/PT is widely used in university curricula and hobbyist development kits because of the free MPLAB X toolchain and the mature Harmony code examples. Its 80MHz performance with 128KB Flash gives students real headroom for projects involving USB, networking, or DSP filter implementations. The 64-pin TQFP is friendly to hand-soldering with fine-pitch breakout boards, and the 53 available I/O pins accept most sensor and actuator shields. USB-OTG support means a single board can be programmed, debugged, and used as a USB device without extra chips. The extensive community code base and reference designs shorten development cycles for prototypes and learning exercises.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX440F128HT-80V/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX440F128H-80V/PT | PIC32MX440F128HT-80I/PT | PIC32MX340F128HT-80V/PT | PIC32MX360F256L-80V/PT | PIC32MX450F128HT-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Core / Architecture | MIPS32 M4K, 32-bit, 80 MHz | MIPS32 M4K, 32-bit, 80 MHz | MIPS32 M4K, 32-bit, 80 MHz | MIPS32 M4K, 32-bit, 80 MHz | MIPS32 M4K, 32-bit, 80 MHz | MIPS32 M4K, 32-bit, 80 MHz |
| Flash | 128 KB | 128 KB | 128 KB | 128 KB | 256 KB | 128 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB-OTG | Yes (FS OTG) | Yes (FS OTG) | Yes (FS OTG) | No | No | Yes (FS OTG) |
| Operating Temperature | -40C to +105C (V) | -40C to +105C (V) | -40C to +85C (I) | -40C to +105C (V) | -40C to +105C (V) | -40C to +85C (I) |
| Packaging Format | Tape & Reel ('T') | Tray | Tape & Reel ('T') | Tape & Reel ('T') | Tape & Reel ('T') | Tape & Reel ('T') |
Key Differentiators
- Integrated USB 2.0 Full-Speed OTG with internal transceiver (vs PIC32MX340F128HT-80V/PT)
- V-grade temperature range (-40C to +105C) (vs PIC32MX440F128HT-80I/PT)
- 64-pin TQFP with 53 user I/O and 10-bit ADC (vs PIC32MX360F256L-80V/PT)
Design Notes
The PIC32MX440F128HT-80V/PT operates from 2.3V to 3.6V; design the supply rail with adequate decoupling (100 nF plus 10 uF bulk) on each VDD pin pair. AVDD (analog supply) should be tied to the same rail but filtered with a ferrite bead and 10 uF + 100 nF for low-noise ADC reference operation. Estimated: at 80 MHz with USB active, core current is roughly 30-40 mA; budget total board power accordingly.
Route the USB D+ and D- traces as a 90-ohm differential pair with matched length, and place the USB connector's shield-ground connection through an RC network to chassis ground to suppress EMI. Keep crystal traces short and symmetric, and route ADC analog inputs away from switching nodes (PWM, USB) to preserve ADC accuracy. The 64-TQFP has an exposed pad that should be soldered to a continuous ground plane for thermal dissipation.
Do not assume the PIC32MX340 and PIC32MX440 share firmware - the USB-OTG peripheral register map differs and requires revalidation. Also note that the V-grade temperature range (-40C to +105C) is wider than the I-grade (-40C to +85C); selecting the wrong grade for outdoor or industrial cabinets can cause field failures. Always verify the configuration bits (DEVCFG0/1/2/3) in code match the silicon revision noted on the device marking.
When using the parallel master port (PMP) or high-speed peripherals, place series damping resistors close to the MCU outputs to reduce ringing on long PCB traces. For ADC accuracy, disable digital input buffers on analog-capable pins (ANSELx register) to avoid digital switching noise coupling into the analog channel. Estimated: at 80 MHz system clock, GPIO toggle rates are limited to about 50 MHz; verify timing against your protocol requirements.
Compliance Information
RoHS and lead-free compliant per Microchip product page; not AEC-Q100 qualified (industrial/consumer grade).
