MCHPPIC32MX440F256H-80I/PT
Overview
The PIC32MX440F256H-80I/PT is a high-performance 32-bit microcontroller based on the MIPS32 M4K core, operating at speeds up to 80MHz. This device features 256KB of Flash and 32KB of RAM, integrated with a Full-Speed USB 2.0 OTG controller. It is designed for applications requiring complex communication protocols and real-time processing in a 64-pin TQFP package.
Why Choose This Part
This MCU provides a robust balance of 53 I/O pins, many of which are 5V tolerant, simplifying interfacing with legacy digital logic. The inclusion of a 4-channel DMA controller and 16-channel 10-bit ADC allows for efficient data handling without stalling the primary CPU core.
Applications
Key Specifications
Getting Started
Development is typically performed using the MPLAB X IDE and the XC32 compiler. For hardware debugging and programming, the MPLAB ICD 4 or PICkit 4 tools are recommended. The Explorer 16/32 Development Board provides a modular platform for evaluating this silicon with specific PIM modules.
PIC32MX Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Flash | RAM | I/O Pins | Package | Speed | ADC/DAC | Stock |
|---|---|---|---|---|---|---|---|
| PIC32MX440F256H-80I/PT (this part) | 256KB | 32K | 53 | TQFP-64 | 80M | A/D 16x10b | 768 |
| PIC32MX795F512L-80I/PT (Microchip) | 512KB | 128K | 85 | TQFP-100 | 80M | A/D 16x10b | 24,856 |
| PIC32MX470F512H-I/PT | 512KB | 128K | 49 | TQFP-64 | 80M | A/D 28x10b | 2,389 |
| PIC32MX250F128B | 128KB | 32K | 19 | SSOP-28 | 40M | A/D 9x10b | 3,629 |
| PIC32MX170F256B-I/SP | 256KB | 64K | 21 | DIP-28 | 40M | A/D 10x10b | 171 |
| PIC32MX270F256B-50I/SP | 256KB | 64K | 19 | DIP-28 | 50M | A/D 9x10b | 275 |
| PIC32MX170F256B-50I/SP | 256KB | 64K | 21 | DIP-28 | 50M | A/D 10x10b | 83 |
| PIC32MX270F256D-50I/PT | 256KB | 64K | 33 | TQFP-44 | 50M | A/D 13x10b | 140 |
| PIC32MX250F128B-50I/SP | 128KB | 32K | 19 | DIP-28 | 50M | A/D 9x10b | 167 |
| PIC32MX470F512L-I/PT | 512KB | 128K | 81 | TQFP-100 | 80M | A/D 28x10b | 290 |
| PIC32MX250F128D-I/PT | 128KB | 32K | 33 | TQFP-44 | 40M | A/D 13x10b | 1,328 |
| PIC32MX270F256B-I/SP | 256KB | 64K | 19 | DIP-28 | 40M | A/D 9x10b | 172 |



