PIC32MX470F512HT-V/PT
PIC32MX470F512HT-V/PT - 80MHz, 512KB Flash 32-bit MCU | Microchip
The Microchip Technology PIC32MX470F512HT-V/PT is a 32-bit MIPS32 M4K microcontroller with 512KB Flash and 128KB SRAM, operating up to 80MHz (with 120MHz/150 DMIPS capable family variants) in a 64-pin TQFP (10x10 mm) package. It integrates a USB 2.0 Full-Speed OTG controller, two I2S/SPI modules, Peripheral Pin Select (PPS), a Parallel Master Port (PMP), and a Charge Time Measurement Unit (CTMU) for HMI applications.
A PIC32MX microcontroller is a 32-bit RISC MCU based on the MIPS32 M4K core, positioned between 8-bit PIC16/PIC18 microcontrollers and higher-end ARM Cortex-M devices. PIC32MX parts combine deterministic 32-bit performance with rich integrated peripherals (USB, I2S, PMP, CTMU), targeting embedded HMI, audio, USB-device, and graphics user-interface designs that outgrow 8-bit parts but do not need a Cortex-M4 application processor. Within the PIC32 family, MX4 subfamily devices add more memory and USB/HMI features compared to MX1/MX2; within MX4, the 470 variant is the largest-memory tier.
Key features include up to 80MHz core clock, 1.56 DMIPS/MHz performance, 512KB Flash with 128KB RAM, 28 channels of 10-bit ADC, 5 PWM channels, 5 timers/counters, 4 UART modules, 2 I2C, 2 I2S, 2 SPI, USB 2.0 Full-Speed OTG, and Peripheral Pin Select (PPS) that remaps most digital peripherals to almost any I/O pin. The operating voltage range is 2.3V to 3.6V, and the industrial/extended operating temperature range is -40C to +105C, suitable for harsh-environment embedded systems.
The architecture uses a single-core MIPS32 M4K 32-bit RISC pipeline with hardware multiply/divide and a tightly-coupled prefetch module for deterministic Flash execution. A 5-stage pipeline, branch delay slot, and dual-set associative SRAM allow sustained 1.56 DMIPS/MHz throughput. The integrated USB 2.0 Full-Speed OTG transceiver, dedicated DMA channels, and PMP graphics interface enable QVGA TFT display support without an external controller.
Typical applications include USB peripherals (HID, CDC, MSD), audio playback with I2S codec interfaces, HMI touch panels using CTMU + 10-bit ADC, QVGA TFT LCD graphics with PMP, industrial control panels, and home automation controllers. The wide -40C to +105C temperature range and rich peripherals also fit automotive body electronics and white-goods user interfaces.
When designing with this device, allocate sufficient Flash wait-state budgeting for the 80MHz core clock; use the PIC32 USB stack and Harmony framework firmware; and place a 12 MHz primary oscillator crystal within 1 cm of the OSC1/OSC2 pins with a guarded ground ring to meet USB electrical compliance. Always enable JTAG/ICSP debugging pads even on production boards to allow field firmware recovery.
This page synthesizes distributor pricing, drop-in 64-pin TQFP alternatives, and practical design notes (PPS routing, USB layout, CTMU touch) that the manufacturer datasheet alone does not provide, giving procurement and design engineers a single reference for evaluation and second sourcing.
USD $4.20
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