PIC32MX470F512L-I/PF - 32-Bit 80MHz 512KB Flash MCU | Microchip
MPN: PIC32MX470F512L-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.83 | $12.83 |
| 10 | $11.55 | $115.50 |
| 100 | $10.27 | $1,027.00 |
| 500 | $9.1 | $4,550.00 |
| 1,000 | $8.45 | $8,450.00 |
PIC32MX470F512L-I/PF Overview
A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory, data memory, and configurable peripherals. The PIC32MX3/4 family sits in the hierarchy: microcontroller -> 32-bit MCU -> MIPS M4K core -> PIC32MX family -> Microchip 32-bit portfolio. These devices target human-machine interface (HMI), audio, USB connectivity, and advanced analog applications, bridging the gap between 8/16-bit MCUs and higher-cost application processors.
Key features include five 16-bit timers/counters, five input capture and five output compare modules, a 16-bit Parallel Master Port, JTAG and 2-wire programming/debug, and an operating range of 2.3V to 3.6V. The industrial temperature grade (-I) supports -40C to +85C operation, suitable for commercial and industrial embedded designs. The peripheral set is engineered for low-power and connected applications where integration reduces BOM cost.
Architecturally, the PIC32MX470 uses a Harvard-style MIPS32 M4K core with separate 32-bit instruction and data paths, hardware multiply/divide, and tightly-coupled peripherals accessible via a high-bandwidth bus matrix. Code execution is held in 512 KB Flash, while 128 KB SRAM supports large data buffers required for USB, audio streaming, or graphical UI rendering.
Typical applications include USB audio devices (USB headphones, microphones, mixing consoles), HMI panels with touch and graphical LCDs, industrial control with USB logging, low-cost embedded instrumentation, and connected sensor hubs. The wide peripheral set allows a single chip to replace external logic, shrinking BOM and PCB area.
When designing with this MCU, mind the 3.3V supply rail requirement, route the USB DP/DM pair with 90 ohm differential impedance, and reserve the I2S pins if audio streaming is needed. Decouple VDD/VSS pairs with 100 nF plus bulk capacitors near the package, and consult Microchip's PIC32MX3/4/5/6/7 family reference manual for peripheral configuration details.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and design notes not collected on the manufacturer datasheet to accelerate your selection of the PIC32MX470F512L-I/PF.
Drop-in alternatives for PIC32MX470F512L-I/PF — 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 PIC32MX470F512L-I/PF (same form factor and footprint) — differing in Package, ADC, Core Architecture, Timers, Flash Program Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX470F512LT-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.2 / Unit
View Datasheet →PIC32MX470F512L-120I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX470F512L-120/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX460F512L-80I/PT
✅ Drop-In✓ In Stock
$6.05 / Unit
View Datasheet →PIC32MX460F512L-80V/PT
✅ Drop-In✓ In Stock
$9.8 / Unit
View Datasheet →PIC32MX450F256L-V/PF
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC32MX450F256L-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX470F512L-I/PF Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K 32-bit |
| Core Speed (I/PF grade) | 80 MHz |
| Core Speed (-120 grade) | 120 MHz |
| Performance | 150 DMIPS |
| Flash Program Memory | 512 KB (512K x 8) |
| SRAM | 128 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| Package | 100-pin TQFP (14x14 mm, PF) |
| Operating Temperature (I grade) | -40C to +85C |
| I/O Pins | 85 (maximum, package-dependent) |
| ADC | 10-bit, up to 1 Msps, up to 28 channels |
| Analog Comparators | 2 |
| USB | USB 2.0 Full-Speed OTG |
| UART | 6 |
| SPI / I2S | 2 (I2S-capable) |
| I2C | 2 |
| Timers | 5 x 16-bit |
| Input Capture / Output Compare | 5 / 5 |
| Parallel Master Port (PMP) | Yes (16-bit) |
| Programming/Debug | JTAG + 2-wire ICSP |
| RoHS Status | Compliant |
PIC32MX470F512L-I/PF Pin Configuration
| Pin 1 | RG15 — General purpose I/O |
| Pin 2 | RG0 — General purpose I/O / PMP |
| Pin 3 | VSS — Ground |
| Pin 4 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 5 | RA0 — Analog input / GPIO |
| Pin 6 | RA1 — Analog input / GPIO |
| Pin 7 | RA2 — Analog input / GPIO |
| Pin 8 | RA3 — Analog input / GPIO |
| Pin 9 | RA4 — Analog input / GPIO |
| Pin 10 | RA5 — Analog input / GPIO |
| Pin 11 | VSS — Ground |
| Pin 12 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 13 | RB0 — GPIO / Programming |
| Pin 14 | RB1 — GPIO |
| Pin 15 | RB2 — GPIO |
| Pin 16 | RB3 — GPIO |
| Pin 17 | RB4 — GPIO |
| Pin 18 | RB5 — GPIO |
| Pin 19 | RB6 — GPIO |
| Pin 20 | RB7 — GPIO |
| Pin 21 | RB8 — GPIO |
| Pin 22 | RB9 — GPIO |
| Pin 23 | VSS — Ground |
| Pin 24 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 25 | RB10 — GPIO |
| Pin 26 | RB11 — GPIO |
| Pin 27 | RB12 — GPIO |
| Pin 28 | RB13 — GPIO |
| Pin 29 | RB14 — GPIO |
| Pin 30 | RB15 — GPIO |
| Pin 31 | VSS — Ground |
| Pin 32 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 33 | RC0 — GPIO |
| Pin 34 | RC1 — GPIO |
| Pin 35 | RC2 — GPIO |
| Pin 36 | RC3 — GPIO |
| Pin 37 | RC4 — GPIO |
| Pin 38 | RC5 — GPIO |
| Pin 39 | RC6 — GPIO |
| Pin 40 | RC7 — GPIO |
| Pin 41 | RC8 — GPIO |
| Pin 42 | RC9 — GPIO |
| Pin 43 | VSS — Ground |
| Pin 44 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 45 | RC10 — GPIO |
| Pin 46 | RC11 — GPIO |
| Pin 47 | RC12 — GPIO |
| Pin 48 | RC13 — GPIO |
| Pin 49 | RC14 — GPIO |
| Pin 50 | RC15 — GPIO |
| Pin 51 | VSS — Ground |
| Pin 52 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 53 | RD0 — GPIO / PMP |
| Pin 54 | RD1 — GPIO / PMP |
| Pin 55 | RD2 — GPIO / PMP |
| Pin 56 | RD3 — GPIO / PMP |
| Pin 57 | RD4 — GPIO / PMP |
| Pin 58 | RD5 — GPIO / PMP |
| Pin 59 | RD6 — GPIO / PMP |
| Pin 60 | RD7 — GPIO / PMP |
| Pin 61 | RD8 — GPIO / PMP |
| Pin 62 | RD9 — GPIO / PMP |
| Pin 63 | RD10 — GPIO / PMP |
| Pin 64 | RD11 — GPIO / PMP |
| Pin 65 | VSS — Ground |
| Pin 66 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 67 | RD12 — GPIO / PMP |
| Pin 68 | RD13 — GPIO / PMP |
| Pin 69 | RD14 — GPIO / PMP |
| Pin 70 | RD15 — GPIO / PMP |
| Pin 71 | VSS — Ground |
| Pin 72 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 73 | RE0 — GPIO / PMP |
| Pin 74 | RE1 — GPIO / PMP |
| Pin 75 | RE2 — GPIO / PMP |
| Pin 76 | RE3 — GPIO / PMP |
| Pin 77 | RE4 — GPIO / PMP |
| Pin 78 | RE5 — GPIO / PMP |
| Pin 79 | RE6 — GPIO / PMP |
| Pin 80 | RE7 — GPIO / PMP |
| Pin 81 | VSS — Ground |
| Pin 82 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 83 | RF0 — GPIO |
| Pin 84 | RF1 — GPIO |
| Pin 85 | RF2 — GPIO / USB VBUS detect |
| Pin 86 | RF3 — GPIO / USB ID |
| Pin 87 | RF4 — GPIO / USB D- |
| Pin 88 | RF5 — GPIO / USB D+ |
| Pin 89 | RF6 — GPIO |
| Pin 90 | RF7 — GPIO |
| Pin 91 | RF8 — GPIO |
| Pin 92 | VSS — Ground |
| Pin 93 | VDD — Core logic power supply (2.3-3.6V) |
| Pin 94 | RG0 — GPIO |
| Pin 95 | RG1 — GPIO |
| Pin 96 | RG2 — GPIO / D+ |
| Pin 97 | RG3 — GPIO / D- |
| Pin 98 | RG6 — GPIO / SCLK |
| Pin 99 | RG7 — GPIO / SDI |
| Pin 100 | RG8 — GPIO / SDO |
Typical Applications
PIC32MX470F512L-I/PF is suitable for 6 applications: USB Audio Devices (Headphones, Headsets, Mixers), HMI Panels with Touch and Graphical LCD, Industrial Control with USB Data Logging, Low-Cost Embedded Instrumentation, Connected Sensor Hubs / IoT Gateways, Audio/Graphics Development Prototyping (USB PIM).
USB Audio Devices (Headphones, Headsets, Mixers)
The PIC32MX470F512L-I/PF is a strong fit for USB audio peripherals because it integrates USB 2.0 full-speed OTG with the 100-pin TQFP exposing DP/DM pins, alongside two I2S ports for digital audio paths at up to 48 kHz / 24-bit. Its 128 KB SRAM holds multiple audio streaming buffers without off-chip memory, while the MIPS32 M4K core at 80 MHz runs USB stack + I2S DMA + user DSP with margin. Placed as the central MCU with an external DAC such as the PCM5101A or codec like the SGTL5000, it removes the need for an external USB audio bridge. Designers should route the 90-ohm USB differential pair carefully and add ferrite beads on VBUS.
Recommended
HMI Panels with Touch and Graphical LCD
The PIC32MX470F512L-I/PF drives graphical HMI panels via its 16-bit Parallel Master Port (PMP), which can directly interface TFT LCDs up to 480x272 without an external controller. With 512 KB Flash and 128 KB SRAM, frame buffers and UI assets fit on-chip; the 10-bit ADC with up to 28 channels supports resistive touch acquisition. The 100-pin TQFP exposes all PMP data and control lines. Compared to higher-cost MPU solutions, the PIC32MX470 reduces BOM by integrating USB for touch panel firmware updates and offering enough MIPS for smooth UI rendering.
Recommended
Industrial Control with USB Data Logging
The PIC32MX470F512L-I/PF is well-suited to industrial control plus USB data logging because its industrial -40C to +85C operating range and 100-pin TQFP support up to 85 I/O and 28 ADC channels. It can scan sensors, run PID loops on the 32-bit MIPS core, and stream logs over USB OTG as a mass storage device. The 6 UART and 2 SPI/I2C connect to RS485 transceivers, sensors, and external peripherals; the 128 KB SRAM holds minutes of timestamped logs at typical sample rates. Pair it with an isolation IC such as ADM3251E for robust industrial field interfaces.
Recommended
Low-Cost Embedded Instrumentation
For test and measurement instruments in the bench-top or field-portable class, the PIC32MX470F512L-I/PF integrates a 10-bit 1 Msps ADC, two analog comparators, PMP for external LCD, and USB for PC connectivity in one package. The MIPS32 M4K at 80 MHz performs FFTs, RMS calculations, and UI refresh at high refresh rates. The 512 KB Flash stores calibration tables and UI strings; 128 KB SRAM captures waveform snapshots. Choose PIC32MX470F512L-120/PF if your DSP needs demand 50% more compute.
Recommended
Connected Sensor Hubs / IoT Gateways
The PIC32MX470F512L-I/PF acts as a local sensor hub aggregating I2C, SPI, and analog sensors then forwarding data over USB to a host PC or gateway. The 100-pin TQFP and 80 MHz MIPS core support dozens of sensors concurrently with 2.3-3.6V operation suitable for battery-friendly designs. USB OTG lets the device enumerate as a virtual COM port or HID, removing custom driver work. The 128 KB SRAM accommodates message queues for high-rate sampling without dropping frames.
Recommended
Audio/Graphics Development Prototyping (USB PIM)
Microchip's PIC32MX470F512L 100-pin TQFP USB Plug-In Module (PIM) targets audio and graphics prototyping on the Explorer 16/32 board. The PIC32MX470F512L-I/PF directly mates with this PIM, exposing USB, PMP, and all peripherals to the developer out-of-box. 512 KB Flash and 128 KB SRAM support the entire USB stack plus audio/graphics demo firmware without external memory. Developers benefit from the same firmware portable to volume 100-pin TQFP designs.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX470F512L-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX470F512LT-I/PF | PIC32MX470F512L-120I/PF | PIC32MX460F512L-80I/PT | PIC32MX450F256L-I/PF |
|---|---|---|---|---|---|
| Package | TQFP-100 (PF, 14x14 mm) | TQFP-100 (PF) - same | TQFP-100 (PF) - same | TQFP-100 (PT) - same footprint | TQFP-100 (PF) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 80 MHz | 80 MHz | 120 MHz | 80 MHz | 80 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB (verify) |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG (peripheral-variant) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Highest pin count in the PIC32MX470 family (vs PIC32MX470F512H-I/MR (64-pin QFN))
- Lower power / cooler operation than -120 grade (vs PIC32MX470F512L-120I/PF)
- 512 KB Flash with full peripheral set (vs PIC32MX450F256L-I/PF)
Design Notes
Power the PIC32MX470F512L-I/PF from a clean 3.3V rail. Decouple each VDD/VSS pair with 100 nF ceramic plus a 4.7 uF bulk near the package. For USB designs, derive 3.3V from VBUS via a low-dropout regulator (e.g. MCP1700-3302E) and add a ferrite bead to isolate digital noise. Estimated: at 80 MHz with USB active, peak IDD is around 60-70 mA - confirm via Microchip family datasheet power tables before finalizing the LDO current rating.
Route the USB differential pair (D+ / D-) with 90 ohm differential impedance, matched lengths, and a continuous ground reference plane beneath. Place the 27 ohm series termination resistors near the MCU pins. Keep high-speed traces (I2S, SPI) short and avoid crossing power planes. The 100-pin TQFP (14x14 mm) has generous clearance for hand-routable escape on a 4-layer board.
Do not assume USB VBUS is 5V tolerant at MCU pins - the PIC32MX470F512L operates at 2.3-3.6V; connect VBUS only through proper USB transceiver input pins. The 10-bit ADC accuracy degrades above 1 Msps and on channels shared with digital functions - sample with 0.1 uF hold capacitors externally for high precision. Always enable the JTAG/ICSP pull-ups correctly to avoid accidental reset.
Place a ground guard ring around the analog ADC pins and route them away from switching signals. Use a separate analog ground island tied to digital ground at a single point near the MCU's VSS pins. The PMP bus for graphical LCDs is best routed as parallel-matched traces, with control signals (RD, WR, CS) using series resistors for impedance control.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive, evaluate PIC32MK or SAM E70 family. Halogen-free status not explicitly stated in retrieved data.
