PIC32MX470F512HT-I/PT - 80MHz 512KB Flash 32-bit MCU | Microchip
MPN: PIC32MX470F512HT-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.16 | $7.16 |
| 10 | $6.32 | $63.20 |
| 100 | $5.41 | $541.00 |
| 500 | $4.72 | $2,360.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC32MX470F512HT-I/PT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and programmable peripherals into one package. The PIC32MX family places the MCU in the hierarchy: microcontroller -> embedded processor -> system-on-chip -> semiconductor, and is widely used wherever deterministic real-time control meets the need for substantial code space and connectivity peripherals.
Key features include two 10-bit ADCs with up to 28 analog input channels, five 16-bit timers, five PWM outputs, four UART modules, two SPI/I2S interfaces, two I2C buses, two analog comparators, a Real-Time Clock and Calendar (RTCC), and a Charge Time Measurement Unit (CTMU) for capacitive touch sensing. The 49 digital I/O pins (with 28 analog-capable) make the device well suited to mixed-signal and human-interface designs. USB 2.0 full-speed support and a parallel master port (PMP) expand connectivity to external memory, graphics, or PC hosts.
Technically, the device is built on a CMOS process with the MIPS32 M4K core delivering 1.56 DMIPS/MHz. The PIC32MX3/4 family architecture provides single-cycle flash access, a hardware multiply/divide unit, and an 8-channel DMA controller that offloads data movement from the CPU. The dual-I2S block and dual SPI enable simultaneous audio and display interfaces without CPU intervention.
Typical applications include industrial control (PLC I/O modules, sensor hubs), consumer electronics (home appliances with capacitive touch), USB peripherals (HID, CDC), audio accessories (USB speakers, soundbars), graphical user interfaces (PMP-driven TFT panels), and medical instrumentation (portable monitoring). The 512 KB Flash also supports connectivity stacks (TCP/IP via MLA libraries) and OTA-capable firmware.
When designing with the PIC32MX470F512HT-I/PT, ensure the 2.3 V to 3.6 V supply is decoupled with 100 nF + 10 uF close to each VDD pin, and route the analog AVdd separately for ADC accuracy. The "T" suffix denotes tape-and-reel packaging, and the "-I" industrial temperature grade means -40C to +85C operation.
This page synthesizes distributor pricing, pin-compatible PIC32MX drop-in alternatives, and practical design notes that augment the manufacturer datasheet with engineering context relevant to BOM consolidation and long-term availability planning.
Drop-in alternatives for PIC32MX470F512HT-I/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 PIC32MX470F512HT-I/PT (same form factor and footprint) — differing in ADC, Package, USB, Maximum CPU Frequency, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX470F512HT-120/PT
✅ Drop-In✓ In Stock
$5.55 / Unit
View Datasheet →PIC32MX470F512H-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX470F512HT-120I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX470F512HT-120V/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX570F512L-I/PT
✅ Drop-In✓ In Stock
$4.82 / Unit
View Datasheet →PIC32MX470F512HT-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Data Bus Width | 32-bit |
| Maximum CPU Speed | 80 MHz (100 MHz headroom) |
| Performance | 1.56 DMIPS/MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 128 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Digital I/O Pins | 49 |
| ADC | 2x 10-bit, 28 channels |
| Timers | 5x 16-bit |
| PWM Outputs | 5 |
| UART | 4 |
| SPI / I2S | 2 / 2 |
| I2C | 2 |
| Analog Comparators | 2 |
| RTCC | Yes |
| CTMU (Capacitive Touch) | Yes |
| USB | USB 2.0 Full-Speed |
| DMA Channels | 8 |
| Parallel Master Port (PMP) | Yes |
| RoHS Status | Compliant |
PIC32MX470F512HT-I/PT Pin Configuration
| Pin 1 | SOCK1/RPG6/PMA0 — I/O port, PMP address line |
| Pin 2 | RPG7/PMA1 — I/O port, PMP address line |
| Pin 3 | RPG8/PMA2 — I/O port, PMP address line |
| Pin 4 | RPG9/PMCS1 — I/O port, PMP chip select 1 |
| Pin 5 | VSS — Ground |
| Pin 6 | OSC1/CLKI/RC12 — Crystal oscillator input / external clock |
| Pin 7 | OSC2/CLKO/RC15 — Crystal oscillator output |
| Pin 8 | VSS — Ground |
| Pin 9 | VDD — Supply voltage 2.3V-3.6V |
| Pin 10 | RB0/PGED3 — I/O port, programming data |
| Pin 11 | RB1/PGEC3 — I/O port, programming clock |
| Pin 12 | RB2/AN2/C1IND — I/O port, analog input 2, comparator 1 input D |
| Pin 13 | RB3/AN3/C1INC — I/O port, analog input 3, comparator 1 input C |
| Pin 14 | RA0/TMS — I/O port, JTAG test mode select |
| Pin 15 | RA1/TCK — I/O port, JTAG test clock |
| Pin 16 | RA2/TDI — I/O port, JTAG test data in |
| Pin 17 | RA3/TDO — I/O port, JTAG test data out |
| Pin 18 | RA4 — I/O port |
| Pin 19 | AVDD — Analog supply voltage |
| Pin 20 | AVSS — Analog ground |
| Pin 21 | RB4/AN4/C2IND — I/O port, analog input 4 |
| Pin 22 | RB5/AN5/C2INC — I/O port, analog input 5 |
| Pin 23 | RB6/AN6 — I/O port, analog input 6 |
| Pin 24 | RB7/AN7 — I/O port, analog input 7 |
| Pin 25 | RB8/AN8 — I/O port, analog input 8 |
| Pin 26 | RB9/AN9 — I/O port, analog input 9 |
| Pin 27 | VSS — Ground |
| Pin 28 | VDD — Supply voltage |
| Pin 29 | RB10/AN10/CVREF — I/O port, analog input 10, comparator voltage reference |
| Pin 30 | RB11/AN11 — I/O port, analog input 11 |
| Pin 31 | RB12/AN12 — I/O port, analog input 12 |
| Pin 32 | RB13/AN13 — I/O port, analog input 13 |
| Pin 33 | RB14/AN14 — I/O port, analog input 14 |
| Pin 34 | RB15/AN15/OCFB — I/O port, analog input 15, output compare fault B |
| Pin 35 | VSS — Ground |
| Pin 36 | RC1/T2CK — I/O port, Timer2 clock input |
| Pin 37 | RC2/T3CK — I/O port, Timer3 clock input |
| Pin 38 | RC3 — I/O port |
| Pin 39 | RC4 — I/O port |
| Pin 40 | VDD — Supply voltage |
| Pin 41 | VSS — Ground |
| Pin 42 | RD0 — I/O port D0 |
| Pin 43 | RD1 — I/O port D1 |
| Pin 44 | RD2 — I/O port D2 |
| Pin 45 | RD3 — I/O port D3 |
| Pin 46 | RC13/SOSCO — I/O port, secondary oscillator output |
| Pin 47 | RC14/SOSCI — I/O port, secondary oscillator input |
| Pin 48 | RD4 — I/O port D4 |
| Pin 49 | RD5 — I/O port D5 |
| Pin 50 | RD6 — I/O port D6 |
| Pin 51 | RD7 — I/O port D7 |
| Pin 52 | RC5/OC5 — I/O port, output compare 5 |
| Pin 53 | RC6/OC6 — I/O port, output compare 6 |
| Pin 54 | RC7 — I/O port |
| Pin 55 | RC8 — I/O port |
| Pin 56 | RC9 — I/O port |
| Pin 57 | RC10 — I/O port |
| Pin 58 | RC11 — I/O port |
| Pin 59 | RD8/RTCC — I/O port, RTCC output |
| Pin 60 | RD9 — I/O port |
| Pin 61 | MCLR — Master clear reset (active low) |
| Pin 62 | VDD — Supply voltage |
| Pin 63 | VSS — Ground |
| Pin 64 | RE0 — I/O port E0 |
Typical Applications
PIC32MX470F512HT-I/PT is suitable for 7 applications: Industrial Control & Sensor Hubs, USB Peripherals (HID, CDC, MSD), Capacitive Touch User Interfaces, Audio Accessories & Soundbars, Graphical User Interfaces (TFT Panels), Portable Medical Instrumentation, Home Appliances & White Goods.
Industrial Control & Sensor Hubs
The PIC32MX470F512HT-I/PT fits industrial PLC I/O modules and sensor-hub designs where deterministic 32-bit processing, 512 KB of code space, and multi-protocol connectivity must coexist on one chip. The two 10-bit ADCs sweep 28 channels at up to 1 Msps aggregate, while five PWM channels drive motor or actuator stages. Four UARTs plus two SPI/I2S and two I2C buses let the MCU aggregate field sensors (RS-485, CAN via SPI MCP2515, I2C temp sensors) without external bus expanders. The 80 MHz MIPS32 M4K core delivers 1.56 DMIPS/MHz, enough for closed-loop PID plus Modbus RTU handling on a single device.
Recommended
USB Peripherals (HID, CDC, MSD)
The PIC32MX470F512HT-I/PT integrates a USB 2.0 Full-Speed (12 Mbps) controller with on-chip transceiver, eliminating the need for an external PHY and saving roughly $0.30 to $0.50 BOM cost. The 128 KB SRAM comfortably holds USB class driver buffers (HID report descriptors, CDC line-coding state) plus application firmware, while 512 KB Flash accommodates USB stacks from MLA or MPLAB Harmony. Industrial temp -40C to +85C allows deployment in point-of-sale terminals, USB data loggers, and instrumentation. Designers should add 100 nF + 10 uF decoupling near VUSB and follow Microchip USB layout guidelines (90-ohm differential, 4-layer stackup).
Recommended
Capacitive Touch User Interfaces
The PIC32MX470F512HT-I/PT's CTMU (Charge Time Measurement Unit) converts up to 28 analog-capable pins into capacitive touch electrodes without an external touch IC. This lets designers replace mechanical buttons with sliders, wheels, and proximity sensors in appliances, white goods, and access-control panels. The 80 MHz core handles Debounce, gesture, and backlight-management algorithms in real time, and the rich peripheral set (PWM for LED backlights, I2C for display drivers, RTCC for time-stamping events) consolidates what used to require two MCUs. Reference firmware is available from Microchip's mTouch library.
Recommended
Audio Accessories & Soundbars
The PIC32MX470F512HT-I/PT's dual I2S ports plus USB Full-Speed make it a practical front-end MCU for USB speakers, soundbars, and headphone amps. I2S delivers bit-clock-perfect digital audio to an external DAC or class-D amp, while USB streams PCM data from a PC or phone. The DMA controller offloads audio block transfers so the 80 MHz core is free for DSP-style processing (basic EQ, loudness, mixing). With 512 KB Flash there is room for USB audio class firmware plus DSP algorithms; 128 KB SRAM buffers multi-channel audio without external memory. Industrial temperature grade supports automotive infotainment auxiliary inputs.
Recommended
Graphical User Interfaces (TFT Panels)
The PIC32MX470F512HT-I/PT drives small TFT panels through its Parallel Master Port (PMP), which can map to 8-bit or 16-bit 8080/6800 interfaces at up to 25 MHz. Combined with the 8-channel DMA and 80 MHz CPU, this allows smooth menus and 2D widgets without an external graphics controller. The 49 digital I/O pins leave enough headroom for touch-sensing overlays, backlight PWM, and SD-card data storage. Designers can leverage Microchip's MLA graphics library (with anti-aliased fonts and BMP rendering) to keep code within the 512 KB Flash budget while leaving room for the application.
Recommended
Portable Medical Instrumentation
The PIC32MX470F512HT-I/PT serves in portable medical monitoring devices (pulse oximeters, digital thermometers, ambulatory ECG front-ends) where low power, integrated peripherals, and reliability matter more than raw throughput. The CTMU enables capacitive touch on sealed front panels, the dual 10-bit ADC reads sensor analog front-ends, and the RTCC timestamps clinical events. With 2.3 V to 3.6 V operation, the device can run directly from a single Li-ion cell with a buck-boost regulator. The industrial temperature grade and Microchip's longevity commitment for the PIC32MX family make this part suitable for medical designs with long product lifecycles.
Recommended
Home Appliances & White Goods
The PIC32MX470F512HT-I/PT targets high-end home appliances (induction cooktops, washing machines, dishwasher control boards) where the combination of capacitive touch, motor-control PWM, and a rich UI is essential. Five PWM outputs drive inverter stages for variable-speed BLDC motors, while the dual ADC handles current sensing and temperature feedback. The 512 KB Flash stores advanced control algorithms (sensorless FOC, power-factor correction) plus UI strings and OTA-ready bootloaders. Industrial temperature rating -40C to +85C supports under-hood and outdoor appliance installations.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX470F512HT-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX470F512HT-120/PT | PIC32MX470F512H-I/PT | PIC32MX470F512HT-120I/PT | PIC32MX570F512L-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) |
| Maximum CPU Speed | 80 MHz | 100 MHz (+25%) | 80 MHz | 100 MHz (+25%) | 120 MHz (+50%) |
| Operating Temperature | -40C to +85C | 0C to +70C (commercial) | -40C to +85C | -40C to +85C | -40C to +85C |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed + HS |
| ADC | 2x 10-bit, 28 channels | 2x 10-bit, 28 channels | 2x 10-bit, 28 channels | 2x 10-bit, 28 channels | 2x 10-bit, 28 channels |
| Approx. Unit Price (qty 1) | $7.16 | $7.50 (approx) | $7.20 (approx) | $8.00 (approx) | $8.40 (approx) |
Key Differentiators
- Combines CTMU capacitive touch + USB 2.0 Full-Speed on a single die (vs PIC32MX460F512LT-80I/PT)
- Highest SRAM in its speed/temperature class (vs PIC32MX570F512L-I/PT)
- 5 PWM outputs + dual analog comparators for motor control (vs PIC32MX350F256H-I/PT (256KB Flash, similar 64-pin TQFP))
Design Notes
Decouple the PIC32MX470F512HT-I/PT with one 100 nF ceramic + one 10 uF ceramic placed within 5 mm of each VDD/AVDD pin pair. According to Microchip PIC32MX470 datasheet section "Decoupling", the analog AVDD rail must be filtered with a ferrite bead or 10 ohm resistor from VDD to keep ADC noise below 1 LSB. Bulk 47 uF tantalum or polymer on each supply rail. Avoid switching the core frequency above 80 MHz on this speed grade - per the datasheet electrical characteristics, exceeding this reduces reliability at the lower VDD end of 2.3 V.
Route the 28 analog-capable pins (RB0-RB15, RA0-RA4) away from switching signals and PWM outputs to minimize ADC crosstalk. The Microchip PIC32MX3/4 hardware layout checklist recommends a ground pour under the analog section tied to AVSS, with separate analog and digital ground planes joined at one point. Place the 32.768 kHz crystal within 5 mm of SOSCI/SOSCO pins and guard the traces with a ground fence for the RTCC. The USB D+/D- lines must be a 90-ohm differential pair with maximum 3 mm length mismatch.
Do not connect MCLR directly to VDD; use a 10 kohm pull-up to VDD and a 100 nF to ground for proper reset behavior. Avoid programming mode entry by keeping PGECx/PGEDx traces short. Per the PIC32MX470 errata, revisions earlier than silicon A2 have an ADC offset issue that requires the OFFSET_TRIM register to be loaded from factory constants in the device config - check the errata sheet for your silicon revision. The CTMU module needs calibration via CTMU calibration routine in firmware before use.
The TQFP-64 package has a typical theta-JA of approximately 50 C/W on a 4-layer 1-oz PCB, dropping to 35 C/W with a 2-square-inch copper pad under the package. At maximum core activity (80 MHz, all peripherals active, USB streaming), typical power dissipation is 70 mW to 100 mW - well within industrial temperature limits. For closed enclosures, derate ambient temperature by 5C to 10C above 60C. Industrial -40C to +85C grade means junction must stay below +125C; design margin should keep Tj under +105C for long-life operation.
Compliance Information
RoHS and lead-free per Microchip product page. Industrial temperature grade -40C to +85C. No AEC-Q100 qualification - automotive designs should consult Microchip's PIC32MX1xx/2xx automotive family.
