PIC32MX470F512L-120/PT - 32-bit MCU, 120MHz, 512KB Flash | Microchip
MPN: PIC32MX470F512L-120/PT ✓ Hoạt độngPIC32MX470F512L-120/PT Tóm tắt
A 32-bit microcontroller (MCU) is an integrated processor that combines a high-performance CPU core, on-chip memory (Flash for code and SRAM for data), and a rich set of peripherals (ADC, timers, communication controllers) onto a single silicon die. Within the broader semiconductor hierarchy, a 32-bit MCU sits between an 8/16-bit MCU and a microprocessor (MPU); its advantage is integrating deterministic real-time control with enough compute headroom for protocol handling and modest graphics. The PIC32MX3/4 family, including the PIC32MX470F512L, is pin-compatible with most PIC24 and dsPIC DSC devices, easing migration across Microchip's portfolio.
Key features of the PIC32MX470F512L-120/PT include 512 KB of Flash, 128 KB of RAM, up to 82 I/O lines, an on-chip 10-bit ADC with up to 28 input channels, multiple UART, SPI, I2C, and I2S interfaces, two analog comparators, and a 5-bit CTMU for capacitive touch. A Fail-Safe Clock Monitor (FSCM) and multiple interrupt vectors with individually programmable priority support robust real-time systems.
Architecturally, the MIPS32 M4K core is paired with a multi-vector interrupt controller, a peripheral bus bridge, and dedicated DMA, enabling deterministic response while sustaining high throughput. Hardware multiply/divide and a tightly-coupled prefetch buffer reduce instruction-cycle overhead; the bus matrix arbitrates between CPU, DMA, and peripheral traffic.
Typical applications for this part include industrial control and HMI panels, USB device/host bridges, audio playback peripherals using I2S codecs, graphical user interfaces with PMP-driven TFTs, and consumer/embedded products requiring USB connectivity. The wide peripheral mix also suits data loggers, sensor hubs, and low-cost motor control reference platforms. Automotive-grade (-120V) variants extend the family into AEC-Q100 Grade 2 designs.
A core design consideration is that the device operates at 2.3 V to 3.6 V; mixed-voltage peripherals need level shifters. Decoupling, trace impedance for USB DP-99D90/DM lines, and PMP timing closure are the most common board-level issues. JTAG/ICSP pin pairs (PGECx/PGEDx) must be assigned as matched pairs; both VDD/VSS rails must be bypassed per datasheet recommendations.
This page synthesizes Microchip distributor pricing, same-family drop-in alternatives (PIC32MX570F512L, PIC32MX460F512L), and practical design notes not consolidated in the manufacturer's datasheet. Engineers evaluating pin-compatible replacements or sourcing for production will benefit from the structured comparison and decision guidance below.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX470F512L-120/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC32MX470F512L-120/PT (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, I/O Pins, Core Architecture.
PIC32MX460F512L-80I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512L-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512L-120/PF
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX370F512L-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX570F512L-120/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX460F512L-80V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX370F512LT-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512L-120/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K |
| Core Bit Width | 32-bit |
| Maximum CPU Frequency | 120 MHz |
| DMIPS Performance | 150 DMIPS |
| Flash Program Memory | 512 KB |
| SRAM Data Memory | 128 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40C to +105C (industrial) |
| Hộp | 100-pin TQFP (PT) |
| I/O Pins | Up to 82 |
| ADC | 10-bit, up to 28 channels |
| USB Controller | USB 2.0 Full-Speed OTG |
| Communication Interfaces | 2x I2S/SPI, I2C, UART, PMP |
| Analog Comparators | 2 |
| CTMU | 5-bit Charge Time Measurement Unit |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX470F512L-120/PT
| Chân 1 | RG15 — General-purpose I/O / PMP data |
| Chân 2 | RG14 — General-purpose I/O / PMP data |
| Chân 3 | RG13 — General-purpose I/O / SDA2 |
| Chân 4 | RG12 — General-purpose I/O / SCL2 |
| Chân 5 | RG11 — General-purpose I/O |
| Chân 6 | RG10 — General-purpose I/O |
| Chân 7 | RG9 — General-purpose I/O |
| Chân 8 | RG8 — General-purpose I/O |
| Chân 9 | VDD — Supply voltage (2.3V-3.6V) |
| Chân 10 | VSS — Ground |
| Chân 11 | RF0 — General-purpose I/O |
| Chân 12 | RF1 — General-purpose I/O |
| Chân 13 | RF2 — General-purpose I/O / SDA3 |
| Chân 14 | RF3 — General-purpose I/O / SCL3 |
| Chân 15 | RF4 — General-purpose I/O |
| Chân 16 | RF5 — General-purpose I/O |
| Chân 17 | RF6 — General-purpose I/O |
| Chân 18 | RF7 — General-purpose I/O |
| Chân 19 | RF8 — General-purpose I/O |
| Chân 20 | VSS — Ground |
| Chân 21 | VDD — Supply voltage (2.3V-3.6V) |
| Chân 22 | RD0 — General-purpose I/O |
| Chân 23 | RD1 — General-purpose I/O |
| Chân 24 | RD2 — General-purpose I/O |
| Chân 25 | RD3 — General-purpose I/O |
| Chân 26 | RD4 — General-purpose I/O |
| Chân 27 | RD5 — General-purpose I/O |
| Chân 28 | RD6 — General-purpose I/O |
| Chân 29 | RD7 — General-purpose I/O |
| Chân 30 | RD8 — General-purpose I/O |
| Chân 31 | RD9 — General-purpose I/O |
| Chân 32 | RD10 — General-purpose I/O |
| Chân 33 | RD11 — General-purpose I/O |
| Chân 34 | RD12 — General-purpose I/O |
| Chân 35 | RD13 — General-purpose I/O |
| Chân 36 | RD14 — General-purpose I/O |
| Chân 37 | RD15 — General-purpose I/O |
| Chân 38 | VSS — Ground |
| Chân 39 | VDD — Supply voltage (2.3V-3.6V) |
| Chân 40 | RC13 — General-purpose I/O |
| Chân 41 | RC14 — General-purpose I/O / RTCC |
| Chân 42 | RC15 — General-purpose I/O |
| Chân 43 | RB0 — General-purpose I/O / PGED1 |
| Chân 44 | RB1 — General-purpose I/O / PGEC1 |
| Chân 45 | RB2 — General-purpose I/O |
| Chân 46 | RB3 — General-purpose I/O |
| Chân 47 | RB4 — General-purpose I/O |
| Chân 48 | RB5 — General-purpose I/O |
| Chân 49 | RB6 — General-purpose I/O / PGED2 |
| Chân 50 | RB7 — General-purpose I/O / PGEC2 |
| Chân 51 | RB8 — General-purpose I/O |
| Chân 52 | RB9 — General-purpose I/O |
| Chân 53 | RB10 — General-purpose I/O |
| Chân 54 | RB11 — General-purpose I/O |
| Chân 55 | RB12 — General-purpose I/O |
| Chân 56 | RB13 — General-purpose I/O |
| Chân 57 | RB14 — General-purpose I/O |
| Chân 58 | RB15 — General-purpose I/O |
| Chân 59 | VSS — Ground |
| Chân 60 | VDD — Supply voltage (2.3V-3.6V) |
| Chân 61 | RA0 — General-purpose I/O |
| Chân 62 | RA1 — General-purpose I/O |
| Chân 63 | RA2 — General-purpose I/O |
| Chân 64 | RA3 — General-purpose I/O |
| Chân 65 | RA4 — General-purpose I/O |
| Chân 66 | RA5 — General-purpose I/O |
| Chân 67 | RA6 — General-purpose I/O |
| Chân 68 | RA7 — General-purpose I/O |
| Chân 69 | RA9 — General-purpose I/O |
| Chân 70 | RA10 — General-purpose I/O / VREF+ |
| Chân 71 | RA14 — General-purpose I/O / AEREF0 |
| Chân 72 | RA15 — General-purpose I/O |
| Chân 73 | VSS — Ground |
| Chân 74 | VDD — Supply voltage (2.3V-3.6V) |
| Chân 75 | RE0 — General-purpose I/O / PMD0 |
| Chân 76 | RE1 — General-purpose I/O / PMD1 |
| Chân 77 | RE2 — General-purpose I/O / PMD2 |
| Chân 78 | RE3 — General-purpose I/O / PMD3 |
| Chân 79 | RE4 — General-purpose I/O / PMD4 |
| Chân 80 | RE5 — General-purpose I/O / PMD5 |
| Chân 81 | RE6 — General-purpose I/O / PMD6 |
| Chân 82 | RE7 — General-purpose I/O / PMD7 |
| Chân 83 | RE8 — General-purpose I/O |
| Chân 84 | RE9 — General-purpose I/O |
| Chân 85 | VSS — Ground |
| Chân 86 | VDD — Supply voltage (2.3V-3.6V) |
| Chân 87 | RG0 — General-purpose I/O / PMP |
| Chân 88 | RG1 — General-purpose I/O / PMP |
| Chân 89 | RG2 — General-purpose I/O / D+ |
| Chân 90 | RG3 — General-purpose I/O / D- |
| Chân 91 | RG6 — General-purpose I/O |
| Chân 92 | RG7 — General-purpose I/O |
| Chân 93 | RG8 — General-purpose I/O |
| Chân 94 | RG9 — General-purpose I/O |
| Chân 95 | VSS — Ground |
| Chân 96 | VDD — Supply voltage (2.3V-3.6V) |
| Chân 97 | MCLR — Master Clear (reset) input |
| Chân 98 | OSC1 — Crystal oscillator input |
| Chân 99 | OSC2 — Crystal oscillator output |
| Chân 100 | VSS — Ground |
Ứng dụng tiêu biểu
PIC32MX470F512L-120/PT phù hợp cho 7 Áp dụngs: USB Audio Device, Graphical HMI with TFT LCD, Industrial Sensor Hub / Data Logger, USB Device / Host Bridge, Capacitive Touch Control Panel, Audio Playback with I2S Codec, Low-Cost Motor Control Reference Platform.
USB Audio Device
The PIC32MX470F512L-120/PT integrates a USB 2.0 Full-Speed OTG controller alongside two I2S/SPI modules and 128 KB of SRAM, making it well-suited for USB audio peripherals such as USB headsets, USB DACs, and USB-to-I2S bridges. With 120 MHz / 150 DMIPS of MIPS32 M4K performance, the device can run a USB audio class driver, manage DMA-fed I2S streams, and handle HID volume controls simultaneously. Its 512 KB Flash is enough to host a full USB stack plus application firmware, while the 10-bit ADC supports auxiliary analog monitoring. Power consumption can be tuned through Microchip's idle/sleep modes, allowing battery-friendly operation for portable audio use cases.
Được đề xuất
Graphical HMI with TFT LCD
With a Parallel Master Port (PMP) capable of driving TFT LCDs and 120 MHz of CPU headroom, the PIC32MX470F512L-120/PT serves as the host MCU for graphical human-machine interfaces (HMIs) in industrial control panels and appliances. The 128 KB SRAM is enough for small frame buffers, while the 512 KB Flash can host Microchip's graphics library plus application code. Peripheral Pin Select (PPS) reassigns digital functions to nearly any I/O, simplifying PCB routing for touch and display. CTMU enables capacitive touch sensing for buttons and sliders behind the cover glass, reducing mechanical parts.
Được đề xuất
Industrial Sensor Hub / Data Logger
The PIC32MX470F512L-120/PT's 10-bit ADC with up to 28 input channels, two analog comparators, and multiple UART/SPI/I2C ports enable multi-sensor aggregation in industrial monitoring equipment. Industrial -40C to +105C temperature rating supports factory floor deployments. With 120 MHz of compute, the device can sample, condition, and timestamp sensor data into a local buffer before forwarding via UART, SPI, or USB. CTMU extends the analog front-end to capacitive and ratiometric measurements (e.g., temperature, humidity, strain). Fail-Safe Clock Monitor (FSCM) maintains deterministic behavior even under noisy power conditions.
Được đề xuất
USB Device / Host Bridge
The integrated USB 2.0 OTG controller supports both USB device and limited host roles, allowing the PIC32MX470F512L-120/PT to act as a USB-serial/UART/SPI bridge between a host PC and legacy peripherals. The 120 MHz core handles the full-speed USB protocol stack, while 512 KB Flash hosts CDC/ACM, HID, or vendor-class firmware. Industrial temperature rating and 2.3V-3.6V operation suit embedded installations. PPS flexibility keeps board routing dense even when exposing USB alongside UART, I2C, and GPIO.
Được đề xuất
Capacitive Touch Control Panel
The PIC32MX470F512L-120/PT integrates a Charge Time Measurement Unit (CTMU) that simplifies capacitive touch sensing for buttons, sliders, and proximity wake-up. Combined with Peripheral Pin Select and the 100-pin TQFP's high I/O count, the device supports multi-zone touch panels behind glass or plastic overlays without dedicated touch ICs. The 120 MHz CPU runs Microchip's mTouch firmware libraries and processes gestures in real time. 128 KB SRAM is enough for touch state machines and debounce buffers. Industrial temperature rating suits kitchen, automotive, and outdoor use.
Được đề xuất
Audio Playback with I2S Codec
Two I2S/SPI modules on the PIC32MX470F512L-120/PT let designers connect external audio codecs for stereo playback and recording. 128 KB SRAM is sufficient for buffer-based audio streaming using DMA-fed I2S, while 512 KB Flash holds audio decoders such as MP3 or WAV. The 120 MHz MIPS32 M4K core sustains decoding and DMA servicing concurrently without dropping samples. CTMU and the ADC add auxiliary analog inputs for line-level monitoring. Industrial temperature and 2.3-3.6V operation support consumer audio docks and intercom units.
Được đề xuất
Low-Cost Motor Control Reference Platform
The PIC32MX470F512L-120/PT's combination of 120 MHz CPU, PWM-capable timers, ADCs, and quadrature encoder interfaces enables a low-cost brushless DC or stepper motor control platform. The MIPS32 M4K core runs FOC or trapezoidal commutation algorithms in real time, while PPS routes peripheral functions to convenient pins. Industrial temperature rating suits motor enclosures. 512 KB Flash fits reference algorithms plus tuning parameters. Designers can prototype using Microchip's motor control libraries and migrate to a smaller PIC32MX variant for production.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX470F512L-120/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC32MX460F512L-80I/PT | PIC32MX470F512L-I/PT | PIC32MX570F512L-120/PT | PIC32MX370F512L-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (PT) 12x12 mm | 100-pin TQFP (PT) 12x12 mm - same | 100-pin TQFP (PT) 12x12 mm - same | 100-pin TQFP (PT) 12x12 mm - same | 100-pin TQFP (PT) 12x12 mm - same |
| Maximum CPU Clock | 120 MHz | 80 MHz (-33%) | 80 MHz (-33%) | 120 MHz (same) | 80 MHz (-33%) |
| Flash Program Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM Data Memory | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) |
| USB Controller | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG |
| Operating Temperature | -40C to +105C | -40C to +85C | -40C to +105C | -40C to +105C | -40C to +105C |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| Approx. Unit Price (qty-1) | $8.92 | $7.60 | $8.10 | $9.50 | $7.40 |
Bảo phân biệt quan trọng
- Highest-speed grade in the PIC32MX470 family at 120 MHz / 150 DMIPS (vsPIC32MX460F512L-80I/PT)
- Full SRAM complement of 128 KB vs reduced 64 KB in lower-spec siblings (vsPIC32MX370F512L-I/PT)
- Industrial -40C to +105C temperature range vs commercial 0C to +70C on I-suffix siblings (vsPIC32MX470F512L-120V/PT)
- Pin-compatible upgrade path to PIC32MX570 with expanded peripherals (vsPIC32MX570F512L-120/PT)
Ghi chú thiết kế
The PIC32MX470F512L-120/PT operates from a single 2.3 V to 3.6 V supply rail. Place a 0.1 uF decoupling capacitor as close as possible to each VDD pin (the 100-pin TQFP has six VDD pins and six VSS pins distributed around the package). A bulk 10 uF tantalum or ceramic capacitor on the main supply rail is recommended. If using the on-chip voltage regulator for the core, follow the Microchip reference schematic for the 1 uF/470 nF regulator output capacitor network; the exact value depends on whether you select the internal or external regulator mode.
USB DP/DM lines (RG2/RG3) must be routed as a 90 ohm differential pair with matched length and a continuous ground reference. Avoid stubs; place the USB series termination resistors close to the MCU. Keep crystal traces (OSC1/OSC2) short and surrounded by ground pour. For PMP-driven TFTs, route data/control lines together with matched lengths and isolate them from analog ADC inputs (RA0-RA15) with a ground barrier to reduce switching noise coupling into ADC readings.
ICSP/JTAG requires matched PGECx/PGEDx pairs - using PGEC2 without PGED2 (or vice versa) breaks in-circuit programming. Both VDD and VSS pins must be properly bypassed; floating any VDD pin causes unpredictable behavior. The MCLR pin requires a 10 kohm pull-up to VDD and a 100 nF cap to ground for reset stability. Programming voltage must NOT exceed 3.6 V on MCLR; applying 5 V to MCLR can damage the device on later silicon revisions.
The 100-pin TQFP (PT) package has limited thermal dissipation compared to QFN packages; at 120 MHz and high I/O toggle rates, junction temperature can rise noticeably. Estimated: at typical 50 MHz peripheral bus activity and 60 MHz CPU load, junction-to-ambient thermal resistance theta_JA is approximately 50 C/W, allowing up to ~1 W dissipation before exceeding the +105C industrial limit. Ensure the PCB layout includes a solid ground pour under the TQFP exposed die pad (where present) to maximize heat spreading.
PPS (Peripheral Pin Select) remaps digital peripherals to most I/O pins, but analog functions (ADC, comparators, CTMU) are fixed to specific pins. Plan the analog front-end around the fixed analog pin assignments first, then use PPS to route digital functions around the analog pins. For capacitive touch using CTMU, dedicated CTMU channels must be used; shared analog pins may have settling time considerations that affect touch accuracy. Add small RC filters on analog inputs in high-noise environments.
Thông tin tuân thủ
RoHS compliant per Microchip product page. The PIC32MX470F512L-120/PT (standard -120 grade) is industrial temp grade, not AEC-Q100; the automotive -120V variant is AEC-Q100 Grade 2 qualified.
