PIC32MX470F512LT-120/PF - 120MHz 32-bit MCU 512KB Flash | Microchip
MPN: PIC32MX470F512LT-120/PF ✓ Hoạt độngPIC32MX470F512LT-120/PF Tóm tắt
Background Knowledge - what is a 32-bit MCU? A 32-bit microcontroller is a single-chip processor with a 32-bit data path, registers, and ALU, providing higher throughput, larger address space, and richer peripheral integration than 8-bit or 16-bit alternatives. Within the broader semiconductor taxonomy, PIC32MX devices are flash-based general-purpose MCUs that sit between 16-bit dsPIC and 32-bit SAM families. They are commonly deployed where an 8-bit MCU lacks headroom but a full application processor is unnecessary.
Key features of the PIC32MX470F512LT-120/PF include a 5-stage pipelined MIPS32 M4K core with MIPS16e code compression (up to 40% smaller code), a 10-bit ADC with up to 28 analog input channels, two comparators, two I2C and two SPI/I2S ports, four UART modules, USB 2.0 full-speed On-The-Go (OTG), five PWM channels, two DMA channels, a 16-bit Parallel Master Port (PMP/EPMP) for graphics or external memory, CTMU for capacitive touch, RTCC with calendar, and Idle/Sleep low-power modes. It operates from 2.3 V to 3.6 V across the -40 C to +105 C industrial temperature range.
Architecture and process - the device uses a 5-stage pipeline that allows single-cycle Flash access with prefetch, a multi-vectored interrupt controller, and an integrated 8 MHz FRC oscillator with PLL options up to 120 MHz. The peripheral set is accessed via separate APB and AHB-style buses, with DMA offload for ADC, UART, SPI, and I2C transactions. Code is executed directly from Flash with a prefetch cache, eliminating external memory for most embedded GUI and audio applications.
Typical applications include industrial HMI with TFT-LCD panels, USB peripherals (HID, CDC, mass storage), audio processing up to MP3/AAC decode, capacitive touch keypads, IoT edge nodes with USB debugging, and graphical control panels on appliances and instrumentation. The combination of USB OTG and PMP graphics makes this MCU a popular choice for low-cost graphical HMI front panels.
When designing with the PIC32MX470F512LT-120/PF, place decoupling capacitors (100 nF + bulk) close to every VDD/VSS pair, route the 12 MHz crystal traces symmetrically with grounded guard, and keep the USB DP/DM differential pair length-matched within 150 mil. The PMP data bus should be series-terminated if the panel cable exceeds 50 mm. MPLAB X IDE plus XC32 compiler provides a free toolchain.
This page consolidates pricing tiers, drop-in PIC32MX alternatives, and design notes not found in the manufacturer datasheet to accelerate your design-in.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX470F512LT-120/PF — 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 PIC32MX470F512LT-120/PF (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature Range, USB, I/O Pins.
PIC32MX470F512L-120/PF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX470F512L-120/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512LT-120/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512LT-I/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX370F512LT-120/PF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX450F256LT-120/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512LT-120/PF Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 120 MHz |
| DMIPS Performance | 150 DMIPS |
| Program Flash Memory | 512 KB |
| SRAM | 128 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 C to +105 C |
| Hộp | 100-pin TQFP (14x14 mm, 0.4 mm pitch) |
| Kiểu lắp đặt | Surface Mount |
| Shipping Form | Tape & Reel (T suffix) |
| ADC | 10-bit, up to 28 channels |
| Comparators | 2 |
| UART Modules | 4 |
| SPI / I2S Modules | 2 |
| I2C Modules | 2 |
| USB | USB 2.0 Full-Speed OTG |
| PWM Channels | 5 |
| DMA Channels | 2 |
| Parallel Master Port | PMP/EPMP for graphics or external memory |
| Code Compression | MIPS16e (up to 40% code-size reduction) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX470F512LT-120/PF
| Chân 1 | RP15/RD15 — Remappable I/O / PMP data bit |
| Chân 2 | RP14/RD14 — Remappable I/O / PMP data bit |
| Chân 3 | SDA2/RA2 — I2C2 data or GPIO |
| Chân 4 | SCL2/RA3 — I2C2 clock or GPIO |
| Chân 5 | RA4 — GPIO / OC5 |
| Chân 6 | RA5 — GPIO / Timer |
| Chân 7 | RA6 — GPIO |
| Chân 8 | RA7 — GPIO |
| Chân 9 | RB0 — GPIO / OC1 / CTED1 |
| Chân 10 | RB1 — GPIO / OC2 |
| Chân 11 | RB2 — GPIO / OC3 |
| Chân 12 | TMS/RA0 — JTAG TMS / GPIO |
| Chân 13 | TCK/RA1 — JTAG TCK / GPIO |
| Chân 14 | TDI/RB13 — JTAG TDI / GPIO |
| Chân 15 | TDO/RB12 — JTAG TDO / GPIO |
| Chân 16 | VBUS — USB VBUS detect |
| Chân 17 | VUSB — USB 3.3V LDO output (10 uF bypass required) |
| Chân 18 | D- — USB D- |
| Chân 19 | D+ — USB D+ |
| Chân 20 | VDD — Core supply (decouple 100 nF + bulk) |
| Chân 21 | VSS — Ground |
| Chân 22 | RC1 — GPIO / OC4 |
| Chân 23 | RC2 — GPIO / OC5 |
| Chân 24 | RC3 — GPIO |
| Chân 25 | RC4 — GPIO |
| Chân 26 | VSS — Ground |
| Chân 27 | VDD — I/O supply (2.3-3.6 V) |
| Chân 28 | OSC1/RC12 — Crystal input / external clock |
| Chân 29 | OSC2/RC13 — Crystal output |
| Chân 30 | RC14 — GPIO |
| Chân 31 | RC15 — GPIO |
| Chân 32 | RD0 — Remappable I/O |
| Chân 33 | RD1 — Remappable I/O |
| Chân 34 | RD2 — Remappable I/O |
| Chân 35 | RD3 — Remappable I/O |
| Chân 36 | RD4 — Remappable I/O |
| Chân 37 | RD5 — Remappable I/O |
| Chân 38 | RD6 — Remappable I/O |
| Chân 39 | RD7 — Remappable I/O |
| Chân 40 | RE0 — GPIO / PWM |
| Chân 41 | RE1 — GPIO / PWM |
| Chân 42 | RE2 — GPIO / PWM |
| Chân 43 | RE3 — GPIO |
| Chân 44 | RE4 — GPIO |
| Chân 45 | RE5 — GPIO |
| Chân 46 | RE6 — GPIO |
| Chân 47 | RE7 — GPIO |
| Chân 48 | VSS — Ground |
| Chân 49 | VDD — I/O supply |
| Chân 50 | RF0 — Remappable I/O |
| Chân 51 | RF1 — Remappable I/O |
| Chân 52 | RF2 — Remappable I/O / DAC1 |
| Chân 53 | RF3 — Remappable I/O / DAC2 |
| Chân 54 | RF4 — Remappable I/O |
| Chân 55 | RF5 — Remappable I/O |
| Chân 56 | RG0 — GPIO |
| Chân 57 | RG1 — GPIO |
| Chân 58 | RG2 — GPIO / D+ for USB Host |
| Chân 59 | RG3 — GPIO / D- for USB Host |
| Chân 60 | RG6 — GPIO |
| Chân 61 | RG7 — GPIO |
| Chân 62 | RG8 — GPIO |
| Chân 63 | RG9 — GPIO |
| Chân 64 | VSS — Ground |
| Chân 65 | VDD — I/O supply |
| Chân 66 | RH0 — Remappable I/O |
| Chân 67 | RH1 — Remappable I/O |
| Chân 68 | RH2 — Remappable I/O |
| Chân 69 | RH3 — Remappable I/O |
| Chân 70 | RH4 — Remappable I/O |
| Chân 71 | RH5 — Remappable I/O |
| Chân 72 | RH6 — Remappable I/O |
| Chân 73 | RH7 — Remappable I/O |
| Chân 74 | RH8 — Remappable I/O |
| Chân 75 | RH9 — Remappable I/O |
| Chân 76 | RH10 — Remappable I/O |
| Chân 77 | RH11 — Remappable I/O |
| Chân 78 | RJ0 — GPIO |
| Chân 79 | RJ1 — GPIO |
| Chân 80 | RJ2 — GPIO |
| Chân 81 | RJ3 — GPIO |
| Chân 82 | VSS — Ground |
| Chân 83 | VDD — I/O supply |
| Chân 84 | RK0 — GPIO / PMP data |
| Chân 85 | RK1 — GPIO / PMP data |
| Chân 86 | RK2 — GPIO / PMP data |
| Chân 87 | RK3 — GPIO / PMP data |
| Chân 88 | RK4 — GPIO / PMP data |
| Chân 89 | RK5 — GPIO / PMP data |
| Chân 90 | RK6 — GPIO / PMP data |
| Chân 91 | RK7 — GPIO / PMP data |
| Chân 92 | RL0 — GPIO |
| Chân 93 | RL1 — GPIO |
| Chân 94 | RL2 — GPIO |
| Chân 95 | RL3 — GPIO |
| Chân 96 | SDA1/RA15 — I2C1 data or GPIO |
| Chân 97 | SCL1/RA14 — I2C1 clock or GPIO |
| Chân 98 | MCLR — Master clear reset (pull-up 10 kohm required) |
| Chân 99 | ENVREG — Voltage regulator enable (tie to VDD) |
| Chân 100 | VSS — Ground |
Ứng dụng tiêu biểu
PIC32MX470F512LT-120/PF phù hợp cho 6 Áp dụngs: Industrial HMI with TFT-LCD Graphics, USB Peripherals and HID Devices, Capacitive Touch Keypads, Audio Decoding and Playback, IoT Edge Nodes with USB Debug, Appliance Control Panels.
Industrial HMI with TFT-LCD Graphics
The PIC32MX470F512LT-120/PF is a strong fit for industrial HMI front panels that drive small TFT-LCD displays up to WQVGA (480x272) resolution. Its PMP/EPMP controller can directly interface with most 8080/6800 parallel TFT-LCDs, and the 128 KB SRAM provides enough framebuffer for full-color WQVGA displays. Designers typically route the 16-bit PMP data bus on the top layer with matched traces and add a 33 ohm series-termination resistor per the Microchip PIC32MX reference design.
Được đề xuất
USB Peripherals and HID Devices
The PIC32MX470F512LT-120/PF integrates a USB 2.0 Full-Speed On-The-Go controller with internal transceiver, which is ideal for USB keyboards, mice, custom HID game controllers, CDC serial adapters, and USB mass-storage bridges. The MPLAB Harmony USB stack provides ready-to-use HID, CDC, MSD, and Vendor class drivers. Designers must add 15 kohm pull-down resistors on D+ and D- and a 10 uF bulk on VUSB per the USB 2.0 spec.
Được đề xuất
Capacitive Touch Keypads
The PIC32MX470F512LT-120/PF integrates a CTMU (Charge Time Measurement Unit) hardware block for accurate time-domain capacitive sensing, supporting up to 32 touch buttons or a small matrix touch panel. Combined with the 28-channel 10-bit ADC, designers can build sealed-glass front-panel keypads for appliances, medical instruments, and industrial controls. The MPLAB Harmony Touch library implements projected-capacitive and self-capacitive scanning patterns.
Được đề xuất
Audio Decoding and Playback
The PIC32MX470F512LT-120/PF has 150 DMIPS of compute headroom that is sufficient for software-decoded MP3, AAC-LC, and Ogg Vorbis playback from external SD card or SPI Flash. The two I2S ports support direct connection to audio DACs like the TI PCM5102A or TI PCM1774. Designers typically use DMA to stream audio blocks into the I2S transmit buffer, leaving CPU cycles for UI updates. 128 KB SRAM allows 8 KB buffer for sample-rate conversion plus 16 KB for USB stack and UI.
Được đề xuất
IoT Edge Nodes with USB Debug
The PIC32MX470F512LT-120/PF is well suited for USB-debugged IoT edge nodes that connect to a host PC for firmware update and telemetry log streaming. The USB OTG port can switch between device and host mode, enabling USB-Host-to-Wi-Fi dongle or USB-Host-to-NAND bridges. Combined with the four UART and two I2C, the MCU easily aggregates sensor data from external sensors and ships the payload over USB.
Được đề xuất
Appliance Control Panels
The PIC32MX470F512LT-120/PF runs a graphical UI on a small TFT-LCD and drives motor-control PWM outputs for appliances such as coffee machines, washing machines, and induction cooktops. The five PWM channels can drive MOSFET bridges through gate drivers, while the four UARTs handle sensor and inverter feedback. Industrial -40 C to +105 C temperature grade allows placement near power stages.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX470F512LT-120/PF — 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 | PIC32MX470F512L-120/PF | PIC32MX470F512LT-120/PT | PIC32MX470F512LT-I/PF | PIC32MX370F512LT-120/PF | PIC32MX450F256LT-120/PF |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (14x14 mm) | TQFP-100 (14x14) - same | TQFP-100 (12x12) - PCB pad differs | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same |
| Max CPU Clock | 120 MHz | 120 MHz | 120 MHz | 100 MHz (-20%) | 120 MHz | 120 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB (-50%) |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) |
| USB 2.0 OTG | Yes (FS) | Yes | Yes | Yes | No | Yes |
| CTMU Touch Hardware | Yes | Yes | Yes | Yes | No | Yes |
| Shipping Form | Tape & Reel (-T) | Tray | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
| Approx. Unit Price (qty 1000) | $5.90 | $5.90 (tray) | $5.85 (-1%) | $5.70 (-3%) | $5.20 (-12%) | $4.95 (-16%) |
Bảo phân biệt quan trọng
- Integrated USB 2.0 OTG with internal PHY (vsPIC32MX370F512LT-120/PF)
- Higher 120 MHz CPU speed grade (vsPIC32MX470F512LT-I/PF)
- Full 512 KB Flash for richer firmware (vsPIC32MX450F256LT-120/PF)
Ghi chú thiết kế
Place one 100 nF ceramic decoupling capacitor on each VDD pin pair (pins 20, 27, 49, 65, 83) within 2 mm of the pin. Add a single 10 uF ceramic bulk capacitor on the VDD rail close to the device. The internal 1.8 V core LDO draws up to 80 mA at full load and requires VDD stable within 50 ms of start-up - sequence MCLR release after VDD > 2.3 V.
USB D+ and D- traces must be routed as a 90 ohm differential pair, length-matched to within 150 mil. The VUSB pin requires a 10 uF ceramic (not tantalum) capacitor per the datasheet; using tantalum will cause USB enumeration failures. The MCLR pin must be pulled up to VDD via 10 kohm and have a 100 nF decoupling cap close to the pin to filter ESD events.
Route the 12 MHz primary crystal traces between OSC1 and OSC2 within 5 mm of the package, length-matched, and surrounded by a grounded guard ring. Keep the crystal traces away from switching power nodes and the PMP data bus. If USB is used, keep the USB D+/D- pair at least 3 mm away from any switching converter edges and surround with a clean ground pour stitched with vias every 50 mm.
The 100-pin TQFP has a junction-to-ambient thermal resistance of approximately 50 C/W with a standard 4-layer JEDEC test board. At maximum 120 MHz CPU clock and 100% peripheral utilization, power dissipation is approximately 0.6 W resulting in a 30 C junction temperature rise above ambient. For closed-enclosure industrial designs, provide a minimum 100 mm^2 copper pad on VDD/VSS to assist heat spreading.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified (no automotive-grade variant exists for this part). Lead-free reflow profile per J-STD-020.
