PIC32MX470F512LT-120/PF - 120MHz 32-bit MCU 512KB Flash | Microchip
MPN： PIC32MX470F512LT-120/PF ✓ 啟用中PIC32MX470F512LT-120/PF 概覽
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.
直接替換替代品，適用於 PIC32MX470F512LT-120/PF — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC32MX470F512LT-120/PF （相同外形與佔位） — 差異在於 Package, ADC, Operating Temperature Range, USB, I/O Pins.
PIC32MX470F512L-120/PF
✅ 直接替換📋 參考替代品（不在目錄中）
PIC32MX470F512L-120/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX470F512LT-120/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX470F512LT-I/PF
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX370F512LT-120/PF
✅ 直接替換📋 參考替代品（不在目錄中）
PIC32MX450F256LT-120/PF
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX470F512LT-120/PF 最大額定值與電氣特性
| 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 |
| 工作溫度範圍 | -40 C to +105 C |
| 封裝 | 100-pin TQFP (14x14 mm, 0.4 mm pitch) |
| 安裝類型 | 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) |
| RoHS 狀態 | Compliant |
PIC32MX470F512LT-120/PF 腳位配置
| 腳位 1 | RP15/RD15 — Remappable I/O / PMP data bit |
| 腳位 2 | RP14/RD14 — Remappable I/O / PMP data bit |
| 腳位 3 | SDA2/RA2 — I2C2 data or GPIO |
| 腳位 4 | SCL2/RA3 — I2C2 clock or GPIO |
| 腳位 5 | RA4 — GPIO / OC5 |
| 腳位 6 | RA5 — GPIO / Timer |
| 腳位 7 | RA6 — GPIO |
| 腳位 8 | RA7 — GPIO |
| 腳位 9 | RB0 — GPIO / OC1 / CTED1 |
| 腳位 10 | RB1 — GPIO / OC2 |
| 腳位 11 | RB2 — GPIO / OC3 |
| 腳位 12 | TMS/RA0 — JTAG TMS / GPIO |
| 腳位 13 | TCK/RA1 — JTAG TCK / GPIO |
| 腳位 14 | TDI/RB13 — JTAG TDI / GPIO |
| 腳位 15 | TDO/RB12 — JTAG TDO / GPIO |
| 腳位 16 | VBUS — USB VBUS detect |
| 腳位 17 | VUSB — USB 3.3V LDO output (10 uF bypass required) |
| 腳位 18 | D- — USB D- |
| 腳位 19 | D+ — USB D+ |
| 腳位 20 | VDD — Core supply (decouple 100 nF + bulk) |
| 腳位 21 | VSS — Ground |
| 腳位 22 | RC1 — GPIO / OC4 |
| 腳位 23 | RC2 — GPIO / OC5 |
| 腳位 24 | RC3 — GPIO |
| 腳位 25 | RC4 — GPIO |
| 腳位 26 | VSS — Ground |
| 腳位 27 | VDD — I/O supply (2.3-3.6 V) |
| 腳位 28 | OSC1/RC12 — Crystal input / external clock |
| 腳位 29 | OSC2/RC13 — Crystal output |
| 腳位 30 | RC14 — GPIO |
| 腳位 31 | RC15 — GPIO |
| 腳位 32 | RD0 — Remappable I/O |
| 腳位 33 | RD1 — Remappable I/O |
| 腳位 34 | RD2 — Remappable I/O |
| 腳位 35 | RD3 — Remappable I/O |
| 腳位 36 | RD4 — Remappable I/O |
| 腳位 37 | RD5 — Remappable I/O |
| 腳位 38 | RD6 — Remappable I/O |
| 腳位 39 | RD7 — Remappable I/O |
| 腳位 40 | RE0 — GPIO / PWM |
| 腳位 41 | RE1 — GPIO / PWM |
| 腳位 42 | RE2 — GPIO / PWM |
| 腳位 43 | RE3 — GPIO |
| 腳位 44 | RE4 — GPIO |
| 腳位 45 | RE5 — GPIO |
| 腳位 46 | RE6 — GPIO |
| 腳位 47 | RE7 — GPIO |
| 腳位 48 | VSS — Ground |
| 腳位 49 | VDD — I/O supply |
| 腳位 50 | RF0 — Remappable I/O |
| 腳位 51 | RF1 — Remappable I/O |
| 腳位 52 | RF2 — Remappable I/O / DAC1 |
| 腳位 53 | RF3 — Remappable I/O / DAC2 |
| 腳位 54 | RF4 — Remappable I/O |
| 腳位 55 | RF5 — Remappable I/O |
| 腳位 56 | RG0 — GPIO |
| 腳位 57 | RG1 — GPIO |
| 腳位 58 | RG2 — GPIO / D+ for USB Host |
| 腳位 59 | RG3 — GPIO / D- for USB Host |
| 腳位 60 | RG6 — GPIO |
| 腳位 61 | RG7 — GPIO |
| 腳位 62 | RG8 — GPIO |
| 腳位 63 | RG9 — GPIO |
| 腳位 64 | VSS — Ground |
| 腳位 65 | VDD — I/O supply |
| 腳位 66 | RH0 — Remappable I/O |
| 腳位 67 | RH1 — Remappable I/O |
| 腳位 68 | RH2 — Remappable I/O |
| 腳位 69 | RH3 — Remappable I/O |
| 腳位 70 | RH4 — Remappable I/O |
| 腳位 71 | RH5 — Remappable I/O |
| 腳位 72 | RH6 — Remappable I/O |
| 腳位 73 | RH7 — Remappable I/O |
| 腳位 74 | RH8 — Remappable I/O |
| 腳位 75 | RH9 — Remappable I/O |
| 腳位 76 | RH10 — Remappable I/O |
| 腳位 77 | RH11 — Remappable I/O |
| 腳位 78 | RJ0 — GPIO |
| 腳位 79 | RJ1 — GPIO |
| 腳位 80 | RJ2 — GPIO |
| 腳位 81 | RJ3 — GPIO |
| 腳位 82 | VSS — Ground |
| 腳位 83 | VDD — I/O supply |
| 腳位 84 | RK0 — GPIO / PMP data |
| 腳位 85 | RK1 — GPIO / PMP data |
| 腳位 86 | RK2 — GPIO / PMP data |
| 腳位 87 | RK3 — GPIO / PMP data |
| 腳位 88 | RK4 — GPIO / PMP data |
| 腳位 89 | RK5 — GPIO / PMP data |
| 腳位 90 | RK6 — GPIO / PMP data |
| 腳位 91 | RK7 — GPIO / PMP data |
| 腳位 92 | RL0 — GPIO |
| 腳位 93 | RL1 — GPIO |
| 腳位 94 | RL2 — GPIO |
| 腳位 95 | RL3 — GPIO |
| 腳位 96 | SDA1/RA15 — I2C1 data or GPIO |
| 腳位 97 | SCL1/RA14 — I2C1 clock or GPIO |
| 腳位 98 | MCLR — Master clear reset (pull-up 10 kohm required) |
| 腳位 99 | ENVREG — Voltage regulator enable (tie to VDD) |
| 腳位 100 | VSS — Ground |
典型應用
PIC32MX470F512LT-120/PF 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 PIC32MX470F512LT-120/PF — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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%) |
主要差異化特點
- Integrated USB 2.0 OTG with internal PHY (對比PIC32MX370F512LT-120/PF)
- Higher 120 MHz CPU speed grade (對比PIC32MX470F512LT-I/PF)
- Full 512 KB Flash for richer firmware (對比PIC32MX450F256LT-120/PF)
設計說明
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.
合規資訊
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.
