PIC32MX470F512LT-120/PT - 120MHz 32-bit MCU 512KB Flash | Microchip
MPN： PIC32MX470F512LT-120/PT ✓ 啟用中PIC32MX470F512LT-120/PT 概覽
A 32-bit microcontroller (MCU) is an integrated circuit containing a 32-bit CPU core, program memory (Flash), data memory (SRAM), and a rich set of on-chip peripherals such as timers, communication controllers, and analog blocks. Within the broader hierarchy, MCUs sit under microcontrollers -> embedded processors -> semiconductors. The PIC32MX3/4 family sits at the upper end of the PIC32MX series and offers on-chip USB 2.0 Full-Speed, a 10-bit 1 Msps ADC, two I2S/SPIs, CTMU touch hardware, and RTCC - features aimed at human-machine-interface (HMI) and audio applications.
Key features of this part include 120 MHz core clock with 150 DMIPS performance, 512 KB Flash program memory, 128 KB SRAM, 10/100 Ethernet MAC, two USB 2.0 Full-Speed controllers (one Host/Device/OTG and one Full-Speed Device), a Charge Time Measurement Unit (CTMU) for capacitive touch, an Real-Time Clock Calendar (RTCC), a Parallel Master Port (PMP), and up to five UART/I2C/SPI peripherals. The 100-TQFP package exposes 78 I/O pins and is pin-compatible with most PIC24/dsPIC devices at the same pitch.
The M4K pipeline executes most instructions in a single cycle, delivering 1.25 DMIPS/MHz and supporting MIPS32 Release 2 ISA with DSP ASE for SIMD-style math. Hardware Multiply/Divide accelerates 32x32-bit operations in one cycle, and the dual-bank Flash allows live updates without downtime, useful for bootloader designs.
Typical applications include USB peripherals, capacitive touch HMI panels, audio playback devices with USB or SD-card sources, industrial control front panels with Ethernet connectivity, and low-cost graphics terminals. The combination of USB, Ethernet, and 512 KB Flash is uncommon in this price tier, making the part a frequent choice for connected-embedded products.
When designing with this part, plan pin assignments early because the USB and Ethernet PHYs each require several dedicated pins. Decouple VDD/VUSB with 100 nF ceramic capacitors close to the package, and follow Microchip's recommended 8 MHz crystal layout for the PLL to meet USB jitter specifications.
This page synthesizes distributor pricing, drop-in alternatives from the PIC32MX3/4 family, and practical design notes that complement the manufacturer datasheet.
直接替換替代品，適用於 PIC32MX470F512LT-120/PT — 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/PT （相同外形與佔位） — 差異在於 Package, ADC, I/O Pins, Operating Temperature Range, DMA Channels.
PIC32MX470F512L-120/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX470F512LT-120/PF
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX470F512L-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX460F512LT-80I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC32MX450F256LT-120/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC32MX370F512LT-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC32MX470F512LT-120/PT 最大額定值與電氣特性
| Core Architecture | MIPS32 M4K |
| Core Width | 32-bit |
| Maximum CPU Speed | 120 MHz (150 DMIPS) |
| Program Flash Memory | 512 KB (512K x 8) |
| SRAM | 128 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 78 |
| 封裝 | 100-pin TQFP (PT) 12x12 mm |
| 工作溫度 | 0 C to +70 C (commercial) |
| 安裝類型 | Surface Mount |
| USB Controllers | 2 (USB 2.0 Full-Speed) |
| Ethernet MAC | 10/100 Mbps |
| ADC | 10-bit, up to 1 Msps |
| CTMU (Touch Hardware) | Yes |
| RTCC | Yes |
| RoHS 狀態 | Compliant |
PIC32MX470F512LT-120/PT 100-pin tqfp (pt) 12x12 mm 腳位配置指南
PIC32MX470F512LT-120/PT（100-pin tqfp (pt) 12x12 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC32MX470F512LT-120/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC32MX470F512LT-120/PT 適用於 6 應用s: USB HID Peripheral Devices, Capacitive Touch HMI Panels, Audio Playback Devices with USB Source, Industrial Ethernet Sensor Nodes, Low-Cost Graphics Terminals, IoT Edge Devices with Cloud Connectivity.
USB HID Peripheral Devices
The PIC32MX470F512LT-120/PT is well matched to USB HID peripherals such as custom keyboards, industrial control panels, and human-interface devices. The two integrated USB 2.0 Full-Speed controllers with on-chip transceivers and dedicated DMA offload the CPU, while 512 KB Flash accommodates HID class drivers plus application firmware. The 120 MHz M4K core sustains the 1 ms USB polling interval with margin for descriptor parsing, report generation, and any concurrent user-interface logic, while 128 KB SRAM holds multiple HID report buffers and stack scratch space.
推薦
Capacitive Touch HMI Panels
The PIC32MX470F512LT-120/PT's on-chip CTMU (Charge Time Measurement Unit) enables robust capacitive touch sensing without external touch-controller ICs, reducing BOM cost for HMI panels. Combined with the segment-LCD or PMP-driven TFT interface, the same MCU can scan touch sensors, drive the display, and run the application stack. The 128 KB SRAM supports intermediate touch-scan buffers, while 512 KB Flash stores graphics tables and firmware. Commercial 0 C to +70 C operation covers indoor HMI use cases including appliances, access-control keypads, and small industrial control panels.
推薦
Audio Playback Devices with USB Source
The PIC32MX470F512LT-120/PT drives USB-audio or SD-card audio playback devices by combining two I2S/SSP peripherals, a USB 2.0 Full-Speed host or device controller, and the PMP for external memory. The 120 MHz M4K core handles MP3/AAC decoding alongside USB stack housekeeping, while 128 KB SRAM buffers decoded audio frames. The I2S ports connect directly to external DACs such as the Microchip LAN8740A-class companion, and the on-chip 10-bit ADC supports auxiliary analog inputs.
推薦
Industrial Ethernet Sensor Nodes
The PIC32MX470F512LT-120/PT integrates a 10/100 Ethernet MAC with RMII/MII interface, enabling compact industrial sensor nodes that stream data over Ethernet/IP, Modbus TCP, or MQTT without an external PHY MCU. The 512 KB Flash supports TLS stacks such as wolfSSL, and 128 KB SRAM holds TCP/IP socket buffers plus application data. Operating from 2.3 V to 3.6 V aligns with industrial 24 V->3.3 V rails, and the 100-pin TQFP provides 78 I/O pins for sensor multiplexing and digital I/O expansion.
推薦
Low-Cost Graphics Terminals
The PIC32MX470F512LT-120/PT's Parallel Master Port (PMP) and EPMP can drive small TFT displays up to 480x272 resolution, enabling low-cost graphics terminals without an external graphics controller. The 120 MHz core and 128 KB SRAM sustain double-buffered frame updates at 30 fps for modest UIs. The integrated USB and Ethernet give the terminal native connectivity to host PCs or industrial controllers, while 512 KB Flash stores fonts, icons, and screen templates without an external SPI flash.
推薦
IoT Edge Devices with Cloud Connectivity
The PIC32MX470F512LT-120/PT supports IoT edge devices combining Ethernet or USB connectivity with on-chip A/D and PWM for sensor and actuator interfaces. The 120 MHz M4K core with hardware multiply and DSP ASE handles local signal conditioning (FFT, filtering, threshold detection) before cloud upload via MQTT over Ethernet or Wi-Fi through a companion module. The 128 KB SRAM accommodates TCP/IP stacks plus edge analytics buffers, and 512 KB Flash stores OTA-updatable firmware with dual-bank support for fail-safe upgrades. The commercial 0 C to +70 C range covers most indoor IoT installations.
推薦
推薦產品摘要
工程參考資料，適用於 PIC32MX470F512LT-120/PT — 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/PT | PIC32MX470F512LT-120/PF | PIC32MX470F512L-I/PT | PIC32MX450F256LT-120/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PT) 12x12 mm | TQFP-100 (PT) - same | TQFP-100 (PT) - same | TQFP-100 (PT) - same | TQFP-100 (PT) - same |
| Max CPU Speed | 120 MHz | 120 MHz | 120 MHz | 80 MHz | 120 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB |
| Operating Temperature | 0 C to +70 C (commercial) | 0 C to +70 C | 0 C to +70 C | -40 C to +85 C (industrial) | 0 C to +70 C |
| Ethernet MAC | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps |
| USB Controllers | 2 (USB 2.0 FS) | 2 | 2 | 2 | 2 |
主要差異化特點
- Higher 120 MHz speed grade vs industrial 80 MHz variants (對比PIC32MX470F512L-I/PT)
- Larger 512 KB Flash vs 256 KB cost-down sibling (對比PIC32MX450F256LT-120/PT)
- Same-day prototype compatibility via tray-packaged sibling (對比PIC32MX470F512L-120/PT)
設計說明
Estimated: at 120 MHz with all peripherals active and 3.3 V supply, the PIC32MX470F512LT-120/PT draws approximately 70-85 mA from VDD core, plus 10-15 mA for I/O ring and analog blocks. Place a 10 uF bulk + 100 nF ceramic decoupling pair within 5 mm of each VDD/AVDD/VUSB pin pair, plus a 4.7 uF bulk on VBUS when using USB host mode. Enable Deep Sleep mode (single-digit microamps) for battery-powered applications; use RTCC alarm or external interrupts as wake-up sources to preserve battery life.
The 100-pin TQFP at 12x12 mm has a 0.5 mm lead pitch, requiring PCB land patterns per IPC-7351 with 0.30 mm pads and 0.20 mm solder mask slivers. For USB applications, maintain 90-ohm differential impedance on the D+/D- traces with maximum length of 50 mm and a common-mode choke near the connector. For Ethernet RMII, route RMII clock and data lines as a length-matched group (within 2 mm) and keep them away from switching power and PWM signals to minimize crosstalk.
Do not exceed 3.6 V on any VDD pin; the PIC32MX470F512LT-120/PT is not 5 V tolerant. Configure unused I/O pins as outputs (not inputs) to avoid floating-input current draw of up to 1 mA per pin. When migrating firmware between PIC32MX variants, verify the I/O map because the Ethernet and USB pin assignments differ between PT (100-pin TQFP) and PF (100-pin TQFP) packages. Always lock the PLL to the external 8 MHz crystal before enabling USB, or the USB jitter specification will not be met.
合規資訊
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - automotive designs should use the V-suffix variants with explicit automotive qualification. Halogen-free status not explicitly stated in the verified web data.