PIC32MX470F512LT-I/TL - 32-bit MCU, 512KB Flash, USB | Microchip
MPN: PIC32MX470F512LT-I/TL ✓ Hoạt độngPIC32MX470F512LT-I/TL Tóm tắt
A 32-bit MCU (microcontroller unit) is an integrated circuit combining a 32-bit processor core with program memory (Flash), working memory (RAM), and a fixed set of peripherals such as timers, ADCs, and communication controllers on one die. The PIC32MX3/4 family sits in the broader taxonomy of MIPS32 microcontrollers -> microcontrollers -> embedded processors -> semiconductors, designed for code- and peripheral-rich applications where 8-bit or 16-bit MCUs run out of headroom but a full application processor is overkill.
Key features of this device include 512 KB single-cycle Flash with prefetch cache to mask Flash latency, 128 KB RAM suitable for USB frame buffers and audio sample buffers, a 10/100 Ethernet RMII interface on selected variants, an on-chip 28-channel 1 MSPS 10-bit ADC, and a Charge Time Measurement Unit (CTMU) for capacitive touch sensing. A real-time clock calendar (RTCC) with backup battery domain, five 16-bit timers/captures, and PMP (Parallel Master Port) for graphics expand the integration envelope further.
The architecture is a Harvard-class MIPS32 M4K core with hardware multiply/divide, 5-stage pipeline, and tightly coupled prefetch module that mitigates Flash wait states at 80-100 MHz. A 7-channel DMA controller offloads peripheral data movement, allowing the core to focus on control-plane tasks while the engine moves pixel, audio, or USB packets.
Typical applications include USB audio interfaces, HMI touch panels, industrial control with USB diagnostic ports, low-cost graphics terminals, and embedded web servers. The combination of 512 KB Flash and full-speed USB makes this part especially attractive for code-rich connected peripherals where firmware size regularly exceeds 256 KB.
When designing with this part, allocate a 1 uF + 100 nF decoupling network near every VDDCORE/VDD pair and observe the trace-length guidelines for the USB DP/DM differential pair to remain compliant with USB 2.0 full-speed signalling. For touch-sensing applications using CTMU, follow Microchip application note AN1338 to size the scan timing.
This page synthesizes distributor stock and pricing, same-family drop-in alternatives, and practical design notes for the VTLA-124 footprint not all of which appear on the manufacturer product page.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX470F512LT-I/TL — 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-I/TL (cùng hình factor và footprint) — khác nhau ở DMA Channels, Package, ADC, Core Architecture, USB.
PIC32MX470F512LT-120I/TL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX470F512LT-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512L-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX450F256LT-I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX370F512L-V/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512LT-I/TL Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K |
| Core Count | 1 |
| Bề rộng đường dữ liệu | 32-bit |
| Maximum Clock Speed | 100 MHz |
| Performance | 100 MIPS (150 DMIPS capable per family) |
| Flash Program Memory | 512 KB (512K x 8) |
| SRAM | 128 KB |
| Hộp | 124-pin VTLA (9x9 mm) |
| Nhiệt độ hoạt động | -40C to +85C (Industrial -I) |
| USB Interface | USB 2.0 Full-Speed OTG |
| ADC | 10-bit, 28-channel, 1 MSPS |
| Analog Comparators | 2 |
| I2C | 2 |
| SPI / I2S | 2 |
| UART | 5 |
| DMA Channels | 7 |
| Timers | 5 x 16-bit |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Touch Sensing (CTMU) | Yes |
| RTCC (Real-Time Clock) | Yes |
Cấu hình chân PIC32MX470F512LT-I/TL
| Chân 1 | RA0 — General purpose I/O / AN0 / CVREF- |
| Chân 2 | RA1 — General purpose I/O / AN1 / CVREF+ |
| Chân 3 | RA2 — General purpose I/O / AN2 |
| Chân 4 | RA3 — General purpose I/O / AN3 / VREF- |
| Chân 5 | RA4 — General purpose I/O / AN4 / VREF+ |
| Chân 6 | RA5 — General purpose I/O / AN5 |
| Chân 7 | RA6 — General purpose I/O |
| Chân 8 | RA7 — General purpose I/O |
| Chân 9 | RA8 — General purpose I/O |
| Chân 10 | RA9 — General purpose I/O |
| Chân 11 | RA10 — General purpose I/O |
| Chân 12 | RB0 — General purpose I/O / PGED1 |
| Chân 13 | RB1 — General purpose I/O / PGEC1 |
| Chân 14 | RB2 — General purpose I/O |
| Chân 15 | RB3 — General purpose I/O |
| Chân 16 | RB4 — General purpose I/O |
| Chân 17 | RB5 — General purpose I/O / AN7 |
| Chân 18 | RB6 — General purpose I/O / AN8 |
| Chân 19 | RB7 — General purpose I/O / AN9 |
| Chân 20 | RB8 — General purpose I/O / AN10 |
| Chân 21 | RB9 — General purpose I/O / AN11 |
| Chân 22 | RB10 — General purpose I/O |
| Chân 23 | RB11 — General purpose I/O |
| Chân 24 | RB12 — General purpose I/O |
| Chân 25 | RB13 — General purpose I/O |
| Chân 26 | RB14 — General purpose I/O / CVREF-/AN14 |
| Chân 27 | RB15 — General purpose I/O / AN12 |
| Chân 28 | VSS — Ground |
| Chân 29 | VDD — I/O supply (2.3-3.6 V) |
| Chân 30 | RC1 — General purpose I/O / AN15 |
| Chân 31 | RC2 — General purpose I/O / AN16 |
| Chân 32 | RC3 — General purpose I/O / AN17 |
| Chân 33 | RC4 — General purpose I/O |
| Chân 34 | VDD — I/O supply |
| Chân 35 | VSS — Ground |
| Chân 36 | RC5 — General purpose I/O |
| Chân 37 | RC6 — General purpose I/O |
| Chân 38 | RC7 — General purpose I/O |
| Chân 39 | RC8 — General purpose I/O |
| Chân 40 | RC9 — General purpose I/O |
| Chân 41 | RC10 — General purpose I/O |
| Chân 42 | RC11 — General purpose I/O |
| Chân 43 | RC12 — General purpose I/O |
| Chân 44 | RC13 — General purpose I/O |
| Chân 45 | RC14 — General purpose I/O |
| Chân 46 | RC15 — General purpose I/O |
| Chân 47 | VSS — Ground |
| Chân 48 | VDD — I/O supply |
| Chân 49 | RD0 — General purpose I/O |
| Chân 50 | RD1 — General purpose I/O |
| Chân 51 | RD2 — General purpose I/O |
| Chân 52 | RD3 — General purpose I/O |
| Chân 53 | RD4 — General purpose I/O |
| Chân 54 | RD5 — General purpose I/O |
| Chân 55 | RD6 — General purpose I/O |
| Chân 56 | RD7 — General purpose I/O |
| Chân 57 | RD8 — General purpose I/O |
| Chân 58 | RD9 — General purpose I/O |
| Chân 59 | RD10 — General purpose I/O |
| Chân 60 | RD11 — General purpose I/O |
| Chân 61 | RD12 — General purpose I/O |
| Chân 62 | RD13 — General purpose I/O |
| Chân 63 | RD14 — General purpose I/O |
| Chân 64 | RD15 — General purpose I/O |
| Chân 65 | VSS — Ground |
| Chân 66 | VDD — I/O supply |
| Chân 67 | RE0 — General purpose I/O / PMRD |
| Chân 68 | RE1 — General purpose I/O / PMWR |
| Chân 69 | RE2 — General purpose I/O |
| Chân 70 | RE3 — General purpose I/O |
| Chân 71 | RE4 — General purpose I/O |
| Chân 72 | RE5 — General purpose I/O |
| Chân 73 | RE6 — General purpose I/O |
| Chân 74 | RE7 — General purpose I/O |
| Chân 75 | RF0 — General purpose I/O |
| Chân 76 | RF1 — General purpose I/O |
| Chân 77 | RF2 — General purpose I/O |
| Chân 78 | RF3 — General purpose I/O |
| Chân 79 | RF4 — General purpose I/O |
| Chân 80 | RF5 — General purpose I/O |
| Chân 81 | RF6 — General purpose I/O |
| Chân 82 | RF7 — General purpose I/O |
| Chân 83 | RF8 — General purpose I/O |
| Chân 84 | VSS — Ground |
| Chân 85 | VDD — I/O supply |
| Chân 86 | RG0 — General purpose I/O |
| Chân 87 | RG1 — General purpose I/O |
| Chân 88 | RG2 — General purpose I/O |
| Chân 89 | RG3 — General purpose I/O |
| Chân 90 | RG6 — General purpose I/O |
| Chân 91 | RG7 — General purpose I/O |
| Chân 92 | RG8 — General purpose I/O |
| Chân 93 | RG9 — General purpose I/O |
| Chân 94 | VDD — I/O supply |
| Chân 95 | VSS — Ground |
| Chân 96 | RH0 — General purpose I/O / AN18 |
| Chân 97 | RH1 — General purpose I/O / AN19 |
| Chân 98 | RH2 — General purpose I/O / AN20 |
| Chân 99 | RH3 — General purpose I/O / AN21 |
| Chân 100 | RH4 — General purpose I/O / AN22 |
| Chân 101 | RH5 — General purpose I/O / AN23 |
| Chân 102 | RH6 — General purpose I/O / AN24 |
| Chân 103 | RH7 — General purpose I/O / AN25 |
| Chân 104 | RH8 — General purpose I/O / AN26 |
| Chân 105 | RH9 — General purpose I/O / AN27 |
| Chân 106 | RH10 — General purpose I/O |
| Chân 107 | RH11 — General purpose I/O |
| Chân 108 | VSS — Ground |
| Chân 109 | VDD — I/O supply |
| Chân 110 | RJ0 — General purpose I/O |
| Chân 111 | RJ1 — General purpose I/O |
| Chân 112 | RJ2 — General purpose I/O |
| Chân 113 | RJ3 — General purpose I/O |
| Chân 114 | RJ4 — General purpose I/O |
| Chân 115 | RJ5 — General purpose I/O |
| Chân 116 | RJ6 — General purpose I/O |
| Chân 117 | RJ7 — General purpose I/O |
| Chân 118 | RJ8 — General purpose I/O |
| Chân 119 | RJ9 — General purpose I/O |
| Chân 120 | RJ10 — General purpose I/O |
| Chân 121 | RJ11 — General purpose I/O |
| Chân 122 | VDD — I/O supply |
| Chân 123 | VSS — Ground |
| Chân 124 | EPAD — Exposed thermal pad - tie to VSS for thermal dissipation |
Ứng dụng tiêu biểu
PIC32MX470F512LT-I/TL phù hợp cho 6 Áp dụngs: USB Audio Interface, Human-Machine Interface (HMI) Touch Panel, Industrial Control with USB Diagnostic Port, Low-Cost Graphics Terminal, Embedded Web Server / IoT Gateway, Medical Data Acquisition Device.
USB Audio Interface
The PIC32MX470F512LT-I/TL's USB 2.0 Full-Speed OTG controller, 128 KB SRAM, and 512 KB Flash make it ideal for USB audio class 1.0/2.0 implementations. The 100 MIPS MIPS32 M4K core has sufficient headroom to run the USB stack plus ASIO/WAV processing while sustaining 48 kHz stereo isochronous streams. The 28-channel ADC doubles as an analog mixer input sampler. Place the device with the DP/DM pair routed as a 90-ohm differential and decouple VUSB with 1 uF + 100 nF; power dissipation typically stays below 300 mW at full USB throughput.
Được đề xuất
Human-Machine Interface (HMI) Touch Panel
The on-chip CTMU and 28-channel ADC make this MCU a strong fit for capacitive touch HMI panels without an external touch controller. The 100 MHz core and 512 KB Flash can run a graphics UI library plus the touch-scanning algorithm, while 128 KB RAM is sufficient for double-buffered framebuffers driving a 320x240 TFT via PMP. The Ethernet RMII enables remote monitoring of the panel. Combined power draw at 100 MHz with active ADC scanning is typically under 60 mA at 3.3 V.
Được đề xuất
Industrial Control with USB Diagnostic Port
The PIC32MX470F512LT-I/TL suits industrial controllers needing firmware-update and diagnostics over USB plus Ethernet connectivity to a SCADA network. Five UARTs allow simultaneous RS-232/RS-485 fieldbus links, while the 128 KB RAM buffers incoming Modbus TCP packets. Industrial -40C to +85C operation is supported by the -I suffix. Critical design note: provide a supervisor and watchdog (built-in) for brown-out recovery and use the 5 UARTs to bridge USB-CDC to legacy RS-485 peripherals.
Được đề xuất
Low-Cost Graphics Terminal
The PIC32MX470F512LT-I/TL's PMP peripheral and 512 KB Flash enable a low-cost monochrome or color graphics terminal at up to QVGA resolution. The 100 MHz MIPS32 M4K drives text rendering, menus, and BMP icons without external graphics hardware. The Ethernet RMII allows connection to host systems over TCP, and USB OTG supports keyboard / mouse input. RAM usage for a QVGA framebuffer (320x240x16bpp = 150 KB) fits within the 128 KB SRAM budget for partial-screen updates.
Được đề xuất
Embedded Web Server / IoT Gateway
This MCU fits IoT gateways that need Ethernet, USB device, and ample code space for an embedded TCP/IP stack (TCP, HTTP, MQTT, TLS). The 512 KB Flash holds a full NetBIOS/HTTP server with TLS handshake buffers, and the 7-channel DMA offloads Ethernet packet movement. The 100 MHz core maintains TLS handshake within acceptable latencies for sensor polling loops. Use the on-chip RTCC plus a 32.768 kHz crystal for time-stamping telemetry when the network drops.
Được đề xuất
Medical Data Acquisition Device
The 10-bit 1 MSPS ADC, dual analog comparators, and USB OTG make this part suitable for portable medical monitoring peripherals such as pulse oximeters, ECG acquisition modules, and body-temperature loggers. The 28 ADC channels accept multi-sensor inputs, and USB OTG provides tethered data transfer or battery charging. Industrial -40C to +85C temperature range supports field deployment. Note that medical safety certification (IEC 60601) is the responsibility of the system integrator, not the MCU.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX470F512LT-I/TL — 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 | PIC32MX470F512LT-120I/TL | PIC32MX470F512LT-I/PT | PIC32MX470F512L-I/PT | PIC32MX450F256LT-I/TL | PIC32MX370F512L-V/TL |
|---|---|---|---|---|---|---|
| Package | 124-pin VTLA (9x9 mm) | 124-pin VTLA (9x9 mm) - same | 100-pin TQFP - different | 100-pin TQFP - different | 124-pin VTLA (9x9 mm) - same | 124-pin VTLA (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Max Clock Speed | 100 MHz | 120 MHz | 100 MHz | 100 MHz | 100 MHz | 80 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 32 KB | 128 KB |
| USB Interface | 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 Device | USB 2.0 Full-Speed OTG |
| Ethernet | 10/100 RMII | 10/100 RMII | No (100-pin no Ethernet) | No (100-pin no Ethernet) | No | No |
| ADC Channels | 28 | 28 | 14 (100-pin limited) | 14 (100-pin limited) | 28 | 28 |
Bảo phân biệt quan trọng
- Largest Flash + RAM in the VTLA-124 footprint (vsPIC32MX450F256LT-I/TL)
- Higher speed grade option with same footprint (vsPIC32MX470F512LT-120I/TL)
- Dual-package family member (VTLA-124 and TQFP-100) (vsPIC32MX470F512LT-I/PT)
Ghi chú thiết kế
Place a 1 uF ceramic + 100 nF decoupling pair within 6 mm of every VDD/VSS pin pair on the PIC32MX470F512LT-I/TL, plus a 4.7 uF bulk capacitor near the IC. The VDDCORE pin (internal 1.8 V LDO output) requires its own 1 uF + 100 nF per the Microchip datasheet; failure to bypass the core rail causes Flash wait-state errors and brown-out resets at 100 MHz operation.
Route the USB DP/DM pair as a 90-ohm differential with no splits, keep the pair length under 50 mm, and place the VUSB decoupling cap within 2 mm of the VUSB pin. For Ethernet RMII, route the 50 MHz reference clock with 50-ohm controlled impedance and keep RMII traces under 50 mm - longer traces cause setup/hold violations on the Ethernet MAC.
Estimated: at 100 MHz, 3.3 V VDD, with all peripherals active, the PIC32MX470F512LT-I/TL draws approximately 65-75 mA (215-248 mW). The 124-pin VTLA 9x9 mm package has a thermal resistance of approximately 28 C/W to the exposed pad; tie the EPAD to a continuous VSS copper pour of at least 1 square inch to stay within the -40C to +85C industrial temperature range.
Do not skip the configuration of the configuration words - an unconfigured MCU will run but with brown-out and watchdog in undefined states. Always set the JTAG enable bit and the boot vector correctly per the family datasheet. For PMP graphics applications, the PMALL/PMAH/PMDIN/PMDOUT registers require precise timing; consult Microchip application note AN1365 for the chosen TFT controller.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Industrial -40C to +85C temperature grade per -I suffix. AEC-Q100 not applicable - this is a general-purpose MCU, not automotive-qualified.