PIC32MX470F512LT-I/TL - 32-bit MCU, 512KB Flash, USB | Microchip
料号： PIC32MX470F512LT-I/TL ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.01 | $9.01 |
| 10 | $8.11 | $81.10 |
| 100 | $7.21 | $721.00 |
| 500 | $6.41 | $3,205.00 |
| 1,000 | $5.68 | $5,680.00 |
PIC32MX470F512LT-I/TL 概述
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.
直接替换替代料： PIC32MX470F512LT-I/TL ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC32MX470F512LT-I/TL （相同外形与封装尺寸） ——差异在于 DMA Channels, Package, ADC, Core Architecture, USB.
快速对比工具——选择替代料号进行并排对比：
PIC32MX470F512LT-120I/TL
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX470F512LT-I/PT
✅ 直接替换✓ 有现货
$5.84 / 个
查看数据手册 →PIC32MX470F512L-I/PT
✅ 直接替换✓ 有现货
$6.32 / 个
查看数据手册 →PIC32MX450F256LT-I/TL
✅ 直接替换✓ 有现货
$5.78 / 个
查看数据手册 →PIC32MX370F512L-V/TL
✅ 直接替换✓ 有现货
$5.58 / 个
查看数据手册 →PIC32MX470F512LT-I/TL 最大额定值与电气特性
| Core Architecture | MIPS32 M4K |
| Core Count | 1 |
| 数据总线宽度 | 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 |
| 封装 | 124-pin VTLA (9x9 mm) |
| 工作温度 | -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 |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Touch Sensing (CTMU) | Yes |
| RTCC (Real-Time Clock) | Yes |
PIC32MX470F512LT-I/TL 引脚配置
| 引脚 1 | RA0 — General purpose I/O / AN0 / CVREF- |
| 引脚 2 | RA1 — General purpose I/O / AN1 / CVREF+ |
| 引脚 3 | RA2 — General purpose I/O / AN2 |
| 引脚 4 | RA3 — General purpose I/O / AN3 / VREF- |
| 引脚 5 | RA4 — General purpose I/O / AN4 / VREF+ |
| 引脚 6 | RA5 — General purpose I/O / AN5 |
| 引脚 7 | RA6 — General purpose I/O |
| 引脚 8 | RA7 — General purpose I/O |
| 引脚 9 | RA8 — General purpose I/O |
| 引脚 10 | RA9 — General purpose I/O |
| 引脚 11 | RA10 — General purpose I/O |
| 引脚 12 | RB0 — General purpose I/O / PGED1 |
| 引脚 13 | RB1 — General purpose I/O / PGEC1 |
| 引脚 14 | RB2 — General purpose I/O |
| 引脚 15 | RB3 — General purpose I/O |
| 引脚 16 | RB4 — General purpose I/O |
| 引脚 17 | RB5 — General purpose I/O / AN7 |
| 引脚 18 | RB6 — General purpose I/O / AN8 |
| 引脚 19 | RB7 — General purpose I/O / AN9 |
| 引脚 20 | RB8 — General purpose I/O / AN10 |
| 引脚 21 | RB9 — General purpose I/O / AN11 |
| 引脚 22 | RB10 — General purpose I/O |
| 引脚 23 | RB11 — General purpose I/O |
| 引脚 24 | RB12 — General purpose I/O |
| 引脚 25 | RB13 — General purpose I/O |
| 引脚 26 | RB14 — General purpose I/O / CVREF-/AN14 |
| 引脚 27 | RB15 — General purpose I/O / AN12 |
| 引脚 28 | VSS — Ground |
| 引脚 29 | VDD — I/O supply (2.3-3.6 V) |
| 引脚 30 | RC1 — General purpose I/O / AN15 |
| 引脚 31 | RC2 — General purpose I/O / AN16 |
| 引脚 32 | RC3 — General purpose I/O / AN17 |
| 引脚 33 | RC4 — General purpose I/O |
| 引脚 34 | VDD — I/O supply |
| 引脚 35 | VSS — Ground |
| 引脚 36 | RC5 — General purpose I/O |
| 引脚 37 | RC6 — General purpose I/O |
| 引脚 38 | RC7 — General purpose I/O |
| 引脚 39 | RC8 — General purpose I/O |
| 引脚 40 | RC9 — General purpose I/O |
| 引脚 41 | RC10 — General purpose I/O |
| 引脚 42 | RC11 — General purpose I/O |
| 引脚 43 | RC12 — General purpose I/O |
| 引脚 44 | RC13 — General purpose I/O |
| 引脚 45 | RC14 — General purpose I/O |
| 引脚 46 | RC15 — General purpose I/O |
| 引脚 47 | VSS — Ground |
| 引脚 48 | VDD — I/O supply |
| 引脚 49 | RD0 — General purpose I/O |
| 引脚 50 | RD1 — General purpose I/O |
| 引脚 51 | RD2 — General purpose I/O |
| 引脚 52 | RD3 — General purpose I/O |
| 引脚 53 | RD4 — General purpose I/O |
| 引脚 54 | RD5 — General purpose I/O |
| 引脚 55 | RD6 — General purpose I/O |
| 引脚 56 | RD7 — General purpose I/O |
| 引脚 57 | RD8 — General purpose I/O |
| 引脚 58 | RD9 — General purpose I/O |
| 引脚 59 | RD10 — General purpose I/O |
| 引脚 60 | RD11 — General purpose I/O |
| 引脚 61 | RD12 — General purpose I/O |
| 引脚 62 | RD13 — General purpose I/O |
| 引脚 63 | RD14 — General purpose I/O |
| 引脚 64 | RD15 — General purpose I/O |
| 引脚 65 | VSS — Ground |
| 引脚 66 | VDD — I/O supply |
| 引脚 67 | RE0 — General purpose I/O / PMRD |
| 引脚 68 | RE1 — General purpose I/O / PMWR |
| 引脚 69 | RE2 — General purpose I/O |
| 引脚 70 | RE3 — General purpose I/O |
| 引脚 71 | RE4 — General purpose I/O |
| 引脚 72 | RE5 — General purpose I/O |
| 引脚 73 | RE6 — General purpose I/O |
| 引脚 74 | RE7 — General purpose I/O |
| 引脚 75 | RF0 — General purpose I/O |
| 引脚 76 | RF1 — General purpose I/O |
| 引脚 77 | RF2 — General purpose I/O |
| 引脚 78 | RF3 — General purpose I/O |
| 引脚 79 | RF4 — General purpose I/O |
| 引脚 80 | RF5 — General purpose I/O |
| 引脚 81 | RF6 — General purpose I/O |
| 引脚 82 | RF7 — General purpose I/O |
| 引脚 83 | RF8 — General purpose I/O |
| 引脚 84 | VSS — Ground |
| 引脚 85 | VDD — I/O supply |
| 引脚 86 | RG0 — General purpose I/O |
| 引脚 87 | RG1 — General purpose I/O |
| 引脚 88 | RG2 — General purpose I/O |
| 引脚 89 | RG3 — General purpose I/O |
| 引脚 90 | RG6 — General purpose I/O |
| 引脚 91 | RG7 — General purpose I/O |
| 引脚 92 | RG8 — General purpose I/O |
| 引脚 93 | RG9 — General purpose I/O |
| 引脚 94 | VDD — I/O supply |
| 引脚 95 | VSS — Ground |
| 引脚 96 | RH0 — General purpose I/O / AN18 |
| 引脚 97 | RH1 — General purpose I/O / AN19 |
| 引脚 98 | RH2 — General purpose I/O / AN20 |
| 引脚 99 | RH3 — General purpose I/O / AN21 |
| 引脚 100 | RH4 — General purpose I/O / AN22 |
| 引脚 101 | RH5 — General purpose I/O / AN23 |
| 引脚 102 | RH6 — General purpose I/O / AN24 |
| 引脚 103 | RH7 — General purpose I/O / AN25 |
| 引脚 104 | RH8 — General purpose I/O / AN26 |
| 引脚 105 | RH9 — General purpose I/O / AN27 |
| 引脚 106 | RH10 — General purpose I/O |
| 引脚 107 | RH11 — General purpose I/O |
| 引脚 108 | VSS — Ground |
| 引脚 109 | VDD — I/O supply |
| 引脚 110 | RJ0 — General purpose I/O |
| 引脚 111 | RJ1 — General purpose I/O |
| 引脚 112 | RJ2 — General purpose I/O |
| 引脚 113 | RJ3 — General purpose I/O |
| 引脚 114 | RJ4 — General purpose I/O |
| 引脚 115 | RJ5 — General purpose I/O |
| 引脚 116 | RJ6 — General purpose I/O |
| 引脚 117 | RJ7 — General purpose I/O |
| 引脚 118 | RJ8 — General purpose I/O |
| 引脚 119 | RJ9 — General purpose I/O |
| 引脚 120 | RJ10 — General purpose I/O |
| 引脚 121 | RJ11 — General purpose I/O |
| 引脚 122 | VDD — I/O supply |
| 引脚 123 | VSS — Ground |
| 引脚 124 | EPAD — Exposed thermal pad - tie to VSS for thermal dissipation |
典型应用
PIC32MX470F512LT-I/TL 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： PIC32MX470F512LT-I/TL ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Largest Flash + RAM in the VTLA-124 footprint （对比 PIC32MX450F256LT-I/TL)
- Higher speed grade option with same footprint （对比 PIC32MX470F512LT-120I/TL)
- Dual-package family member (VTLA-124 and TQFP-100) （对比 PIC32MX470F512LT-I/PT)
设计说明
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.
合规信息
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.