PIC32MX470F512L-I/PF - 32-Bit 80MHz 512KB Flash MCU | Microchip
料号： PIC32MX470F512L-I/PF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.83 | $12.83 |
| 10 | $11.55 | $115.50 |
| 100 | $10.27 | $1,027.00 |
| 500 | $9.1 | $4,550.00 |
| 1,000 | $8.45 | $8,450.00 |
PIC32MX470F512L-I/PF 概述
A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory, data memory, and configurable peripherals. The PIC32MX3/4 family sits in the hierarchy: microcontroller -> 32-bit MCU -> MIPS M4K core -> PIC32MX family -> Microchip 32-bit portfolio. These devices target human-machine interface (HMI), audio, USB connectivity, and advanced analog applications, bridging the gap between 8/16-bit MCUs and higher-cost application processors.
Key features include five 16-bit timers/counters, five input capture and five output compare modules, a 16-bit Parallel Master Port, JTAG and 2-wire programming/debug, and an operating range of 2.3V to 3.6V. The industrial temperature grade (-I) supports -40C to +85C operation, suitable for commercial and industrial embedded designs. The peripheral set is engineered for low-power and connected applications where integration reduces BOM cost.
Architecturally, the PIC32MX470 uses a Harvard-style MIPS32 M4K core with separate 32-bit instruction and data paths, hardware multiply/divide, and tightly-coupled peripherals accessible via a high-bandwidth bus matrix. Code execution is held in 512 KB Flash, while 128 KB SRAM supports large data buffers required for USB, audio streaming, or graphical UI rendering.
Typical applications include USB audio devices (USB headphones, microphones, mixing consoles), HMI panels with touch and graphical LCDs, industrial control with USB logging, low-cost embedded instrumentation, and connected sensor hubs. The wide peripheral set allows a single chip to replace external logic, shrinking BOM and PCB area.
When designing with this MCU, mind the 3.3V supply rail requirement, route the USB DP/DM pair with 90 ohm differential impedance, and reserve the I2S pins if audio streaming is needed. Decouple VDD/VSS pairs with 100 nF plus bulk capacitors near the package, and consult Microchip's PIC32MX3/4/5/6/7 family reference manual for peripheral configuration details.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and design notes not collected on the manufacturer datasheet to accelerate your selection of the PIC32MX470F512L-I/PF.
直接替换替代料： PIC32MX470F512L-I/PF ——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： PIC32MX470F512L-I/PF （相同外形与封装尺寸） ——差异在于 Package, ADC, Core Architecture, Timers, Flash Program Memory.
快速对比工具——选择替代料号进行并排对比：
PIC32MX470F512LT-I/PF
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.2 / 个
查看数据手册 →PIC32MX470F512L-120I/PF
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX470F512L-120/PF
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX460F512L-80I/PT
✅ 直接替换✓ 有现货
$6.05 / 个
查看数据手册 →PIC32MX460F512L-80V/PT
✅ 直接替换✓ 有现货
$9.8 / 个
查看数据手册 →PIC32MX450F256L-V/PF
✅ 直接替换✓ 有现货
$4.85 / 个
查看数据手册 →PIC32MX450F256L-I/PF
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX470F512L-I/PF 最大额定值与电气特性
| Core | MIPS32 M4K 32-bit |
| Core Speed (I/PF grade) | 80 MHz |
| Core Speed (-120 grade) | 120 MHz |
| Performance | 150 DMIPS |
| Flash Program Memory | 512 KB (512K x 8) |
| SRAM | 128 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| 封装 | 100-pin TQFP (14x14 mm, PF) |
| Operating Temperature (I grade) | -40C to +85C |
| I/O Pins | 85 (maximum, package-dependent) |
| ADC | 10-bit, up to 1 Msps, up to 28 channels |
| Analog Comparators | 2 |
| USB | USB 2.0 Full-Speed OTG |
| UART | 6 |
| SPI / I2S | 2 (I2S-capable) |
| I2C | 2 |
| Timers | 5 x 16-bit |
| Input Capture / Output Compare | 5 / 5 |
| Parallel Master Port (PMP) | Yes (16-bit) |
| Programming/Debug | JTAG + 2-wire ICSP |
| RoHS 状态 | Compliant |
PIC32MX470F512L-I/PF 引脚配置
| 引脚 1 | RG15 — General purpose I/O |
| 引脚 2 | RG0 — General purpose I/O / PMP |
| 引脚 3 | VSS — Ground |
| 引脚 4 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 5 | RA0 — Analog input / GPIO |
| 引脚 6 | RA1 — Analog input / GPIO |
| 引脚 7 | RA2 — Analog input / GPIO |
| 引脚 8 | RA3 — Analog input / GPIO |
| 引脚 9 | RA4 — Analog input / GPIO |
| 引脚 10 | RA5 — Analog input / GPIO |
| 引脚 11 | VSS — Ground |
| 引脚 12 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 13 | RB0 — GPIO / Programming |
| 引脚 14 | RB1 — GPIO |
| 引脚 15 | RB2 — GPIO |
| 引脚 16 | RB3 — GPIO |
| 引脚 17 | RB4 — GPIO |
| 引脚 18 | RB5 — GPIO |
| 引脚 19 | RB6 — GPIO |
| 引脚 20 | RB7 — GPIO |
| 引脚 21 | RB8 — GPIO |
| 引脚 22 | RB9 — GPIO |
| 引脚 23 | VSS — Ground |
| 引脚 24 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 25 | RB10 — GPIO |
| 引脚 26 | RB11 — GPIO |
| 引脚 27 | RB12 — GPIO |
| 引脚 28 | RB13 — GPIO |
| 引脚 29 | RB14 — GPIO |
| 引脚 30 | RB15 — GPIO |
| 引脚 31 | VSS — Ground |
| 引脚 32 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 33 | RC0 — GPIO |
| 引脚 34 | RC1 — GPIO |
| 引脚 35 | RC2 — GPIO |
| 引脚 36 | RC3 — GPIO |
| 引脚 37 | RC4 — GPIO |
| 引脚 38 | RC5 — GPIO |
| 引脚 39 | RC6 — GPIO |
| 引脚 40 | RC7 — GPIO |
| 引脚 41 | RC8 — GPIO |
| 引脚 42 | RC9 — GPIO |
| 引脚 43 | VSS — Ground |
| 引脚 44 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 45 | RC10 — GPIO |
| 引脚 46 | RC11 — GPIO |
| 引脚 47 | RC12 — GPIO |
| 引脚 48 | RC13 — GPIO |
| 引脚 49 | RC14 — GPIO |
| 引脚 50 | RC15 — GPIO |
| 引脚 51 | VSS — Ground |
| 引脚 52 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 53 | RD0 — GPIO / PMP |
| 引脚 54 | RD1 — GPIO / PMP |
| 引脚 55 | RD2 — GPIO / PMP |
| 引脚 56 | RD3 — GPIO / PMP |
| 引脚 57 | RD4 — GPIO / PMP |
| 引脚 58 | RD5 — GPIO / PMP |
| 引脚 59 | RD6 — GPIO / PMP |
| 引脚 60 | RD7 — GPIO / PMP |
| 引脚 61 | RD8 — GPIO / PMP |
| 引脚 62 | RD9 — GPIO / PMP |
| 引脚 63 | RD10 — GPIO / PMP |
| 引脚 64 | RD11 — GPIO / PMP |
| 引脚 65 | VSS — Ground |
| 引脚 66 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 67 | RD12 — GPIO / PMP |
| 引脚 68 | RD13 — GPIO / PMP |
| 引脚 69 | RD14 — GPIO / PMP |
| 引脚 70 | RD15 — GPIO / PMP |
| 引脚 71 | VSS — Ground |
| 引脚 72 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 73 | RE0 — GPIO / PMP |
| 引脚 74 | RE1 — GPIO / PMP |
| 引脚 75 | RE2 — GPIO / PMP |
| 引脚 76 | RE3 — GPIO / PMP |
| 引脚 77 | RE4 — GPIO / PMP |
| 引脚 78 | RE5 — GPIO / PMP |
| 引脚 79 | RE6 — GPIO / PMP |
| 引脚 80 | RE7 — GPIO / PMP |
| 引脚 81 | VSS — Ground |
| 引脚 82 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 83 | RF0 — GPIO |
| 引脚 84 | RF1 — GPIO |
| 引脚 85 | RF2 — GPIO / USB VBUS detect |
| 引脚 86 | RF3 — GPIO / USB ID |
| 引脚 87 | RF4 — GPIO / USB D- |
| 引脚 88 | RF5 — GPIO / USB D+ |
| 引脚 89 | RF6 — GPIO |
| 引脚 90 | RF7 — GPIO |
| 引脚 91 | RF8 — GPIO |
| 引脚 92 | VSS — Ground |
| 引脚 93 | VDD — Core logic power supply (2.3-3.6V) |
| 引脚 94 | RG0 — GPIO |
| 引脚 95 | RG1 — GPIO |
| 引脚 96 | RG2 — GPIO / D+ |
| 引脚 97 | RG3 — GPIO / D- |
| 引脚 98 | RG6 — GPIO / SCLK |
| 引脚 99 | RG7 — GPIO / SDI |
| 引脚 100 | RG8 — GPIO / SDO |
典型应用
PIC32MX470F512L-I/PF 适用于 6 应用s: USB Audio Devices (Headphones, Headsets, Mixers), HMI Panels with Touch and Graphical LCD, Industrial Control with USB Data Logging, Low-Cost Embedded Instrumentation, Connected Sensor Hubs / IoT Gateways, Audio/Graphics Development Prototyping (USB PIM).
USB Audio Devices (Headphones, Headsets, Mixers)
The PIC32MX470F512L-I/PF is a strong fit for USB audio peripherals because it integrates USB 2.0 full-speed OTG with the 100-pin TQFP exposing DP/DM pins, alongside two I2S ports for digital audio paths at up to 48 kHz / 24-bit. Its 128 KB SRAM holds multiple audio streaming buffers without off-chip memory, while the MIPS32 M4K core at 80 MHz runs USB stack + I2S DMA + user DSP with margin. Placed as the central MCU with an external DAC such as the PCM5101A or codec like the SGTL5000, it removes the need for an external USB audio bridge. Designers should route the 90-ohm USB differential pair carefully and add ferrite beads on VBUS.
推荐
HMI Panels with Touch and Graphical LCD
The PIC32MX470F512L-I/PF drives graphical HMI panels via its 16-bit Parallel Master Port (PMP), which can directly interface TFT LCDs up to 480x272 without an external controller. With 512 KB Flash and 128 KB SRAM, frame buffers and UI assets fit on-chip; the 10-bit ADC with up to 28 channels supports resistive touch acquisition. The 100-pin TQFP exposes all PMP data and control lines. Compared to higher-cost MPU solutions, the PIC32MX470 reduces BOM by integrating USB for touch panel firmware updates and offering enough MIPS for smooth UI rendering.
推荐
Industrial Control with USB Data Logging
The PIC32MX470F512L-I/PF is well-suited to industrial control plus USB data logging because its industrial -40C to +85C operating range and 100-pin TQFP support up to 85 I/O and 28 ADC channels. It can scan sensors, run PID loops on the 32-bit MIPS core, and stream logs over USB OTG as a mass storage device. The 6 UART and 2 SPI/I2C connect to RS485 transceivers, sensors, and external peripherals; the 128 KB SRAM holds minutes of timestamped logs at typical sample rates. Pair it with an isolation IC such as ADM3251E for robust industrial field interfaces.
推荐
Low-Cost Embedded Instrumentation
For test and measurement instruments in the bench-top or field-portable class, the PIC32MX470F512L-I/PF integrates a 10-bit 1 Msps ADC, two analog comparators, PMP for external LCD, and USB for PC connectivity in one package. The MIPS32 M4K at 80 MHz performs FFTs, RMS calculations, and UI refresh at high refresh rates. The 512 KB Flash stores calibration tables and UI strings; 128 KB SRAM captures waveform snapshots. Choose PIC32MX470F512L-120/PF if your DSP needs demand 50% more compute.
推荐
Connected Sensor Hubs / IoT Gateways
The PIC32MX470F512L-I/PF acts as a local sensor hub aggregating I2C, SPI, and analog sensors then forwarding data over USB to a host PC or gateway. The 100-pin TQFP and 80 MHz MIPS core support dozens of sensors concurrently with 2.3-3.6V operation suitable for battery-friendly designs. USB OTG lets the device enumerate as a virtual COM port or HID, removing custom driver work. The 128 KB SRAM accommodates message queues for high-rate sampling without dropping frames.
推荐
Audio/Graphics Development Prototyping (USB PIM)
Microchip's PIC32MX470F512L 100-pin TQFP USB Plug-In Module (PIM) targets audio and graphics prototyping on the Explorer 16/32 board. The PIC32MX470F512L-I/PF directly mates with this PIM, exposing USB, PMP, and all peripherals to the developer out-of-box. 512 KB Flash and 128 KB SRAM support the entire USB stack plus audio/graphics demo firmware without external memory. Developers benefit from the same firmware portable to volume 100-pin TQFP designs.
推荐
推荐产品汇总
工程参考数据： PIC32MX470F512L-I/PF ——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-I/PF | PIC32MX470F512L-120I/PF | PIC32MX460F512L-80I/PT | PIC32MX450F256L-I/PF |
|---|---|---|---|---|---|
| Package | TQFP-100 (PF, 14x14 mm) | TQFP-100 (PF) - same | TQFP-100 (PF) - same | TQFP-100 (PT) - same footprint | TQFP-100 (PF) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 80 MHz | 80 MHz | 120 MHz | 80 MHz | 80 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB (verify) |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG (peripheral-variant) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Highest pin count in the PIC32MX470 family （对比 PIC32MX470F512H-I/MR (64-pin QFN))
- Lower power / cooler operation than -120 grade （对比 PIC32MX470F512L-120I/PF)
- 512 KB Flash with full peripheral set （对比 PIC32MX450F256L-I/PF)
设计说明
Power the PIC32MX470F512L-I/PF from a clean 3.3V rail. Decouple each VDD/VSS pair with 100 nF ceramic plus a 4.7 uF bulk near the package. For USB designs, derive 3.3V from VBUS via a low-dropout regulator (e.g. MCP1700-3302E) and add a ferrite bead to isolate digital noise. Estimated: at 80 MHz with USB active, peak IDD is around 60-70 mA - confirm via Microchip family datasheet power tables before finalizing the LDO current rating.
Route the USB differential pair (D+ / D-) with 90 ohm differential impedance, matched lengths, and a continuous ground reference plane beneath. Place the 27 ohm series termination resistors near the MCU pins. Keep high-speed traces (I2S, SPI) short and avoid crossing power planes. The 100-pin TQFP (14x14 mm) has generous clearance for hand-routable escape on a 4-layer board.
Do not assume USB VBUS is 5V tolerant at MCU pins - the PIC32MX470F512L operates at 2.3-3.6V; connect VBUS only through proper USB transceiver input pins. The 10-bit ADC accuracy degrades above 1 Msps and on channels shared with digital functions - sample with 0.1 uF hold capacitors externally for high precision. Always enable the JTAG/ICSP pull-ups correctly to avoid accidental reset.
Place a ground guard ring around the analog ADC pins and route them away from switching signals. Use a separate analog ground island tied to digital ground at a single point near the MCU's VSS pins. The PMP bus for graphical LCDs is best routed as parallel-matched traces, with control signals (RD, WR, CS) using series resistors for impedance control.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive, evaluate PIC32MK or SAM E70 family. Halogen-free status not explicitly stated in retrieved data.
