PIC32MX460F256L-80I/BG - 80MHz 32-bit MCU 256KB Flash USB | Microchip
MPN： PIC32MX460F256L-80I/BG ✓ 啟用中PIC32MX460F256L-80I/BG 概覽
What is a PIC32 microcontroller? A PIC32MX device is a 32-bit flash microcontroller built on the MIPS M4K core, combining the deterministic peripheral set of Microchip's classic PIC architecture with the throughput of a 32-bit RISC pipeline. PIC32MX MCUs sit within Microchip's broader MCU hierarchy: 32-bit MCU -> MIPS-based MCU -> PIC32 family -> PIC32MX general-purpose series -> USB-capable sub-series. Compared to 8-bit PIC16/PIC18 devices, the PIC32MX adds native 32-bit registers, hardware multiply/divide, and significantly higher code density for C-based firmware.
The 256 KB Flash supports in-application programming through the ICSP interface, while 32 KB of SRAM enables substantial buffering for USB, communication stacks, and signal-processing tasks. The 80 MHz core delivers 1.56 DMIPS/MHz (approximately 125 DMIPS), supporting real-time USB, graphic, and control-loop workloads. Integrated peripherals include a 16-channel 10-bit ADC, five 16-bit timers, an RTCC, and a parallel master port for external bus expansion.
USB 2.0 full-speed OTG with on-chip transceiver eliminates external PHY cost and board area. The 121-pin TFBGA package maximizes I/O availability with 85+ general-purpose I/O pins, supporting both 2.5 V and 3.3 V operation across industrial temperature ranges (-40°C to +85°C).
Typical applications include USB peripherals, industrial control HMI panels, medical point-of-care instruments, embedded web servers, and motor-control front-ends. The 80 MHz MIPS performance combined with deterministic interrupt latency makes the PIC32MX460 suitable for hard real-time control alongside USB communication.
When designing with this part, ensure the 121-ball TFBGA land pattern is correctly routed with proper thermal vias under the package. Use MPLAB XC32 compiler with appropriate optimization levels for size and speed trade-offs in USB stack builds.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet alone, providing a single engineering reference for sourcing and validation.
直接替換替代品，適用於 PIC32MX460F256L-80I/BG — 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： PIC32MX460F256L-80I/BG （相同外形與佔位） — 差異在於 ADC, Package, DMA Channels, Operating Temperature, Core Architecture.
PIC32MX460F256LT-80I/BG
✅ 直接替換📋 參考替代品（不在目錄中）
PIC32MX460F256L-80V/BG
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC32MX360F256L-80I/BG
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX360F512L-80V/BG
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX440F128L-80I/BG
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX460F256L-80I/BG 最大額定值與電氣特性
| Core Architecture | MIPS32 M4K |
| Core Size | 32-bit |
| Maximum CPU Frequency | 80 MHz |
| Program Memory (Flash) | 256 KB |
| Data RAM | 32 KB |
| 封裝 | 121-TFBGA (10x10 mm) |
| Operating Voltage | 2.5 V / 3.3 V |
| 工作溫度 | -40°C to +85°C (Industrial) |
| USB Interface | USB 2.0 Full-Speed OTG with on-chip transceiver |
| ADC | 10-bit, multi-channel |
| Timers | 16-bit (5x) |
| Communication Interfaces | 2x EUSART, 2x I2C, 2x SPI |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC32MX460F256L-80I/BG 腳位配置
| 腳位 1 | OSC1/CLKI/RA1 — External clock input or crystal oscillator connection |
| 腳位 2 | OSC2/CLKO/RA2 — External clock output or crystal oscillator connection |
| 腳位 3 | MCLR — Master clear reset input (active low) |
| 腳位 4 | VSS — Ground reference |
| 腳位 5 | VDD — Positive supply voltage (2.5V or 3.3V) |
| 腳位 6 | AVDD — Analog positive supply voltage |
| 腳位 7 | AVSS — Analog ground reference |
| 腳位 8 | RB0 — Port B GPIO bit 0 (PGED1) |
| 腳位 9 | RB1 — Port B GPIO bit 1 (PGEC1) |
| 腳位 10 | RB2 — Port B GPIO bit 2 |
| 腳位 11 | RB3 — Port B GPIO bit 3 |
| 腳位 12 | RB4 — Port B GPIO bit 4 |
| 腳位 13 | RB5 — Port B GPIO bit 5 |
| 腳位 14 | RB6 — Port B GPIO bit 6 |
| 腳位 15 | RB7 — Port B GPIO bit 7 |
| 腳位 16 | RB8 — Port B GPIO bit 8 |
| 腳位 17 | RB9 — Port B GPIO bit 9 |
| 腳位 18 | RB10 — Port B GPIO bit 10 |
| 腳位 19 | RB11 — Port B GPIO bit 11 |
| 腳位 20 | RB12 — Port B GPIO bit 12 |
| 腳位 21 | RB13 — Port B GPIO bit 13 |
| 腳位 22 | RB14 — Port B GPIO bit 14 |
| 腳位 23 | RB15 — Port B GPIO bit 15 |
| 腳位 24 | VSS — Ground reference |
| 腳位 25 | VDD — Positive supply voltage |
| 腳位 26 | RC1 — Port C GPIO bit 1 |
| 腳位 27 | RC2 — Port C GPIO bit 2 |
| 腳位 28 | RC3 — Port C GPIO bit 3 |
| 腳位 29 | RC4 — Port C GPIO bit 4 |
| 腳位 30 | VUSB — USB internal transceiver supply |
| 腳位 31 | VDD — Positive supply voltage |
| 腳位 32 | VSS — Ground reference |
| 腳位 33 | D- — USB D- data line |
| 腳位 34 | D+ — USB D+ data line |
| 腳位 35 | RC12 — Port C GPIO bit 12 |
| 腳位 36 | RC13 — Port C GPIO bit 13 |
| 腳位 37 | RC14 — Port C GPIO bit 14 |
| 腳位 38 | RC15 — Port C GPIO bit 15 |
| 腳位 39 | VSS — Ground reference |
| 腳位 40 | VDD — Positive supply voltage |
| 腳位 41 | RD0 — Port D GPIO bit 0 |
| 腳位 42 | RD1 — Port D GPIO bit 1 |
| 腳位 43 | RD2 — Port D GPIO bit 2 |
| 腳位 44 | RD3 — Port D GPIO bit 3 |
| 腳位 45 | RD4 — Port D GPIO bit 4 |
| 腳位 46 | RD5 — Port D GPIO bit 5 |
| 腳位 47 | RD6 — Port D GPIO bit 6 |
| 腳位 48 | RD7 — Port D GPIO bit 7 |
| 腳位 49 | RD8 — Port D GPIO bit 8 |
| 腳位 50 | RD9 — Port D GPIO bit 9 |
| 腳位 51 | RD10 — Port D GPIO bit 10 |
| 腳位 52 | RD11 — Port D GPIO bit 11 |
| 腳位 53 | VSS — Ground reference |
| 腳位 54 | VDD — Positive supply voltage |
| 腳位 55 | RE0 — Port E GPIO bit 0 |
| 腳位 56 | RE1 — Port E GPIO bit 1 |
| 腳位 57 | RE2 — Port E GPIO bit 2 |
| 腳位 58 | RE3 — Port E GPIO bit 3 |
| 腳位 59 | RE4 — Port E GPIO bit 4 |
| 腳位 60 | RE5 — Port E GPIO bit 5 |
| 腳位 61 | RE6 — Port E GPIO bit 6 |
| 腳位 62 | RE7 — Port E GPIO bit 7 |
| 腳位 63 | VSS — Ground reference |
| 腳位 64 | VDD — Positive supply voltage |
| 腳位 65 | RF0 — Port F GPIO bit 0 |
| 腳位 66 | RF1 — Port F GPIO bit 1 |
| 腳位 67 | RF2 — Port F GPIO bit 2 |
| 腳位 68 | RF3 — Port F GPIO bit 3 |
| 腳位 69 | RF4 — Port F GPIO bit 4 |
| 腳位 70 | RF5 — Port F GPIO bit 5 |
| 腳位 71 | RF6 — Port F GPIO bit 6 |
| 腳位 72 | RF7 — Port F GPIO bit 7 |
| 腳位 73 | RF8 — Port F GPIO bit 8 |
| 腳位 74 | VSS — Ground reference |
| 腳位 75 | VDD — Positive supply voltage |
| 腳位 76 | RG0 — Port G GPIO bit 0 |
| 腳位 77 | RG1 — Port G GPIO bit 1 |
| 腳位 78 | RG2 — Port G GPIO bit 2 |
| 腳位 79 | RG3 — Port G GPIO bit 3 |
| 腳位 80 | RG6 — Port G GPIO bit 6 |
| 腳位 81 | RG7 — Port G GPIO bit 7 |
| 腳位 82 | RG8 — Port G GPIO bit 8 |
| 腳位 83 | RG9 — Port G GPIO bit 9 |
| 腳位 84 | VSS — Ground reference |
| 腳位 85 | VDD — Positive supply voltage |
| 腳位 86 | RA3 — Port A GPIO bit 3 |
| 腳位 87 | RA4 — Port A GPIO bit 4 |
| 腳位 88 | RA5 — Port A GPIO bit 5 |
| 腳位 89 | RA6 — Port A GPIO bit 6 |
| 腳位 90 | RA7 — Port A GPIO bit 7 |
| 腳位 91 | RA8 — Port A GPIO bit 8 |
| 腳位 92 | RA9 — Port A GPIO bit 9 |
| 腳位 93 | RA10 — Port A GPIO bit 10 |
| 腳位 94 | VSS — Ground reference |
| 腳位 95 | VDD — Positive supply voltage |
| 腳位 96 | RB0 — Port B GPIO bit 0 alternate location |
| 腳位 97 | RB1 — Port B GPIO bit 1 alternate location |
| 腳位 98 | RB2 — Port B GPIO bit 2 alternate location |
| 腳位 99 | RB3 — Port B GPIO bit 3 alternate location |
| 腳位 100 | RB4 — Port B GPIO bit 4 alternate location |
| 腳位 101 | RB5 — Port B GPIO bit 5 alternate location |
| 腳位 102 | RB6 — Port B GPIO bit 6 alternate location |
| 腳位 103 | RB7 — Port B GPIO bit 7 alternate location |
| 腳位 104 | RB8 — Port B GPIO bit 8 alternate location |
| 腳位 105 | RB9 — Port B GPIO bit 9 alternate location |
| 腳位 106 | RB10 — Port B GPIO bit 10 alternate location |
| 腳位 107 | RB11 — Port B GPIO bit 11 alternate location |
| 腳位 108 | RB12 — Port B GPIO bit 12 alternate location |
| 腳位 109 | RB13 — Port B GPIO bit 13 alternate location |
| 腳位 110 | RB14 — Port B GPIO bit 14 alternate location |
| 腳位 111 | RB15 — Port B GPIO bit 15 alternate location |
| 腳位 112 | VSS — Ground reference |
| 腳位 113 | VDD — Positive supply voltage |
| 腳位 114 | RC1 — Port C GPIO bit 1 alternate location |
| 腳位 115 | RC2 — Port C GPIO bit 2 alternate location |
| 腳位 116 | RC3 — Port C GPIO bit 3 alternate location |
| 腳位 117 | RC4 — Port C GPIO bit 4 alternate location |
| 腳位 118 | VUSB — USB internal transceiver supply |
| 腳位 119 | D- — USB D- data line alternate location |
| 腳位 120 | D+ — USB D+ data line alternate location |
| 腳位 121 | NC — Not connected (per datasheet) |
典型應用
PIC32MX460F256L-80I/BG 適用於 6 應用s: USB Peripherals and HID Devices, Industrial Control HMI Panels, Medical Point-of-Care Instruments, Embedded Web Servers and IoT Gateways, Motor Control and PWM Front-Ends, Consumer Audio and USB Streaming Devices.
USB Peripherals and HID Devices
The PIC32MX460F256L-80I/BG is ideally suited for USB peripheral designs because its on-chip USB 2.0 full-speed OTG controller eliminates external PHY cost and board area. With 80 MHz MIPS M4K performance delivering 125 DMIPS, it can sustain USB HID, CDC, or vendor-class traffic while handling concurrent application logic in C. The 32 KB SRAM comfortably accommodates USB descriptors, endpoint buffers, and protocol stacks. Its 121-TFBGA package provides the 85+ GPIO required for keyboards, custom HID devices, USB sensors, and industrial data-acquisition peripherals where USB-powered design is essential.
推薦
Industrial Control HMI Panels
Industrial HMI panels benefit from the PIC32MX460F256L-80I/BG's combination of USB connectivity, 16-channel 10-bit ADC for sensor inputs, and 5x 16-bit timers for PWM-driven backlight and motor control. The 256 KB Flash supports full graphical HMI stacks with fonts, menus, and Modbus/USB protocols simultaneously, while 32 KB SRAM provides display buffer headroom. The 80 MHz core sustains 50+ ms touch-response latency while driving TFT panels via PMP. Industrial -40°C to +85°C temperature rating matches factory floor conditions for control cabinet installations.
推薦
Medical Point-of-Care Instruments
Medical point-of-care devices such as pulse oximeters, glucose meters, and portable diagnostic tools leverage the PIC32MX460F256L-80I/BG for its USB-OTG connectivity (enabling direct PC data transfer and battery charging), low power operation at 2.5 V, and 256 KB Flash for protocol stacks. The MIPS M4K deterministic interrupt handling ensures reliable real-time response for sensor sampling at 100+ Hz. The 10-bit ADC captures photodiode or electrochemical sensor outputs with adequate resolution for clinical-grade measurements in battery-powered handheld medical instruments.
推薦
Embedded Web Servers and IoT Gateways
Embedded web server designs use the PIC32MX460F256L-80I/BG's 80 MHz performance and 256 KB Flash to run lightweight TCP/IP stacks (e.g., Microchip's MPLAB Harmony Net) for industrial IoT gateways. USB OTG enables easy field configuration via USB flash drives, while dual EUSART and I2C connect to RS-485 sensors, Modbus devices, and EEPROMs. The 32 KB SRAM holds HTTP buffers and connection state, and the parallel master port can drive external Ethernet controllers for cabled installations. This combination suits energy-monitoring, building-automation, and remote sensor aggregation nodes.
推薦
Motor Control and PWM Front-Ends
Motor control front-ends including BLDC and stepper motor drives benefit from the PIC32MX460F256L-80I/BG's five 16-bit timers that produce hardware PWM channels for 3-phase motor commutation at 20-50 kHz. The 80 MHz core computes field-oriented control (FOC) loops with sub-millisecond latency. USB OTG enables live tuning of motor parameters via host PC, while 32 KB SRAM holds control loop variables and current sense data. The 256 KB Flash stores commutation tables and protection routines, ideal for robotics, CNC auxiliary axes, and small-pump drive designs.
推薦
Consumer Audio and USB Streaming Devices
USB audio streaming devices such as USB headphones, audio interfaces, and digital musical instruments use the PIC32MX460F256L-80I/BG's full-speed USB OTG to deliver 48 kHz/16-bit stereo audio while the MIPS core handles user-interface logic. The 32 KB SRAM serves as audio buffer between USB isochronous endpoints and I2S DACs, while 256 KB Flash stores firmware, presets, and DSP routines. The 10-bit ADC reads analog control pots, and PWM timers drive LED VU meters. This configuration delivers solid performance for low-cost USB audio peripherals under $20 BOM.
推薦
推薦產品摘要
工程參考資料，適用於 PIC32MX460F256L-80I/BG — 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 | PIC32MX460F256LT-80I/BG | PIC32MX460F256L-80V/BG | PIC32MX360F256L-80I/BG | PIC32MX360F512L-80V/BG | PIC32MX440F128L-80I/BG |
|---|---|---|---|---|---|---|
| Package | 121-TFBGA (10x10) | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Max CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 512 KB (+100%) | 128 KB (-50%) |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB OTG | Yes (USB 2.0 FS OTG) | Yes (USB 2.0 FS OTG) | Yes (USB 2.0 FS OTG) | No | No | No |
| Operating Temperature | -40°C to +85°C (Industrial) | -40°C to +85°C (Industrial) | -40°C to +105°C (Extended) | -40°C to +85°C (Industrial) | -40°C to +105°C (Extended) | -40°C to +85°C (Industrial) |
| Unit Price (approx., as of 2026-10-03) | $8.20 | $8.20 | ~$8.50 | ~$7.20 | ~$9.00 | ~$7.50 |
主要差異化特點
- Integrated USB 2.0 FS OTG with on-chip transceiver (對比PIC32MX360F256L-80I/BG)
- Same 121-TFBGA footprint across PIC32MX4 family (對比PIC32MX360F512L-80V/BG)
- Higher temperature option available within same footprint (對比PIC32MX460F256L-80V/BG)
設計說明
The 121-TFBGA package requires 4-layer PCB with continuous ground plane beneath the BGA to provide reference and thermal dissipation. Use 0.4 mm ball pitch with NSMD (non-solder mask defined) pads of 0.30 mm diameter for reliable reflow assembly. Microvia-in-pad technology is recommended for breakout routing to inner layers, and an array of thermal vias under the center pad is essential for heat dissipation at 80 MHz operation.
Use a 10 µF bulk capacitor plus 0.1 µF ceramic bypass capacitor on each VDD pin pair. The VUSB pin requires a dedicated 0.1 µF decoupling capacitor placed within 2 mm of the pin to stabilize the USB transceiver supply. Place a ferrite bead or inductor between VDD and VUSB to isolate digital switching noise from the USB analog supply. Reference: Microchip PIC32MX family datasheet, Section 2.0 (Electrical Characteristics) and reference design DN10269.
Do not exceed 80 MHz core clock with 2.5 V VDD - the part only supports 80 MHz at 3.3 V. Configure the PLL multiplier carefully when using a low-frequency crystal; the FPLLIDIV and FPLLMUL registers must be sequenced per the datasheet. The MCLR pin must have a 10 kΩ pull-up to VDD for reliable reset behavior, and unused I/O pins should be configured as outputs driven low to minimize power consumption.
Route the USB D+/D- traces as a 90-ohm differential pair with matched length within 150 mil. Keep them away from switching signals and clock traces to minimize EMI and meet USB 2.0 FS signal integrity requirements. Place the USB connector's shield-to-ground connection through a ferrite bead to reduce EMI emissions per USB-IF compliance testing.
合規資訊
RoHS compliant per Microchip product page. Industrial temperature grade (-40 to +85C) but not AEC-Q100 qualified for automotive under-hood use. For AEC-Q100 qualified USB MCUs, consider PIC32MX1xx/2xx automotive variants.
