PIC32MX460F256L-80V/BG - 80MHz 32-bit MCU, 256KB Flash, USB-OTG | Microchip
MPN: PIC32MX460F256L-80V/BG ✓ Hoạt độngPIC32MX460F256L-80V/BG Tóm tắt
What is a 32-bit MCU? A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, data RAM, and a rich set of peripherals. The PIC32 family represents Microchip's 32-bit extension of the classic PIC architecture, using the industry-standard MIPS instruction set rather than the proprietary 16-bit PIC ISA, which gives it direct C-compiler compatibility, larger linear address space, and competitive MIPS-per-MHz efficiency for embedded control and connectivity applications.
Key features of the PIC32MX460F256L-80V/BG include a 32-bit MIPS M4K core with hardware multiply/divide and single-cycle MAC, 16-channel 10-bit ADC, four DMA channels, 5x 16-bit timers, two UART, two SPI, two I2C, and full-speed USB-OTG. The -80V speed grade denotes 80MHz operation over the industrial 2.3V to 3.6V supply range, while the BG suffix identifies the 121-ball TFBGA (10x10 mm) package with industrial operating temperature.
Typical applications include USB peripherals (HID, CDC, mass storage), embedded web servers and IoT gateways, industrial control and HMI panels, consumer audio devices, and portable data-loggers. The combination of USB-OTG, generous RAM (32KB), and 80MHz throughput makes this part well-suited for full-speed USB device, host, or dual-role designs.
When designing with this device, allocate PCB fan-out for the 121-ball BGA using 0.8mm-pitch escape routing and follow Microchip's reference design for USB impedance (90 ohm differential). Use the MPLAB Harmony framework or legacy MLA stack for USB stack, and choose a temperature grade matching the deployment environment (-40C to +105C industrial).
Bộ thay thế dễ dàng lắp đặt cho PIC32MX460F256L-80V/BG — 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 PIC32MX460F256L-80V/BG (cùng hình factor và footprint) — khác nhau ở Package, ADC, Timers, Core Architecture, USB Interface.
PIC32MX460F256LT-80V/BG
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PIC32MX360F512L-80V/BG
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Xem tài liệu →PIC32MX460F256L-80V/BG Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Frequency | 80 MHz |
| DMIPS Performance | 105 DMIPS |
| Flash Program Memory | 256 KB |
| SRAM Data Memory | 32 KB |
| Supply Voltage Range | 2.3 V to 3.6 V |
| USB Interface | USB 2.0 Full-Speed OTG with integrated PHY and dedicated DMA |
| ADC | 10-bit, 16 channels, 1 Msps |
| DMA Channels | 4 channels |
| Timers | 5 x 16-bit |
| UART / SPI / I2C | 2 / 2 / 2 |
| Hộp | 121-pin TFBGA (BG), 10x10 mm, 0.8 mm pitch |
| Nhiệt độ hoạt động | -40 C to +105 C (industrial, V grade) |
| Instruction Set Extensions | MIPS16e for up to 40% code compression |
| Multiply/Divide Unit | 32x32-bit hardware multiply, hardware divide, single-cycle MAC |
| Kiểu lắp đặt | Surface Mount (BGA) |
| Trạng thái RoHS | Compliant (per manufacturer product page) |
Cấu hình chân PIC32MX460F256L-80V/BG
| Chân A1 | RG15 — General purpose I/O / UART2 CTS |
| Chân A2 | VDD — Supply voltage |
| Chân A3 | RG6 — General purpose I/O |
| Chân A4 | RG7 — General purpose I/O |
| Chân A5 | RG8 — General purpose I/O |
| Chân A6 | RG9 — General purpose I/O |
| Chân A7 | VSS — Ground |
| Chân A8 | RA0 — General purpose I/O |
| Chân A9 | RA1 — General purpose I/O |
| Chân A10 | RA2 — General purpose I/O |
| Chân A11 | RA3 — General purpose I/O |
| Chân B1 | RG14 — General purpose I/O |
| Chân B2 | RG13 — General purpose I/O |
| Chân B3 | RG12 — General purpose I/O |
| Chân B4 | VDD — Supply voltage |
| Chân B5 | RF4 — General purpose I/O |
| Chân B6 | RF5 — General purpose I/O |
| Chân B7 | RF3 — General purpose I/O |
| Chân B8 | RF2 — General purpose I/O |
| Chân B9 | RF6 — General purpose I/O |
| Chân B10 | RF7 — General purpose I/O |
| Chân B11 | RF8 — General purpose I/O |
| Chân C1 | VSS — Ground |
| Chân C2 | RG0 — General purpose I/O |
| Chân C3 | RG1 — General purpose I/O |
| Chân C4 | RG2 — General purpose I/O |
| Chân C5 | RG3 — General purpose I/O |
| Chân C6 | VBUS — USB VBUS detect |
| Chân C7 | USBID — USB OTG ID pin |
| Chân C8 | D- — USB D- differential data line |
| Chân C9 | D+ — USB D+ differential data line |
| Chân C10 | VUSB — USB transceiver supply (3.3V) |
| Chân C11 | VSS — Ground |
| Chân D1 | RD8 — General purpose I/O |
| Chân D2 | RD9 — General purpose I/O |
| Chân D3 | RD10 — General purpose I/O |
| Chân D4 | RD11 — General purpose I/O |
| Chân D5 | RD0 — General purpose I/O |
| Chân D6 | RD1 — General purpose I/O |
| Chân D7 | RD2 — General purpose I/O |
| Chân D8 | RD3 — General purpose I/O |
| Chân D9 | RD4 — General purpose I/O |
| Chân D10 | RD5 — General purpose I/O |
| Chân D11 | RD6 — General purpose I/O |
| Chân E1 | RD7 — General purpose I/O |
| Chân E2 | RC1 — General purpose I/O |
| Chân E3 | RC2 — General purpose I/O |
| Chân E4 | RC3 — General purpose I/O |
| Chân E5 | RC4 — General purpose I/O |
| Chân E6 | VDD — Supply voltage |
| Chân E7 | VSS — Ground |
| Chân E8 | RF0 — General purpose I/O |
| Chân E9 | RF1 — General purpose I/O |
| Chân E10 | RE0 — General purpose I/O |
| Chân E11 | RE1 — General purpose I/O |
| Chân F1 | RE2 — General purpose I/O |
| Chân F2 | RE3 — General purpose I/O |
| Chân F3 | RE4 — General purpose I/O |
| Chân F4 | RE5 — General purpose I/O |
| Chân F5 | RE6 — General purpose I/O |
| Chân F6 | RE7 — General purpose I/O |
| Chân F7 | RG4 — General purpose I/O |
| Chân F8 | RG5 — General purpose I/O |
| Chân F9 | AVDD — Analog supply voltage |
| Chân F10 | AVSS — Analog ground |
| Chân F11 | RA4 — General purpose I/O |
| Chân G1 | RC14 — General purpose I/O |
| Chân G2 | RC15 — General purpose I/O |
| Chân G3 | RB0 — General purpose I/O / PGED1 |
| Chân G4 | RB1 — General purpose I/O / PGEC1 |
| Chân G5 | RB2 — General purpose I/O |
| Chân G6 | RB3 — General purpose I/O |
| Chân G7 | RB4 — General purpose I/O |
| Chân G8 | RB5 — General purpose I/O |
| Chân G9 | RB6 — General purpose I/O |
| Chân G10 | RB7 — General purpose I/O |
| Chân G11 | RA5 — General purpose I/O |
| Chân H1 | RB8 — General purpose I/O |
| Chân H2 | RB9 — General purpose I/O |
| Chân H3 | RB10 — General purpose I/O |
| Chân H4 | RB11 — General purpose I/O |
| Chân H5 | RB12 — General purpose I/O |
| Chân H6 | RB13 — General purpose I/O |
| Chân H7 | RB14 — General purpose I/O |
| Chân H8 | RB15 — General purpose I/O |
| Chân H9 | RA6 — General purpose I/O |
| Chân H10 | RA7 — General purpose I/O |
| Chân H11 | AVDD — Analog supply voltage |
| Chân J1 | VDD — Supply voltage |
| Chân J2 | VSS — Ground |
| Chân J3 | RC0 — General purpose I/O |
| Chân J4 | RD12 — General purpose I/O |
| Chân J5 | RD13 — General purpose I/O |
| Chân J6 | RD14 — General purpose I/O |
| Chân J7 | RD15 — General purpose I/O |
| Chân J8 | RC5 — General purpose I/O |
| Chân J9 | RC6 — General purpose I/O |
| Chân J10 | RC7 — General purpose I/O |
| Chân J11 | RC8 — General purpose I/O |
| Chân K1 | RC9 — General purpose I/O |
| Chân K2 | RC10 — General purpose I/O |
| Chân K3 | RC11 — General purpose I/O |
| Chân K4 | RC12 — General purpose I/O |
| Chân K5 | RC13 — General purpose I/O |
| Chân K6 | VDDCORE — Core voltage (internal regulator output) |
| Chân K7 | ENVREG — Voltage regulator enable |
| Chân K8 | VCAP — Voltage regulator bypass cap |
| Chân K9 | OSC1 — Crystal oscillator input |
| Chân K10 | OSC2 — Crystal oscillator output |
| Chân K11 | VSS — Ground |
Ứng dụng tiêu biểu
PIC32MX460F256L-80V/BG phù hợp cho 6 Áp dụngs: USB Full-Speed Peripheral Device, USB On-The-Go Dual-Role Devices, Industrial Control and HMI, Embedded Web Server / IoT Gateway, Portable Data Loggers, Consumer Audio Devices.
USB Full-Speed Peripheral Device
The PIC32MX460F256L-80V/BG is purpose-built for USB full-speed (12 Mbps) peripheral applications such as HID controllers, CDC virtual COM ports, MSD readers, and audio class devices. Its integrated USB 2.0 OTG controller with on-chip PHY eliminates the external USB transceiver, reducing BOM by roughly 1 USD per board and saving board area for compact dongles and instrumentation front-ends. The dedicated DMA channel offloads USB endpoint memory transfers from the CPU, freeing MIPS for application logic. With 256KB Flash and 32KB RAM, the device comfortably runs Microchip's MLA or MPLAB Harmony USB stacks alongside custom application code; engineers typically reserve 50-60KB for stack and class drivers. The 80MHz MIPS M4K core provides 105 DMIPS, more than sufficient for USB polling latency requirements of 1ms in full-speed mode.
Được đề xuất
USB On-The-Go Dual-Role Devices
The PIC32MX460F256L-80V/BG supports USB OTG dual-role operation, making it ideal for devices that can act as either USB host or device depending on cable insertion, such as tablet accessories, industrial data loggers that import from USB sticks, or portable test instruments. The integrated OTG PHY handles session request protocol (SRP) and host negotiation protocol (HNP) without external circuitry. The 32KB SRAM accommodates USB host stack plus FAT32 file system buffers for mass-storage reads, while 256KB Flash holds both USB host and device stacks. Designers commonly pair this MCU with external level shifters for 5V VBUS handling; Microchip's PIC32MX OTG reference design demonstrates role-swap timing under 200 ms.
Được đề xuất
Industrial Control and HMI
With 16-channel 10-bit ADC (1 Msps), 5x 16-bit timers, 4 DMA channels, and the 121-ball TFBGA exposing the full GPIO/peripheral count, the PIC32MX460F256L-80V/BG fits mid-range industrial control applications including PLC I/O modules, motor-control auxiliary boards, sensor hubs, and human-machine interface (HMI) panels. The 10-bit ADC is adequate for temperature, pressure, and potentiometer feedback in HMI; the 80MHz core drives 320x240 QVGA TFTs with Microchip's gfx library. The V-temp -40C to +105C range covers most factory-floor enclosures, while MIPS16e code compression helps fit rich HMI graphics in 256KB Flash. Typical HMI tasks cycle in under 20ms with DMA handling ADC bursts in background.
Được đề xuất
Embedded Web Server / IoT Gateway
The 80MHz MIPS M4K core, 32KB RAM, and TCP/IP stack footprint make the PIC32MX460F256L-80V/BG a viable platform for lightweight embedded web servers, MQTT IoT gateways, and Ethernet-to-serial bridges. Microchip's Microchip Harmony TCP/IP stack plus HTTP server consumes roughly 30-40KB Flash with one TCP socket, leaving ample room for application logic and a small web UI. The four DMA channels allow efficient SPI/uart sensor polling without CPU intervention. Pair with an external ENC28J60 or MRF24WG0MA Wi-Fi transceiver over SPI; throughput of 2-3 Mbps is realistic at 80MHz. V-temp allows deployment in semi-outdoor enclosures.
Được đề xuất
Portable Data Loggers
The PIC32MX460F256L-80V/BG suits battery-powered data loggers measuring temperature, humidity, vibration, or other slow-changing signals. Its 16-channel 10-bit ADC multiplexed through the analog MUX captures multiple sensors with the four DMA channels moving conversion results to RAM without CPU wake-up, while the MIPS16e mode keeps active current low. The 32KB SRAM holds thousands of timestamped samples; an external SPI Flash or SD card extends storage. USB-OTG enables direct file offload to a PC host without a separate cable. With peripheral library sleep modes, average current can drop below 5mA, supporting weeks of logging on a 2000mAh Li-ion cell.
Được đề xuất
Consumer Audio Devices
USB audio class 1.0 devices (headsets, speakers, microphones) are a natural fit for the PIC32MX460F256L-80V/BG thanks to its full-speed USB-OTG and 80MHz throughput. The MIPS M4K core handles 48 kHz / 16-bit stereo USB audio streaming over isochronous endpoints with cycles to spare for DSP effects or volume control. External I2S DACs connect over the two SPI ports reconfigured as I2S, and the 10-bit ADC supports line-input monitoring. 256KB Flash comfortably fits USB audio class drivers plus a small audio-processing library. V-temp allows operation in enclosed speaker cabinets under continuous load.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX460F256L-80V/BG — 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 | PIC32MX460F256LT-80V/BG | PIC32MX460F256L-80I/BG | PIC32MX460F512L-80V/BG | PIC32MX460F256LT-80I/BG | PIC32MX360F512L-80V/BG | PIC32MX360F256L-80V/BG |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 121-ball TFBGA (10x10 mm) | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same |
| Core / Max Frequency | MIPS M4K / 80 MHz | MIPS M4K / 80 MHz | MIPS M4K / 80 MHz | MIPS M4K / 80 MHz | MIPS M4K / 80 MHz | MIPS M4K / 80 MHz | MIPS M4K / 80 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 512 KB (+100%) | 256 KB | 512 KB (+100%) | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB-OTG | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | No USB | No USB |
| Operating Temperature (V/I grade) | -40C to +105C (V) | -40C to +105C (V) | -40C to +85C (I) | -40C to +105C (V) | -40C to +85C (I) | -40C to +105C (V) | -40C to +105C (V) |
| ADC Channels / Resolution | 16 ch / 10-bit | 16 ch / 10-bit | 16 ch / 10-bit | 16 ch / 10-bit | 16 ch / 10-bit | 16 ch / 10-bit | 16 ch / 10-bit |
Bảo phân biệt quan trọng
- Highest-density package exposes maximum peripherals (vsPIC32MX360F256L-80I/BG (100-pin TQFP variants))
- Integrated USB-OTG with on-chip PHY (vsPIC32MX360F256L-80V/BG)
- Industrial V-grade temperature option (-40C to +105C) (vsPIC32MX460F256L-80I/BG)
Ghi chú thiết kế
The 121-ball TFBGA (10x10 mm, 0.8 mm pitch) requires 4-layer PCB with microvia stackups (HDI) for reliable assembly. Escape-route the inner balls using 0.15 mm trace/space on the top layer with via-in-pad or dog-bone fan-out. Match the USB D+/D- pair to 90 ohm differential impedance with length matching within 150 mils per the Microchip PIC32MX USB hardware design checklist. Place 100nF decoupling within 2 mm of every VDD pin and a 10uF bulk near the IC.
The PIC32MX460F256L-80V/BG requires a single 2.3-3.6V supply on VDD pins plus a stable VDDCORE output. The internal 1.8V regulator requires a 10uF low-ESR ceramic capacitor on the VCAP pin (typically X5R/X7R) placed within 5 mm. The ENVREG pin should be tied to VDD (not floated) to enable the regulator. During USB bus-powered designs, ensure VBUS detection triggers before enumeration and that VUSB has its own 100nF + 4.7uF decoupling to handle USB inrush current.
Common pitfalls with the PIC32MX460 series include: (1) forgetting to configure JTAG/TRACE pins as GPIO via CFGCON register to free RB7-RB10 for application use; (2) failing to commit the Flash wait-state to match CPU speed (80MHz requires 2 wait states for Flash access); (3) not enabling the peripheral's analog/digital select (ANSEL) registers before using ADC inputs; (4) connecting ICSP pins (PGEC1/PGED1) directly to application circuitry without isolating for in-circuit programming.
At 80MHz in the 121-ball TFBGA (BG), typical core current is 50-70 mA active plus 20 mA for peripherals. Use the JEDEC EIA/JESD51 standard theta-JA of approximately 30 C/W for the 10x10 mm BGA on a 4-layer JEDEC test board. For sealed enclosures, derate by 30-40% and provide thermal vias under the exposed center balls. For V-temp applications, validate at 105C ambient in chamber for at least 48 hours to catch thermal-induced timing drift in USB and ADC paths.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page; lead-free BG package; AEC-Q100 not applicable for consumer/industrial MCU - not automotive qualified
