PIC32MX460F512LT-80I/PT - 80MHz 32-bit MCU 512KB Flash TQFP-100
MPN: PIC32MX460F512LT-80I/PT ✓ Hoạt độngPIC32MX460F512LT-80I/PT Tóm tắt
What is a PIC32MX microcontroller? A PIC32MX is a 32-bit MIPS-based microcontroller from Microchip Technology that combines high computational throughput (up to 80 MHz core, 1.56 DMIPS/MHz) with rich peripheral integration including USB, CAN, and ADC peripherals. PIC32MX belongs to the taxonomy: microcontroller -> MCU -> embedded processor -> semiconductor, and sits within the broader PIC32 family alongside PIC32MM, PIC32MZ, and PIC32MX variants. The 'L' suffix denotes a 100-pin TQFP package, while the 'F512' field encodes the Flash memory size.
Key features of this part include the 80 MHz MIPS32 M4K core with hardware multiply/divide, 512 KB single-cycle Flash with pre-fetch buffer, 32 KB SRAM, full-speed USB-OTG with on-chip transceiver, and a 16-channel 10-bit ADC capable of 1 Msps conversion. Communication peripherals include UART, SPI, I2C, and parallel master port, providing flexible connectivity for embedded designs.
Architecturally, the PIC32MX460 uses a 5-stage pipeline MIPS32 M4K core with separate 16 KB instruction and 4 KB data caches. The Prefetch Cache Controller reduces Flash wait states, enabling near-zero-penalty execution from Flash at 80 MHz. The part's DMA controller offloads data movement between peripherals and memory, freeing the CPU for application logic.
Typical applications include industrial control panels, USB peripherals (HID, CDC, mass storage), graphical HMI displays, embedded dataloggers, and motor control subsystems. The wide peripheral set and substantial RAM/Flash make it suitable for protocol-conversion gateways and point-of-sale terminals.
When designing with this MCU, note the 2.5 V to 3.6 V supply constraint; many modern sensors require 3.3 V regulators with high PSRR for noise-sensitive ADC measurements. Decoupling capacitors (100 nF + 10 uF) should be placed within 5 mm of each power pin pair to minimize switching noise. The 'I' suffix indicates industrial temperature grade (-40 C to +85 C).
This page synthesizes distributor pricing, drop-in PIC32 alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX460F512LT-80I/PT — 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 PIC32MX460F512LT-80I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, USB, DMA Channels.
PIC32MX460F512L-80I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX460F512L-80V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX460F512L-80V/BG
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX450F256L-120/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX360F512L-80V/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX440F512HT-80V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX460F512LT-80I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K |
| Core Frequency | 80 MHz |
| Bit Width | 32-bit |
| Program Memory (Flash) | 512 KB |
| RAM | 32 KB |
| Hộp | 100-pin TQFP (PT) |
| Package Size | 12 x 12 mm |
| Điện áp cung cấp | 2.5 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| I/O Pins | 83 |
| ADC | 10-bit, 16-channel, 1 Msps |
| USB | USB-OTG, full-speed (12 Mbps) |
| DMA Channels | 4 |
| Communication Peripherals | 2x I2C, 2x SPI, 2x UART |
| Timers | 5x 16-bit, 2x 32-bit |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant (Lead-free) |
| Moisture Sensitivity Level | MSL 3 |
Cấu hình chân PIC32MX460F512LT-80I/PT
| Chân 1 | RG15 — General purpose I/O / peripheral pin |
| Chân 2 | SDA3/RA15 — I2C3 data signal |
| Chân 3 | SCL3/RA14 — I2C3 clock signal |
| Chân 4 | RA9 — General purpose I/O |
| Chân 5 | RA10 — General purpose I/O |
| Chân 6 | RB5 — General purpose I/O / programming pin |
| Chân 7 | RB4 — General purpose I/O / programming pin |
| Chân 8 | RB3 — General purpose I/O |
| Chân 9 | RB2 — General purpose I/O |
| Chân 10 | RB1 — General purpose I/O |
| Chân 11 | RB0 — General purpose I/O |
| Chân 12 | RB6 — General purpose I/O / ICSP PGEC2 |
| Chân 13 | RB7 — General purpose I/O / ICSP PGED2 |
| Chân 14 | RB8 — General purpose I/O |
| Chân 15 | RB9 — General purpose I/O |
| Chân 16 | RB10 — General purpose I/O |
| Chân 17 | RB11 — General purpose I/O |
| Chân 18 | RB12 — General purpose I/O |
| Chân 19 | RB13 — General purpose I/O |
| Chân 20 | RB14 — General purpose I/O |
| Chân 21 | RB15 — General purpose I/O |
| Chân 22 | RD8 — General purpose I/O / PMP data |
| Chân 23 | RD9 — General purpose I/O / PMP data |
| Chân 24 | RD10 — General purpose I/O / PMP data |
| Chân 25 | RD11 — General purpose I/O / PMP data |
| Chân 26 | RD12 — General purpose I/O / PMP data |
| Chân 27 | RD13 — General purpose I/O / PMP data |
| Chân 28 | RD14 — General purpose I/O / PMP data |
| Chân 29 | RD15 — General purpose I/O / PMP data |
| Chân 30 | RG6 — General purpose I/O |
| Chân 31 | RG7 — General purpose I/O |
| Chân 32 | RG8 — General purpose I/O |
| Chân 33 | RG9 — General purpose I/O |
| Chân 34 | VDD — Positive supply voltage (2.5V-3.6V) |
| Chân 35 | VSS — Ground reference |
| Chân 36 | RF0 — General purpose I/O |
| Chân 37 | RF1 — General purpose I/O |
| Chân 38 | RF2 — General purpose I/O |
| Chân 39 | RF3 — General purpose I/O |
| Chân 40 | RF4 — General purpose I/O |
| Chân 41 | RF5 — General purpose I/O |
| Chân 42 | RF6 — General purpose I/O |
| Chân 43 | RF7 — General purpose I/O |
| Chân 44 | RF8 — General purpose I/O |
| Chân 45 | RG0 — General purpose I/O |
| Chân 46 | RG1 — General purpose I/O |
| Chân 47 | AVDD — Analog positive supply |
| Chân 48 | AVSS — Analog ground |
| Chân 49 | RA0 — Analog input / general purpose I/O |
| Chân 50 | RA1 — Analog input / general purpose I/O |
| Chân 51 | RA2 — Analog input / general purpose I/O |
| Chân 52 | RA3 — Analog input / general purpose I/O |
| Chân 53 | RA4 — Analog input / general purpose I/O |
| Chân 54 | RA5 — Analog input / general purpose I/O |
| Chân 55 | RD0 — General purpose I/O |
| Chân 56 | RD1 — General purpose I/O |
| Chân 57 | RD2 — General purpose I/O |
| Chân 58 | RD3 — General purpose I/O |
| Chân 59 | RD4 — General purpose I/O |
| Chân 60 | RD5 — General purpose I/O |
| Chân 61 | RD6 — General purpose I/O |
| Chân 62 | RD7 — General purpose I/O |
| Chân 63 | RC12 — General purpose I/O / USB D- |
| Chân 64 | RC15 — General purpose I/O / USB D+ |
| Chân 65 | RC13 — General purpose I/O |
| Chân 66 | RC14 — General purpose I/O |
| Chân 67 | VDD — Positive supply voltage |
| Chân 68 | VSS — Ground reference |
| Chân 69 | RC1 — General purpose I/O |
| Chân 70 | RC2 — General purpose I/O |
| Chân 71 | RC3 — General purpose I/O |
| Chân 72 | RC4 — General purpose I/O |
| Chân 73 | TGND — Ground reference for USB transceiver |
| Chân 74 | RC5 — General purpose I/O |
| Chân 75 | VDD — Positive supply voltage |
| Chân 76 | VUSB — USB 3.3V transceiver supply |
| Chân 77 | VSS — Ground reference |
| Chân 78 | RC6 — General purpose I/O |
| Chân 79 | RC7 — General purpose I/O |
| Chân 80 | RC8 — General purpose I/O |
| Chân 81 | RC9 — General purpose I/O |
| Chân 82 | RE0 — General purpose I/O / PMP control |
| Chân 83 | RE1 — General purpose I/O / PMP control |
| Chân 84 | RE2 — General purpose I/O / PMP control |
| Chân 85 | RE3 — General purpose I/O / PMP control |
| Chân 86 | RE4 — General purpose I/O / PMP control |
| Chân 87 | RE5 — General purpose I/O / PMP control |
| Chân 88 | RE6 — General purpose I/O / PMP control |
| Chân 89 | RE7 — General purpose I/O / PMP control |
| Chân 90 | RG2 — General purpose I/O |
| Chân 91 | RG3 — General purpose I/O |
| Chân 92 | RG12 — General purpose I/O |
| Chân 93 | RG13 — General purpose I/O |
| Chân 94 | RG14 — General purpose I/O |
| Chân 95 | RF13 — General purpose I/O |
| Chân 96 | RF12 — General purpose I/O |
| Chân 97 | RF2 — General purpose I/O |
| Chân 98 | OSC1/CLKI/RC12 — External oscillator input |
| Chân 99 | OSC2/CLKO/RC15 — External oscillator output |
| Chân 100 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC32MX460F512LT-80I/PT phù hợp cho 7 Áp dụngs: USB Industrial Peripherals, Graphical HMI Displays, Industrial Control Panels, Point-of-Sale Terminals, Embedded Protocol Converters, Portable Data Acquisition Systems, Automotive Infotainment Accessories.
USB Industrial Peripherals
The PIC32MX460F512LT-80I/PT's integrated USB-OTG controller makes it ideal for industrial USB peripherals such as data loggers, barcode scanners, and HID devices. The 80 MHz MIPS32 M4K core at 1.56 DMIPS/MHz handles USB stack processing and application logic concurrently, while 32 KB SRAM accommodates USB descriptors and bulk transfer buffers. The 100-pin TQFP footprint exposes 83 GPIO for sensor interfaces, LEDs, and communication ports, allowing complete USB-to-UART, USB-to-SPI, or USB-to-I2C bridge designs. Compared to external USB controller solutions, the integrated transceiver saves PCB area and reduces BOM cost by approximately USD 1.50 per unit.
Được đề xuất
Graphical HMI Displays
The 80 MHz core and 32 KB SRAM of PIC32MX460F512LT-80I/PT support graphical HMI displays with small LCD/TFT panels. The Parallel Master Port (PMP) peripheral directly interfaces with 8/16-bit graphical LCDs, while the DMA controller offloads framebuffer updates to minimize CPU overhead. With 512 KB Flash, designers can store multiple bitmap fonts, image assets, and graphical state machine code without external memory. The 10-bit ADC at 1 Msps enables touch-screen digitizer interfaces, making this MCU a single-chip solution for industrial control panels and appliance user interfaces up to 320x240 resolution.
Được đề xuất
Industrial Control Panels
With 83 GPIO and the industrial -40 C to +85 C temperature range, the PIC32MX460F512LT-80I/PT serves industrial control panels requiring multiple digital I/O, encoder inputs, and communication interfaces. The 16-channel 10-bit ADC at 1 Msps samples analog sensors for process variables (temperature, pressure, flow), while two UART ports support RS-232/RS-485 industrial networks. The 5x 16-bit and 2x 32-bit timers generate PWM outputs for motor control and stepper sequencing. The 512 KB Flash accommodates IEC 61131-3 runtime or proprietary PLC firmware, while 32 KB RAM handles real-time control loops with deterministic interrupt latency under 100 ns.
Được đề xuất
Point-of-Sale Terminals
Point-of-sale terminals benefit from PIC32MX460F512LT-80I/PT's USB-OTG for receipt printers and barcode readers combined with UART for magnetic stripe readers and serial peripherals. The 80 MHz MIPS core executes transaction processing and cryptographic routines within PCI/PIN timing constraints. The 512 KB Flash stores transaction logic, while 32 KB SRAM handles real-time buffers. The integrated USB host capability enables direct printer/scanner connection without external hub chips. The industrial temperature range supports deployment in retail environments with variable thermal conditions, while the 100-pin TQFP allows compact PCB layouts below 50 mm x 50 mm.
Được đề xuất
Embedded Protocol Converters
The PIC32MX460F512LT-80I/PT functions as a multi-protocol gateway between industrial fieldbus segments. Two UART ports support RS-232/RS-485, two SPI channels connect to sensor arrays, and I2C handles local peripheral communication. The DMA controller moves data between peripheral buffers and RAM without CPU intervention, enabling deterministic protocol conversion at 1 Mbps sustained throughput. USB-OTG provides configuration and diagnostics interface via CDC class. With 512 KB Flash, Modbus RTU/ASCII, Modbus TCP, CANopen, and proprietary protocols can coexist in a single firmware image, eliminating external protocol ICs and reducing gateway BOM cost by USD 3-5.
Được đề xuất
Portable Data Acquisition Systems
Portable data acquisition systems leverage PIC32MX460F512LT-80I/PT's 1 Msps 16-channel ADC and 32 KB SRAM to capture multi-channel analog waveforms for instrumentation and test equipment. The DMA controller streams ADC conversions to RAM at full 1 Msps rate, enabling transient capture up to 32 ms at maximum sample rate. USB-OTG supports real-time data streaming to a host PC for visualization, while 512 KB Flash stores configuration profiles and calibration constants. The 2.5 V to 3.6 V supply range allows direct Li-Ion battery operation with voltage monitoring via internal ADC, supporting portable field measurement applications up to 8 hours on a single 18650 cell.
Được đề xuất
Automotive Infotainment Accessories
While not AEC-Q100 qualified, PIC32MX460F512LT-80I/PT is widely used in aftermarket automotive infotainment accessories such as OBD-II interfaces, USB media players, and auxiliary input modules. USB-OTG enables direct connection to USB mass storage and smartphones, while two UART channels support OBD-II communication at 500 kbps. The 80 MHz MIPS core handles audio decoding and CAN-to-USB bridging for vehicle telemetry displays. The 100-pin TQFP allows compact module designs under 30 mm x 30 mm, while 512 KB Flash stores multi-protocol firmware (CAN, K-Line, J1850 VPW/PWM) and audio codec interfaces for headless infotainment applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX460F512LT-80I/PT — 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 | PIC32MX460F512L-80I/PT | PIC32MX460F512L-80V/PT | PIC32MX450F256L-120/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PT) | TQFP-100 (PT) - same | TQFP-100 (PT) - same | TQFP-100 (PT) - same |
| Core Frequency | 80 MHz | 80 MHz | 80 MHz | 120 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 256 KB |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB |
| USB-OTG | Yes (full-speed) | Yes (full-speed) | Yes (full-speed) | No |
| ADC | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Commercial 0C to +70C | Industrial -40C to +85C |
| I/O Pins | 83 | 83 | 83 | 83 |
| Pricing (1pc, USD) | 10.50 | 10.50 | 10.30 | 9.20 |
Bảo phân biệt quan trọng
- Integrated USB-OTG with on-chip transceiver (vsPIC32MX450F256L-120/PT)
- Industrial temperature grade vs commercial (vsPIC32MX460F512L-80V/PT)
- Tape-and-reel packaging for SMT assembly (vsPIC32MX460F512L-80I/PT)
- Full 512 KB Flash vs reduced Flash variants (vsPIC32MX450F256L-120/PT)
Ghi chú thiết kế
The PIC32MX460F512LT-80I/PT requires a stable 3.3 V supply with 2.5 V minimum. Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD/VSS pin pair, plus a single 10 uF bulk capacitor at the regulator output. For noise-sensitive ADC applications, use a separate low-noise LDO (such as MCP1700) for AVDD with at least 60 dB PSRR at 1 MHz. The VUSB pin requires a 100 nF decoupling capacitor and the USB bus voltage must be supplied separately if the device operates in USB host mode.
At 80 MHz with all peripherals active, the PIC32MX460F512LT-80I/PT consumes approximately 65 mA from the 3.3 V supply, dissipating about 215 mW. The TQFP-100 package has theta_JA around 45 C/W, yielding a 10 C junction temperature rise above ambient in still air. For industrial -40 C to +85 C operation, ensure ambient temperature stays below 75 C with no forced airflow. For closed enclosures, derate maximum clock frequency by 20% if temperature exceeds 70 C.
Route the 80 MHz system clock traces (OSC1, OSC2) with maximum 25 mm length and guard them with ground traces on both sides. The USB D+/D- differential pair must be routed with 90-ohm differential impedance, length-matched within 2 mm, and kept away from switching signals. Place the 12 MHz crystal or oscillator within 10 mm of the OSC pins with short ground return via nearby VSS. The ICSP programming pins (PGECx/PGEDx) must be accessible for in-circuit programming - reserve test points or a 2x5 header footprint.
Common pitfalls include: (1) Forgetting to configure unused I/O pins as outputs to minimize current consumption, (2) Using the internal 8 MHz RC oscillator without calibration for USB applications which require the 48 MHz USB clock derived from the primary oscillator, (3) Exceeding the 3.6 V absolute maximum on any pin which can latch-up the part, (4) Not enabling the JTAG port disable bit in DEVCFG0 when using all 83 GPIO - the JTAG pins default to JTAG mode at reset, and (5) Stack overflow in interrupt service routines when nesting interrupts deeply - the PIC32MX has a 1 KB stack for kernel mode.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Lead-free matte-tin plating. Not AEC-Q100 qualified - select PIC32MX portfolio automotive parts for vehicle applications. Halogen-free status not explicitly listed in datasheet - confirm with manufacturer for green-compliance requirements.
