PIC32MX460F256LT-80V/PT - 80MHz 32-bit MCU 256KB Flash USB-OTG | Microchip
MPN: PIC32MX460F256LT-80V/PT ✓ Hoạt độngPIC32MX460F256LT-80V/PT Tóm tắt
What is a PIC32MX microcontroller? PIC32MX is Microchip's MIPS32 M4K-based 32-bit MCU family that bridges 8/16-bit PIC and 32-bit ARM-class performance. It executes one instruction per cycle plus single-cycle MAC, Harvard cache, and DSP extensions. In the taxonomy: PIC32MX -> 32-bit microcontroller -> MIPS M4K core -> embedded processor -> semiconductor. Its role is system orchestration, glue logic, and DSP tasks for cost-sensitive embedded products.
Key features: 80 MHz core, 256 KB Flash (256K x 8), 32 KB SRAM, USB-OTG full-speed (12 Mbps), 85 I/O pins, 16-channel 10-bit ADC up to 1 Msps, two I2C, two UART, two SPI, PMP, RTCC, 5 16-bit timers, 5 input-capture and 5 output-compare, and JTAG + 2-wire ICSP debug. The 'T' suffix denotes tape-and-reel and 'V' denotes the 2.0 V-3.6 V extended operating range; 'PT' is the 100-pin TQFP.
Architecturally the part uses 5-stage pipeline M4K core with separate 16 KB instruction / 4 KB data caches, prefetch module, and dedicated DMA into USB and PMP. Peripherals are mapped on Microchip's peripheral-libraries-compatible PPS that simplifies pin mapping on TQFP packages.
Typical applications are USB peripherals (HID, CDC, MSD, audio class), embedded graphical interfaces driving QVGA TFT panels, industrial sensing nodes with 10-bit ADC, and PIC-tailored IoT gateways integrating TCP/IP via Microchip's TCP/IP stack.
Design note - the 80 MHz rating is achievable with the on-chip 8 MHz FRC plus 10x PLL; ensure the PLL loop-filter layout per datasheet and respect VDD 2.3 V-3.6 V when designing analog references.
This page consolidates distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX460F256LT-80V/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 PIC32MX460F256LT-80V/PT (cùng hình factor và footprint) — khác nhau ở ADC, Core Architecture, Package, Timers, MSL Level.
PIC32MX460F256L-80V/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX460F256LT-80I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX450F256L-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX360F256L-80V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX460F512LT-80V/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX440F256HT-80I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX340F128H-80V/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX460F256LT-80V/PT Tỷ lệ tối đa & tính chất điện
| Core | MIPS32 M4K |
| Core Architecture | 32-bit RISC |
| Maximum Clock Speed | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM | 32 KB (32K x 8) |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Number of I/O | 85 |
| ADC | 10-bit, 16-channel |
| USB | USB-OTG Full-Speed (12 Mbps) |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C, PMP |
| Timers | 5x 16-bit |
| Input Capture / Output Compare | 5 / 5 |
| Oscillator | Internal |
| Hộp | 100-pin TQFP (PT), 12x12 mm |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 |
| Lead-Free / RoHS | Yes / Lead-free (finish type per datasheet) |
Cấu hình chân PIC32MX460F256LT-80V/PT
| Chân 1 | RG15 — General purpose I/O / PWM |
| Chân 2 | RG14 — General purpose I/O |
| Chân 3 | VDD — Supply voltage 2.3V-3.6V |
| Chân 4 | VSS — Ground |
| Chân 5 | RA0 — General purpose I/O / analog input AN0 |
| Chân 6 | RA1 — General purpose I/O / analog input AN1 |
| Chân 7 | RA2 — General purpose I/O / analog input AN2 |
| Chân 8 | RA3 — General purpose I/O / analog input AN3 |
| Chân 9 | RA4 — General purpose I/O / analog input AN4 |
| Chân 10 | RA5 — General purpose I/O / analog input AN5 |
| Chân 11 | VSS — Ground |
| Chân 12 | RA6 — General purpose I/O / analog input AN6 |
| Chân 13 | RA7 — General purpose I/O / analog input AN7 |
| Chân 14 | RB0 — General purpose I/O / PGED1 programming data |
| Chân 15 | RB1 — General purpose I/O / PGEC1 programming clock |
| Chân 16 | RB2 — General purpose I/O / analog input AN8 |
| Chân 17 | RB3 — General purpose I/O / analog input AN9 |
| Chân 18 | RB4 — General purpose I/O / analog input AN10 |
| Chân 19 | RB5 — General purpose I/O / analog input AN11 |
| Chân 20 | RB6 — General purpose I/O / PGED2 |
| Chân 21 | RB7 — General purpose I/O / PGEC2 |
| Chân 22 | RB8 — General purpose I/O / analog input AN12 |
| Chân 23 | RB9 — General purpose I/O / analog input AN13 |
| Chân 24 | RB10 — General purpose I/O / analog input AN14 |
| Chân 25 | RB11 — General purpose I/O / analog input AN15 |
| Chân 26 | VSS — Ground |
| Chân 27 | VDD — Supply voltage 2.3V-3.6V |
| Chân 28 | RB12 — General purpose I/O |
| Chân 29 | RB13 — General purpose I/O |
| Chân 30 | RB14 — General purpose I/O |
| Chân 31 | RB15 — General purpose I/O / OCFB |
| Chân 32 | RC0 — General purpose I/O |
| Chân 33 | RC1 — General purpose I/O |
| Chân 34 | RC2 — General purpose I/O |
| Chân 35 | RC3 — General purpose I/O |
| Chân 36 | RC4 — General purpose I/O |
| Chân 37 | RC5 — General purpose I/O |
| Chân 38 | RC6 — General purpose I/O |
| Chân 39 | RC7 — General purpose I/O |
| Chân 40 | RC8 — General purpose I/O |
| Chân 41 | RC9 — General purpose I/O |
| Chân 42 | VSS — Ground |
| Chân 43 | VDD — Supply voltage 2.3V-3.6V |
| Chân 44 | RC10 — General purpose I/O |
| Chân 45 | RC11 — General purpose I/O |
| Chân 46 | RC12 — General purpose I/O |
| Chân 47 | RC13 — General purpose I/O |
| Chân 48 | RC14 — General purpose I/O |
| Chân 49 | RC15 — General purpose I/O |
| Chân 50 | VSS — Ground |
| Chân 51 | RD0 — General purpose I/O |
| Chân 52 | RD1 — General purpose I/O |
| Chân 53 | RD2 — General purpose I/O |
| Chân 54 | RD3 — General purpose I/O |
| Chân 55 | RD4 — General purpose I/O |
| Chân 56 | RD5 — General purpose I/O |
| Chân 57 | RD6 — General purpose I/O |
| Chân 58 | RD7 — General purpose I/O |
| Chân 59 | RD8 — General purpose I/O |
| Chân 60 | RD9 — General purpose I/O |
| Chân 61 | RD10 — General purpose I/O |
| Chân 62 | RD11 — General purpose I/O |
| Chân 63 | VSS — Ground |
| Chân 64 | VDD — Supply voltage 2.3V-3.6V |
| Chân 65 | RD12 — General purpose I/O |
| Chân 66 | RD13 — General purpose I/O |
| Chân 67 | RD14 — General purpose I/O |
| Chân 68 | RD15 — General purpose I/O |
| Chân 69 | VSS — Ground |
| Chân 70 | RE0 — General purpose I/O / PMD0 |
| Chân 71 | RE1 — General purpose I/O / PMD1 |
| Chân 72 | RE2 — General purpose I/O / PMD2 |
| Chân 73 | RE3 — General purpose I/O / PMD3 |
| Chân 74 | RE4 — General purpose I/O / PMD4 |
| Chân 75 | RE5 — General purpose I/O / PMD5 |
| Chân 76 | RE6 — General purpose I/O / PMD6 |
| Chân 77 | RE7 — General purpose I/O / PMD7 |
| Chân 78 | VSS — Ground |
| Chân 79 | RF0 — General purpose I/O / PMD8 |
| Chân 80 | RF1 — General purpose I/O / PMD9 |
| Chân 81 | RF2 — General purpose I/O / PMD10 |
| Chân 82 | RF3 — General purpose I/O / PMD11 |
| Chân 83 | RF4 — General purpose I/O / PMD12 |
| Chân 84 | RF5 — General purpose I/O / PMD13 |
| Chân 85 | RF6 — General purpose I/O / PMD14 / USB ID |
| Chân 86 | RF7 — General purpose I/O / PMD15 |
| Chân 87 | VSS — Ground |
| Chân 88 | VDD — Supply voltage 2.3V-3.6V |
| Chân 89 | RG0 — General purpose I/O |
| Chân 90 | RG1 — General purpose I/O |
| Chân 91 | RG2 — General purpose I/O |
| Chân 92 | RG3 — General purpose I/O |
| Chân 93 | RG6 — General purpose I/O / SCLK2 |
| Chân 94 | RG7 — General purpose I/O / SDA2 |
| Chân 95 | RG8 — General purpose I/O / SCLK1 |
| Chân 96 | RG9 — General purpose I/O / SDA1 |
| Chân 97 | VDD — Supply voltage 2.3V-3.6V |
| Chân 98 | VSS — Ground |
| Chân 99 | D+ — USB D+ differential data line |
| Chân 100 | D- — USB D- differential data line |
Ứng dụng tiêu biểu
PIC32MX460F256LT-80V/PT phù hợp cho 6 Áp dụngs: USB HID / CDC / MSD Peripherals, Embedded QVGA Graphical HMI, Industrial Sensor Data Acquisition, IoT Gateway / TCP-IP Edge Node, Audio Class USB Peripherals, Motor Control / PWM Driver Hub.
USB HID / CDC / MSD Peripherals
The PIC32MX460F256LT-80V/PT integrates a USB-OTG full-speed transceiver supporting 12 Mbps, which matches USB 1.1 low/full-speed HID, CDC (virtual COM), and MSD (mass storage) class profiles without external components. Its 80 MHz MIPS M4K core executes the Microchip USB framework with sub-millisecond interrupt latency, allowing responsive HID devices at 1000 Hz polling rates. The 256 KB Flash fits full USB stacks including MSD FAT16/32 handlers, while 32 KB RAM holds endpoint buffers plus application state. PPS (Peripheral Pin Select) maps the USB D+/D- to dedicated pins and frees the rest of the 85 I/O for buttons, LEDs, or sensors.
Được đề xuất
Embedded QVGA Graphical HMI
Driving a 320x240 QVGA TFT through the PIC32MX460F256LT-80V/PT's PMP (Parallel Master Port) and 85-pin TQFP pin count gives designers 33+ data lines plus control signals for 16-bit parallel LCD interfaces. The 80 MHz core pumps pixels at typical 5 MHz PMP throughput, sufficient for static menus and slow animations without external graphics RAM. 256 KB Flash stores frame buffers and UI assets, and the 10-bit ADC handles touch-screen resistive sensing. The 100-pin TQFP pinout allows easy fan-out to display, backlight driver, and capacitive touch controller I2C bus.
Được đề xuất
Industrial Sensor Data Acquisition
The 16-channel 10-bit ADC at 1 Msps on the PIC32MX460F256LT-80V/PT suits industrial sensor multiplexing for thermocouples, RTDs, and 4-20 mA loops through external signal conditioning. At 80 MHz DSP performance, on-chip FFTs filter out 50/60 Hz line noise with sufficient MIPS headroom. The extended -40C to +105C temperature range (V-grade silicon) supports factory-floor deployment, and the 100-pin TQFP gives access to 85 I/O for relay drivers, isolators, and RS-485 transceivers. The 32 KB RAM buffers sensor bursts before TCP/IP upload via Ethernet expansion daughter board.
Được đề xuất
IoT Gateway / TCP-IP Edge Node
The PIC32MX460F256LT-80V/PT running Microchip's TCP/IP stack (TCP, UDP, HTTP, SNTP, MQTT) achieves wired Ethernet connectivity via SPI-attached ENC28J60 or external PHY. The 32 KB SRAM holds TCP socket buffers plus TLS fragments, and 256 KB Flash stores Wi-Fi configuration and OTA bootloader. The 80 MHz core runs the IwIP stack at 50+ Mbps on SPI-attached Wi-Fi (MRF24WG0MA) while leaving MIPS for sensor preprocessing. 85 I/O provides expansion for UART-attached cellular modems, GPS modules, or LoRa transceivers, ideal for remote monitoring stations.
Được đề xuất
Audio Class USB Peripherals
The PIC32MX460F256LT-80V/PT's USB-OTG full-speed supports USB Audio Class 1.0 at 12 Mbps, sufficient for 48 kHz / 16-bit stereo audio streaming. Its 80 MHz MIPS M4K executes the audio class driver plus DSP filtering with DMA-driven endpoint transfers that minimize CPU load. The 256 KB Flash stores audio class descriptors, sample-rate converters, and equalizer coefficients. 32 KB SRAM buffers USB audio packets with low latency. The 100-pin TQFP provides PWM outputs for LED VU meters and I2S lines to external CODECs like the AK4552 or SSM2603.
Được đề xuất
Motor Control / PWM Driver Hub
Five 16-bit timers with 5 output-compare channels on the PIC32MX460F256LT-80V/PT generate complementary PWM pairs with hardware dead-band insertion for 3-phase brushless DC (BLDC) motor control. The 80 MHz core runs vector FOC (Field-Oriented Control) loops at typical 20 kHz with sub-microsecond ADC sampling for current sensing. The 100-pin TQFP gives 6 PWM pairs plus 4 dedicated fault inputs for overcurrent and hall-sensor feedback. 256 KB Flash stores full FOC plus encoder routines, and 32 KB RAM holds phase-angle and PID state variables.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX460F256LT-80V/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 | PIC32MX460F256L-80V/PT | PIC32MX460F256LT-80I/PT | PIC32MX450F256L-V/PF | PIC32MX360F256L-80V/PT | PIC32MX460F512LT-80V/PT |
|---|---|---|---|---|---|---|
| Package | 100-pin TQFP (PT), 12x12 mm | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB (same) | 256 KB (same) | 256 KB (same) | 256 KB (same) | 512 KB (+100%) |
| RAM | 32 KB | 32 KB (same) | 32 KB (same) | 32 KB (same) | 32 KB (same) | 64 KB (+100%) |
| Max Clock Speed | 80 MHz | 80 MHz (same) | 80 MHz (same) | 80 MHz (same) | 80 MHz (same) | 80 MHz (same) |
| USB | USB-OTG Full-Speed | USB-OTG Full-Speed (same) | USB-OTG Full-Speed (same) | USB-OTG Full-Speed (same) | No USB | USB-OTG Full-Speed (same) |
| Temperature Grade | V (2.0V-3.6V extended) | V (same) | I (industrial) | V (same) | V (same) | V (same) |
| I/O Pins | 85 | 85 (same) | 85 (same) | 85 (same) | 85 (same) | 85 (same) |
| Operating Voltage | 2.3 V to 3.6 V | 2.3-3.6 V (same) | 2.3-3.6 V (same) | 2.3-3.6 V (same) | 2.3-3.6 V (same) | 2.3-3.6 V (same) |
Bảo phân biệt quan trọng
- USB-OTG Full-Speed integrated on-chip (vsPIC32MX360F256L-80V/PT)
- Tape-and-reel factory packaging (vsPIC32MX460F256L-80V/PT)
- Extended V operating voltage (2.0-3.6 V) (vsPIC32MX460F256LT-80I/PT)
Ghi chú thiết kế
Decouple each VDD/VSS pair on the 100-pin TQFP with a 100 nF ceramic cap placed within 3 mm of the pin pair. Per Microchip PIC32MX3XX/4XX family datasheet (61143H), bulk decoupling of 10 uF + 100 nF is required at the main VDD rail. The ADC reference (AVDD) requires a dedicated LDO or ferrite-bead filter to avoid coupling switching noise into the 10-bit ADC. Estimated: at 80 MHz with full USB-OTG active, peak IDD reaches approximately 60-75 mA - verify regulator headroom.
The 100-pin TQFP (PT) 12x12 mm has theta_JA of approximately 39 C/W on a standard 4-layer JEDEC test board. Estimated: at 80 MHz full peripheral activity the part dissipates ~200 mW, giving a junction-to-ambient rise of ~8 C. No heatsink is needed, but adequate copper pour (at least 1 oz copper) on power pins improves dissipation. Industrial temperature variants (-40 C to +105 C) are available with the I suffix.
Route the USB D+ and D- differential pair on the PIC32MX460F256LT-80V/PT with 90-ohm differential impedance, length-matched within 150 mil. The crystal traces (if external) must be short and guarded by ground. Keep analog inputs (AN0-AN15) away from switching regulator or PWM switching edges. The 100-TQFP PT package uses 0.5 mm pitch - ensure the PCB has proper fine-pitch assembly capability.
Do not confuse the PIC32MX460F256LT-80V/PT (100-TQFP) with the PIC32MX460F256LT-80V/BG (121-BGA) - they share the same die but cannot be interchanged without PCB redesign. The 'T' suffix indicates tape-and-reel; the non-T tray variant is identical silicon. The 'V' suffix indicates 2.0-3.6 V operation; do not substitute with 'I' supersession (industrial temp) or 'F' (standard temp) without reviewing your thermal envelope.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is a general-purpose MCU. For automotive designs use PIC32MK or dsPIC33 AEC-Q100 qualified variants.
