PIC32MX460F256LT-80V/PT - 80MHz 32-bit MCU 256KB Flash USB-OTG | Microchip
MPN: PIC32MX460F256LT-80V/PT ✓ نشطPIC32MX460F256LT-80V/PT نظرة عامة
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.
بدائل مباشرة لـ PIC32MX460F256LT-80V/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC32MX460F256LT-80V/PT (نفس عامل الشكل والبصمة) — يختلف في ADC, Core Architecture, Package, Timers, MSL Level.
PIC32MX460F256L-80V/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC32MX460F256LT-80I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC32MX450F256L-V/PF
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC32MX360F256L-80V/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC32MX460F512LT-80V/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC32MX440F256HT-80I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC32MX340F128H-80V/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC32MX460F256LT-80V/PT الحدود القصوى والخصائص الكهربائية
| 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 |
| العلبة | 100-pin TQFP (PT), 12x12 mm |
| نوع التركيب | Surface Mount |
| مستوى MSL | 3 |
| Lead-Free / RoHS | Yes / Lead-free (finish type per datasheet) |
تكوين أطراف PIC32MX460F256LT-80V/PT
| دبوس 1 | RG15 — General purpose I/O / PWM |
| دبوس 2 | RG14 — General purpose I/O |
| دبوس 3 | VDD — Supply voltage 2.3V-3.6V |
| دبوس 4 | VSS — Ground |
| دبوس 5 | RA0 — General purpose I/O / analog input AN0 |
| دبوس 6 | RA1 — General purpose I/O / analog input AN1 |
| دبوس 7 | RA2 — General purpose I/O / analog input AN2 |
| دبوس 8 | RA3 — General purpose I/O / analog input AN3 |
| دبوس 9 | RA4 — General purpose I/O / analog input AN4 |
| دبوس 10 | RA5 — General purpose I/O / analog input AN5 |
| دبوس 11 | VSS — Ground |
| دبوس 12 | RA6 — General purpose I/O / analog input AN6 |
| دبوس 13 | RA7 — General purpose I/O / analog input AN7 |
| دبوس 14 | RB0 — General purpose I/O / PGED1 programming data |
| دبوس 15 | RB1 — General purpose I/O / PGEC1 programming clock |
| دبوس 16 | RB2 — General purpose I/O / analog input AN8 |
| دبوس 17 | RB3 — General purpose I/O / analog input AN9 |
| دبوس 18 | RB4 — General purpose I/O / analog input AN10 |
| دبوس 19 | RB5 — General purpose I/O / analog input AN11 |
| دبوس 20 | RB6 — General purpose I/O / PGED2 |
| دبوس 21 | RB7 — General purpose I/O / PGEC2 |
| دبوس 22 | RB8 — General purpose I/O / analog input AN12 |
| دبوس 23 | RB9 — General purpose I/O / analog input AN13 |
| دبوس 24 | RB10 — General purpose I/O / analog input AN14 |
| دبوس 25 | RB11 — General purpose I/O / analog input AN15 |
| دبوس 26 | VSS — Ground |
| دبوس 27 | VDD — Supply voltage 2.3V-3.6V |
| دبوس 28 | RB12 — General purpose I/O |
| دبوس 29 | RB13 — General purpose I/O |
| دبوس 30 | RB14 — General purpose I/O |
| دبوس 31 | RB15 — General purpose I/O / OCFB |
| دبوس 32 | RC0 — General purpose I/O |
| دبوس 33 | RC1 — General purpose I/O |
| دبوس 34 | RC2 — General purpose I/O |
| دبوس 35 | RC3 — General purpose I/O |
| دبوس 36 | RC4 — General purpose I/O |
| دبوس 37 | RC5 — General purpose I/O |
| دبوس 38 | RC6 — General purpose I/O |
| دبوس 39 | RC7 — General purpose I/O |
| دبوس 40 | RC8 — General purpose I/O |
| دبوس 41 | RC9 — General purpose I/O |
| دبوس 42 | VSS — Ground |
| دبوس 43 | VDD — Supply voltage 2.3V-3.6V |
| دبوس 44 | RC10 — General purpose I/O |
| دبوس 45 | RC11 — General purpose I/O |
| دبوس 46 | RC12 — General purpose I/O |
| دبوس 47 | RC13 — General purpose I/O |
| دبوس 48 | RC14 — General purpose I/O |
| دبوس 49 | RC15 — General purpose I/O |
| دبوس 50 | VSS — Ground |
| دبوس 51 | RD0 — General purpose I/O |
| دبوس 52 | RD1 — General purpose I/O |
| دبوس 53 | RD2 — General purpose I/O |
| دبوس 54 | RD3 — General purpose I/O |
| دبوس 55 | RD4 — General purpose I/O |
| دبوس 56 | RD5 — General purpose I/O |
| دبوس 57 | RD6 — General purpose I/O |
| دبوس 58 | RD7 — General purpose I/O |
| دبوس 59 | RD8 — General purpose I/O |
| دبوس 60 | RD9 — General purpose I/O |
| دبوس 61 | RD10 — General purpose I/O |
| دبوس 62 | RD11 — General purpose I/O |
| دبوس 63 | VSS — Ground |
| دبوس 64 | VDD — Supply voltage 2.3V-3.6V |
| دبوس 65 | RD12 — General purpose I/O |
| دبوس 66 | RD13 — General purpose I/O |
| دبوس 67 | RD14 — General purpose I/O |
| دبوس 68 | RD15 — General purpose I/O |
| دبوس 69 | VSS — Ground |
| دبوس 70 | RE0 — General purpose I/O / PMD0 |
| دبوس 71 | RE1 — General purpose I/O / PMD1 |
| دبوس 72 | RE2 — General purpose I/O / PMD2 |
| دبوس 73 | RE3 — General purpose I/O / PMD3 |
| دبوس 74 | RE4 — General purpose I/O / PMD4 |
| دبوس 75 | RE5 — General purpose I/O / PMD5 |
| دبوس 76 | RE6 — General purpose I/O / PMD6 |
| دبوس 77 | RE7 — General purpose I/O / PMD7 |
| دبوس 78 | VSS — Ground |
| دبوس 79 | RF0 — General purpose I/O / PMD8 |
| دبوس 80 | RF1 — General purpose I/O / PMD9 |
| دبوس 81 | RF2 — General purpose I/O / PMD10 |
| دبوس 82 | RF3 — General purpose I/O / PMD11 |
| دبوس 83 | RF4 — General purpose I/O / PMD12 |
| دبوس 84 | RF5 — General purpose I/O / PMD13 |
| دبوس 85 | RF6 — General purpose I/O / PMD14 / USB ID |
| دبوس 86 | RF7 — General purpose I/O / PMD15 |
| دبوس 87 | VSS — Ground |
| دبوس 88 | VDD — Supply voltage 2.3V-3.6V |
| دبوس 89 | RG0 — General purpose I/O |
| دبوس 90 | RG1 — General purpose I/O |
| دبوس 91 | RG2 — General purpose I/O |
| دبوس 92 | RG3 — General purpose I/O |
| دبوس 93 | RG6 — General purpose I/O / SCLK2 |
| دبوس 94 | RG7 — General purpose I/O / SDA2 |
| دبوس 95 | RG8 — General purpose I/O / SCLK1 |
| دبوس 96 | RG9 — General purpose I/O / SDA1 |
| دبوس 97 | VDD — Supply voltage 2.3V-3.6V |
| دبوس 98 | VSS — Ground |
| دبوس 99 | D+ — USB D+ differential data line |
| دبوس 100 | D- — USB D- differential data line |
التطبيقات النموذجية
PIC32MX460F256LT-80V/PT مناسب لـ 6 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC32MX460F256LT-80V/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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) |
أبرز الفروقات
- USB-OTG Full-Speed integrated on-chip (مقابلPIC32MX360F256L-80V/PT)
- Tape-and-reel factory packaging (مقابلPIC32MX460F256L-80V/PT)
- Extended V operating voltage (2.0-3.6 V) (مقابلPIC32MX460F256LT-80I/PT)
ملاحظات التصميم
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.
معلومات الامتثال
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.
