PIC32MX450F256L-V/PT - 80MHz 32-bit MCU 256KB Flash 100-TQFP
N.º da peça: PIC32MX450F256L-V/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.42 | $7,42 |
| 10 | $6.88 | $68,80 |
| 100 | $5.96 | $596,00 |
| 500 | $5.31 | $2.655,00 |
| 1.000 | $4.72 | $4.720,00 |
PIC32MX450F256L-V/PT Visão geral
A microcontroller (MCU) is a single-chip computer containing a processor core, program and data memory, and integrated peripherals. The PIC32 family sits at the upper end of Microchip's 32-bit MIPS-based MCU portfolio, providing 150 DMIPS performance, deterministic interrupt handling, and rich connectivity suitable for embedded control, USB host/device, and human-machine interface (HMI) applications. Within the broader taxonomy, PIC32MX parts occupy the PIC32 > 32-bit MCU > microcontroller > semiconductor hierarchy.
Key features include two I2S/SPI modules for codec and serial audio, a USB 2.0 full-speed OTG controller, Peripheral Pin Select (PPS) for flexible signal routing, a Parallel Master Port (PMP) for graphics interfacing, and a Charge Time Measurement Unit (CTMU) for capacitive touch sensing. The 2.3V to 3.6V operating range simplifies integration into 3.3V systems, and 256KB of Flash plus 64KB of SRAM comfortably support RTOS-based designs and protocol stacks such as USB, TCP/IP, and audio processing.
The PIC32MX450F256L-V/PT uses a 5-stage pipeline MIPS32 M4K core with hardware multiply/divide and shadow register sets for fast interrupt response. The 100-pin TQFP footprint exposes ample I/O for parallel buses, USB, and analog inputs, while on-chip peripherals reduce BOM cost. Compared to older PIC24/dsPIC devices, the 32-bit core and large memory open up graphical user interfaces, audio playback, and connectivity stacks.
Typical applications include USB audio devices, industrial HMI with TFT displays, capacitive touch keypads, and low-cost embedded web servers. Design considerations should account for the 80MHz operating frequency (versus the 120MHz marketing max), the industrial temperature range, and the need for proper decoupling near the MCU's power pins.
Alternativas drop-in para PIC32MX450F256L-V/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC32MX450F256L-V/PT (mesmo formato e footprint) — diferindo em Package, Core Architecture, DMA Channels, ADC, Operating Temperature.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC32MX450F256L-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC32MX450F256LT-V/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC32MX450F256H-V/PT
✅ Drop-In✓ Em estoque
$4.78 / unidade
Ver ficha técnica →PIC32MX350F256L-V/PT
✅ Drop-In✓ Em estoque
$5.45 / unidade
Ver ficha técnica →PIC32MX370F512L-V/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC32MX460F512L-80V/PT
✅ Drop-In✓ Em estoque
$9.8 / unidade
Ver ficha técnica →PIC32MX450F256L-V/PT Classificações máximas e características elétricas
| Core Architecture | MIPS32 M4K |
| Largura do barramento de dados | 32 bit |
| Frequência máxima de clock | 80 MHz (up to 120 MHz max) |
| Program Memory Size | 256 KB Flash |
| RAM Size | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Faixa de temperatura de operação | -40 C to +105 C (V suffix) |
| Encapsulamento | 100-pin TQFP (PT), 12x12 mm |
| Tipo de montagem | Surface Mount |
| USB | USB 2.0 full-speed OTG controller |
| SPI/I2S Modules | 2 |
| Parallel Master Port (PMP) | Yes |
| CTMU (Capacitive Touch) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Status RoHS | Compliant |
Configuração de pinos do PIC32MX450F256L-V/PT
| Pino 1 | RG15 — General purpose I/O |
| Pino 2 | VDD — Digital supply voltage |
| Pino 3 | RA0 — Analog input / GPIO |
| Pino 4 | RA1 — Analog input / GPIO |
| Pino 5 | RA2 — Analog input / GPIO |
| Pino 6 | RA3 — Analog input / GPIO |
| Pino 7 | RA4 — Analog input / GPIO |
| Pino 8 | RA5 — Analog input / GPIO |
| Pino 9 | RB0 — GPIO |
| Pino 10 | RB1 — GPIO |
| Pino 11 | RB2 — GPIO |
| Pino 12 | RB3 — GPIO |
| Pino 13 | VSS — Ground |
| Pino 14 | RB4 — GPIO |
| Pino 15 | RB5 — GPIO |
| Pino 16 | RB6 — GPIO / ICD PGC |
| Pino 17 | RB7 — GPIO / ICD PGD |
| Pino 18 | RB8 — GPIO |
| Pino 19 | RB9 — GPIO |
| Pino 20 | RB10 — GPIO |
| Pino 21 | RB11 — GPIO |
| Pino 22 | VSS — Ground |
| Pino 23 | RB12 — GPIO |
| Pino 24 | RB13 — GPIO |
| Pino 25 | RB14 — GPIO |
| Pino 26 | RB15 — GPIO |
| Pino 27 | RC0 — GPIO |
| Pino 28 | RC1 — GPIO |
| Pino 29 | RC2 — GPIO |
| Pino 30 | VSS — Ground |
| Pino 31 | RC3 — GPIO |
| Pino 32 | RC4 — GPIO |
| Pino 33 | RC5 — GPIO |
| Pino 34 | RC6 — GPIO |
| Pino 35 | RC7 — GPIO |
| Pino 36 | RC8 — GPIO |
| Pino 37 | RC9 — GPIO |
| Pino 38 | VDD — Digital supply voltage |
| Pino 39 | RC10 — GPIO |
| Pino 40 | RC11 — GPIO |
| Pino 41 | RC12 — GPIO |
| Pino 42 | RC13 — GPIO |
| Pino 43 | RC14 — GPIO |
| Pino 44 | RC15 — GPIO |
| Pino 45 | VSS — Ground |
| Pino 46 | RD0 — GPIO / PMP |
| Pino 47 | RD1 — GPIO / PMP |
| Pino 48 | RD2 — GPIO / PMP |
| Pino 49 | RD3 — GPIO / PMP |
| Pino 50 | RD4 — GPIO / PMP |
| Pino 51 | RD5 — GPIO / PMP |
| Pino 52 | RD6 — GPIO / PMP |
| Pino 53 | RD7 — GPIO / PMP |
| Pino 54 | VSS — Ground |
| Pino 55 | RD8 — GPIO / PMP |
| Pino 56 | RD9 — GPIO / PMP |
| Pino 57 | RD10 — GPIO / PMP |
| Pino 58 | RD11 — GPIO / PMP |
| Pino 59 | RD12 — GPIO / PMP |
| Pino 60 | RD13 — GPIO / PMP |
| Pino 61 | RD14 — GPIO / PMP |
| Pino 62 | RD15 — GPIO / PMP |
| Pino 63 | VSS — Ground |
| Pino 64 | RE0 — GPIO / PMP |
| Pino 65 | RE1 — GPIO / PMP |
| Pino 66 | RE2 — GPIO / PMP |
| Pino 67 | RE3 — GPIO / PMP |
| Pino 68 | RE4 — GPIO / PMP |
| Pino 69 | RE5 — GPIO / PMP |
| Pino 70 | RE6 — GPIO / PMP |
| Pino 71 | RE7 — GPIO / PMP |
| Pino 72 | VDD — Digital supply voltage |
| Pino 73 | RF0 — GPIO |
| Pino 74 | RF1 — GPIO |
| Pino 75 | RF2 — GPIO |
| Pino 76 | RF3 — GPIO |
| Pino 77 | RF4 — GPIO |
| Pino 78 | RF5 — GPIO |
| Pino 79 | VSS — Ground |
| Pino 80 | RF6 — GPIO |
| Pino 81 | RF7 — GPIO |
| Pino 82 | RF8 — GPIO |
| Pino 83 | RF9 — GPIO |
| Pino 84 | RF10 — GPIO |
| Pino 85 | RF11 — GPIO |
| Pino 86 | RF12 — GPIO |
| Pino 87 | RF13 — GPIO |
| Pino 88 | VSS — Ground |
| Pino 89 | RG0 — GPIO |
| Pino 90 | RG1 — GPIO |
| Pino 91 | RG2 — GPIO / D+ (USB) |
| Pino 92 | RG3 — GPIO / D- (USB) |
| Pino 93 | RG6 — GPIO |
| Pino 94 | RG7 — GPIO |
| Pino 95 | RG8 — GPIO |
| Pino 96 | RG9 — GPIO |
| Pino 97 | VSS — Ground |
| Pino 98 | VDD — Digital supply voltage |
| Pino 99 | RG12 — GPIO |
| Pino 100 | RG14 — GPIO |
Aplicações típicas
PIC32MX450F256L-V/PT é adequado para 6 aplicaçãos: USB Audio Device Interface, Human-Machine Interface (HMI) with TFT Display, Industrial Control with Capacitive Touch, Embedded Connectivity (TCP/IP, USB, CAN), Low-Cost Data Logger, Point-of-Sale (POS) Terminal Peripheral.
USB Audio Device Interface
The PIC32MX450F256L-V/PT is an excellent fit for USB audio peripherals such as USB speakers, headsets, and digital audio interfaces. Its integrated USB 2.0 full-speed OTG controller handles USB audio class 1.0 device enumeration without an external PHY, while the two I2S/SPI modules stream stereo audio data to external DACs or codecs. With 256KB Flash and 64KB RAM, the MCU comfortably runs the Microchip Harmony USB audio stack, supports up to 24-bit/48kHz sample rates, and leaves headroom for additional DSP effects such as equalization or sample-rate conversion. The 80MHz M4K core provides more than enough MIPS for low-latency audio buffering and USB isochronous transfers. Designers should pair the MCU with a low-jitter 48MHz crystal reference to meet USB timing specifications.
Recomendado
Human-Machine Interface (HMI) with TFT Display
For HMI designs with small TFT or OLED displays, the PIC32MX450F256L-V/PT's Parallel Master Port (PMP) drives 8/16-bit parallel LCD interfaces at speeds sufficient for QVGA/WQVGA panels. The PIC32MX3/4 family's Peripheral Pin Select (PPS) remapping capability allows designers to assign PMP data lines to nearly any I/O, simplifying PCB routing around display connectors. With 256KB Flash, the MCU stores graphics assets, fonts, and Microchip's MPLAB Harmony Graphics Suite middleware, while 64KB RAM provides frame buffers for small displays. The CTMU peripheral enables capacitive touch buttons and sliders for integrated touch UI, reducing BOM cost by eliminating external touch controllers.
Recomendado
Industrial Control with Capacitive Touch
The PIC32MX450F256L-V/PT integrates Microchip's Charge Time Measurement Unit (CTMU), enabling robust capacitive touch sensing for industrial control panels, appliance interfaces, and rugged keypads. The -V/PT suffix extends the operating range to -40C to +105C, suitable for factory-floor equipment and outdoor installations. The 32-bit MIPS core executes PID control loops and Modbus RTU/TCP communication stacks simultaneously, while 256KB Flash accommodates protocol libraries plus custom application code. Industrial designers can use the on-chip 10-bit ADC for sensor inputs and the PWM/OC modules for motor or actuator control, all from a single chip.
Recomendado
Embedded Connectivity (TCP/IP, USB, CAN)
For embedded web servers, USB peripherals, or CAN-connected nodes, the PIC32MX450F256L-V/PT supplies ample peripherals and memory for protocol stacks. The integrated USB OTG controller enables device/host/OTG roles for dongles, and Microchip's free TCP/IP stack (with or without RTOS) fits comfortably in 256KB Flash. Designers can add CAN via external MCP2515 controllers or use the ECAN module on pin-compatible PIC32MX variants. The 100-pin TQFP exposes sufficient I/O for Ethernet MAC+PHY interfacing (e.g., with ENC28J60 or LAN8720) along with UART, SPI, and I2C channels for sensor and memory expansion.
Recomendado
Low-Cost Data Logger
The PIC32MX450F256L-V/PT serves as a controller core for portable data loggers used in environmental monitoring, asset tracking, or test equipment. With 256KB Flash for application code and 64KB RAM for buffering, the MCU can sample multiple sensor channels via its 10-bit ADC and store readings to external SD cards or serial Flash via SPI. The USB OTG controller enables direct file transfer to a host PC without specialized drivers, while the -V/PT temperature grade supports field deployment. Battery-backed RTC and low-power sleep modes extend operating life in remote, battery-powered installations.
Recomendado
Point-of-Sale (POS) Terminal Peripheral
In POS terminals and retail peripherals, the PIC32MX450F256L-V/PT provides USB host/device connectivity for barcode scanners, receipt printers, and customer displays. The two I2S/SPI modules support external audio prompts or beep generators, while the PMP can drive small status displays. With 256KB Flash and 64KB RAM, the MCU handles payment flow control, encryption acceleration libraries, and multiple USB endpoints simultaneously. The 100-pin TQFP and 2.3V-3.6V range simplify integration into existing 3.3V POS mainboards, and the -40C to +105C rating supports retail environments with variable thermal conditions.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC32MX450F256L-V/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC32MX450F256L-I/PT | PIC32MX450F256LT-V/PT | PIC32MX450F256H-V/PT | PIC32MX350F256L-V/PT | PIC32MX370F512L-V/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PT) 12x12 mm | TQFP-100 (PT) 12x12 mm - same | TQFP-100 (PT) 12x12 mm - same | TQFP-100 (PT) 12x12 mm - same | TQFP-100 (PT) 12x12 mm - same | TQFP-100 (PT) 12x12 mm - same |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Max Frequency | 80 MHz (120 MHz family max) | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 512 KB |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 128 KB |
| Operating Temperature | -40 C to +105 C (V) | -40 C to +85 C (I) | -40 C to +105 C (V) | -40 C to +105 C (V) | -40 C to +105 C (V) | -40 C to +105 C (V) |
| USB | USB 2.0 full-speed OTG | USB 2.0 full-speed OTG | USB 2.0 full-speed OTG | USB 2.0 full-speed OTG | USB 2.0 full-speed OTG | USB 2.0 full-speed OTG |
Principais diferenciais
- Industrial -40C to +105C temperature grade (vs PIC32MX450F256L-I/PT)
- PIC32MX450 family with CTMU and PMP (vs PIC32MX350F256L-V/PT)
- 256KB Flash and 64KB RAM balance (vs PIC32MX370F512L-V/PT)
- 100-pin TQFP exposes maximum I/O (vs PIC32MX450F256H-V/PT)
Notas de projeto
The PIC32MX450F256L-V/PT requires a stable 3.3V supply within 2.3V to 3.6V. Place 100nF decoupling capacitors close to every VDD pin (the device has multiple VDD pins on the 100-pin TQFP) and a bulk 10uF tantalum or ceramic capacitor on the main 3.3V rail. According to Microchip datasheet 61143H, the MCU has multiple VSS pins that should all be connected to a low-impedance ground plane for EMI and thermal performance. A power-on reset (POR) is integrated internally; no external reset IC is required.
Route the 48MHz USB reference clock trace as short as possible with a guard ground on both sides. The USB D+ and D- lines (RG2 and RG3) require 90-ohm differential impedance matching and should be routed parallel with no stubs. For PMP-driven TFT displays, group the parallel data lines (RD0-RD15) and control lines (RE0-RE7) together to minimize skew, and reserve a contiguous GPIO region via Peripheral Pin Select (PPS) to simplify firmware configuration.
Do not exceed 80MHz system clock on the -V/PT speed grade - higher frequencies require the -120/PT variant. Ensure the JTAG/ICD pins RB6 (PGC) and RB7 (PGD) are not loaded by external circuitry during debug; if used as GPIO, provide a way to disable the debugger. The CTMU peripheral requires careful PCB layout for capacitive touch - guard traces around touch electrodes should be tied to ground to suppress noise.
Estimated: At 80MHz with full peripheral activity, core current consumption is approximately 60-80mA from the 3.3V rail. The 100-pin TQFP package has a theta_JA of approximately 50 C/W (per Microchip package drawing), so full-power dissipation results in a 4-5 C rise above ambient - well within the -40C to +105C operating range. For USB applications with high bus activity, expect 20-30% higher current draw due to transceiver toggling.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. Lead-free and halogen-free per Microchip packaging specifications. AEC-Q100 not applicable - this is a general-purpose MCU not marketed as automotive grade.
