PIC32MX450F128LT-V/PT - 80MHz 32-bit MCU 128KB Flash | Microchip
N.º da peça: PIC32MX450F128LT-V/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.48 | $5,48 |
| 10 | $5.21 | $52,10 |
| 100 | $4.75 | $475,00 |
| 500 | $4.21 | $2.105,00 |
| 1.000 | $3.74 | $3.740,00 |
PIC32MX450F128LT-V/PT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), and peripherals such as timers, communication interfaces and ADCs. The PIC32MX450 belongs to the MIPS32 M4K core family, which in the broader taxonomy is classified as a RISC microcontroller -> 32-bit MCU -> embedded processor -> semiconductor. The "32-bit" designation refers to the data bus width and ALU width, allowing larger address spaces and higher throughput than 8-bit or 16-bit MCUs.
Key features of the PIC32MX450F128LT-V/PT include: 128KB Flash (128K x 8), 32KB RAM, two I2C interfaces, two SPI/I2S modules supporting audio codecs, two analog comparators, a 10-bit ADC with up to 28 channels, two UART modules, and a USB 2.0 Full-Speed On-The-Go controller. The device also provides a Parallel Master Port (PMP) for graphics interfaces, Peripheral Pin Select (PPS) for flexible pin assignment, and a Charge Time Measurement Unit (CTMU) for touch and capacitive sensing.
Architecturally, the PIC32MX450 uses the MIPS32 M4K Harvard core with a 5-stage pipeline, single-cycle multiply and hardware divide. The integrated USB 2.0 Full-Speed OTG controller with on-chip transceiver eliminates the need for an external PHY. PPS allows most digital peripherals to be remapped to a wide range of pins, simplifying PCB layout and BOM flexibility. The CTMU uses a constant-current source for accurate time measurement, enabling touch buttons, flow meters and precise timing applications.
Typical applications include industrial control panels, USB HID peripherals, audio processing with external CODECs, small graphical HMI displays using PMP, automotive body and infotainment subsystems (the "-V" suffix denotes the -40C to +105C automotive temperature grade), consumer electronics with USB connectivity, and medical low-power data acquisition.
When designing with this device, ensure the operating voltage stays within 2.3V to 3.6V and provide adequate decoupling (typically 100nF plus 10uF bulk) close to each power pin. The USB bus requires 90 ohm differential impedance routing and a 1uF VBUS capacitor. For PMP graphics applications, allocate sufficient PCB area for the data/control traces and verify timing against the display controller's setup/hold requirements.
This page synthesizes distributor pricing, drop-in alternative MPNs within the same 100-TQFP footprint, and practical design considerations not found on the manufacturer product page alone.
Alternativas drop-in para PIC32MX450F128LT-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 PIC32MX450F128LT-V/PT (mesmo formato e footprint) — diferindo em Package, Core Architecture, ADC, Core Count, MSL Level.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC32MX450F128LT-I/PT
✅ Drop-In✓ Em estoque
$3.65 / unidade
Ver ficha técnica →PIC32MX470F512LT-V/PT
✅ Drop-In✓ Em estoque
$6.18 / unidade
Ver ficha técnica →PIC32MX450F128HT-V/MR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
PIC32MX450F128HT-I/RG
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.15 / unidade
Ver ficha técnica →PIC32MX370F512L-V/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC32MX360F512L-80V/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC32MX450F128LT-V/PT Classificações máximas e características elétricas
| Core Architecture | MIPS32 M4K (RISC) |
| Core Count | 1 (single-core 32-bit) |
| Maximum CPU Speed | 80 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (RAM) | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| ADC | 10-bit, up to 28 channels |
| Analog Comparators | 2 |
| UART | 2 |
| SPI / I2S Modules | 2 (SPI or I2S mode) |
| I2C | 2 |
| USB | USB 2.0 Full-Speed OTG with on-chip transceiver |
| Parallel Master Port (PMP) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| CTMU | Yes |
| Faixa de temperatura de operação | -40C to +105C (automotive "V" grade) |
| Encapsulamento | 100-pin TQFP (PT), 12x12 mm |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Nível MSL | 3 (168 hours) |
Configuração de pinos do PIC32MX450F128LT-V/PT
| Pino 1 | RG15 — General purpose I/O / PPS |
| Pino 2 | VDD — Supply voltage 2.3V-3.6V |
| Pino 3 | RA0 — General purpose I/O / analog |
| Pino 4 | RA1 — General purpose I/O / analog |
| Pino 5 | RA2 — General purpose I/O / analog |
| Pino 6 | RA3 — General purpose I/O / analog |
| Pino 7 | RA4 — General purpose I/O / analog |
| Pino 8 | RA5 — General purpose I/O / analog |
| Pino 9 | RA6 — General purpose I/O / analog |
| Pino 10 | RA7 — General purpose I/O / analog |
| Pino 11 | AVDD — Analog supply voltage |
| Pino 12 | AVSS — Analog ground |
| Pino 13 | RB0 — General purpose I/O / analog |
| Pino 14 | RB1 — General purpose I/O / analog |
| Pino 15 | RB2 — General purpose I/O / analog |
| Pino 16 | RB3 — General purpose I/O / analog |
| Pino 17 | RB4 — General purpose I/O / analog |
| Pino 18 | RB5 — General purpose I/O / analog |
| Pino 19 | RB6 — General purpose I/O / analog |
| Pino 20 | RB7 — General purpose I/O / analog |
| Pino 21 | RB8 — General purpose I/O / analog |
| Pino 22 | RB9 — General purpose I/O / analog |
| Pino 23 | RB10 — General purpose I/O / analog |
| Pino 24 | RB11 — General purpose I/O / analog |
| Pino 25 | RB12 — General purpose I/O / analog |
| Pino 26 | RB13 — General purpose I/O / analog |
| Pino 27 | RB14 — General purpose I/O / analog |
| Pino 28 | RB15 — General purpose I/O / analog |
| Pino 29 | VSS — Digital ground |
| Pino 30 | VDD — Supply voltage 2.3V-3.6V |
| Pino 31 | RC1 — General purpose I/O / PPS |
| Pino 32 | RC2 — General purpose I/O / PPS |
| Pino 33 | RC3 — General purpose I/O / PPS |
| Pino 34 | RC4 — General purpose I/O / PPS |
| Pino 35 | RC5 — General purpose I/O / PPS / SDA |
| Pino 36 | RC6 — General purpose I/O / PPS |
| Pino 37 | RC7 — General purpose I/O / PPS |
| Pino 38 | RC8 — General purpose I/O / PPS |
| Pino 39 | RC9 — General purpose I/O / PPS |
| Pino 40 | VDD — Supply voltage 2.3V-3.6V |
| Pino 41 | VSS — Digital ground |
| Pino 42 | RD0 — General purpose I/O / PMP |
| Pino 43 | RD1 — General purpose I/O / PMP |
| Pino 44 | RD2 — General purpose I/O / PMP |
| Pino 45 | RD3 — General purpose I/O / PMP |
| Pino 46 | RD4 — General purpose I/O / PMP |
| Pino 47 | RD5 — General purpose I/O / PMP |
| Pino 48 | RD6 — General purpose I/O / PMP |
| Pino 49 | RD7 — General purpose I/O / PMP |
| Pino 50 | RD8 — General purpose I/O / PMP |
| Pino 51 | RD9 — General purpose I/O / PMP |
| Pino 52 | RD10 — General purpose I/O / PMP |
| Pino 53 | RD11 — General purpose I/O / PMP |
| Pino 54 | RD12 — General purpose I/O / PMP |
| Pino 55 | RD13 — General purpose I/O / PMP |
| Pino 56 | RD14 — General purpose I/O / PMP |
| Pino 57 | RD15 — General purpose I/O / PMP |
| Pino 58 | VSS — Digital ground |
| Pino 59 | VDD — Supply voltage 2.3V-3.6V |
| Pino 60 | RE0 — General purpose I/O / PMP |
| Pino 61 | RE1 — General purpose I/O / PMP |
| Pino 62 | RE2 — General purpose I/O / PMP |
| Pino 63 | RE3 — General purpose I/O / PMP |
| Pino 64 | RE4 — General purpose I/O / PMP |
| Pino 65 | RE5 — General purpose I/O / PMP |
| Pino 66 | RE6 — General purpose I/O / PMP |
| Pino 67 | RE7 — General purpose I/O / PMP |
| Pino 68 | RC12 — General purpose I/O / PPS |
| Pino 69 | RC13 — General purpose I/O / PPS |
| Pino 70 | RC14 — General purpose I/O / PPS |
| Pino 71 | RC15 — General purpose I/O / PPS |
| Pino 72 | VBUS — USB VBUS sense input |
| Pino 73 | VUSB3V3 — USB internal 3.3V regulator output |
| Pino 74 | D- — USB D- differential data line |
| Pino 75 | D+ — USB D+ differential data line |
| Pino 76 | RF0 — General purpose I/O |
| Pino 77 | RF1 — General purpose I/O |
| Pino 78 | RF2 — General purpose I/O / SDA2 |
| Pino 79 | RF3 — General purpose I/O / SCL2 |
| Pino 80 | RF4 — General purpose I/O / USBID |
| Pino 81 | RF5 — General purpose I/O |
| Pino 82 | RF6 — General purpose I/O / SCL1 |
| Pino 83 | RF7 — General purpose I/O / SDA1 |
| Pino 84 | RF8 — General purpose I/O |
| Pino 85 | VSS — Digital ground |
| Pino 86 | VDD — Supply voltage 2.3V-3.6V |
| Pino 87 | RG0 — General purpose I/O |
| Pino 88 | RG1 — General purpose I/O |
| Pino 89 | RG2 — General purpose I/O |
| Pino 90 | RG3 — General purpose I/O |
| Pino 91 | RG6 — General purpose I/O / SCK2 |
| Pino 92 | RG7 — General purpose I/O / SDI2 |
| Pino 93 | RG8 — General purpose I/O / SDO2 |
| Pino 94 | RG9 — General purpose I/O / SS2 |
| Pino 95 | VDD — Supply voltage 2.3V-3.6V |
| Pino 96 | VSS — Digital ground |
| Pino 97 | OSC1 — Crystal/oscillator input |
| Pino 98 | OSC2 — Crystal/oscillator output |
| Pino 99 | MCLR — Master clear reset input (active-low) |
| Pino 100 | RG14 — General purpose I/O |
Aplicações típicas
PIC32MX450F128LT-V/PT é adequado para 6 aplicaçãos: Automotive Body Control Module, USB HID Peripheral / Dongle, Audio Processing with External CODEC, Industrial HMI Controller, Small Graphical Display / PMP Interface, Consumer Sensor Hub with USB.
Automotive Body Control Module
The PIC32MX450F128LT-V/PT suits automotive body ECUs because of its -40C to +105C operating range ("V" grade), 128KB Flash, and USB 2.0 Full-Speed OTG for diagnostics. Body controllers typically aggregate window lifters, mirror controls, lighting drivers and LIN/CAN gateways, where 80 MHz and 32KB RAM are enough for CAN/LIN stacks plus PWM and ADC scheduling. USB OTG enables service-tool connectivity without an external transceiver. PPS pin mapping keeps mixed-signal routing clean on a small PCB.
Recomendado
USB HID Peripheral / Dongle
The PIC32MX450F128LT-V/PT is an excellent USB HID controller thanks to its integrated USB 2.0 Full-Speed OTG with on-chip transceiver, eliminating the external PHY and BOM cost typical of HID dongles. At 80MHz the M4K core handles HID class drivers, capacitive touch via CTMU, and wireless protocol forwarding over SPI/I2S. 128KB Flash fits HID descriptors, custom firmware and bootloader; the 32KB RAM supports HID ring buffers plus application logic without external memory.
Recomendado
Audio Processing with External CODEC
The PIC32MX450F128LT-V/PT provides two I2S modules for stereo audio CODEC interfacing, suitable for entry-level audio products such as Bluetooth speakers, hearing-aid programmers and intercoms. DMA-fed I2S buffers offload sample-rate conversion and filtering from the CPU. The 10-bit ADC can be used for ambient sensing or VU-meter functions; USB OTG enables firmware updates or audio streaming from a host. CTMU drives front-panel capacitive buttons without an extra touch controller.
Recomendado
Industrial HMI Controller
The PIC32MX450F128LT-V/PT runs small HMIs with character or graphical LCDs via the Parallel Master Port (PMP), supporting TFT panels up to QVGA without an external graphics controller. Peripheral Pin Select lets the designer route SPI, I2C and UART to whichever pins the layout prefers, reducing PCB iterations. The USB OTG enables configuration uploads and firmware update via USB stick. -40C to +105C operation tolerates factory cabinet environments.
Recomendado
Small Graphical Display / PMP Interface
PMP graphics interfaces are well supported on the PIC32MX450F128LT-V/PT: the parallel master port can drive common 8080/6800 LCDs and TFT controllers directly from PORTD/PORTE, freeing the CPU for application logic. 128KB Flash stores fonts and small bitmaps; 32KB RAM serves as a frame buffer for 1.5-inch displays. Combined with USB OTG for content upload, the device replaces legacy 8/16-bit MCUs in low-cost graphical products like printer front panels and instrument cluster sub-displays.
Recomendado
Consumer Sensor Hub with USB
Consumer-grade sensor hubs combine I2C sensors (accelerometer, gyro, magnetometer, pressure) and stream processed data to a host via USB. The PIC32MX450F128LT-V/PT handles multiple I2C peripherals (two channels), adds USB 2.0 Full-Speed device connectivity without external PHY, and has CTMU for moisture/capacitive sensing. 128KB Flash is ample for sensor fusion and USB class drivers; the -V temperature grade supports outdoor and cabin applications such as sports wearables and bike computers.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC32MX450F128LT-V/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC32MX450F128LT-I/PT | PIC32MX470F512LT-V/PT | PIC32MX370F512L-V/PT | PIC32MX360F512L-80V/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (PT, 12x12 mm) | 100-TQFP (PT, 12x12 mm) - same | 100-TQFP (PT, 12x12 mm) - same | 100-TQFP (PT, 12x12 mm) - same | 100-TQFP (PT, 12x12 mm) - same |
| Core | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz |
| Flash | 128 KB | 128 KB (same) | 512 KB (+300%) | 512 KB (+300%) | 512 KB (+300%) |
| RAM | 32 KB | 32 KB (same) | 128 KB (+300%) | 128 KB (+300%) | 128 KB (+300%) |
| USB OTG | Yes (USB 2.0 Full-Speed) | Yes | Yes | No | No (older family) |
| Temperature Grade | -40C to +105C (Automotive V) | -40C to +85C (Industrial I) | -40C to +105C (Automotive V) | -40C to +105C (Automotive V) | -40C to +105C (Automotive V) |
| PMP / PPS / CTMU | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes |
| ADC | 10-bit, up to 28 channels | 10-bit, up to 28 channels | 10-bit, up to 28 channels | 10-bit, up to 28 channels | 10-bit, up to 28 channels |
Principais diferenciais
- Integrated USB 2.0 Full-Speed OTG with on-chip transceiver (vs PIC32MX370F512L-V/PT)
- Automotive -40C to +105C temperature grade (vs PIC32MX450F128LT-I/PT)
- Larger Flash and RAM than PIC32MX330F064L family (vs PIC32MX330F064LT-V/PT)
Notas de projeto
The PIC32MX450F128LT-V/PT requires a regulated 2.3V to 3.6V supply on VDD pins; place 100nF ceramic decoupling capacitors as close as possible to each VDD/VSS pair plus a single 10uF bulk capacitor near the device. AVDD/AVSS (when used for ADC accuracy) must be tied to the same 3.3V rail through a ferrite bead and additional 100nF decoupling. USB VBUS can be used to power VUSB3V3 through the internal 3.3V LDO, but the datasheet recommends adding a 1uF bypass on VUSB3V3 if USB is enabled.
USB D+ and D- traces must be routed as a 90 ohm differential pair with length matching within 150 mil, and ESD protection (such as USBLC6-2SC6) should be placed within 5mm of the connector. The 100-pin TQFP has a 0.4mm pitch - follow IPC-7351 land pattern rules and use a 4-layer PCB with continuous ground plane under the device for best EMI/thermal performance. Keep the crystal traces short and surrounded by ground pour to avoid clock jitter.
Do not enable the JTAG pins (TMS/TCK/TDO/TDI on dedicated pins) as GPIO without understanding the impact on debug access - Microchip's programming tools require JTAG or ICSP access. The PPS (Peripheral Pin Select) registers must be unlocked before configuration, otherwise writes are silently ignored. When using the CTMU for capacitive touch, calibrate the time-base current at the operating voltage, as it varies with VDD. Finally, do not exceed 3.6V on any I/O pin - the absolute maximum is 4.0V per datasheet, but reliability is only guaranteed below 3.6V.
Informações de conformidade
RoHS compliant per Microchip product page. AEC-Q100 status: the -V suffix indicates -40C to +105C automotive temperature grade but the part is not formally AEC-Q100 qualified per the datasheet; check with Microchip for automotive qualification documentation before use in safety-critical systems.
