PIC32MX450F128L-V/PT - 32-bit MCU 80MHz 128KB Flash 100-TQFP | Microchip
Артикул: PIC32MX450F128L-V/PT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $6.92 | $6,92 |
| 10 | $6.3 | $63,00 |
| 100 | $5.62 | $562,00 |
| 500 | $5.05 | $2.525,00 |
| 1.000 | $4.5 | $4.500,00 |
| 2.500 | $4.1 | $10.250,00 |
PIC32MX450F128L-V/PT Обзор
A 32-bit microcontroller (MCU) is a single-chip computer whose data bus, registers and ALU are 32 bits wide, providing higher throughput, larger addressable memory and richer peripherals than 8-bit or 16-bit MCUs. PIC32MX4 devices belong to the broader Microchip PIC32 family of MIPS-based microcontrollers, which sit hierarchically within the MCU -> microcontroller -> embedded computing -> semiconductor taxonomy, and they integrate flash, SRAM, analog and digital peripherals in a single chip to enable compact embedded designs.
Key features of the PIC32MX450F128L-V/PT are an operating voltage range of 2.3V to 3.6V, an industrial temperature range of -40C to +105C, dual I2C, dual SPI/I2S, dual UART, a 10-bit ADC with up to 28 channels, an 8-bit Parallel Master Port, a Real-Time Clock and Calendar (RTCC), five 16-bit timers/counters and Peripheral Pin Select that remaps most digital peripherals to almost any I/O pin.
Architecturally, the part uses a 5-stage pipelined MIPS32 M4K core with hardware multiply/divide and a single-cycle 32-bit ALU. The integrated Full-Speed USB 2.0 OTG controller (12 Mbps) with on-chip transceiver, dedicated DMA and dedicated RAM reduces external component count, while PPS allows designers to assign UART/SPI/I2S/timer functions to almost any I/O pin, simplifying PCB layout when remapping peripherals between board revisions.
Typical applications include USB peripherals and Human Interface Devices (HID), audio playback or recording with the I2S ports, low-cost graphical HMI panels with the PMP, capacitive-touch user interfaces, industrial control nodes, and connected sensor / IoT endpoints.
When designing with this device, pair it with a 3.3V LDO such as the MCP1700 and a 4-layer PCB for clean USB signal integrity. The "V" temperature grade suffix limits operation to -40C to +105C - if you need the full -40C to +125C industrial grade, choose the "/I" or "/E" suffix variant instead.
This page synthesizes distributor stock from DigiKey and Mouser, the Microchip parametric page and family data sheet, same-brand drop-in alternatives from the PIC32MX3/4 family and a cross-brand drop-in option, plus design notes that go beyond what the data sheet provides.
Аналоги без доработки для PIC32MX450F128L-V/PT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC32MX450F128L-V/PT (тот же форм-фактор и посадочное место) — отличается по Package, Core Architecture, ADC, Program Memory (Flash), DMA Channels.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC32MX450F128LT-V/PT
✅ Прямая замена✓ В наличии
$3.74 / шт.
Открыть даташит →PIC32MX450F128L-I/PT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC32MX450F256L-V/PT
✅ Прямая замена✓ В наличии
$4.72 / шт.
Открыть даташит →PIC32MX350F128L-V/PT
✅ Прямая замена✓ В наличии
$2.99 / шт.
Открыть даташит →PIC32MX350F256L-V/PT
✅ Прямая замена✓ В наличии
$5.45 / шт.
Открыть даташит →PIC32MX440F128HT-80V/PT
✅ Прямая замена✓ В наличии
$4.4 / шт.
Открыть даташит →PIC32MX370F512L-V/PT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC32MX450F128L-V/PT Максимальные параметры и электрические характеристики
| Core Architecture | MIPS32 M4K |
| Core Count | 1 |
| Maximum CPU Frequency | 80 MHz (family max 120 MHz for -120V suffix) |
| Program Memory (Flash) | 128 KB |
| SRAM | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Диапазон рабочих температур | -40 C to +105 C (V grade) |
| USB Interface | USB 2.0 Full-Speed (12 Mbps) OTG controller with on-chip transceiver |
| SPI Modules | 2 (I2S-capable) |
| I2C Modules | 2 |
| UART Modules | 2 |
| ADC | 10-bit, up to 28 channels |
| Timers | 5 x 16-bit timers/counters |
| Peripheral Pin Select (PPS) | Yes |
| Parallel Master Port (PMP) | Yes |
| Charge Time Measurement Unit (CTMU) | Yes |
| RTCC | Yes (Real-Time Clock and Calendar) |
| DMA Channels | 8 |
| Корпус | 100-pin TQFP (PT) 12x12 mm, 0.4 mm pitch |
| Тип монтажа | Surface Mount |
| Уровень MSL | 3 (per JEDEC J-STD-020) |
| Статус RoHS | Compliant |
| Lead-Free / Halogen-Free | Yes (per Microchip product page) |
Руководство по цоколевке PIC32MX450F128L-V/PT в корпусе 100-pin tqfp (pt) 12x12 mm, 0.4 mm pitch
Цоколевка для PIC32MX450F128L-V/PT (корпус 100-pin tqfp (pt) 12x12 mm, 0.4 mm pitch). Эта цифровая ИС включает выводы GPIO, интерфейсы связи (UART, SPI, I2C) и выводы питания. Обратитесь к техническому описанию производителя для альтернативных функций выводов и вариантов конфигурации. Необходимо для проектирования встраиваемых систем и трассировки печатных плат.
Нет подробных данных о распиновке для PIC32MX450F128L-V/PT.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
PIC32MX450F128L-V/PT подходит для 6 применениеs: USB Human Interface Devices (HID), Audio Playback and Recording (USB Audio / I2S), Low-Cost Graphical HMI with PMP, Capacitive-Touch User Interface with CTMU, Industrial Sensor Node / IoT Endpoint, USB Bootloader / Field-Upgradeable Embedded Controller.
USB Human Interface Devices (HID)
The PIC32MX450F128L-V/PT is well suited to USB HID peripherals (keyboards, mice, game controllers, custom HID) because of its integrated USB 2.0 Full-Speed OTG controller with on-chip transceiver and dedicated DMA channels. The 80 MHz MIPS32 M4K core gives 100 MIPS / 83 DMIPS - more than enough to handle HID report generation plus custom vendor interfaces. Designers typically pair this MCU with the Microchip USB stack running on MPLAB Harmony, with the USB D+/D- pins routed as a 90-ohm differential pair on the PCB and the VBUS pin fed through a 5V-tolerant resistive divider. Trade-off vs PIC32MX1F-series with USB: the MX450 adds CTMU and PMP, which most HID designs do not need - but the part is pin-compatible so the same design can serve multiple SKUs.
Рекомендуется
Audio Playback and Recording (USB Audio / I2S)
The PIC32MX450F128L-V/PT fits USB audio class devices and standalone I2S audio playback because it integrates two I2S/SPI modules, full-speed USB OTG and 32 KB of SRAM. A typical design streams 16-bit 48 kHz stereo from USB host into an external I2S DAC such as the PCM5102A, using one of the SPI/I2S modules as a master I2S transmitter. The 80 MHz core supports real-time sample-rate conversion and simple DSP effects in firmware; 128 KB of Flash is enough for a full USB audio + DSP pipeline plus a bootloader. Design consideration: I2S clocks must come from the PIC32 reference clock divider and the MCLK pin routed with controlled impedance - keep the I2S trace group to less than 5 cm and match lengths within 25 mm to preserve 50/50 duty cycle.
Рекомендуется
Low-Cost Graphical HMI with PMP
The PIC32MX450F128L-V/PT drives low-cost graphical HMI panels through the integrated Parallel Master Port (PMP), supporting 8-bit parallel interfaces to TFT or OLED displays up to QVGA resolution. The CTMU plus PPS allow capacitive touch sensing on the same I/O that drives the display backlight and reset lines, eliminating a separate touch controller. Designers typically pair the MCU with an SSD1963-based QVGA TFT or a 128x64 OLED over PMP, and use the 128 KB Flash for a small graphics library plus USB command interface for field updates. The 32 KB SRAM is tight for QVGA frame buffering, so most designs write directly to the display and rely on the SSD1963 - 121 KB of internal frame memory.
Рекомендуется
Capacitive-Touch User Interface with CTMU
The PIC32MX450F128L-V/PT supports up to 28 channels of capacitive touch through the integrated Charge Time Measurement Unit (CTMU), enabling slide, wheel and button interfaces on a single chip. Designers typically use the Microchip mTouch library for proximity detection and water-tolerant touch, with each sensor pad routed as a guarded trace and a 10-100 pF reference capacitor on a dedicated analog pin. At 80 MHz core, the firmware can scan 16 pads at 10 ms intervals while still servicing the HID endpoint - perfect for consumer touch panels. Note: CTMU accuracy depends on PCB layout; keep sensor traces short and isolated from switching signals like PMP or PWM backlight.
Рекомендуется
Industrial Sensor Node / IoT Endpoint
The PIC32MX450F128L-V/PT fits connected sensor nodes that need USB diagnostics, multiple serial interfaces and a -40C to +105C industrial temperature range (V grade). A typical node reads 10-bit ADC inputs from sensors, buffers samples in SRAM, and ships them over USB CDC or I2C to a host controller. The 28 ADC channels and dual I2C/I2S/SPI plus Peripheral Pin Select give designers enough flexibility to interface to most industrial sensors without external mux ICs. Trade-off vs simpler PIC16 or PIC24 parts: the MX450 costs more but delivers 5-stage pipelined 32-bit performance - useful if the sensor node runs on-board DSP (filtering, FFT) before forwarding data. Power budget: 3.3V active current around 30 mA at 80 MHz plus USB suspend, so USB suspend mode is essential for battery-backed deployments.
Рекомендуется
USB Bootloader / Field-Upgradeable Embedded Controller
The PIC32MX450F128L-V/PT is ideal for field-upgradeable embedded controllers because the USB OTG + 128 KB Flash + Peripheral Pin Select allow a USB HID bootloader to coexist with the application code. Designers typically reserve the top 16-32 KB of Flash for a bootloader that presents as an MSD or HID device and accepts firmware images via USB. The 32 KB SRAM is enough for a USB stack plus a 4 KB page buffer during erase/write cycles. The PPS feature means USB pins can be reassigned if a board revision relocates the connector - no firmware rework needed. Compared with smaller PIC32MX1/2 parts, the MX450 adds CTMU/PMP which most bootloader-only designs do not need, but the footprint reuse across the family makes it the right default.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC32MX450F128L-V/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC32MX450F128LT-V/PT | PIC32MX450F128L-I/PT | PIC32MX450F256L-V/PT | PIC32MX350F128L-V/PT | PIC32MX350F256L-V/PT | PIC32MX440F128HT-80V/PT | PIC32MX370F512L-V/PT |
|---|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (PT) | 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 | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 128 KB | 256 KB | 128 KB | 512 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Maximum CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| USB 2.0 Full-Speed OTG | Yes | Yes | Yes | Yes | No | No | Yes | No |
| Parallel Master Port (PMP) | Yes | Yes | Yes | Yes | No | No | Yes | Yes |
| CTMU (Capacitive Touch) | Yes | Yes | Yes | Yes | No | No | Yes | Yes |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +125 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C |
| 1-piece Price (USD) | 6.92 | 6.92 (same die, tape and reel) | 7.20 (extended temp) | 7.80 (2x Flash) | 5.95 (no USB) | 6.85 (no USB, 2x Flash) | 6.80 (legacy) | 8.10 (no USB, 4x Flash) |
Ключевые отличия
- USB 2.0 Full-Speed OTG with on-chip transceiver and DMA (против PIC32MX350F128L-V/PT)
- Integrated Parallel Master Port (PMP) for graphical HMI (против PIC32MX350F128L-V/PT)
- CTMU supports up to 28 channels of capacitive touch (против PIC32MX350F128L-V/PT)
- Wider MIPS32 M4K at 80 MHz vs simpler PIC24F at 32 MHz (против PIC32MX1F sub-family or selected IP cores)
Заметки по проектированию
Estimated: at 80 MHz CPU + active USB, total core supply current is approximately 30 mA. With VIN = 3.3V and a low-dropout LDO such as the MCP1700-3302E, the MCU + LDO consumes around 100 mW. Add at least 20% margin for USB inrush current when VBUS hot-plugs. Place a 1 uF X7R bypass within 5 mm of each VDD/AVDD pin pair and a 10 uF bulk cap at the LDO output. The 2.3V minimum requirement means a 3.3V LDO with 100 mV dropout is sufficient for 3.0V minimum input designs.
Route the USB D+ and D- lines as a 90-ohm differential pair on the top layer with continuous ground reference and length matching within 2 mm. Keep total USB trace length under 50 mm to meet Full-Speed signal integrity. The 100-pin TQFP has 0.4 mm pitch - use 0.15 mm/0.20 mm trace/space and a 4-layer stack-up with a continuous ground plane below the MCU. Place the 12 MHz crystal within 5 mm of the OSC1/OSC2 pins with short, symmetric traces and a guard ring tied to ground.
The "V" temperature grade suffix is -40C to +105C, NOT -40C to +125C. If your application must operate above 105C, choose the "/I" or "/E" suffix - the I/E parts are pin-compatible drop-in replacements on the 100-pin TQFP. Common pitfalls: (1) confusing V and I suffixes; (2) not enabling the JTAGEN fuse before debugging; (3) forgetting to configure the PLL to 80 MHz from the 8 MHz FRC before USB operation - USB requires a 48 MHz clock; (4) leaving unused pins floating - PPS defaults them to analog and they must be set to digital output-low.
Decoupling: place a 0.1 uF X7R within 2 mm of every VDD/AVDD pin pair, plus a 10 uF bulk cap shared across the IC. The AVDD pin must be filtered with a ferrite bead or 10 ohm resistor from VDD, with its own 0.1 uF + 10 uF local filter - this is critical for ADC accuracy on the 28 ADC channels. Crystal layout: guard ring around the 12 MHz crystal and load capacitors, keep oscillator traces away from PWM and PMP signals. CTMU touch sensors should have isolated ground keep-out zones (no switching signals underneath).
Информация о соответствии
RoHS compliant per Microchip product page. AEC-Q100 not applicable - this is a general-purpose MCU. Not designed for automotive safety-critical applications; for AEC-Q100 qualified Microchip MCUs, consider the PIC32MX450F128L-E family.
