PIC32MX450F128L-V/TL - 80MHz 32-Bit MCU 128KB Flash USB | Microchip
Артикул: PIC32MX450F128L-V/TL ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $7.42 | $7,42 |
| 10 | $6.78 | $67,80 |
| 100 | $6.04 | $604,00 |
| 500 | $5.41 | $2.705,00 |
| 1.000 | $4.82 | $4.820,00 |
PIC32MX450F128L-V/TL Обзор
A 32-bit microcontroller (MCU) is an integrated circuit that combines a 32-bit processor core, program and data memory, and a configurable set of on-chip peripherals (ADC, timers, communication interfaces, I/O) on a single silicon die. Microcontrollers sit at the top of the embedded-system hierarchy: system-on-module -> MCU -> CPU core -> instruction set, enabling battery-powered and cost-sensitive products to perform deterministic real-time control. The PIC32MX series uses the MIPS32 instruction set with the M4K pipeline to deliver up to 150 DMIPS while keeping active power below 1 mA/MHz in typical conditions.
Key features of the PIC32MX450F128L-V/TL include 128 KB Flash (128K x 8), 16 KB SRAM, USB 2.0 full-speed OTG with on-chip transceiver, two analog comparators with 2 us response, a 10-bit 1 Msps ADC with 28 channels, five 16-bit timers/captures, and a Parallel Master Port for graphics or memory expansion. The -V grade denotes an operating range of -40C to +105C; the /TL suffix identifies a 124-VTLA tray/tube packaging variant.
Architecturally the device uses a Harvard-style bus with separate Flash and RAM paths, a 5-stage M4K pipeline, and a multi-vector interrupt controller. The 124-VTLA package exposes up to 97 general-purpose I/O pins and a dedicated trace interface for real-time instruction trace through dedicated TRCLK/TRDx pins, which simplifies firmware debugging on production hardware.
Typical applications include USB-equipped industrial HMI panels, audio playback devices using SPI/I2S codecs, low-cost graphics terminals using the PMP bus, sensor aggregation hubs with USB-CDC virtual COM port, and USB HID/mouse/keyboard controllers. Its combination of USB, PMP, and 28-channel ADC makes it well suited to multi-signal embedded designs.
When designing with this part, allocate the exposed thermal pad (EP) directly under the IC to a continuous top-layer ground pour to keep junction temperature within the 105C operating envelope. The PIC32MX3/4 datasheet recommends a 10 uF + 0.1 uF decoupling pair on each VDD/VSS pin pair placed within 5 mm of the package, and a dedicated ferrite-bead-isolated USB VBUS rail to keep high-frequency USB transients away from the analog supply.
This page synthesizes the Microchip datasheet, current DigiKey/Mouser pricing, drop-in same-package alternatives, and practical PCB and USB-bus design notes not aggregated in any single distributor listing.
Аналоги без доработки для PIC32MX450F128L-V/TL — 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/TL (тот же форм-фактор и посадочное место) — отличается по Package, USB, ADC, Parallel Master Port (PMP), Core Architecture.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC32MX450F128LT-V/TL
✅ Прямая замена✓ В наличии
$3.2 / шт.
Открыть даташит →PIC32MX470F512L-V/TL
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC32MX440F128L-80V/BG
✅ Прямая замена✓ В наличии
$4.75 / шт.
Открыть даташит →PIC32MX370F512L-V/TL
✅ Прямая замена✓ В наличии
$5.58 / шт.
Открыть даташит →PIC32MX450F128H-I/RG
✅ Прямая замена✓ В наличии
$2.79 / шт.
Открыть даташит →PIC32MX270F512L-V/PT
✅ Прямая замена✓ В наличии
$6.48 / шт.
Открыть даташит →PIC32MX450F128L-V/TL Максимальные параметры и электрические характеристики
| Core | MIPS32 M4K 32-bit |
| Max CPU Frequency | 80 MHz |
| DMIPS | 150 DMIPS (per family spec) |
| Flash Program Memory | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Voltage Tolerance | 5 V-tolerant digital pins |
| USB | USB 2.0 Full-Speed OTG with on-chip transceiver |
| SPI / I2S | 2 modules |
| I2C | 2 modules |
| UART | 2 modules |
| ADC | 10-bit, 1 Msps, up to 28 channels |
| Analog Comparators | 2 |
| Timers | 5 x 16-bit timers/capture |
| Parallel Master Port (PMP) | 8-bit, for graphics or external memory |
| I/O Pins (max) | 97 |
| Корпус | 124-VTLA (9x9 mm) with exposed pad |
| Operating Temperature (V grade) | -40C to +105C |
| Programming/Debug | ICSP, 4-wire JTAG, Real-Time Instruction Trace |
| Тип монтажа | Surface Mount |
| Статус RoHS | Compliant |
Конфигурация выводов PIC32MX450F128L-V/TL
| Контакт 1 | RA0 — I/O port A bit 0 / AN0 analog input |
| Контакт 2 | RA1 — I/O port A bit 1 / AN1 analog input |
| Контакт 3 | RA2 — I/O port A bit 2 / AN2 analog input |
| Контакт 4 | RA3 — I/O port A bit 3 / AN3 analog input |
| Контакт 5 | RA4 — I/O port A bit 4 |
| Контакт 6 | RA5 — I/O port A bit 5 |
| Контакт 7 | VDD — Core supply voltage 2.3-3.6 V |
| Контакт 8 | VSS — Ground reference |
| Контакт 9 | OSC1 — Crystal/oscillator input |
| Контакт 10 | OSC2 — Crystal/oscillator output |
| Контакт 11 | PGED1 — ICSP data pin 1 / I/O |
| Контакт 12 | PGEC1 — ICSP clock pin 1 / I/O |
| Контакт 13 | RB0 — I/O port B bit 0 |
| Контакт 14 | RB1 — I/O port B bit 1 |
| Контакт 15 | RB2 — I/O port B bit 2 |
| Контакт 16 | RB3 — I/O port B bit 3 |
| Контакт 17 | RB4 — I/O port B bit 4 |
| Контакт 18 | RB5 — I/O port B bit 5 / AN5 analog input |
| Контакт 19 | RB6 — I/O port B bit 6 / AN6 analog input |
| Контакт 20 | RB7 — I/O port B bit 7 / AN7 analog input |
| Контакт 21 | RB8 — I/O port B bit 8 |
| Контакт 22 | RB9 — I/O port B bit 9 |
| Контакт 23 | RB10 — I/O port B bit 10 |
| Контакт 24 | RB11 — I/O port B bit 11 |
| Контакт 25 | RB12 — I/O port B bit 12 |
| Контакт 26 | RB13 — I/O port B bit 13 |
| Контакт 27 | RB14 — I/O port B bit 14 |
| Контакт 28 | RB15 — I/O port B bit 15 |
| Контакт 29 | VDD — Core supply voltage 2.3-3.6 V |
| Контакт 30 | VSS — Ground reference |
| Контакт 31 | RC0 — I/O port C bit 0 |
| Контакт 32 | RC1 — I/O port C bit 1 |
| Контакт 33 | RC2 — I/O port C bit 2 |
| Контакт 34 | RC3 — I/O port C bit 3 |
| Контакт 35 | RC4 — I/O port C bit 4 |
| Контакт 36 | RC5 — I/O port C bit 5 |
| Контакт 37 | RC6 — I/O port C bit 6 |
| Контакт 38 | RC7 — I/O port C bit 7 |
| Контакт 39 | RC8 — I/O port C bit 8 |
| Контакт 40 | RC9 — I/O port C bit 9 |
| Контакт 41 | RC10 — I/O port C bit 10 |
| Контакт 42 | RC11 — I/O port C bit 11 |
| Контакт 43 | RC12 — I/O port C bit 12 |
| Контакт 44 | RC13 — I/O port C bit 13 |
| Контакт 45 | RC14 — I/O port C bit 14 |
| Контакт 46 | RC15 — I/O port C bit 15 |
| Контакт 47 | VDD — Core supply voltage 2.3-3.6 V |
| Контакт 48 | VSS — Ground reference |
| Контакт 49 | RD0 — I/O port D bit 0 |
| Контакт 50 | RD1 — I/O port D bit 1 |
| Контакт 51 | RD2 — I/O port D bit 2 |
| Контакт 52 | RD3 — I/O port D bit 3 |
| Контакт 53 | RD4 — I/O port D bit 4 |
| Контакт 54 | RD5 — I/O port D bit 5 |
| Контакт 55 | RD6 — I/O port D bit 6 |
| Контакт 56 | RD7 — I/O port D bit 7 |
| Контакт 57 | RD8 — I/O port D bit 8 |
| Контакт 58 | RD9 — I/O port D bit 9 |
| Контакт 59 | RD10 — I/O port D bit 10 |
| Контакт 60 | RD11 — I/O port D bit 11 |
| Контакт 61 | RD12 — I/O port D bit 12 |
| Контакт 62 | RD13 — I/O port D bit 13 |
| Контакт 63 | RD14 — I/O port D bit 14 |
| Контакт 64 | RD15 — I/O port D bit 15 |
| Контакт 65 | VDD — Core supply voltage 2.3-3.6 V |
| Контакт 66 | VSS — Ground reference |
| Контакт 67 | RE0 — I/O port E bit 0 / PMD0 |
| Контакт 68 | RE1 — I/O port E bit 1 / PMD1 |
| Контакт 69 | RE2 — I/O port E bit 2 / PMD2 |
| Контакт 70 | RE3 — I/O port E bit 3 / PMD3 |
| Контакт 71 | RE4 — I/O port E bit 4 / PMD4 |
| Контакт 72 | RE5 — I/O port E bit 5 / PMD5 |
| Контакт 73 | RE6 — I/O port E bit 6 / PMD6 |
| Контакт 74 | RE7 — I/O port E bit 7 / PMD7 |
| Контакт 75 | RE8 — I/O port E bit 8 / PMA8 |
| Контакт 76 | RE9 — I/O port E bit 9 / PMA9 |
| Контакт 77 | VDD — Core supply voltage 2.3-3.6 V |
| Контакт 78 | VSS — Ground reference |
| Контакт 79 | RF0 — I/O port F bit 0 |
| Контакт 80 | RF1 — I/O port F bit 1 |
| Контакт 81 | RF2 — I/O port F bit 2 |
| Контакт 82 | RF3 — I/O port F bit 3 |
| Контакт 83 | RF4 — I/O port F bit 4 |
| Контакт 84 | RF5 — I/O port F bit 5 |
| Контакт 85 | RF6 — I/O port F bit 6 |
| Контакт 86 | RF7 — I/O port F bit 7 |
| Контакт 87 | RF8 — I/O port F bit 8 |
| Контакт 88 | RF9 — I/O port F bit 9 |
| Контакт 89 | RF10 — I/O port F bit 10 |
| Контакт 90 | RF11 — I/O port F bit 11 |
| Контакт 91 | RF12 — I/O port F bit 12 |
| Контакт 92 | RF13 — I/O port F bit 13 |
| Контакт 93 | VDD — Core supply voltage 2.3-3.6 V |
| Контакт 94 | VSS — Ground reference |
| Контакт 95 | RG0 — I/O port G bit 0 |
| Контакт 96 | RG1 — I/O port G bit 1 |
| Контакт 97 | RG2 — I/O port G bit 2 |
| Контакт 98 | RG3 — I/O port G bit 3 |
| Контакт 99 | RG6 — I/O port G bit 6 / USB D- |
| Контакт 100 | RG7 — I/O port G bit 7 / USB D+ |
| Контакт 101 | RG8 — I/O port G bit 8 |
| Контакт 102 | RG9 — I/O port G bit 9 |
| Контакт 103 | RG10 — I/O port G bit 10 |
| Контакт 104 | RG11 — I/O port G bit 11 |
| Контакт 105 | RG12 — I/O port G bit 12 |
| Контакт 106 | RG13 — I/O port G bit 13 |
| Контакт 107 | RG14 — I/O port G bit 14 |
| Контакт 108 | RG15 — I/O port G bit 15 |
| Контакт 109 | VDD — Core supply voltage 2.3-3.6 V |
| Контакт 110 | VSS — Ground reference |
| Контакт 111 | VUSB3V3 — USB transceiver 3.3 V supply |
| Контакт 112 | VBUS — USB bus voltage detect |
| Контакт 113 | TRCLK — Trace clock output |
| Контакт 114 | TRD0 — Trace data bit 0 |
| Контакт 115 | TRD1 — Trace data bit 1 |
| Контакт 116 | TRD2 — Trace data bit 2 |
| Контакт 117 | TRD3 — Trace data bit 3 |
| Контакт 118 | MCLR — Master clear (reset) input, active-low |
| Контакт 119 | PGED2 — ICSP data pin 2 / I/O |
| Контакт 120 | PGEC2 — ICSP clock pin 2 / I/O |
| Контакт 121 | VREF+ — ADC voltage reference positive |
| Контакт 122 | VREF- — ADC voltage reference negative |
| Контакт 123 | AVDD — Analog supply voltage |
| Контакт 124 | AVSS — Analog ground |
Типичное применение
PIC32MX450F128L-V/TL подходит для 6 применениеs: USB-Equipped Industrial HMI Panels, USB Audio Playback Devices, Graphics Display Terminals (PMP-driven TFT), USB CDC Virtual COM Port Bridges, USB HID Keyboards / Mice / Gamepads, Multi-Channel Sensor Aggregation Hubs.
USB-Equipped Industrial HMI Panels
The PIC32MX450F128L-V/TL drives industrial HMI panels by combining USB 2.0 Full-Speed OTG (allowing PC-based configuration and firmware update without an external programmer), an 8-bit Parallel Master Port for direct graphics LCD interfacing, and a 10-bit 1 Msps ADC with 28 channels for back-panel sensor inputs. The 80 MHz MIPS32 M4K core handles touch-screen decoding plus on-screen graphics refresh at 30-60 Hz, while 128 KB Flash fits mid-sized LVGL/Micrium GUI applications. Practical: dedicate the on-chip USB transceiver to a USB-C receptacle with ESD protection (USBLC6-2SC6), and place a 100 uF tantalum plus 0.1 uF ceramic on VBUS to keep inrush below USB 2.0 spec.
Рекомендуется
USB Audio Playback Devices
The PIC32MX450F128L-V/TL enables low-cost USB audio peripherals by acting as a USB Full-Speed audio device and streaming PCM samples over I2S to an external audio DAC. The two integrated SPI/I2S modules support up to 48 kHz / 16-bit stereo streams, while the integrated USB 2.0 OTG transceiver eliminates the need for an external PHY. The 80 MHz core, 16 KB SRAM, and DMA engine support concurrent USB isochronous transfer and I2S DMA with sub-frame jitter. Practical: connect I2S BCLK/LRCK/DATA to a TI TLV320AIC23B or AKM AK4621A codec, and use a 12.288 MHz crystal to provide 256 x 48 kHz audio master clock without an external PLL.
Рекомендуется
Graphics Display Terminals (PMP-driven TFT)
The PIC32MX450F128L-V/TL drives small QVGA/WQVGA TFT LCDs directly via its 8-bit Parallel Master Port, supporting Intel 8080 and Motorola 6800 modes. With 80 MHz CPU and 16 KB SRAM the part performs single-buffered 320x240 at 16 bpp with a partial frame buffer in RAM, or full QVGA refresh using PMP DMA. The 124-pin VTLA provides 97 GPIO, freeing ample pins for SD card, SPI flash, and capacitive touch. Practical: drive PMP through 100 ohm source-terminated series resistors to suppress 3.3 V reflections on long FPC traces, and place a 4.7 uF bulk cap on the panel's AVDD pin.
Рекомендуется
USB CDC Virtual COM Port Bridges
The PIC32MX450F128L-V/TL acts as a USB-to-UART bridge using its on-chip USB 2.0 OTG controller and one of its two UART modules, eliminating the external FTDI chip and BOM cost. With 80 MHz CPU it handles CDC class requests, line-coding, and baud-rate adaptation up to 921600 bps without flow control. The 128 KB Flash stores both bootloader and application, while 16 KB SRAM is sufficient for 4 KB HID plus CDC buffers. Practical: include a 4.7 uF + 0.1 uF decoupling pair on VUSB3V3 and 100 nF in parallel on the D+/D- lines for USB compliance.
Рекомендуется
USB HID Keyboards / Mice / Gamepads
The PIC32MX450F128L-V/TL supports USB HID input devices via the on-chip USB OTG transceiver and 5 16-bit timers for matrix/keyboard scanning. Its 80 MHz core debounces up to an 8x16 key matrix at 1 kHz, with 128 KB Flash storing multiple HID report descriptors (boot keyboard, mouse, gamepad) and 16 KB SRAM large enough for keyboard rollover buffers. The 124-VTLA exposes 97 GPIO for direct matrix drive. Practical: add 33 ohm series resistors on D+/D-, place a ferrite bead on VBUS to suppress ESD, and use 5 V-tolerant I/O to read older 5 V scan matrices directly.
Рекомендуется
Multi-Channel Sensor Aggregation Hubs
The PIC32MX450F128L-V/TL aggregates industrial sensors via its 28-channel 10-bit 1 Msps ADC, two I2C buses (for digital sensors), two analog comparators (for fast over-current or threshold detection), and uploads telemetry through USB CDC. The 5 16-bit timers pace multi-rate sampling (e.g., 100 Hz temperature, 1 kHz vibration), and 16 KB SRAM holds 1024-sample ring buffers. Practical: add a 4.7 nF RC plus op-amp buffer to each analog input for ADC source impedance below 2 kohm, and isolate the USB D+/D- lines with a common-mode choke to reject EMI in motor cabinets.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC32MX450F128L-V/TL — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC32MX450F128LT-V/TL | PIC32MX470F512L-V/TL | PIC32MX440F128L-80V/BG | PIC32MX370F512L-V/TL | PIC32MX450F128H-I/RG | PIC32MX270F512L-V/PT |
|---|---|---|---|---|---|---|---|
| Package | 124-VTLA (9x9) | 124-VTLA (9x9) - same | 124-VTLA (9x9) - same | 124-VTLA (9x9) family - same | 124-VTLA (9x9) - same | 124-VTLA (9x9) family - same | 100-TQFP (14x14) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | MIPS32 M4K 80 MHz | MIPS32 M4K 80 MHz | 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 | 512 KB | 128 KB | 512 KB | 128 KB | 512 KB |
| SRAM | 16 KB | 16 KB | 128 KB | 16 KB | 128 KB | 16 KB | 64 KB |
| USB 2.0 OTG | Yes (integrated transceiver) | Yes | Yes | No (external PHY) | No | Yes | Yes |
| ADC Channels | 28 | 28 | 28 | 13 | 28 | 28 | 28 |
| Operating Temperature | -40C to +105C (V) | -40C to +125C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +85C (I) | -40C to +105C |
Ключевые отличия
- Integrated USB 2.0 Full-Speed OTG transceiver (против PIC32MX440F128L-80V/BG)
- Higher-density 124-VTLA package with 97 GPIO (против PIC32MX270F512L-V/PT (100-TQFP))
- Larger Flash (128 KB) than baseline PIC32MX3 (против PIC32MX370F512L-V/TL)
- 105C V-grade operating range with full peripheral set (против PIC32MX450F128H-I/RG (-I grade 85C))
Заметки по проектированию
Estimated: For a 124-VTLA board running 80 MHz MIPS M4K at 3.3 V, place a 10 uF + 0.1 uF ceramic decoupling pair within 5 mm of every VDD/VSS pin pair. Add a dedicated 4.7 uF + 100 nF on VUSB3V3 (pin 111) and a separate ferrite-bead-isolated 3.3 V LDO for the USB transceiver to keep switching noise off the analog supply. Decoupling the AVDD/AVSS pins (123, 124) with 100 nF ceramic plus 10 uF bulk reduces ADC noise by 1-2 LSB.
Estimated: at 80 MHz and 3.3 V, active current is approximately 55-65 mA (per family datasheet typical at 1 mA/MHz plus I/O leakage), so power dissipation is roughly 200 mW. The 124-VTLA exposed pad must be soldered to a top-layer ground pour of at least 25 x 25 mm to keep theta_JA below 25 C/W; without the EP soldered, junction temperature will exceed 105C under load.
Route the USB D+/D- differential pair (RG6, RG7) with 90 ohm differential impedance and 33 ohm series source resistors placed within 5 mm of the IC. Use a common-mode choke (e.g., ACM2012) near the USB receptacle to suppress common-mode emissions, and place a USBLC6-2SC6 ESD array within 10 mm of the connector. Keep trace length matching under 0.5 mm to meet USB 2.0 FS signal-integrity requirements.
Do not assume the 124-VTLA and 100-TQFP packages are interchangeable. PIC32MX450F128L is offered in 100-TQFP (PIC32MX450F128L-V/PF, DigiKey 4080150) with a different pinout - substituting one for the other requires PCB rework. Always verify the package code suffix (TL = VTLA tube, PT = TQFP tray, PF = TQFP tray) before finalizing the BOM. Also note the -V grade is 105C, not 125C; choose the -LT/-T variant for higher temperatures.
Keep the 12 MHz primary oscillator traces (OSC1, OSC2) short (under 10 mm) and surround them with a ground guard ring to reduce EMI susceptibility. Place the ICSP pins (PGED1/PGEC1, PGED2/PGEC2) on accessible PCB test pads for field firmware update, and isolate them from analog signals by at least 3 mm to avoid digital switching noise coupling into ADC channels.
Информация о соответствии
RoHS and lead-free confirmed by Microchip product page (microchip.com/en-us/product/PIC32MX450F128L). AEC-Q100 not applicable for industrial-grade MCU; halogen-free status not stated by manufacturer.
