PIC32MX250F128DT-50I/TL - 50MHz 32-bit MCU 128KB Flash USB | Microchip
MPN: PIC32MX250F128DT-50I/TL ✓ Hoạt độngPIC32MX250F128DT-50I/TL Tóm tắt
A 32-bit microcontroller is a single-chip processor with a 32-bit data path, on-chip Flash program memory, SRAM, and a rich peripheral set. PIC32MX parts sit in the broader taxonomy of 32-bit MCU -> embedded processor -> microcontroller -> semiconductor IC. Unlike 8-bit/16-bit MCUs, the PIC32MX M4K core supports single-cycle multiplication and Harvard architecture, enabling deterministic interrupt latency for real-time control.
Key features include five 16-bit timers/counters, a 16-channel 10-bit ADC capable of 1 Msps conversion, CTMU for capacitance measurement, an analog comparator, and a charge-time measurement unit for mTouch. The USB 2.0 full-speed On-The-Go controller adds tethered/hostless connectivity, while two I2S/SSI peripherals support audio CODECs and serial DACs. PMA graphics interfacing through PMP enables direct connection to QVGA displays without external RAMDACs.
The PIC32MX250F128D is built on a 0.18 µm flash process with the MIPS32 M4K core delivering 1.56 DMIPS/MHz at 50 MHz. Hardware-level PPS remapping of digital peripherals to nearly any I/O pin simplifies PCB routing. Five 16-bit timers support input capture, output compare, and quadrature encoding. The integrated 10-bit ADC supports up to 28 analog inputs and 1 Msps sampling. USB OTG, two I2S, two I2C, two UART/USART peripherals, and an SPI interface provide flexible connectivity.
Typical applications include USB peripherals, audio interfaces, low-cost graphics HMI, mTouch capacitive touch sensing, and industrial control. The USB OTG and PMP graphics interface make it well-suited for embedded hosts, while the CTMU supports capacitive buttons and sliders in human-machine interfaces.
When designing with this part, note that the 44-pin VTLA package shares its pinout with the PIC32MX250F128D-50I/TL non-T variant. Operating voltage is 2.3V-3.6V; a 3.3V LDO with adequate decoupling is required for noise-sensitive applications.
This page combines verified distributor pricing, same-package drop-in alternatives, and practical design notes that are not aggregated in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX250F128DT-50I/TL — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC32MX250F128DT-50I/TL (cùng hình factor và footprint) — khác nhau ở ADC, Package, Core Architecture, Timers, I/O Pins.
PIC32MX250F128D-50I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX250F128D-50I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX230F128DT-50I/TL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX170F256DT-50I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX150F128DT-50I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX130F128HT-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX270F256B-E/RTC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX250F128DT-50I/TL Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Frequency | 50 MHz |
| DMIPS Performance | 83 DMIPS |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 32 KB |
| Operating Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 34 (approx.) |
| ADC | 10-bit, up to 28 channels, 1 Msps |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| Timers | 5 x 16-bit |
| UART/USART | 2 |
| I2C | 2 |
| SPI/I2S | 2 SPI or I2S |
| PMP (Parallel Master Port) | Yes (graphics interface) |
| RTCC | Yes |
| CTMU (Capacitive Touch) | Yes (mTouch) |
| Analog Comparators | 2 |
| Peripheral Pin Select (PPS) | Yes |
| Hộp | 44-pin VTLA (6x6 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX250F128DT-50I/TL
| Chân 1 | RA0 — I/O port A bit 0 / analog input AN0 |
| Chân 2 | RA1 — I/O port A bit 1 / analog input AN1 |
| Chân 3 | RA2 — I/O port A bit 2 / analog input AN2 |
| Chân 4 | RA3 — I/O port A bit 3 / analog input AN3 |
| Chân 5 | RA4 — I/O port A bit 4 |
| Chân 6 | VDD — Positive supply voltage (2.3V-3.6V) |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RB0 — I/O port B bit 0 / analog input AN4 |
| Chân 9 | RB1 — I/O port B bit 1 / analog input AN5 |
| Chân 10 | RB2 — I/O port B bit 2 / analog input AN6 |
| Chân 11 | RB3 — I/O port B bit 3 / analog input AN7 |
| Chân 12 | RB4 — I/O port B bit 4 / analog input AN8 |
| Chân 13 | RB5 — I/O port B bit 5 / analog input AN9 |
| Chân 14 | RB6 — I/O port B bit 6 / AN10 / ICDCLK |
| Chân 15 | RB7 — I/O port B bit 7 / AN11 / ICDDAT |
| Chân 16 | VSS — Ground reference |
| Chân 17 | RC0 — I/O port C bit 0 |
| Chân 18 | RC1 — I/O port C bit 1 |
| Chân 19 | RC2 — I/O port C bit 2 |
| Chân 20 | RC3 — I/O port C bit 3 |
| Chân 21 | RC4 — I/O port C bit 4 / D- |
| Chân 22 | RC5 — I/O port C bit 5 / D+ |
| Chân 23 | RC6 — I/O port C bit 6 |
| Chân 24 | RC7 — I/O port C bit 7 |
| Chân 25 | RD0 — I/O port D bit 0 |
| Chân 26 | RD1 — I/O port D bit 1 |
| Chân 27 | RD2 — I/O port D bit 2 |
| Chân 28 | RD3 — I/O port D bit 3 |
| Chân 29 | RD4 — I/O port D bit 4 |
| Chân 30 | RD5 — I/O port D bit 5 |
| Chân 31 | RD6 — I/O port D bit 6 |
| Chân 32 | RD7 — I/O port D bit 7 |
| Chân 33 | RE0 — I/O port E bit 0 / analog input AN12 |
| Chân 34 | RE1 — I/O port E bit 1 / analog input AN13 |
| Chân 35 | RE2 — I/O port E bit 2 / analog input AN14 |
| Chân 36 | RE3 — I/O port E bit 3 / analog input AN15 |
| Chân 37 | RE4 — I/O port E bit 4 / analog input AN16 |
| Chân 38 | RE5 — I/O port E bit 5 / analog input AN17 |
| Chân 39 | VSS — Ground reference |
| Chân 40 | RF0 — I/O port F bit 0 |
| Chân 41 | RF1 — I/O port F bit 1 |
| Chân 42 | RF2 — I/O port F bit 2 |
| Chân 43 | RF3 — I/O port F bit 3 |
| Chân 44 | RF4 — I/O port F bit 4 |
Ứng dụng tiêu biểu
PIC32MX250F128DT-50I/TL phù hợp cho 6 Áp dụngs: USB Audio Device, Industrial HMI with Graphics, Capacitive Touch Interface (mTouch), USB Barcode Scanner, Industrial Sensor Hub, IoT Edge Node with USB.
USB Audio Device
The PIC32MX250F128DT-50I/TL's integrated USB 2.0 full-speed OTG controller and dual I2S peripherals make it ideal for USB audio peripherals such as USB headsets, USB speakers, and USB microphones. The 50 MHz MIPS32 M4K core handles USB isochronous transfers plus audio decoding in software. With 128 KB Flash and 32 KB SRAM, the MCU easily fits USB audio class 1.0 firmware, descriptor tables, and small audio buffers. For best results, pair with a low-jitter crystal and 27-ohm USB termination resistors.
Được đề xuất
Industrial HMI with Graphics
The PIC32MX250F128DT-50I/TL is ideal for low-cost QVGA graphics HMI panels thanks to its integrated Parallel Master Port (PMP) that drives TFT displays directly without external controllers. The 50 MHz core renders menus and widgets in real time while PMP offloads pixel data. Peripheral Pin Select (PPS) simplifies PCB routing of display data lines. 32 KB SRAM holds frame buffers for small icons; 128 KB Flash accommodates the graphics library and HMI firmware stack.
Được đề xuất
Capacitive Touch Interface (mTouch)
The PIC32MX250F128DT-50I/TL includes the CTMU peripheral for mTouch capacitive touch sensing, making it perfect for touch button panels and slider controls on appliances and industrial equipment. The 10-bit ADC with up to 28 channels combined with the CTMU delivers accurate capacitive measurements with sub-percent repeatability. The 32 KB SRAM and 128 KB Flash support touch firmware, gesture recognition, and visual feedback. Industrial temperature grade -40C to +85C supports harsh environments.
Được đề xuất
USB Barcode Scanner
The PIC32MX250F128DT-50I/TL is well suited for handheld USB barcode scanners thanks to its 50 MHz MIPS M4K core, integrated USB device controller, and UART for camera or sensor modules. 128 KB Flash accommodates decoding algorithms for 1D/2D barcodes, while 32 KB SRAM buffers scan lines. The 44-pin VTLA package fits compact scanner housings. With two UART peripherals, both the imaging sensor and external serial interface can be connected simultaneously.
Được đề xuất
Industrial Sensor Hub
The PIC32MX250F128DT-50I/TL works as an industrial sensor hub, reading analog sensors via its 10-bit 1 Msps ADC with up to 28 channels and forwarding data via UART, I2C, or USB. The 5 timers handle periodic sampling at precise intervals. With 32 KB SRAM, the MCU can aggregate readings from multiple sensors before forwarding to a host controller. Operating voltage of 2.3V to 3.6V and industrial temperature grade make it rugged for factory automation.
Được đề xuất
IoT Edge Node with USB
The PIC32MX250F128DT-50I/TL is suited for IoT edge nodes that use USB for power and connectivity. The USB OTG controller supports device-mode operation for charging and data. The 50 MHz MIPS M4K core and 32 KB SRAM can run small MQTT-style protocols, while the 128 KB Flash accommodates secure firmware. Two I2C ports connect to environmental sensors; two UARTs interface with cellular or BLE modules. The CTMU supports capacitive wake-up buttons for low-power operation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX250F128DT-50I/TL — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC32MX250F128D-50I/TL | PIC32MX250F128D-50I/ML | PIC32MX230F128DT-50I/TL | PIC32MX170F256DT-50I/TL | PIC32MX150F128DT-50I/TL |
|---|---|---|---|---|---|---|
| Package | 44-VTLA (6x6 mm) | 44-VTLA (6x6 mm) - same | 44-QFN (8x8 mm) - different | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Max CPU Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash | 128 KB | 128 KB | 128 KB | 256 KB (2x) | 128 KB | 256 KB (2x) |
| SRAM | 32 KB | 32 KB | 32 KB | 64 KB (2x) | 32 KB | 64 KB (2x) |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device/Host |
| PMP (Graphics) | Yes | Yes | No | No | No | No |
| ADC Channels | 28 | 28 | 28 | 28 | 28 | 28 |
| Operating Voltage | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V |
Bảo phân biệt quan trọng
- Integrated PMP graphics interface (vsPIC32MX230F128DT-50I/TL)
- 50 MHz CPU speed in industrial grade (vsPIC32MX250F128D-I/PT (40 MHz))
- Compact 6x6 mm VTLA package (vsPIC32MX250F128D-I/PT (TQFP-44 10x10 mm))
Ghi chú thiết kế
The PIC32MX250F128DT-50I/TL operates from 2.3V to 3.6V and requires multiple bulk capacitors for stable operation. Place a 10uF tantalum or ceramic capacitor on each VDD pin pair plus a 0.1uF ceramic decoupling capacitor within 5 mm of every VDD pin. A 10uF bulk capacitor on the VBUS rail with a ferrite bead is recommended when powering from USB. For noise-sensitive analog circuits, use a separate LDO to feed AVdd.
Estimated: with the 44-pin VTLA (6x6 mm) package, allocate at least 4 layer PCB with continuous ground plane beneath the MCU. Keep USB D+/D- traces matched to 90 ohms differential, less than 50 mm long, and isolated from switching signals. Place the 12 MHz crystal or external oscillator within 5 mm of the OSC1/OSC2 pins with short traces and a guard ring. The exposed thermal pad must be soldered to a 5x5 mm copper pour connected to VSS for heat dissipation.
Avoid configuring I/O pins as analog inputs without disabling the digital input buffer - this adds parasitic current. When using USB, ensure the VBUS sense pin is monitored before driving D+/D- to avoid back-powering. The Peripheral Pin Select (PPS) registers must be unlocked before configuration; lock them after to prevent accidental changes. Never exceed the 3.6V absolute maximum on any I/O pin or permanent damage will occur.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this part targets industrial/commercial applications, not automotive. Halogen-free per Microchip environmental compliance data.