PIC32MX250F256H-50I/PT - 50MHz 32-bit MCU 256KB Flash | Microchip
MPN: PIC32MX250F256H-50I/PT ✓ Hoạt độngPIC32MX250F256H-50I/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and programmable peripherals into one package. Within the embedded hierarchy, MCUs sit between simple logic ICs and full microprocessors, enabling self-contained control for sensor nodes, user interfaces, and motor or display subsystems. The PIC32MX family occupies the upper end of Microchip's 32-bit MCU lineup, providing MIPS performance with PIC ecosystem familiarity.
Key features include 50 MHz core clock, 83 DMIPS, 256 KB Flash, 32 KB SRAM, USB 2.0 full-speed On-The-Go (OTG), two I2S and four SPI modules, two I2C, five UART, 16-channel 10-bit ADC at 1 Msps, five 16-bit timers, a Parallel Master Port (PMP), and Peripheral Pin Select (PPS) for flexible pin mapping. The part operates from 2.3V to 3.6V across -40C to +85C industrial temperature range.
The M4K core uses a 5-stage pipeline with single-cycle multiply and hardware divide. PPS remaps digital peripherals to most I/O pins, simplifying PCB layout. The PMP module supports graphics interfaces with dual read/write buffers, while the USB OTG controller enables device, host, and dual-role operation without an external PHY.
Typical applications include industrial control panels, USB peripherals (HID, CDC, mass storage), audio processing with I2S codecs, and small color TFT displays driven through PMP. The combination of USB, I2S, SPI, and graphics makes the PIC32MX250F256H-50I/PT well suited to connected HMI nodes.
When designing with this part, ensure 3.3V rail decoupling per Microchip recommendations and consult the family reference manual for PPS configuration. The 50 MHz speed grade and 256 KB Flash support real-time USB stacks plus application firmware with room to spare.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet and family reference manual.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX250F256H-50I/PT — 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 PIC32MX250F256H-50I/PT (cùng hình factor và footprint) — khác nhau ở ADC, Package, USB, SRAM, Timers.
PIC32MX230F256D-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX230F256DT-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX150F256H-50I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX170F256D-50I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX150F256HT-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX270F256D-50I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX250F256H-50I/PT Tỷ lệ tối đa & tính chất điện
| Core | MIPS32 M4K |
| Core Architecture | 32-bit RISC |
| Maximum CPU Clock | 50 MHz |
| DMIPS | 83 |
| Program Memory (Flash) | 256 KB (256K x 8) |
| SRAM | 32 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| ADC | 10-bit, up to 1 Msps, 16 channels |
| USB | USB 2.0 Full-Speed OTG |
| SPI | 4 modules |
| I2C | 2 modules |
| UART | 5 modules |
| I2S | 2 modules |
| Timers | 5 x 16-bit |
| Parallel Master Port (PMP) | Yes, with dual buffers |
| Peripheral Pin Select (PPS) | Yes |
| Hộp | 64-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX250F256H-50I/PT
| Chân 1 | OSC1/RC13 — Oscillator crystal input or digital I/O RC13 |
| Chân 2 | OSC2/RC15 — Oscillator crystal output or digital I/O RC15 |
| Chân 3 | RC14 — Digital I/O RC14 |
| Chân 4 | RC12 — Digital I/O RC12 |
| Chân 5 | VDD — Positive supply voltage (2.3V-3.6V) |
| Chân 6 | RC11 — Digital I/O RC11 |
| Chân 7 | RC10 — Digital I/O RC10 |
| Chân 8 | RC9 — Digital I/O RC9 |
| Chân 9 | RC8 — Digital I/O RC8 |
| Chân 10 | RC7 — Digital I/O RC7 |
| Chân 11 | RC6 — Digital I/O RC6 |
| Chân 12 | VSS — Ground reference |
| Chân 13 | RC5 — Digital I/O RC5 |
| Chân 14 | RC4 — Digital I/O RC4 |
| Chân 15 | RC3 — Digital I/O RC3 |
| Chân 16 | RC2 — Digital I/O RC2 |
| Chân 17 | RB15 — Digital I/O RB15 |
| Chân 18 | RB14 — Digital I/O RB14 |
| Chân 19 | VSS — Ground reference |
| Chân 20 | RB13 — Digital I/O RB13 |
| Chân 21 | RB12 — Digital I/O RB12 |
| Chân 22 | RB11 — Digital I/O RB11 |
| Chân 23 | RB10 — Digital I/O RB10 |
| Chân 24 | RB9 — Digital I/O RB9 |
| Chân 25 | RB8 — Digital I/O RB8 |
| Chân 26 | RB7 — Digital I/O RB7 |
| Chân 27 | RB6 — Digital I/O RB6 (PGEC2/PGED2) |
| Chân 28 | RB5 — Digital I/O RB5 (PGEC1/PGED1) |
| Chân 29 | RB4 — Digital I/O RB4 |
| Chân 30 | RB3 — Digital I/O RB3 |
| Chân 31 | RB2 — Digital I/O RB2 |
| Chân 32 | RB1 — Digital I/O RB1 (PGEC1) |
| Chân 33 | RB0 — Digital I/O RB0 (PGED1) |
| Chân 34 | RA15 — Digital I/O RA15 |
| Chân 35 | VSS — Ground reference |
| Chân 36 | RA14 — Digital I/O RA14 |
| Chân 37 | RA13 — Digital I/O RA13 |
| Chân 38 | RA12 — Digital I/O RA12 |
| Chân 39 | RA11 — Digital I/O RA11 |
| Chân 40 | RA10 — Digital I/O RA10 |
| Chân 41 | RA9 — Digital I/O RA9 |
| Chân 42 | RA8 — Digital I/O RA8 |
| Chân 43 | RA7 — Digital I/O RA7 |
| Chân 44 | VDD — Positive supply voltage (2.3V-3.6V) |
| Chân 45 | RA6 — Digital I/O RA6 |
| Chân 46 | RA5 — Digital I/O RA5 |
| Chân 47 | RA4 — Digital I/O RA4 |
| Chân 48 | RA3 — Digital I/O RA3 |
| Chân 49 | RA2 — Digital I/O RA2 |
| Chân 50 | RA1 — Digital I/O RA1 |
| Chân 51 | RA0 — Digital I/O RA0 |
| Chân 52 | VSS — Ground reference |
| Chân 53 | RD15 — Digital I/O RD15 |
| Chân 54 | RD14 — Digital I/O RD14 |
| Chân 55 | RD13 — Digital I/O RD13 |
| Chân 56 | RD12 — Digital I/O RD12 |
| Chân 57 | RD11 — Digital I/O RD11 |
| Chân 58 | RD10 — Digital I/O RD10 |
| Chân 59 | RD9 — Digital I/O RD9 |
| Chân 60 | RD8 — Digital I/O RD8 |
| Chân 61 | RD7 — Digital I/O RD7 |
| Chân 62 | RD6 — Digital I/O RD6 |
| Chân 63 | RD5 — Digital I/O RD5 |
| Chân 64 | RD4 — Digital I/O RD4 |
Ứng dụng tiêu biểu
PIC32MX250F256H-50I/PT phù hợp cho 6 Áp dụngs: Industrial HMI Control Panels, USB Human Interface Devices, Audio Processing with I2S Codecs, Small TFT Graphics Displays, IoT Sensor Hubs, Educational Development Platforms.
Industrial HMI Control Panels
The PIC32MX250F256H-50I/PT fits industrial HMI panels because its 50 MHz M4K core, 256 KB Flash, and PMP module drive small color TFT displays directly without external graphics controllers. The 10-bit ADC reads analog sensor signals such as temperature or pressure while USB OTG handles firmware updates or data logging. Industrial temperature range (-40C to +85C) ensures reliable operation in factory environments with electrical noise and temperature swings. The combination of 5 UART, 4 SPI, and 2 I2C interfaces simplifies integration with motor drivers, sensors, and external DAC devices.
Được đề xuất
USB Human Interface Devices
The PIC32MX250F256H-50I/PT integrates a USB 2.0 Full-Speed OTG controller, making it ideal for USB keyboards, mice, HID controllers, CDC virtual COM ports, and mass storage devices. 256 KB Flash hosts the Microchip USB stack plus application firmware with room for protocol extensions. Peripheral Pin Select (PPS) lets designers route USB and serial signals to convenient PCB locations. Five UART modules enable bridge functionality between USB and legacy RS-232/RS-485 devices in industrial automation gateways.
Được đề xuất
Audio Processing with I2S Codecs
With two I2S modules, the PIC32MX250F256H-50I/PT interfaces directly with stereo audio codecs for embedded audio playback or recording applications. The 50 MHz core performs basic DSP such as equalization and sample-rate conversion in real time. 32 KB SRAM holds audio buffers while the DMA-capable peripherals transfer samples without CPU overhead. Typical uses include digital audio mixers, voice prompt players, hearing-aid prototyping, and IoT edge audio with codec streaming over USB.
Được đề xuất
Small TFT Graphics Displays
The Parallel Master Port (PMP) on the PIC32MX250F256H-50I/PT drives small TFT displays (up to 320x240 QVGA) directly from internal memory without external bus controllers. Dual read/write buffers keep frame refresh running independently of main code execution, freeing the M4K core for application logic. PPS allows flexible pin mapping of PMP data, control, and address lines for compact PCB layouts. This combination suits home appliances, medical instrument panels, and industrial gauge displays with graphical status indication.
Được đề xuất
IoT Sensor Hubs
The PIC32MX250F256H-50I/PT aggregates inputs from multiple sensors in IoT edge nodes, using its 16-channel 10-bit ADC and rich serial interfaces to handle environmental or motion sensing. USB OTG or UART transports aggregated data to a gateway or host system. The PIC32MX family's low-power sleep modes and 32 KB SRAM allow short-term data buffering between uplink windows. Developers can leverage MPLAB Harmony middleware for TCP/IP stacks or LoRaWAN drivers, accelerating connected-device prototyping.
Được đề xuất
Educational Development Platforms
The PIC32MX250F256H-50I/PT powers educational platforms, hobbyist boards, and university microcontroller courses thanks to the mature MPLAB X IDE and Harmony framework support. 256 KB Flash and 50 MHz headroom allow students to run real USB stacks, FreeRTOS, and graphics demos without memory pressure. The 64-pin TQFP package is breadboard-friendly with carrier boards, and PPS allows experimentation with different peripheral pin assignments. The Microchip community, training materials, and reference designs shorten the learning curve for first-time embedded developers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX250F256H-50I/PT — 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 | PIC32MX230F256D-50I/PT | PIC32MX230F256DT-50I/PT | PIC32MX150F256H-50I/PT | PIC32MX170F256D-50I/PT | PIC32MX270F256D-50I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB |
| Maximum CPU Clock | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| USB OTG | Yes (FS) | Yes (FS) | Yes (FS) | Yes (FS) | Yes (FS) | Yes (FS) |
| ADC Resolution | 10-bit | 16-bit | 16-bit | 10-bit | 10-bit | 16-bit |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Mature MPLAB Harmony ecosystem with proven USB stack (vsPIC32MX270F256D-50I/PT)
- PPS flexibility simplifies PCB routing (vsPIC32MX170F256D-50I/PT)
- PMP module drives small TFTs without external controller (vsPIC32MX150F256H-50I/PT)
Ghi chú thiết kế
Power the PIC32MX250F256H-50I/PT from a regulated 3.3V rail and place a 10uF tantalum or ceramic bulk capacitor near each VDD pin pair. Add 100nF ceramic decoupling on every VDD pin as recommended in the PIC32MX1XX/2XX/5XX family datasheet. Estimated: peak current at 50 MHz with USB active can reach ~70 mA; ensure the regulator provides at least 100 mA headroom.
Route the USB D+/D- pair as a 90-ohm differential with matched lengths and a clean ground return. Place the 15k pull-down resistors on D+ and D- close to the connector side as required by USB 2.0 full-speed signaling. Keep crystal traces short and symmetric to the PIC32MX250F256H-50I/PT OSC1/OSC2 pins to minimize EMI and start-up issues.
Avoid leaving unused I/O pins floating - configure them as outputs or inputs with internal pull-ups per the family reference manual. Ensure the AVDD/AVSS analog supply is decoupled separately from the digital rail, especially when using the ADC at 1 Msps. Programming via ICSP requires the PGECx/PGEDx pins; do not reassign them via PPS without keeping ICSP functional.
Thông tin tuân thủ
RoHS compliance per Microchip product page. AEC-Q100 not qualified for this part. Lead-free TQFP package. Halogen-free status not explicitly stated in available data.
