PIC32MX230F256DT-50I/PT - 50MHz 32-bit MCU 256KB Flash USB | Microchip
MPN: PIC32MX230F256DT-50I/PT ✓ Hoạt độngPIC32MX230F256DT-50I/PT Tóm tắt
A 32-bit microcontroller is an integrated computing subsystem built around a wide datapath CPU core, on-chip Flash for program storage, on-chip SRAM for runtime data, and a rich set of peripherals including ADCs, timers, communication controllers, and I/O ports. Within the broader silicon taxonomy, this PIC32MX part belongs to the microcontroller (MCU) class, which itself is a subcategory of microprocessors and embedded computing devices, ultimately falling under semiconductors. Compared with 8-bit and 16-bit MCUs, 32-bit parts execute instructions faster and handle wider data types, which simplifies protocols such as USB, TCP/IP stacks, and digital signal buffering.
Key differentiating specifications of this part include the MIPS32 M4K core with single-cycle multiplication, hardware PMP (Parallel Master Port) for graphics interfaces, Peripheral Pin Select (PPS) for flexible signal routing, three analog comparators with a programmable reference, a 10-bit ADC with up to 1 Msps conversion rate, an on-chip RTCC calendar with 1 ns time-measurement resolution, and CTMU support for mTouch capacitive touch buttons and sliders. The integrated USB 2.0 full-speed transceiver eliminates the need for an external PHY, and the 50 MHz operating frequency keeps instruction execution below 40 mA typical active current at 3.3 V.
The architecture combines the Harvard-style M4K core with five 32-bit timer/counters, two I2S/SPI modules for codec and serial communication, and dual analog comparators, supporting low-power sleep and idle modes. The USB peripheral handles device, host, and On-The-Go roles directly, while the PMP enables direct bus-mastered interface to external parallel memory or graphical displays.
Typical applications include USB peripherals (HID, CDC, MSD), capacitive touch human-machine interfaces (HMIs) using CTMU, low-cost graphical displays driven via PMP, sensor conditioning front ends, and industrial control nodes. The wide operating range (-40 C to +85 C industrial grade) and 2.3 V to 3.6 V VDD tolerance suit battery-powered and industrial environments.
A critical design consideration is the VDD/VUSB decoupling network: place a 0.1 uF ceramic cap adjacent to every VDD pin and a 1 uF to 10 uF bulk capacitor on the USB VBUS rail to meet USB 2.0 full-speed signaling integrity. Use the PPS feature to remap peripherals only after enabling the corresponding IOLOCK bit, otherwise the mapping is lost on reset.
This page synthesizes distributor pricing, drop-in alternatives within the same TQFP-44 footprint, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX230F256DT-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 PIC32MX230F256DT-50I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Timers, USB, Operating Temperature.
PIC32MX230F256D-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX170F256DT-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX130F256D-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX230F256DT-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX250F256DT-50I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX230F256DT-50I/PT Tỷ lệ tối đa & tính chất điện
| Core | MIPS32 M4K 32-bit RISC |
| Maximum CPU Speed | 50 MHz (83 DMIPS) |
| Program Flash | 256 KB |
| SRAM | 16 KB |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 10-bit, up to 1 Msps |
| I/O Pins | Up to 35 |
| Timers | Five 16/32-bit |
| I2S/SPI Modules | 2 |
| Comparators | 3 with programmable reference |
| CTMU | Yes (capacitive touch) |
| RTCC | Real-Time Clock/Calendar with 1 ns resolution |
| PMP | Parallel Master Port (graphics interface) |
| PPS | Peripheral Pin Select |
| Operating Voltage | 2.3 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 44-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX230F256DT-50I/PT
| Chân 1 | MCLR/VPP — Master Clear / Programming voltage input |
| Chân 2 | PGED3/AN0/RB0 — ICSP data / analog input 0 / Port B bit 0 |
| Chân 3 | PGEC3/AN1/RB1 — ICSP clock / analog input 1 / Port B bit 1 |
| Chân 4 | AN2/RB2 — Analog input 2 / Port B bit 2 |
| Chân 5 | AN3/RB3 — Analog input 3 / Port B bit 3 |
| Chân 6 | AN4/RB4 — Analog input 4 / Port B bit 4 |
| Chân 7 | AN5/RB5 — Analog input 5 / Port B bit 5 |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1/RC0 — Crystal oscillator input / Port C bit 0 |
| Chân 10 | OSC2/RC1 — Crystal oscillator output / Port C bit 1 |
| Chân 11 | RC2 — Port C bit 2 |
| Chân 12 | RC3 — Port C bit 3 |
| Chân 13 | RC4 — Port C bit 4 |
| Chân 14 | VDD — Positive supply (2.3 V to 3.6 V) |
| Chân 15 | RB6/PGEC2 — Port B bit 6 / ICSP clock alternate |
| Chân 16 | RB7/PGED2 — Port B bit 7 / ICSP data alternate |
| Chân 17 | RB8 — Port B bit 8 |
| Chân 18 | RB9 — Port B bit 9 |
| Chân 19 | VSS — Ground reference |
| Chân 20 | RA0 — Port A bit 0 |
| Chân 21 | RA1 — Port A bit 1 |
| Chân 22 | RB10 — Port B bit 10 |
| Chân 23 | RB11 — Port B bit 11 |
| Chân 24 | RB12 — Port B bit 12 |
| Chân 25 | RB13 — Port B bit 13 |
| Chân 26 | RB14 — Port B bit 14 |
| Chân 27 | RB15 — Port B bit 15 |
| Chân 28 | VDD — Positive supply (2.3 V to 3.6 V) |
| Chân 29 | D+/RC5 — USB D+ data line / Port C bit 5 |
| Chân 30 | D-/RC6 — USB D- data line / Port C bit 6 |
| Chân 31 | VBUS/RC7 — USB VBUS sense / Port C bit 7 |
| Chân 32 | RC8 — Port C bit 8 |
| Chân 33 | RC9 — Port C bit 9 |
| Chân 34 | VDD — Positive supply (2.3 V to 3.6 V) |
| Chân 35 | VUSB — USB transceiver supply (3.3 V regulated) |
| Chân 36 | RD0 — Port D bit 0 |
| Chân 37 | RD1 — Port D bit 1 |
| Chân 38 | RD2 — Port D bit 2 |
| Chân 39 | RD3 — Port D bit 3 |
| Chân 40 | RD4 — Port D bit 4 |
| Chân 41 | RD5 — Port D bit 5 |
| Chân 42 | RD6 — Port D bit 6 |
| Chân 43 | RD7 — Port D bit 7 |
| Chân 44 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC32MX230F256DT-50I/PT phù hợp cho 6 Áp dụngs: USB HID / CDC / MSD Peripherals, Capacitive Touch HMI (mTouch), Low-Cost Graphical Displays, Industrial Sensor Nodes, Audio Codec Peripherals, Battery-Powered IoT Endpoints.
USB HID / CDC / MSD Peripherals
The PIC32MX230F256DT-50I/PT integrates a full-speed USB 2.0 device/host/OTG controller with on-chip transceiver, eliminating external PHY cost. Its 50 MHz / 83 DMIPS MIPS32 M4K core plus 16 KB SRAM comfortably runs Microchip Harmony USB stacks (HID, CDC, MSD) while 256 KB Flash holds firmware, USB descriptors, and a small file system. A 1.5 kB pull-up on D+ plus ESD protection array on the connector yields a robust bus-powered peripheral PCB.
Được đề xuất
Capacitive Touch HMI (mTouch)
The on-chip CTMU peripheral of the PIC32MX230F256DT-50I/PT provides charge-time measurement with 1 ns resolution, enabling mTouch capacitive touch buttons, sliders, and proximity sensors without external touch ICs. Combined with the 10-bit ADC and three analog comparators, the part scans up to 35 I/O touch channels at low power. The 50 MHz core runs the touch decoding library in real time while leaving headroom for the application MCU loop.
Được đề xuất
Low-Cost Graphical Displays
The PIC32MX230F256DT-50I/PT features an integrated Parallel Master Port (PMP) that drives external graphical LCDs and OLED controllers without external logic, supporting 8-bit and 16-bit data widths with dedicated enable and address lines. At 50 MHz, the PMP sustains single-frame buffer refreshes for QVGA displays while leaving CPU cycles for graphics rendering. Use PPS to remap PMP pins to available I/O and avoid conflict with USB D+/D- on the same package.
Được đề xuất
Industrial Sensor Nodes
The PIC32MX230F256DT-50I/PT industrial temperature grade (-40 C to +85 C), wide 2.3 V to 3.6 V supply, and on-chip 10-bit ADC up to 1 Msps make it suitable for industrial sensor conditioning front ends and 4-20 mA loop-powered nodes. The five 16/32-bit timers handle PWM generation for valve or motor control, while USB-OT/RS for firmware upload. Real-Time Clock Calendar with 1 ns resolution enables precise timestamping of sensor data.
Được đề xuất
Audio Codec Peripherals
The two I2S/SPI modules on the PIC32MX230F256DT-50I/PT connect directly to audio DACs and ADCs with DMA support, enabling simple audio playback and recording peripherals. At 50 MHz the MCU handles 48 kHz / 16-bit audio streams with firmware overhead under 20% CPU load. The 16 KB SRAM buffers multiple audio frames, while USB audio class firmware streams from a host PC when the USB peripheral is enabled.
Được đề xuất
Battery-Powered IoT Endpoints
Low active current (about 25 mA at 50 MHz, 3.3 V) and configurable sleep / idle modes make the PIC32MX230F256DT-50I/PT suitable for battery-powered IoT endpoints running from a 2 x AA or Li-ion cell via an LDO. The RTCC calendar with 1 ns resolution provides accurate time-of-day timestamping for sensor logs, while USB enables firmware updates from a host PC without external programmer. The CTMU also wakes the MCU on touch events.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX230F256DT-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 | PIC32MX170F256DT-50I/PT | PIC32MX130F256D-50I/PT | PIC32MX230F256DT-I/PT | PIC32MX250F256DT-50I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same |
| CPU Speed | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB (+100%) |
| USB | Full-Speed Device/Host/OTG | Full-Speed Device/Host/OTG | No USB | Full-Speed Device/Host/OTG | Full-Speed Device/Host/OTG | Full-Speed Device/Host/OTG |
| PMP (Parallel Master Port) | Yes | Yes | Yes | No | Yes | Yes |
| CTMU Capacitive Touch | Yes | Yes | Yes | Yes | Yes | Yes |
| Unit Price (qty 1) | $6.84 USD | Similar range | Lower (no USB) | Lower (no PMP) | Similar | Slightly higher |
Bảo phân biệt quan trọng
- Integrated USB 2.0 Full-Speed Device/Host/OTG with on-chip PHY (vsPIC32MX170F256DT-50I/PT)
- Parallel Master Port (PMP) for direct graphical display bus mastering (vsPIC32MX130F256D-50I/PT)
- Three analog comparators with programmable reference (vsPIC32MX130F256D-50I/PT)
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor adjacent to every VDD pin (44-TQFP has 3 VDD pins: 14, 28, 34) and a single 1 uF to 10 uF bulk capacitor on the same rail. The VUSB pin requires its own 0.1 uF decoupling cap plus a 10 uF bulk on the USB VBUS line per USB 2.0 full-speed compliance. A ferrite bead between VDD and VUSB is recommended when sourcing VUSB from VDD to suppress digital switching noise from coupling into USB signaling.
Route the USB D+ and D- differential pair as a 90-ohm impedance-matched trace of matched length, with a 27-ohm series termination resistor placed within 4 mm of the MCU pads. Use the on-chip pull-up on D+ (enabled via the UPUEN bit) to signal full-speed attach, and include a USBLC6-2SC6 or equivalent ESD protection array at the connector. Keep digital signals away from the crystal traces to avoid injection of jitter into the 50 MHz PLL reference.
Do not enable Peripheral Pin Select (PPS) remapping until IOLOCK is set, otherwise the pin mapping reverts on reset and the firmware appears to hang. Confirm that the MCLR pin has a 10 kohm pull-up to VDD - leaving it floating prevents startup. When migrating from PIC32MX170F256DT-50I/PT, remember that the USB peripheral pins (D+/D-/VBUS on pins 29-31) become general-purpose I/O and lose USB functionality.
The 44-pin TQFP exposes the thermal pad underneath as VSS; connect it with at least 9 thermal vias (0.3 mm drill, 1 mm pitch) to the ground plane for stable operation at 50 MHz. Keep the analog AVSS/AVDD pins (if used for ADC reference) isolated from noisy digital ground with a ferrite bead or 0-ohm resistor link. Maintain 4x trace-width clearance between high-speed USB traces and analog input traces to preserve ADC SNR.
Thông tin tuân thủ
RoHS compliant per Microchip product declarations. Industrial temperature grade -40 C to +85 C. AEC-Q100 not applicable - this part is not automotive qualified. Halogen-free status should be confirmed with the manufacturer for the latest datasheet revision.