PIC32MX230F256D-V/ML - 32-Bit MCU 256KB Flash USB 44-VQFN | Microchip
MPN: PIC32MX230F256D-V/ML ✓ פעילPIC32MX230F256D-V/ML סקירה
Background: A 32-bit microcontroller (MCU) is a single-chip processor that integrates a CPU core, Flash program memory, SRAM data memory, and a wide range of analog and digital peripherals into one package, targeting embedded systems that need more compute than 8/16-bit MCUs. The PIC32MX1XX/2XX 28/36/44-pin family sits in the lower-flash tier of Microchip's PIC32 line, optimized for cost-sensitive USB, audio, and graphics applications.
Key features include 50 MHz / 83 DMIPS performance from the MIPS32 M4K core, 256 KB single-cycle Flash, 16 KB SRAM, two I2S/SPI modules for codec and serial communication, PPS for flexible pin assignment, PMP for graphics interfaces, USB 2.0 full-speed device/host/OTG, mTouch capacitive touch support via CTMU, 1 ns high-resolution time measurement, RTCC for real-time clock, and on-chip debugging via 2-wire programming.
The architecture combines a Harvard-style 5-stage pipeline with single-cycle Flash access and a 4-channel DMA controller, optimizing for predictable real-time response in USB, audio, and graphics code paths. Integrated PLLs, internal 8 MHz oscillator, and dual oscillator pins allow flexible system clocking while keeping BOM cost low.
Typical applications include USB audio (USB headset, USB speakerphone, USB microphone), low-cost graphics HMI, capacitive touch key panels (mTouch), industrial control and sensor hubs, automotive body electronics (AEC-Q100 grade), and consumer appliances that need USB connectivity.
A key design tip: PPS allows most digital peripherals to be remapped to multiple I/O pins, simplifying PCB layout but requiring careful review of the pin assignment table in the datasheet to avoid function conflicts.
This page synthesizes distributor pricing, AEC-Q100 drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selecting and sourcing the PIC32MX230F256D-V/ML.
חלופות תחליף ישיר עבור PIC32MX230F256D-V/ML — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC32MX230F256D-V/ML (אותו גורם צורה וטביעת רגל) — שונים ב ADC, Package, Operating Temperature, Timers, USB.
PIC32MX230F256D-50I/ML
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX230F256DT-V/ML
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX230F256DT-I/ML
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX230F256DT-50I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX170F256D-V/ML
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX230F256D-V/ML דירוגים מרביים ומאפיינים חשמליים
| Core | MIPS32 M4K |
| CPU Architecture | 32-bit RISC |
| Maximum CPU Frequency | 50 MHz (83 DMIPS) |
| Flash Memory | 256 KB |
| SRAM | 16 KB |
| מתח אספקה | 2.3 V to 3.6 V |
| Active Current | 0.5 mA/MHz (typical) |
| טמפרטורת פעולה | -40C to +125C (automotive grade -V) |
| מארז | VQFN-44 (8x8 mm) with exposed pad |
| USB | USB 2.0 full-speed device/host/OTG |
| ADC | 10-bit |
| Analog Comparators | 3 |
| CTMU | Yes (mTouch capacitive touch) |
| RTCC | Yes (Real-Time Clock Calendar) |
| PPS | Peripheral Pin Select |
| PMP | Parallel Master Port for graphics |
| I2S/SPI | 2 modules |
| DMA | 4 channels |
| סטטוס RoHS | Compliant |
| AEC-Q100 | Qualified (-V grade) |
תצורת פינים של PIC32MX230F256D-V/ML
| פין 1 | SDA3/RA5 — I2C3 SDA or GPIO RA5 |
| פין 2 | RPB5/RB5 — Remappable I/O RB5 |
| פין 3 | VREF-/CVREF-/RA9 — ADC VREF- or GPIO RA9 |
| פין 4 | VREF+/CVREF+/RA10 — ADC VREF+ or GPIO RA10 |
| פין 5 | RB6/PGEC1 — GPIO RB6 / ICSP clock |
| פין 6 | RB7/PGED1 — GPIO RB7 / ICSP data |
| פין 7 | RC0 — GPIO RC0 |
| פין 8 | RC1 — GPIO RC1 |
| פין 9 | RC2 — GPIO RC2 |
| פין 10 | VSS — Ground |
| פין 11 | VDD — Positive supply (2.3-3.6 V) |
| פין 12 | RB8 — GPIO RB8 |
| פין 13 | RB9 — GPIO RB9 |
| פין 14 | RB10 — GPIO RB10 |
| פין 15 | RB11 — GPIO RB11 |
| פין 16 | VSS — Ground |
| פין 17 | VDD — Positive supply (2.3-3.6 V) |
| פין 18 | RB12 — GPIO RB12 |
| פין 19 | RB13 — GPIO RB13 |
| פין 20 | RB14 — GPIO RB14 |
| פין 21 | RB15 — GPIO RB15 |
| פין 22 | RD0 — GPIO RD0 |
| פין 23 | RD1 — GPIO RD1 |
| פין 24 | RD2 — GPIO RD2 |
| פין 25 | RD3 — GPIO RD3 |
| פין 26 | RD4 — GPIO RD4 |
| פין 27 | RD5 — GPIO RD5 |
| פין 28 | RD6 — GPIO RD6 |
| פין 29 | RD7 — GPIO RD7 |
| פין 30 | RC3 — GPIO RC3 |
| פין 31 | RC4/SDI2 — GPIO RC4 / SPI2 SDI |
| פין 32 | RC5/SDO2 — GPIO RC5 / SPI2 SDO |
| פין 33 | RC6/SCK2 — GPIO RC6 / SPI2 SCK |
| פין 34 | RC7/SS2 — GPIO RC7 / SPI2 SS |
| פין 35 | RC8 — GPIO RC8 |
| פין 36 | RC9 — GPIO RC9 |
| פין 37 | VUSB — USB 3.3V internal regulator output |
| פין 38 | D+/RB3 — USB D+ or GPIO RB3 |
| פין 39 | D-/RB2 — USB D- or GPIO RB2 |
| פין 40 | RB4 — GPIO RB4 |
| פין 41 | RA0 — GPIO RA0 |
| פין 42 | RA1 — GPIO RA1 |
| פין 43 | OSC1/CLKI/RC12 — Crystal oscillator input or GPIO RC12 |
| פין 44 | OSC2/CLKO/RC13 — Crystal oscillator output or GPIO RC13 |
יישומים טיפוסיים
PIC32MX230F256D-V/ML מתאים עבור 6 יישוםs: USB Audio Headsets and Speakerphones, Capacitive Touch Key Panels (mTouch), Low-Cost Graphics HMI, Automotive Body Electronics, Industrial Sensor Hubs, Consumer Appliance USB Connectivity.
USB Audio Headsets and Speakerphones
The PIC32MX230F256D-V/ML is well suited for USB audio peripherals like headsets and speakerphones because it integrates a USB 2.0 full-speed device/host/OTG controller alongside two I2S or SPI modules that interface directly to audio codecs. The 50 MHz MIPS M4K core running at 0.5 mA/MHz typical active current, 256 KB Flash, and 16 KB SRAM are sufficient to host a USB Audio Class 1.0 stack and a lightweight RTOS for codec control. The AEC-Q100 -V grade rating of -40C to +125C also allows this design pattern to be reused inside automotive cabin microphone or hands-free modules without hardware changes, while the exposed thermal pad on the VQFN-44 package provides enough thermal headroom at typical headset power levels.
מומלץ
Capacitive Touch Key Panels (mTouch)
The PIC32MX230F256D-V/ML is a strong fit for mTouch capacitive touch buttons and sliders thanks to the integrated CTMU (Charge Time Measurement Unit), which provides high-resolution 1 ns time measurement for charge-based touch sensing. The 10-bit ADC and three analog comparators can be reused for additional sensor channels beyond the CTMU, allowing mixed touch and analog sensing on the same MCU. PPS allows the touch sensor I/O to be routed to almost any pin, simplifying routing of dense keypad layouts. With 256 KB Flash and 16 KB SRAM, designers can implement complete touch UI state machines plus a host-side USB or UART link to an appliance controller, all in one AEC-Q100 qualified device.
מומלץ
Low-Cost Graphics HMI
The PIC32MX230F256D-V/ML is appropriate for low-cost graphical human-machine interfaces through the integrated PMP (Parallel Master Port), which can directly drive small TFT displays and character LCDs without an external graphics controller. The 50 MHz MIPS core and 4-channel DMA allow smooth framebuffer updates even with graphics libraries like MLA, while the 256 KB Flash holds complete UI assets. The -40C to +125C automotive temperature range also makes the part usable in industrial HMI panels where automotive-grade AEC-Q100 qualification is a plus. The VQFN-44 8x8 mm footprint keeps PCB size minimal for compact appliance or industrial front-panel designs.
מומלץ
Automotive Body Electronics
The PIC32MX230F256D-V/ML fits automotive body electronics modules including climate control panels, mirror controllers, and seat modules thanks to the AEC-Q100 qualification implied by the -V suffix and the -40C to +125C operating temperature range. The USB 2.0 full-speed OTG controller simplifies diagnostic interface implementation, while the CTMU enables capacitive touch keys for solid-state switch panels. The 0.5 mA/MHz active current and integrated RTCC support low-power standby modes critical to automotive quiescent current budgets. Designers migrating from 16-bit PIC MCUs get a 32-bit MIPS core plus USB at comparable cost and footprint.
מומלץ
Industrial Sensor Hubs
The PIC32MX230F256D-V/ML is suitable for industrial sensor hubs that aggregate sensor data over USB or serial and forward it to a host controller. The two I2S/SPI modules can run as SPI masters to multiple sensors concurrently, while the 4-channel DMA offloads high-throughput sensor reads. The 10-bit ADC and three comparators handle mixed analog and digital sensor types, and the RTCC provides timestamped data logging. AEC-Q100 qualification is overkill for general industrial use, but it provides extra reliability margin and supports harsher factory environments where -40C to +125C temperature range is needed.
מומלץ
Consumer Appliance USB Connectivity
The PIC32MX230F256D-V/ML fits consumer appliances such as smart kitchen devices and HVAC controllers that need USB connectivity for firmware updates, debug, or data export. The USB 2.0 full-speed OTG controller handles both device and host roles, supporting USB sticks and serial-to-USB bridges. The 256 KB Flash and 16 KB SRAM are enough for an RTOS plus appliance UI logic, while PMP supports a small display for user interaction. PPS remapping simplifies the PCB layout of appliances where connector placement forces awkward pin assignments, allowing designers to reassign peripheral pins late in the design without re-spinning the board.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC32MX230F256D-V/ML — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC32MX230F256D-50I/ML | PIC32MX230F256DT-V/ML | PIC32MX230F256DT-I/ML | PIC32MX230F256DT-50I/PT | PIC32MX170F256D-V/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-44 (8x8 mm) | VQFN-44 (8x8 mm) - same | VQFN-44 (8x8 mm) - same | VQFN-44 (8x8 mm) - same | TQFP-44 (10x10 mm) | VQFN-44 (8x8 mm) - same |
| 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 |
| Maximum CPU Frequency | 50 MHz (83 DMIPS) | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Operating Temperature | -40C to +125C (AEC-Q100 automotive) | -40C to +85C (industrial) | -40C to +125C (AEC-Q100) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (AEC-Q100) |
| USB | USB 2.0 full-speed device/host/OTG | USB 2.0 full-speed device/host/OTG | USB 2.0 full-speed device/host/OTG | USB 2.0 full-speed device/host/OTG | USB 2.0 full-speed device/host/OTG | USB 2.0 full-speed device/host/OTG |
| I2S/SPI Modules | 2 | 2 | 2 | 2 | 2 | 2 |
מבדילים עיקריים
- AEC-Q100 automotive qualification at no price premium over industrial grade (לעומתPIC32MX230F256D-50I/ML)
- Integrated USB 2.0 full-speed OTG controller (לעומתPIC32MX170F256D-V/ML)
- Compact 8x8 mm VQFN-44 footprint with exposed thermal pad (לעומתPIC32MX230F256DT-50I/PT)
הערות תכנון
The 44-VQFN package has an exposed thermal pad (EP) on the underside that must be soldered to the PCB ground plane to meet the 1.0 W thermal dissipation rating and to maintain AEC-Q100 thermal cycling performance. The recommended PCB layout per the Microchip PIC32MX1XX/2XX datasheet is a thermal via array (typically 9 to 16 vias) connecting the EP to internal ground planes. For high-ambient automotive designs, attach at least 1 square inch of continuous copper pour on both top and bottom layers to keep junction temperature rise below 30C at typical 50 MHz / 3.3 V operating currents.
Place the 0.1 uF and bulk 10 uF decoupling capacitors as close as possible to the VDD pins (pins 11 and 17) and the VSS pins (pins 10 and 16) on the PIC32MX230F256D-V/ML. Per the PIC32MX1XX/2XX datasheet, the USB-specific VUSB pin (pin 37) requires its own 0.47 uF decoupling capacitor placed within 1-2 mm of the pin to stabilize the USB transceiver supply. Trace lengths on USB D+ and D- (pins 38 and 39) must be impedance-controlled to 90 ohms differential and matched within 150 mil to prevent signal integrity issues on full-speed USB.
A common pitfall when designing with the PIC32MX230F256D-V/ML is conflicting pin assignment via PPS - some peripherals share underlying I/O and cannot both be routed to the same pin at the same time. The PPS re-mapping table in the PIC32MX1XX/2XX datasheet must be reviewed carefully when changing peripherals late in design. Another pitfall is failing to configure the CTMU reference and trim registers correctly, which results in mTouch sensor readings that drift with temperature. Always run Microchip's CTMU calibration routine in firmware and store trim values in Flash on first power-up.
מידע על תאימות
RoHS compliant per Microchip product page. REACH compliant. AEC-Q100 qualified per -V automotive grade designation. Lead-free (Pb-free) and halogen-free terminations meeting JEDEC J-STD-020 MSL3 at 260C peak reflow.
