PIC32MX230F256DT-50I/PT - 50MHz 32-bit MCU 256KB Flash USB | Microchip
Référence : PIC32MX230F256DT-50I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.84 | $6,84 |
| 10 | $6.21 | $62,10 |
| 100 | $5.58 | $558,00 |
| 500 | $4.95 | $2 475,00 |
| 1 000 | $4.41 | $4 410,00 |
PIC32MX230F256DT-50I/PT Présentation
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.
Alternatives de remplacement direct pour PIC32MX230F256DT-50I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC32MX230F256DT-50I/PT (même facteur de forme et même empreinte) — différant par Package, ADC, Timers, USB, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX230F256D-50I/PT
✅ Remplacement direct✓ En stock
$4.15 / unité
Voir la fiche technique →PIC32MX170F256DT-50I/PT
✅ Remplacement direct✓ En stock
$3.85 / unité
Voir la fiche technique →PIC32MX130F256D-50I/PT
✅ Remplacement direct✓ En stock
$3.42 / unité
Voir la fiche technique →PIC32MX230F256DT-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX250F256DT-50I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC32MX230F256DT-50I/PT Valeurs maximales et caractéristiques électriques
| 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 |
| Température de fonctionnement | -40 C to +85 C (Industrial) |
| Boîtier | 44-pin TQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Niveau MSL | 3 (168 hours) |
| Statut RoHS | Compliant |
Configuration des broches de PIC32MX230F256DT-50I/PT
| Broche 1 | MCLR/VPP — Master Clear / Programming voltage input |
| Broche 2 | PGED3/AN0/RB0 — ICSP data / analog input 0 / Port B bit 0 |
| Broche 3 | PGEC3/AN1/RB1 — ICSP clock / analog input 1 / Port B bit 1 |
| Broche 4 | AN2/RB2 — Analog input 2 / Port B bit 2 |
| Broche 5 | AN3/RB3 — Analog input 3 / Port B bit 3 |
| Broche 6 | AN4/RB4 — Analog input 4 / Port B bit 4 |
| Broche 7 | AN5/RB5 — Analog input 5 / Port B bit 5 |
| Broche 8 | VSS — Ground reference |
| Broche 9 | OSC1/RC0 — Crystal oscillator input / Port C bit 0 |
| Broche 10 | OSC2/RC1 — Crystal oscillator output / Port C bit 1 |
| Broche 11 | RC2 — Port C bit 2 |
| Broche 12 | RC3 — Port C bit 3 |
| Broche 13 | RC4 — Port C bit 4 |
| Broche 14 | VDD — Positive supply (2.3 V to 3.6 V) |
| Broche 15 | RB6/PGEC2 — Port B bit 6 / ICSP clock alternate |
| Broche 16 | RB7/PGED2 — Port B bit 7 / ICSP data alternate |
| Broche 17 | RB8 — Port B bit 8 |
| Broche 18 | RB9 — Port B bit 9 |
| Broche 19 | VSS — Ground reference |
| Broche 20 | RA0 — Port A bit 0 |
| Broche 21 | RA1 — Port A bit 1 |
| Broche 22 | RB10 — Port B bit 10 |
| Broche 23 | RB11 — Port B bit 11 |
| Broche 24 | RB12 — Port B bit 12 |
| Broche 25 | RB13 — Port B bit 13 |
| Broche 26 | RB14 — Port B bit 14 |
| Broche 27 | RB15 — Port B bit 15 |
| Broche 28 | VDD — Positive supply (2.3 V to 3.6 V) |
| Broche 29 | D+/RC5 — USB D+ data line / Port C bit 5 |
| Broche 30 | D-/RC6 — USB D- data line / Port C bit 6 |
| Broche 31 | VBUS/RC7 — USB VBUS sense / Port C bit 7 |
| Broche 32 | RC8 — Port C bit 8 |
| Broche 33 | RC9 — Port C bit 9 |
| Broche 34 | VDD — Positive supply (2.3 V to 3.6 V) |
| Broche 35 | VUSB — USB transceiver supply (3.3 V regulated) |
| Broche 36 | RD0 — Port D bit 0 |
| Broche 37 | RD1 — Port D bit 1 |
| Broche 38 | RD2 — Port D bit 2 |
| Broche 39 | RD3 — Port D bit 3 |
| Broche 40 | RD4 — Port D bit 4 |
| Broche 41 | RD5 — Port D bit 5 |
| Broche 42 | RD6 — Port D bit 6 |
| Broche 43 | RD7 — Port D bit 7 |
| Broche 44 | VSS — Ground reference |
Applications typiques
PIC32MX230F256DT-50I/PT convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX230F256DT-50I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Integrated USB 2.0 Full-Speed Device/Host/OTG with on-chip PHY (vs PIC32MX170F256DT-50I/PT)
- Parallel Master Port (PMP) for direct graphical display bus mastering (vs PIC32MX130F256D-50I/PT)
- Three analog comparators with programmable reference (vs PIC32MX130F256D-50I/PT)
Notes de conception
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.
Informations de conformité
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.