PIC32MX230F256BT-50I/SS - 50MHz 32-bit MCU 256KB Flash | Microchip
Teilenummer: PIC32MX230F256BT-50I/SS ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $5.78 | $5,78 |
| 10 | $5.2 | $52,00 |
| 100 | $4.62 | $462,00 |
| 500 | $4.13 | $2.065,00 |
| 1.000 | $3.65 | $3.650,00 |
| 3.000 | $3.21 | $9.630,00 |
PIC32MX230F256BT-50I/SS Übersicht
Background knowledge: a microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces (ADC, timers, communication ports). 32-bit MCUs extend 8/16-bit MCUs with higher computational throughput, larger address spaces, and richer peripheral sets; they sit in the broader taxonomy of microcontrollers -> embedded processors -> semiconductor ICs. The PIC32 family from Microchip uses the MIPS M4K core, providing deterministic performance and a mature toolchain (MPLAB X IDE, XC32 compiler).
Key features: 50 MHz core / 83 DMIPS performance, 256 KB Flash program memory with ECC option, 16 KB SRAM data memory, USB 2.0 Full-Speed Device/Host/OTG, up to 21 available I/O pins, 10-bit 1 Msps ADC with up to 13 channels, three analog comparators, CTMU for touch and capacitive sensing, RTCC with calendar mode, and four 16-bit timers. The device supports 2.3V to 3.6V single-supply operation, industrial -40C to +85C temperature range, and is supplied in industrial-grade (-I) and Tape & Reel packaging.
Architecture: the MIPS32 M4K core implements the MIPS32 Release 2 instruction set with hardware multiply/divide and a 5-stage pipeline. The PIC32MX2XX integrates 256 KB single-cycle Flash with prefetch cache and 16 KB SRAM with separate bus paths, allowing simultaneous Flash fetch and SRAM access. Peripheral DMA maps directly to RAM, and the bus matrix supports concurrent CPU and DMA traffic without starving either master. The CTMU block provides a constant-current source used for capacitive touch, temperature sensing, and time-of-flight measurements.
Typical applications: USB HID peripherals (HID mice/keyboards, CDC virtual COM ports), capacitive touch key panels via CTMU, industrial sensor data acquisition with 10-bit ADC and RTCC timestamping, low-cost graphics and audio playback for embedded UI, and small home-automation controllers. The 28-SSOP footprint targets compact, hand-solder-friendly designs.
Design considerations: the 28-pin package limits available I/O; map pin functions carefully against USB D+/D-, oscillator, and ICSP pins. Place a 1uF decoupling cap adjacent to each VDD pin and ensure the USB D+/D- traces are 90 ohm differential and length-matched.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone manufacturer datasheet, helping engineers shorten BOM validation and qualification cycles.
Drop-in-Alternativen für PIC32MX230F256BT-50I/SS – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC32MX230F256BT-50I/SS (gleiche Bauform und Footprint) – abweichend in ADC, Operating Temperature, Package, Timers, USB.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC32MX230F256BT-I/SS
✅ Drop-In✓ Auf Lager
$2.4 / Stück
Datenblatt ansehen →PIC32MX230F256B-50I/SS
✅ Drop-In✓ Auf Lager
$3.62 / Stück
Datenblatt ansehen →PIC32MX230F256B-I/ML
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$2.69 / Stück
Datenblatt ansehen →PIC32MX230F256B-50I/SP
✅ Drop-In✓ Auf Lager
$4 / Stück
Datenblatt ansehen →PIC32MX170F256BT-50I/SS
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC32MX150F256BT-50I/SS
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC32MX230F256BT-50I/SS Grenzwerte & elektrische Eigenschaften
| Core Processor | MIPS32 M4K |
| Core Size | 32-Bit Single-Core |
| Maximum CPU Clock | 50 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM Size | 16 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Betriebstemperatur | -40C to +85C (Industrial) |
| Gehäuse / Bauform | 28-SSOP (5.30 mm) |
| Number of I/O Pins | 21 |
| ADC | 10-bit, up to 13 channels |
| Comparators | 3 |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| Timers | 4 x 16-bit |
| CTMU | Yes |
| RTCC | Yes |
| DMA Channels | 8 |
| Montageart | Surface Mount |
| Lead Free / RoHS | Lead Free / RoHS Compliant |
| Series | PIC32MX |
PIC32MX230F256BT-50I/SS Pin-Konfiguration
| Pin 1 | RA0 — Port A bit 0 / AN0 / CTMU |
| Pin 2 | RA1 — Port A bit 1 / AN1 / CTMU |
| Pin 3 | RB0 — Port B bit 0 / AN2 |
| Pin 4 | RB1 — Port B bit 1 / AN3 |
| Pin 5 | RB2 — Port B bit 2 / AN4 |
| Pin 6 | RB3 — Port B bit 3 / AN5 |
| Pin 7 | VDD — Positive supply voltage |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RB4 — Port B bit 4 / AN6 |
| Pin 10 | RB5 — Port B bit 5 / AN7 |
| Pin 11 | RB6 — Port B bit 6 / PGEC1 |
| Pin 12 | RB7 — Port B bit 7 / PGED1 |
| Pin 13 | RB8 — Port B bit 8 |
| Pin 14 | RB9 — Port B bit 9 |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply voltage |
| Pin 17 | RC0 — Port C bit 0 |
| Pin 18 | RC1 — Port C bit 1 |
| Pin 19 | RC2 — Port C bit 2 |
| Pin 20 | RC3 — Port C bit 3 |
| Pin 21 | RC4 — Port C bit 4 |
| Pin 22 | RA2 — Port A bit 2 / USB VBUS sense |
| Pin 23 | RA3 — Port A bit 3 / USB D+ |
| Pin 24 | RA4 — Port A bit 4 / USB D- |
| Pin 25 | RA5 — Port A bit 5 |
| Pin 26 | OSC1 — Crystal oscillator input |
| Pin 27 | OSC2 — Crystal oscillator output |
| Pin 28 | MCLR — Master clear / reset input |
Typische Anwendungen
PIC32MX230F256BT-50I/SS ist geeignet für 6 Anwendungs: USB HID Peripherals (Keyboard, Mouse, Game Controller), Capacitive Touch Key Panels, Industrial Sensor Data Acquisition Modules, USB-to-UART / USB-to-I2C Bridge Dongles, Low-Cost Graphics / Audio Embedded UI, Small Home-Automation Controllers.
USB HID Peripherals (Keyboard, Mouse, Game Controller)
The PIC32MX230F256BT-50I/SS is ideally suited for USB Human Interface Device peripherals because it integrates a USB 2.0 Full-Speed controller with on-chip transceiver and supports the HID class natively. With 50 MHz MIPS M4K core and 256 KB Flash, the device easily fits HID report descriptors, debounce logic, and multi-button scan matrices. In a typical keyboard implementation, the MCU scans a 16x8 key matrix via 12 GPIO pins and reports via USB HID at 1 kHz polling; the 10-bit ADC is reserved for analog features like backlight control. Pin 23/24 carry USB D+/D- with mandatory 90 ohm differential routing; place a 15 kohm pull-down on D+ and ESD protection array on the connector pins for production robustness.
Empfohlen
Capacitive Touch Key Panels
The PIC32MX230F256BT-50I/SS excels at capacitive touch panels because of its on-chip CTMU (Charge Time Measurement Unit) and 10-bit ADC with up to 13 input channels. A 12-button touch keypad can be implemented using the CTMU driving each electrode through a current source and timing the discharge via the ADC, achieving sub-1 mm position resolution and proximity wake-up. The 256 KB Flash stores the Microchip mTouch library and calibration tables, while the 16 KB SRAM handles per-channel moving-average filtering. Typical CTMU scan time is 200us per channel, allowing 60 Hz panel refresh. Industrial design benefits from the -40C to +85C range and the small 28-SSOP footprint that fits behind glass front panels.
Empfohlen
Industrial Sensor Data Acquisition Modules
The PIC32MX230F256BT-50I/SS serves as a robust sensor data acquisition controller because it combines a 10-bit 1 Msps ADC with DMA-driven sampling, real-time clock calendar (RTCC) for timestamping, and USB for data upload to a host PC. In a typical 8-channel thermocouple or 4-20 mA current loop module, the MCU acquires at 100 Hz per channel, time-stamps with RTCC, and pushes data over USB CDC virtual COM at 921600 baud. The 256 KB Flash stores linearization lookup tables and Modbus RTU protocol stacks, while the 16 KB SRAM buffers 256 samples per channel. Industrial-grade -40C to +85C operation and on-chip comparators allow windowed alarm generation without CPU intervention.
Empfohlen
USB-to-UART / USB-to-I2C Bridge Dongles
The PIC32MX230F256BT-50I/SS is a strong choice for USB bridge dongles because its USB Device controller plus three UARTs, two I2C, and two SPI peripherals let a single MCU implement a multi-protocol USB-to-serial bridge. Firmware implements USB CDC for virtual COM port on the host side, with UART baud rates up to 921600 and I2C at 400 kHz fast mode. The 256 KB Flash accommodates the full Microchip USB stack plus protocol multiplexer logic, while 16 KB SRAM handles 4 KB CDC-ACM buffers and 2 KB per-protocol ring buffers. Industrial temperature rating and the 28-SSOP form factor make this part a cost-effective replacement for commercial CP2102 or FT232R designs where custom protocols are needed.
Empfohlen
Low-Cost Graphics / Audio Embedded UI
The PIC32MX230F256BT-50I/SS powers small embedded user-interface boards because its 50 MHz MIPS M4K core delivers sufficient MIPS for monochrome LCD graphics via PMP or SPI, plus PWM audio output through Output Compare modules. Typical implementations drive a 128x64 graphical LCD over SPI at 4 MHz, refresh the screen at 30 Hz, and play 8 kHz 8-bit audio samples from Flash or external SPI NOR. The CTMU and ADC support slider/touch inputs, and the USB port enables firmware updates and content loading. The 256 KB Flash holds Microchip's Graphics Library plus localized menus; 16 KB SRAM supports a 1 KB display framebuffer at monochrome 128x64. The 28-SSOP keeps the BOM cost low for appliance-style products.
Empfohlen
Small Home-Automation Controllers
The PIC32MX230F256BT-50I/SS fits compact home-automation controllers because it integrates USB for Wi-Fi/BLE module bridging, RTCC for time-of-day scheduling, multiple timers for relay/light control, and an industrial temperature range. A typical implementation drives 4 to 8 relay outputs via GPIO and reads digital inputs for door/window sensors, with a UART-connected ESP8266 or RN4870 handling the wireless link. The 256 KB Flash stores the full application logic plus OTA bootloader, while the 16 KB SRAM supports MQTT message buffers and relay state debounce. CTMU allows touch-button front panels, and comparators handle analog sensor inputs. The 28-SSOP footprint fits inside standard European wall-box enclosures.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC32MX230F256BT-50I/SS – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC32MX230F256BT-I/SS | PIC32MX230F256B-50I/SS | PIC32MX230F256B-I/ML | PIC32MX230F256B-50I/SP | PIC32MX170F256BT-50I/SS | PIC32MX150F256BT-50I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-QFN - different footprint, not drop-in | 28-SPDIP - different footprint, not drop-in | 28-SSOP - same | 28-SSOP - same |
| Maximum CPU Clock | 50 MHz | 40 MHz (-20%) | 50 MHz (same) | 40 MHz (-20%) | 50 MHz (same) | 50 MHz (same) | 50 MHz (same) |
| Flash | 256 KB | 256 KB (same) | 256 KB (same) | 256 KB (same) | 256 KB (same) | 256 KB (same) | 256 KB (same) |
| RAM | 16 KB | 16 KB (same) | 16 KB (same) | 16 KB (same) | 16 KB (same) | 16 KB (same) | 16 KB (same) |
| USB 2.0 Full-Speed | Yes | Yes (same) | Yes (same) | Yes (same) | Yes (same) | Yes (same) | No (-30% feature) |
| CTMU (Capacitive Touch) | Yes | Yes (same) | Yes (same) | Yes (same) | Yes (same) | No (-30% feature) | Yes (same) |
| Operating Voltage | 2.3V to 3.6V | 2.3V to 3.6V (same) | 2.3V to 3.6V (same) | 2.3V to 3.6V (same) | 2.3V to 3.6V (same) | 2.3V to 3.6V (same) | 2.3V to 3.6V (same) |
| Operating Temperature | -40C to +85C | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) |
Wichtigste Unterscheidungsmerkmale
- 50 MHz speed grade (-50I) versus 40 MHz (-I) in identical 28-SSOP footprint (vs. PIC32MX230F256BT-I/SS)
- Full USB 2.0 Full-Speed with on-chip transceiver (no external PHY) (vs. PIC32MX150F256BT-50I/SS)
- CTMU capacitive touch plus USB in a single 28-SSOP package (vs. PIC32MX170F256BT-50I/SS)
Designhinweise
PIC32MX230F256BT-50I/SS operates from 2.3V to 3.6V and requires careful decoupling: place a 100 nF ceramic + 10 uF bulk capacitor within 5 mm of each VDD pin (pin 7 and pin 16). For USB applications, add a 10 uF tantalum or polymer bulk capacitor near the VBUS pin. Core current at 50 MHz with all peripherals active reaches ~30 mA, so total board supply should budget 50 mA peak. Estimated: at 3.3V and 30 mA, core dissipation is ~100 mW, well within SSOP thermal limits of 70 C/W theta-JA. Use a ferrite bead on analog VDD rails if ADC precision is critical.
USB D+ (pin 23) and D- (pin 24) traces must be routed as a 90 ohm differential pair with length matching within 2 mm. Keep the USB traces away from switching nodes and clock signals, and place the USB connector within 25 mm of the MCU. Place a 15 kohm pull-down resistor on D+ for full-speed device mode detection; a 1.5 kohm pull-up on D+ enables device mode, while a 15 kohm pull-down on D- enables host mode. The CTMU analog inputs should be guarded with ground rings if long traces are needed.
Do not leave the MCLR pin floating - tie it to VDD via a 10 kohm pull-up and place a 100 nF capacitor to ground for noise immunity. The OSC1/OSC2 pins require a 8 MHz to 32 MHz crystal with appropriate load capacitors per crystal manufacturer datasheet; using internal FRC without calibration loses USB clock accuracy. CTMU calibration must be re-run per board; temperature and supply voltage drift affect touch thresholds. The PGEC1/PGED1 pins are required for ICSP - do not reassign them to general I/O without disabling debug.
Compliance-Informationen
RoHS compliant per Microchip product page and DigiKey listing. Lead-free (Pb-free) reflow compatible per JEDEC J-STD-020. AEC-Q100 not applicable - industrial grade only. Conflict minerals compliant per Microchip CMRT.
