PIC32MX220F032BT-50I/SO - 32-bit MCU 32KB Flash 50MHz USB | Microchip
Teilenummer: PIC32MX220F032BT-50I/SO ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $3.36 | $3,36 |
| 10 | $3.02 | $30,20 |
| 100 | $2.69 | $269,00 |
| 500 | $2.36 | $1.180,00 |
| 1.000 | $2.03 | $2.030,00 |
PIC32MX220F032BT-50I/SO Übersicht
A 32-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as timers, communication interfaces and ADCs. PIC32MX220 MCUs are positioned in Microchip's product taxonomy as MCU -> 32-bit microcontroller -> MIPS M4K core -> PIC32MX family -> entry-level connectivity (USB). They target embedded designs that need more code space and arithmetic headroom than 8-bit/16-bit PIC MCUs, while remaining easy to migrate to from existing PIC24/PIC32 code bases.
Key features of the PIC32MX220F032BT-50I/SO include a MIPS32 M4K core with single-cycle multiply and hardware divide, 32 KB Flash / 8 KB SRAM, integrated USB 2.0 full-speed Device/Host/OTG controller, 10-bit ADC with up to 13 channels, three analog comparators, RTCC with calendar mode, CTMU for capacitive touch or time measurement, Peripheral Pin Select (PPS) for flexible pin mapping, and 4-channel hardware DMA. The 28-SOIC package offers generous I/O access in a wide-body footprint suitable for hand-soldered prototypes and industrial modules.
The architecture uses a 5-stage pipeline with separate buses for Flash and RAM, allowing concurrent instruction fetch and data access. The USB module has its own PLL (96 MHz / 48 MHz) decoupled from the system PLL, ensuring jitter-tolerant USB signaling even when the system clock is reconfigured. PPS lets the user remap most digital peripherals to any available I/O pin, simplifying PCB routing for densely populated boards.
Typical applications include USB HID peripherals (keyboards, mice, custom joysticks), USB-to-UART bridges, low-cost data loggers with RTCC timestamping, capacitive touch key panels using CTMU, and industrial sensor interfaces where 32-bit arithmetic is needed for linearization. The wide 28-SOIC package also makes this part well-suited for educational development boards and breadboard-friendly designs.
When designing with this device, ensure that VBUS sensing is wired correctly if USB Device mode is used, and add the recommended 0.1 uF + bulk capacitor network close to the VDD/VSS pins. The PPS feature means firmware must configure pin mapping before peripheral use; the IOL1WAY fuse prevents write-after-write glitches when changing remappable pins at runtime.
This page synthesizes distributor pricing, same-package drop-in alternatives and practical design notes not found in the manufacturer datasheet alone.
Drop-in-Alternativen für PIC32MX220F032BT-50I/SO – 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 PIC32MX220F032BT-50I/SO (gleiche Bauform und Footprint) – abweichend in Package, ADC, USB, DMA Channels, Timers.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC32MX220F032B-50I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC32MX220F032B-I/SO
✅ Drop-In✓ Auf Lager
$2.18 / Stück
Datenblatt ansehen →PIC32MX170F256B-I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC32MX170F256BT-50I/SO
✅ Drop-In✓ Auf Lager
$3.81 / Stück
Datenblatt ansehen →PIC32MX130F256B-50I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC32MX120F032BT-50I/SO
✅ Drop-In✓ Auf Lager
$2.62 / Stück
Datenblatt ansehen →PIC32MX220F032BT-50I/SO Grenzwerte & elektrische Eigenschaften
| Core Architecture | MIPS32 M4K |
| Core Size | 32-bit |
| Maximum CPU Clock | 50 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 8 KB |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 10-bit, up to 13 channels |
| Comparators | 3 analog comparators |
| CTMU | Yes (charge time measurement unit) |
| RTCC | Yes (Real-Time Clock and Calendar) |
| DMA Channels | 4 channels hardware DMA |
| PPS | Peripheral Pin Select |
| UART Modules | 2 |
| I2C Modules | 2 |
| Betriebstemperatur | -40C to +85C (Industrial) |
| Operating Voltage | 2.3 V to 3.6 V |
| Gehäuse | 28-pin SOIC (wide, 7.50 mm body) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
| Packaging Media | Tape & Reel (T suffix) |
PIC32MX220F032BT-50I/SO Pin-Konfiguration
| Pin 1 | RB7/PGEC3 — I/O port B bit 7 / ICSP programming clock |
| Pin 2 | RB8/PGED3 — I/O port B bit 8 / ICSP programming data |
| Pin 3 | RA0 — I/O port A bit 0 / analog input |
| Pin 4 | RA1 — I/O port A bit 1 / analog input |
| Pin 5 | RB0 — I/O port B bit 0 / analog input |
| Pin 6 | RB1 — I/O port B bit 1 / analog input |
| Pin 7 | RB2 — I/O port B bit 2 / analog input |
| Pin 8 | RB3 — I/O port B bit 3 / analog input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB4 — I/O port B bit 4 |
| Pin 11 | RB5 — I/O port B bit 5 |
| Pin 12 | RB6 — I/O port B bit 6 |
| Pin 13 | RB9 — I/O port B bit 9 |
| Pin 14 | RB10 — I/O port B bit 10 |
| Pin 15 | RB11 — I/O port B bit 11 |
| Pin 16 | VSS — Ground reference |
| Pin 17 | VDD — Positive supply 2.3-3.6 V |
| Pin 18 | RB12 — I/O port B bit 12 |
| Pin 19 | RB13 — I/O port B bit 13 |
| Pin 20 | RB14 — I/O port B bit 14 |
| Pin 21 | RB15 — I/O port B bit 15 |
| Pin 22 | RA2 — I/O port A bit 2 / analog input |
| Pin 23 | RA3 — I/O port A bit 3 / analog input |
| Pin 24 | RA4 — I/O port A bit 4 / analog input |
| Pin 25 | RA5 — I/O port A bit 5 / analog input |
| Pin 26 | RA6 — I/O port A bit 6 / analog input |
| Pin 27 | RA7 — I/O port A bit 7 / analog input |
| Pin 28 | VDD — Positive supply 2.3-3.6 V |
Typische Anwendungen
PIC32MX220F032BT-50I/SO ist geeignet für 6 Anwendungs: USB HID Peripherals, USB-to-UART Bridge Dongles, Capacitive Touch Key Panels (CTMU), Industrial Data Loggers with RTCC Timestamping, USB Sensor / Measurement Devices, Educational Development Boards.
USB HID Peripherals
The PIC32MX220F032BT-50I/SO's integrated USB 2.0 full-speed Device/Host/OTG controller with dedicated 48 MHz PLL makes it well suited for USB HID peripherals such as custom keyboards, mice, game controllers and sensor HID devices. The 32 KB Flash is sufficient to host Microchip's MPLAB Harmony USB stack plus typical HID report descriptors and application logic, while 8 KB SRAM handles HID buffers and stack overhead. The 50 MHz MIPS M4K core processes HID reports with negligible latency, and PPS lets designers route the USB D+/D- pins and other HID-specific signals (LEDs, button matrix) to convenient I/O locations without PCB rework.
Empfohlen
USB-to-UART Bridge Dongles
A common use for the PIC32MX220F032BT-50I/SO is firmware-based USB-to-UART bridge dongles for factory programming and debug of legacy equipment. The two integrated UART modules act as the downstream RS-232/RS-485 link, while the USB Device controller enumerates as a CDC virtual COM port. PPS allows the USB D+/D- lines and the UART TX/RX pins to be mapped to the most convenient physical package pins for the dongle housing. At 50 MHz the bridge can run at full USB polling rates with sub-millisecond latency, and the industrial temperature range allows the dongle to operate in factory-floor environments from -40C to +85C.
Empfohlen
Capacitive Touch Key Panels (CTMU)
The PIC32MX220F032BT-50I/SO's built-in CTMU (Charge Time Measurement Unit) is purpose-built for capacitive touch sensing. Together with the 10-bit ADC and up to 13 analog input channels, the CTMU can measure capacitance changes on a copper pad with sub-picofarad resolution, enabling up to 12 independent touch keys on the 28-SOIC package. The MIPS M4K core runs Microchip's CTMU touch libraries efficiently, while 32 KB Flash accommodates both the touch firmware and any communication stack. The 50 MHz CPU ensures touch response time stays below 20 ms even when combined with USB HID reporting.
Empfohlen
Industrial Data Loggers with RTCC Timestamping
The PIC32MX220F032BT-50I/SO's integrated RTCC (Real-Time Clock and Calendar) with battery-domain backup, combined with 8 KB SRAM and 32 KB Flash, makes it well suited for unattended industrial data loggers. The 10-bit ADC samples analog sensor inputs (temperature, pressure, 4-20 mA loop) while the RTCC stamps each sample with calendar date/time. The two UART modules can connect to RS-485 Modbus networks, and the USB interface allows the logger to be queried by a host PC for data download. Industrial temperature grade ensures operation in factory environments, while PPS simplifies I/O routing on densely populated logger PCBs.
Empfohlen
USB Sensor / Measurement Devices
The PIC32MX220F032BT-50I/SO is a strong fit for USB-tethered measurement devices such as digital thermometers, light meters, pH probes, and laboratory sensor interfaces. The integrated USB Full-Speed controller enumerates as a CDC or vendor-class device, while the 10-bit ADC with up to 13 channels directly digitizes sensor outputs. The 32 KB Flash hosts the USB stack plus the application measurement and calibration code, and the 50 MHz MIPS M4K core performs averaging and linearization in real time. PPS allows the sensor analog inputs to be routed away from the USB differential pair on the PCB, reducing noise coupling.
Empfohlen
Educational Development Boards
The PIC32MX220F032BT-50I/SO's wide-body 28-SOIC package is friendly to hand-soldering on perfboard and breadboards, making it ideal for educational development boards and university microcontroller courses. The 50 MHz MIPS M4K core offers students a real 32-bit instruction set (single-cycle multiply, hardware divide) without the complexity of cache coherency. 32 KB Flash and 8 KB SRAM are sufficient for typical coursework projects involving USB, ADC and PWM. Microchip's MPLAB X IDE, XC32 compiler and Curiosity/Explorer starter kits lower the barrier to entry, and the vast PIC32MX family means students can scale code up to larger variants without rewriting.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC32MX220F032BT-50I/SO – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC32MX220F032B-50I/SO | PIC32MX170F256BT-50I/SO | PIC32MX130F256B-50I/SO | PIC32MX120F032BT-50I/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC wide | 28-SOIC wide (same) | 28-SOIC wide (same) | 28-SOIC wide (same) | 28-SOIC wide (same) |
| Brand | Microchip Technology | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) |
| Core / Max Clock | MIPS32 M4K / 50 MHz | MIPS32 M4K / 50 MHz | MIPS32 M4K / 50 MHz | MIPS32 M4K / 50 MHz | MIPS32 M4K / 50 MHz |
| Flash / SRAM | 32 KB / 8 KB | 32 KB / 8 KB | 256 KB / 64 KB | 256 KB / 16 KB | 32 KB / 8 KB |
| USB Controller | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | None (no USB) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| Delivery Media | Tape & Reel | Tube | Tape & Reel | Tube | Tape & Reel |
Wichtigste Unterscheidungsmerkmale
- Same 28-SOIC wide footprint across the entire PIC32MX220/170/130/120 family (vs. PIC32MX120F032BT-50I/SO)
- Tube delivery alternative available in identical die (vs. PIC32MX220F032B-50I/SO)
- Industrial temperature range and CTMU/RTCC integration (vs. STM32F050F4)
Designhinweise
PIC32MX220 devices operate from 2.3 V to 3.6 V. Use a 10 uF bulk + 0.1 uF ceramic decoupling pair within 5 mm of each VDD pin, plus a separate 0.1 uF on the AVDD pin if the ADC is used. The USB module requires the internal voltage regulator to be enabled via firmware (CFGCON.PMDLOCK) before the USB D+/D- pins are functional. For USB Device bus-powered designs, VBUS must be sensed on a designated port pin (PPS-mappable) before the USB stack enumerates.
Route the USB D+ and D- traces as a 90-ohm differential pair, length-matched within 2 mm, and keep them away from switching signals and the DC-DC switching node. The 28-SOIC wide package has long internal bond wires; provide a low-impedance ground plane on the top layer directly under the IC. Place the 12 MHz crystal within 5 mm of the OSC1/OSC2 pins with short traces and a guard ground ring to minimize EMI susceptibility.
When using Peripheral Pin Select (PPS), always configure the pin function BEFORE configuring the peripheral, and unlock the PPS write sequence by writing to OSCCON.IOL1WAY=0 when dynamic remapping is needed. Do not exceed the 50 MHz system clock on the 50 MHz speed-grade parts - the part will not be damaged but code execution timing will be incorrect. The RTCC requires a 32.768 kHz crystal on SOSCO/SOSCI pins for accurate timekeeping; do not share the secondary oscillator pins with PPS-mapped peripherals unless RTCC is disabled.
Estimated: at 50 MHz CPU and 3.3 V VDD, the typical active current is around 25 mA, dissipating ~83 mW of power. The 28-SOIC wide package has a theta_JA of approximately 80 C/W, yielding a junction temperature rise of only ~7 C above ambient - well within the +85C industrial limit. No external heatsink is required. For USB suspend current (USB 2.0 spec <= 2.5 mA), the PIC32MX220 must enter Sleep mode via firmware; simply idling the CPU does not meet the suspend spec.
Compliance-Informationen
Industrial temperature grade -40C to +85C. AEC-Q100 qualification NOT applicable for this industrial part; Microchip offers separate automotive-qualified PIC32MX2xx variants for vehicle applications.
