PIC32MM0256GPM028T-I/ML - 32-bit 25MHz 256KB Flash MCU | Microchip
Teilenummer: PIC32MM0256GPM028T-I/ML ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $3.97 | $3,97 |
| 10 | $3.78 | $37,80 |
| 100 | $3.52 | $352,00 |
| 500 | $3.21 | $1.605,00 |
| 1.000 | $2.95 | $2.950,00 |
PIC32MM0256GPM028T-I/ML Übersicht
A 32-bit microcontroller (MCU) is a single-chip computer that integrates a 32-bit CPU core, program and data memory, plus peripherals such as timers, ADCs, communication interfaces, and GPIOs. Within the broader taxonomy, the PIC32MM belongs to the MCU -> embedded controller -> microcontroller -> 32-bit MCU -> MIPS-based MCU family. The microAptiv core implements the MIPS32r2 instruction set, providing deterministic interrupt response and code density suitable for low-power real-time control. The 256 KB ECC flash improves reliability in industrial and IEC 60730 Class B safety contexts where single-bit memory errors must be detected and corrected at run time.
Key features differentiating this part include a 10-bit 200 ksps ADC with up to 14 analog inputs, two I2C, two SPI, two UART, USB 2.0 full-speed device, and a 4-channel DMA. The eXtreme low power design provides multiple sleep modes down to nanoWatt levels, supporting battery-powered applications. Peripherals are interconnected through a Peripheral Pin Select (PPS) system, allowing flexible remapping of digital functions to physical pins and simplifying PCB routing.
Typical applications include consumer USB HID devices, low-power sensor hubs, IoT edge nodes, home automation controllers, and industrial user interfaces. The 256 KB flash accommodates rich USB stacks (HID, CDC, MSD, vendor classes) and application firmware simultaneously, while the 32 KB SRAM supports USB descriptor buffers plus application RAM. The 28-QFN footprint also makes the device attractive for space-constrained wearable and handheld designs.
When designing with this MCU, provide a stable 3.0-3.6 V VDD with bulk and 0.1 uF decoupling, configure the PPS mapping carefully to avoid conflicts, and follow Microchip's USB hardware design guidelines for the D+/D- trace impedance of 90 ohm differential. The industrial temperature grade (-40C to +85C) suits most indoor and outdoor enclosures.
This page synthesizes distributor pricing, parametric alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in-Alternativen für PIC32MM0256GPM028T-I/ML – 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 PIC32MM0256GPM028T-I/ML (gleiche Bauform und Footprint) – abweichend in ADC, Core Architecture, Package, MSL Level, Operating Temperature.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC32MM0256GPM028-I/ML
✅ Drop-In✓ Auf Lager
$2.38 / Stück
Datenblatt ansehen →PIC32MM0256GPM028T-I/M6
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$2.1 / Stück
Datenblatt ansehen →PIC32MM0256GPM028-E/ML
✅ Drop-In✓ Auf Lager
$2.48 / Stück
Datenblatt ansehen →PIC32MM0128GPM028T-I/ML
✅ Drop-In✓ Auf Lager
$2.18 / Stück
Datenblatt ansehen →PIC32MM0064GPM028T-I/M6
✅ Drop-In✓ Auf Lager
$1.74 / Stück
Datenblatt ansehen →PIC32MM0256GPM028T-I/ML Grenzwerte & elektrische Eigenschaften
| Core Architecture | MIPS32 microAptiv PIC32 32-bit |
| Maximum CPU Speed | 25 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) with ECC |
| SRAM | 32 KB |
| Gehäuse | 28-QFN (6x6 mm) |
| Montageart | Surface Mount |
| Operating Voltage (VDD) | 2.0 V to 3.6 V (USB requires 3.0 V minimum) |
| Betriebstemperatur | -40C to +85C (Industrial) |
| ADC | 10-bit, up to 200 ksps, up to 14 analog inputs |
| Timers | 4 x 16-bit Timer/Counter |
| IC/OC/PWM Channels | 4 |
| USB | USB 2.0 Full-Speed Device |
| Communication Interfaces | 2 x I2C, 2 x SPI, 2 x UART |
| DMA Channels | 4 |
| RoHS-Status | Compliant |
| MSL-Level | MSL3 |
| Peripheral Pin Select (PPS) | Yes |
| Hardware Multiply | 32x32 single-cycle |
PIC32MM0256GPM028T-I/ML Pin-Konfiguration
| Pin 1 | RA0 — General purpose I/O / analog input AN0 |
| Pin 2 | RA1 — General purpose I/O / analog input AN1 |
| Pin 3 | RA2 — General purpose I/O / analog input AN2 |
| Pin 4 | RA3 — General purpose I/O / analog input AN3 |
| Pin 5 | VDD — Positive supply voltage |
| Pin 6 | VSS — Ground reference |
| Pin 7 | RA4 — General purpose I/O / analog input AN4 |
| Pin 8 | RA5 — General purpose I/O / analog input AN5 |
| Pin 9 | RA6 — General purpose I/O / analog input AN6 |
| Pin 10 | RA7 — General purpose I/O / analog input AN7 |
| Pin 11 | RB0 — General purpose I/O / analog input AN8 |
| Pin 12 | RB1 — General purpose I/O / analog input AN9 |
| Pin 13 | RB2 — General purpose I/O / analog input AN10 |
| Pin 14 | RB3 — General purpose I/O / analog input AN11 |
| Pin 15 | RB4 — General purpose I/O / analog input AN12 |
| Pin 16 | RB5 — General purpose I/O / analog input AN13 |
| Pin 17 | RB6 — General purpose I/O |
| Pin 18 | RB7 — General purpose I/O |
| Pin 19 | RC0 — General purpose I/O |
| Pin 20 | RC1 — General purpose I/O |
| Pin 21 | RC2 — General purpose I/O |
| Pin 22 | RC3 — General purpose I/O |
| Pin 23 | RC4 — General purpose I/O / USB VBUS sense |
| Pin 24 | D+ — USB D+ data line |
| Pin 25 | D- — USB D- data line |
| Pin 26 | OSC1 — Crystal oscillator input |
| Pin 27 | OSC2 — Crystal oscillator output |
| Pin 28 | VCAP — Internal voltage regulator output - connect 10 uF capacitor to VSS |
Typische Anwendungen
PIC32MM0256GPM028T-I/ML ist geeignet für 6 Anwendungs: USB HID Peripherals, IoT Edge Sensor Nodes, Consumer White Goods HMI, Industrial Sensor Hubs, USB Charging Cradles and Docks, Low-Power Wearable Devices.
USB HID Peripherals
The PIC32MM0256GPM028T-I/ML fits USB HID peripherals because it integrates a USB 2.0 full-speed device controller with on-chip transceiver, requiring only external 100nF USB VBUS decoupling and optional ESD protection. The 256 KB flash accommodates Microchip's USB HID stack plus application firmware, while 32 KB SRAM handles HID report buffers comfortably. At 25 MHz CPU clock with 25 MIPS throughput, the device processes HID reports at the 1 ms USB polling interval with substantial margin for higher-layer logic such as multi-touch, sensor fusion, or vendor-specific feature reports. eXtreme low power sleep modes allow battery-powered keyboards, mice, and HID-class gaming peripherals to extend battery life beyond 12 months.
Empfohlen
IoT Edge Sensor Nodes
The PIC32MM0256GPM028T-I/ML fits battery-powered IoT edge sensor nodes because its eXtreme low power architecture includes nanoWatt sleep modes that drop quiescent current to sub-microamp levels while retaining RAM and interrupt wakeup. The 14-channel 10-bit ADC reads temperature, humidity, and battery voltage sensors directly without external analog front-end. The 256 KB ECC flash supports TLS-secured MQTT or CoAP clients with over-the-air (OTA) firmware update staging. Integrated two UART and two SPI/I2C peripherals allow direct connection to Wi-Fi modules (ESP32), LoRa transceivers (SX1276), and BLE SoCs (nRF52840) without external glue logic.
Empfohlen
Consumer White Goods HMI
The PIC32MM0256GPM028T-I/ML fits consumer white-goods human-machine interfaces (HMI) because the 25 MHz microAptiv core drives TFT LCD panels through its 4-channel IC/OC/PWM peripherals and PPS-routed SPI up to 25 MHz. The 32 KB SRAM holds double-buffered display frame, while 256 KB ECC flash supports rich touch-and-gesture libraries plus UI assets. The Peripheral Pin Select system lets designers remap keypad matrix scanning, encoder inputs, and buzzer drivers to any digital GPIO, simplifying PCB routing across different product variants (washer vs dryer vs dishwasher).
Empfohlen
Industrial Sensor Hubs
The PIC32MM0256GPM028T-I/ML fits industrial sensor hubs because its 256 KB ECC flash satisfies IEC 60730 Class B safety requirements for household appliances and similar industrial equipment. The 14-channel 10-bit ADC with 200 ksps throughput scans multiple 4-20 mA current loops or 0-10 V analog sensors at 10 ms intervals typical of process control. The four DMA channels offload UART/SPI sensor traffic without CPU intervention, leaving the 25 MIPS core for protocol processing (Modbus RTU, IO-Link master stack, proprietary fieldbus). The -40C to +85C industrial temperature grade handles outdoor and factory-floor enclosures.
Empfohlen
USB Charging Cradles and Docks
The PIC32MM0256GPM028T-I/ML fits USB charging cradles and docking stations because the integrated USB 2.0 full-speed device controller negotiates with USB hosts (PC, laptop, automotive head unit) for CDC, HID, MSD, or vendor-class communication. The 256 KB flash supports multi-protocol auto-detection (Apple CarPlay prep, Android Open Accessory, Microsoft CDC RDR), while 32 KB SRAM holds descriptor buffers and authentication challenges. eXtreme low power modes allow the cradle to enter deep sleep while idle and wake on USB VBUS attach through the on-chip VBUS sense comparator, eliminating external power-management ICs.
Empfohlen
Low-Power Wearable Devices
The PIC32MM0256GPM028T-I/ML fits wearable fitness and health devices because the eXtreme low power architecture reduces active current to 150 uA/MHz and sleep current to sub-microamp levels, supporting multi-day battery life on small Li-Po cells. The 28-QFN (6x6 mm) package fits wristbands and clip-on form factors. The 14-channel ADC reads optical heart-rate sensors, temperature, and motion-battery voltage. PPS allows sensor I2C and SPI buses to be remapped away from pinout conflicts with the USB D+/D- pair used for charging and synchronization.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC32MM0256GPM028T-I/ML – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC32MM0256GPM028-I/ML | PIC32MM0256GPM028T-I/M6 | PIC32MM0256GPM028-E/ML | PIC32MM0128GPM028T-I/ML | PIC32MM0064GPM028T-I/M6 |
|---|---|---|---|---|---|---|
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB ECC | 256 KB ECC | 256 KB ECC | 256 KB ECC | 128 KB (-50%) | 64 KB (-75%) |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| CPU Speed | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| USB 2.0 | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tube | Tape & Reel | Tape & Reel |
| Approx. Unit Price (qty 100) | $3.52 | ~$3.52 | ~$3.52 | ~$3.85 | ~$3.20 | ~$2.85 |
Wichtigste Unterscheidungsmerkmale
- eXtreme low power architecture with nanoWatt sleep modes (vs. PIC32MX250F128B)
- 256 KB ECC flash at 28-QFN density (vs. PIC32MM0128GPM028T-I/ML)
- Industrial -40C to +85C with ECC safety (vs. PIC32MM0256GPM028-E/ML)
Designhinweise
Decouple each VDD pin with a 0.1 uF ceramic capacitor placed within 3 mm of the pin, and add a 4.7 uF bulk capacitor near the regulator output. The on-chip voltage regulator requires a 10 uF X5R/X7R low-ESR capacitor on the VCAP pin to VSS. When USB is active, VDDIO must remain above 3.0 V to meet USB 2.0 full-speed signaling requirements; below 3.0 V the USB transceiver may violate the VOH minimum.
The 28-QFN (6x6 mm) has an exposed thermal pad that MUST be soldered to a copper land on the PCB for both thermal dissipation and electrical grounding. Connect the e-pad to VSS through a low-impedance via array (typically 4-9 vias to internal VSS plane). The USB D+ and D- traces must be routed as a 90 ohm differential pair with characteristic impedance matching and length-matched within 150 mil to comply with USB 2.0 full-speed signal integrity.
When migrating from PIC32MX to PIC32MM, note that the PPS (Peripheral Pin Select) system remaps most digital peripherals, so existing PIC32MX pin assignments do not carry over directly. Configure PPS explicitly in the device configuration code or peripheral libraries. Also note that PIC32MM uses a different interrupt controller structure - read the family reference manual section on interrupts before porting code. Do not exceed 3.6 V on any I/O pin or risk latch-up.
Place the 32.768 kHz crystal or external oscillator close to OSC1/OSC2 pins with short traces and ground guard ring to minimize EMI coupling. If the internal 8 MHz oscillator is used (default for low power), the OSC pins can be left floating. The USB VBUS sense input has a high-impedance divider that must remain isolated from high-noise digital traces - route it as a dedicated analog input.
Compliance-Informationen
RoHS and REACH compliant per Microchip product page. Halogen-free per Microchip environmental compliance statement. The -E/ML extended temperature variant is the automotive-grade option for underhood applications; this -I/ML industrial variant is not AEC-Q100 qualified.
