PIC32MX154F128B-I/MM - 72MHz 32-bit MCU, 128KB Flash | Microchip
Teilenummer: PIC32MX154F128B-I/MM ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $5.21 | $5,21 |
| 10 | $4.78 | $47,80 |
| 100 | $3.96 | $396,00 |
| 500 | $3.42 | $1.710,00 |
| 1.000 | $2.95 | $2.950,00 |
PIC32MX154F128B-I/MM Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. 32-bit MCUs like the PIC32MX extend 8/16-bit predecessors by offering higher clock speeds, larger address spaces, and richer peripherals such as USB, CAN, and high-resolution timers. Within Microchip's portfolio, the PIC32MX sits between the PIC24/dsPIC and the Cortex-M based SAM families, providing MIPS-based execution with PIC's MPLAB ecosystem compatibility.
Key features include a 72MHz core, 1.7V-3.6V single-supply operation, three on-chip analog comparators, a Charge Time Measurement Unit (CTMU) for capacitive touch and time-of-flight measurements, a Real-Time Clock Calendar (RTCC), multiple UART/SPI/I2C peripherals, a 10-bit ADC, and four DMA channels. XLP technology reduces deep-sleep current to microampere levels, enabling battery-powered or energy-harvesting applications. Boundary scan supports manufacturing testability.
Architecturally, the device uses the MIPS M4K 32-bit core with a 5-stage pipeline, single-cycle multiply, hardware multiply-accumulate, and prefetch cache for Flash. Up to eight interrupt priority levels and a configurable vector table support real-time response. The 6x6 mm QFN-S package exposes 21 GPIO plus dedicated peripheral pins, and integrates an exposed pad for thermal dissipation.
Typical applications include consumer HMI with capacitive touch, IoT sensor nodes, portable medical accessories, industrial control front-ends, and low-power graphics/audio peripherals. The CTMU enables touch buttons or sliders without an external touch controller, while the RTCC keeps accurate wall-clock time during sleep for data logging duty cycling.
When designing with this MCU, place a 0.1uF decoupling capacitor on every VDD/VSS pair, route the exposed pad (EP) to a continuous ground plane, and follow MPLAB X IDE configuration bits for oscillator, watchdog, and code protection. The -I grade supports -40C to +85C ambient operation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet.
Drop-in-Alternativen für PIC32MX154F128B-I/MM – 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 PIC32MX154F128B-I/MM (gleiche Bauform und Footprint) – abweichend in Package, ADC, Core Architecture, Operating Temperature, CTMU.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC32MX154F128B-V/MM
✅ Drop-In✓ Auf Lager
$2.21 / Stück
Datenblatt ansehen →PIC32MX170F256B-I/MM
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC32MX130F128B-I/MM
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PIC32MX130F064B-I/MM
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PIC32MX250F128B-I/MM
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PIC32MX150F128B-I/ML
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$3.3 / Stück
Datenblatt ansehen →PIC32MX154F128B-I/MM Grenzwerte & elektrische Eigenschaften
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 72 MHz |
| Program Flash Memory | 128 KB (128K x 8) |
| SRAM | 32 KB |
| Operating Voltage | 2.3 V to 3.6 V (per datasheet family) |
| I/O Pins | 21 (approx.) |
| ADC | 10-bit, up to 16 channels (family spec) |
| Comparators | 3 on-chip analog comparators |
| CTMU | Charge Time Measurement Unit present |
| RTCC | Real-Time Clock Calendar present |
| DMA Channels | 4 |
| Communication Peripherals | UART, SPI, I2C (multiple instances) |
| Gehäuse | 28-QFN-S (6x6 mm) |
| Betriebstemperatur | -40C to +85C (Industrial, -I suffix) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
| XLP (eXtreme Low Power) | Yes |
| Boundary Scan | Yes |
PIC32MX154F128B-I/MM Pin-Konfiguration
| Pin 1 | RA0 — GPIO / analog input / CTMU |
| Pin 2 | RA1 — GPIO / analog input |
| Pin 3 | RB0 — GPIO / PGED1 programming data |
| Pin 4 | RB1 — GPIO / PGEC1 programming clock |
| Pin 5 | RB2 — GPIO / analog input |
| Pin 6 | RB3 — GPIO / analog input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RB4 — GPIO / analog input |
| Pin 9 | RB5 — GPIO / analog input |
| Pin 10 | RB6 — GPIO / ICSPCLK |
| Pin 11 | RB7 — GPIO / ICSPDAT |
| Pin 12 | VDD — Positive supply 2.3V-3.6V |
| Pin 13 | RA2 — GPIO / analog input / CVREF- |
| Pin 14 | RA3 — GPIO / analog input / CVREF+ |
| Pin 15 | RA4 — GPIO / analog input |
| Pin 16 | RA5 — GPIO / analog input |
| Pin 17 | RC0 — GPIO |
| Pin 18 | OSC1 — Crystal oscillator input / CLKI |
| Pin 19 | OSC2 — Crystal oscillator output / CLKO |
| Pin 20 | VSS — Ground reference |
| Pin 21 | RC1 — GPIO |
| Pin 22 | RC2 — GPIO |
| Pin 23 | RC3 — GPIO |
| Pin 24 | RC4 — GPIO |
| Pin 25 | RC5 — GPIO |
| Pin 26 | RC6 — GPIO |
| Pin 27 | RC7 — GPIO |
| Pin 28 | MCLR — Master clear reset (active-low) |
Typische Anwendungen
PIC32MX154F128B-I/MM ist geeignet für 6 Anwendungs: Capacitive Touch HMI Panel, Battery-Powered IoT Sensor Node, Portable Medical Accessory, Industrial Control Front-End, USB HID Device Controller, Audio Peripheral and Tone Generator.
Capacitive Touch HMI Panel
The PIC32MX154F128B-I/MM's integrated Charge Time Measurement Unit (CTMU) measures capacitance in real time to detect finger proximity, eliminating an external touch controller. With 128KB Flash for touch algorithms and debounce libraries, and 32KB SRAM for scan state machines, the device reliably drives up to 12-16 touch electrodes at 72MHz. The QFN's small 6x6 mm footprint suits sealed appliance panels, smart locks, and white-goods front panels. RTCC timestamps each touch event for log storage, while XLP sleep current below 5uA keeps standby battery life multi-year in always-on wall timers.
Empfohlen
Battery-Powered IoT Sensor Node
The PIC32MX154F128B-I/MM's eXtreme Low Power (XLP) technology delivers sub-microampere deep-sleep current with full RAM retention, while the 72MHz MIPS core wakes to perform edge analytics in microseconds. Its 128KB Flash fits MQTT-SN or LoRaWAN stacks with provisioning libraries, and the 32KB SRAM buffers sensor frames before transmit. The QFN 6x6 mm package fits coin-cell sensor pods. Three analog comparators handle zero-crossing wake on a reed switch or PIR, and the RTCC schedules periodic wake for energy-aware duty cycling in remote environmental or asset-tracking deployments.
Empfohlen
Portable Medical Accessory
The PIC32MX154F128B-I/MM suits handheld medical peripherals such as pulse-oximeter dongles, thermometer probes, and glucose-meter add-ons. The 10-bit ADC with multiple channels captures sensor analog signals, and the DMA engine streams samples without CPU overhead for low-noise pulse oximetry. Boundary scan assists production test of safety-critical devices. Industrial -40C to +85C temperature operation survives body-worn or refrigerated storage environments. XLP sleep keeps shelf life long, and the QFN's exposed pad dissipates heat generated during active Bluetooth-paired data transfers, ensuring patient-skin contact surfaces stay cool.
Empfohlen
Industrial Control Front-End
The PIC32MX154F128B-I/MM operates reliably on factory floors where temperatures span -40C to +85C and electrical noise threatens digital logic. Its 72MHz core executes 1-2 PID loops controlling motors, valves, or heaters, while the three analog comparators perform fast overcurrent or zero-crossing detection. UART/SPI/I2C peripherals link to industrial sensors and Modbus gateways; 128KB Flash stores configuration profiles and diagnostic logs. Boundary scan eases in-circuit test on dense control boards, and the QFN's small footprint leaves room for high-voltage isolation barriers within IEC 61800-rated motor-drive enclosures.
Empfohlen
USB HID Device Controller
For HID-class peripherals such as custom keyboards, macro pads, and programmable button controllers, the PIC32MX154F128B-I/MM provides ample Flash (128KB) for USB descriptors, HID report maps, and on-device macro storage in SRAM. Multiple GPIO drive LED feedback rings and scan matrix inputs. The RTCC drives time-stamped logging for productivity analytics. The 28-QFN 6x6 mm package simplifies routing on consumer USB dongles and adapters. Designers needing full-speed USB should consider the PIC32MX250F128B-I/MM upgrade within the same footprint, as that variant integrates a USB 2.0 Full-Speed OTG peripheral.
Empfohlen
Audio Peripheral and Tone Generator
The PIC32MX154F128B-I/MM can act as a stand-alone tone generator, alarm sounder controller, or intercom slave node. Using DMA-driven PWM or SPI to an external DAC, it produces audio sample rates up to 48kHz at 72MHz core speed. Flash stores wavetable instruments, voice prompts, and configuration; 32KB SRAM acts as a ring buffer for streaming audio. CTMU supports touch-panel selection of chime sources. Industrial temperature operation suits outdoor paging speakers and door-entry intercoms, while the small QFN integrates into space-constrained ceiling speaker housings and slim notification appliances.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC32MX154F128B-I/MM – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC32MX154F128B-V/MM | PIC32MX170F256B-I/MM | PIC32MX130F128B-I/MM | PIC32MX250F128B-I/MM | PIC32MX150F128B-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Core / Architecture | 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 Clock | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 50 MHz | 72 MHz |
| Flash Memory | 128 KB | 128 KB | 256 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 32 KB | 32 KB | 64 KB | 16 KB | 32 KB | 32 KB |
| Operating Temperature | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB Peripheral | No | No | Yes (some package options) | No | Yes (USB 2.0 OTG) | No |
| CTMU | Yes | Yes | Yes | Yes | Yes | Yes |
| Boundary Scan | Yes | Yes | Yes | Yes | Yes | Yes |
| Approx. Unit Price (qty-1000) | $2.95 | $3.10 | $3.95 | $2.55 | $3.85 | $2.85 |
Wichtigste Unterscheidungsmerkmale
- Largest memory in PIC32MX15x 28-pin QFN family (vs. PIC32MX130F128B-I/MM)
- Higher memory density than mid-range variants (vs. PIC32MX170F256B-I/MM)
- Industrial temperature with XLP low power (vs. PIC32MX150F128B-I/ML)
- Industrial-grade operating range (vs. PIC32MX154F128B-V/MM)
Designhinweise
Place a 0.1uF ceramic decoupling capacitor on every VDD/VSS pair, located within 3mm of the IC pins and routed with short, wide traces to minimize inductance. For battery-powered designs leveraging XLP sleep modes, add a 10uF bulk capacitor near the VDD pin to support wake-up transients. The internal LDO generates the core 1.8V rail; ensure the 3.6V maximum VDD is never exceeded, especially when powered from a higher-voltage source through an external regulator.
The 28-QFN-S package exposes a large central thermal pad (EP) on the underside that MUST be soldered to a continuous ground plane with thermal vias for heat dissipation. Use at least 9 thermal vias in a 3x3 array under the EP. With the MCU running at full 72MHz and all peripherals active, the device can dissipate up to 200mW. Without proper EP soldering, junction temperature can rise above the 125C maximum, causing thermal shutdown or reduced reliability.
Route the 8MHz crystal traces (OSC1/OSC2) symmetrically with the load capacitors placed within 5mm of the IC pins. Guard the traces with a continuous ground ring to prevent coupling from switching signals. The ICSP pins PGECx/PGEDx should be accessible on the PCB (test pads or header) for in-circuit programming without removing the MCU from the board. Use 4-layer stack-up with dedicated power and ground planes for noise-sensitive analog sampling.
Do not leave the MCLR pin floating; tie it to VDD through a 10kohm pull-up resistor and add a 100nF cap to ground for noise filtering. Ensure the BOR (Brown-Out Reset) configuration bits are enabled to prevent code execution at unsafe voltages. When using CTMU for capacitive touch, calibrate the time-base register per the application note and avoid routing sensitive analog signals adjacent to PWM or switching traces. Configure the JTAG pins as GPIO after programming to free additional I/O for the application.
Group peripheral signals by destination: route all SPI bus traces together with matched lengths for clock and data, and keep I2C pull-ups close to the MCU side. Separate analog input traces from digital switching traces with a ground guard trace. Use the MPLAB Harmony Pin Manager to plan pin assignments early in the schematic phase to avoid late-stage pin conflicts. Place the decoupling capacitors on the same layer as the MCU, directly between the VDD/VSS pairs and the IC.
Compliance-Informationen
RoHS compliant and lead-free per Microchip product page. Industrial temperature grade (-I suffix) is not AEC-Q100 qualified; for automotive designs consider AEC-Q100 qualified members of the PIC32 family.
