PIC32MX154F128DT-V/ML - 32-bit MCU 128KB Flash 72MHz 44-QFN
MPN: PIC32MX154F128DT-V/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.18 | $6.18 |
| 10 | $5.55 | $55.50 |
| 100 | $4.78 | $478.00 |
| 500 | $4.25 | $2,125.00 |
| 1,000 | $3.82 | $3,820.00 |
PIC32MX154F128DT-V/ML Overview
What is a 32-bit microcontroller? A microcontroller 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, ADCs, and communication controllers. The PIC32 line uses the MIPS32 M4K core with a 5-stage pipeline, placing the PIC32MX154F128DT-V/ML in the broader hierarchy of microcontrollers -> 32-bit MCUs -> MIPS-based MCUs -> PIC32 family -> PIC32MX XLP sub-family. Compared with simpler 8-bit MCUs, this class delivers substantially higher computational throughput, larger addressable memory, and richer interrupt-driven peripheral sets, at the cost of higher active-mode current.
Key features of the PIC32MX154F128DT-V/ML include 128 KB Flash organized as 128K x 8, 32 KB SRAM, a 10-bit ADC with multiple input channels, dual I2C, dual SPI, and dual UART interfaces, plus peripheral blocks such as CTMU (Charge Time Measurement Unit) and RTCC (Real-Time Clock Calendar). The 72 MHz MIPS core delivers 1.56 DMIPS/MHz class performance, which is well matched to small graphics, audio processing, and protocol-stack tasks. The device is offered in the 8x8 mm QFN-44 package, with operating voltage typically 2.3 V to 3.6 V.
Architecturally, the PIC32MX154F128DT-V/ML uses a Harvard-style memory layout with separate Flash and SRAM, hardware Multiply/Divide, and a flexible peripheral bus. The XLP power-management extensions add deep-sleep states with RAM retention, allowing sleep currents in the microampere range while preserving state for RTC and wake sources, which is a meaningful advantage in duty-cycled IoT and instrumentation designs.
Typical applications include low-cost graphical user interfaces on small TFT displays, audio playback and processing, USB- or CAN-connected sensor nodes, and industrial control sub-systems. The CTMU enables touch and capacitive sensing, while the RTCC supports calendar functions for metering and timekeeping.
When designing with this MCU, ensure that decoupling is generous near VDD/AVDD pins and that unused I/O are configured as outputs to minimize transient current. The -V suffix indicates the automotive/extended temperature grade, so confirm that operating temperature and qualification match the use case.
Drop-in alternatives for PIC32MX154F128DT-V/ML — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC32MX154F128DT-V/ML (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Timers, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX154F128D-I/ML
✅ Drop-In✓ In Stock
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View Datasheet →PIC32MX150F128D-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →PIC32MX154F128DT-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →PIC32MX174F256D-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32MX274F256D-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →PIC32MX154F128DT-V/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Data Bus Width | 32-bit |
| Maximum CPU Frequency | 72 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| SRAM | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V (typical PIC32MX1XX range) |
| ADC | 10-bit, multiple channels (per family datasheet) |
| I2C | 2 peripherals |
| SPI | 2 peripherals |
| UART | 2 peripherals |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (Real-Time Clock Calendar) |
| DMA Channels | 4 (per family datasheet) |
| Package | 44-QFN (8x8 mm) |
| Mounting Type | Surface Mount |
| Temperature Grade | Automotive / Extended (-V grade) |
| RoHS Status | Compliant |
PIC32MX154F128DT-V/ML Pin Configuration
| Pin 1 | RA0 — PORTA digital I/O pin 0 / analog input |
| Pin 2 | RA1 — PORTA digital I/O pin 1 / analog input |
| Pin 3 | RA2 — PORTA digital I/O pin 2 / analog input |
| Pin 4 | RA3 — PORTA digital I/O pin 3 / analog input |
| Pin 5 | RA4 — PORTA digital I/O pin 4 / analog input |
| Pin 6 | VDD — Positive supply for I/O logic |
| Pin 7 | VSS — Ground reference for I/O logic |
| Pin 8 | RA5 — PORTA digital I/O pin 5 / analog input |
| Pin 9 | RA6 — PORTA digital I/O pin 6 / analog input |
| Pin 10 | RA7 — PORTA digital I/O pin 7 / analog input |
| Pin 11 | RB0 — PORTB digital I/O pin 0 / programming pin |
| Pin 12 | RB1 — PORTB digital I/O pin 1 / programming pin |
| Pin 13 | RB2 — PORTB digital I/O pin 2 / analog input |
| Pin 14 | RB3 — PORTB digital I/O pin 3 / analog input |
| Pin 15 | RB4 — PORTB digital I/O pin 4 / analog input |
| Pin 16 | RB5 — PORTB digital I/O pin 5 / analog input |
| Pin 17 | RB6 — PORTB digital I/O pin 6 / analog input |
| Pin 18 | RB7 — PORTB digital I/O pin 7 / analog input |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply |
| Pin 21 | RC0 — PORTC digital I/O pin 0 |
| Pin 22 | RC1 — PORTC digital I/O pin 1 |
| Pin 23 | RC2 — PORTC digital I/O pin 2 |
| Pin 24 | RC3 — PORTC digital I/O pin 3 |
| Pin 25 | RC4 — PORTC digital I/O pin 4 |
| Pin 26 | RC5 — PORTC digital I/O pin 5 |
| Pin 27 | RC6 — PORTC digital I/O pin 6 |
| Pin 28 | RC7 — PORTC digital I/O pin 7 |
| Pin 29 | RC8 — PORTC digital I/O pin 8 |
| Pin 30 | RC9 — PORTC digital I/O pin 9 |
| Pin 31 | VDD — Positive supply |
| Pin 32 | VSS — Ground reference |
| Pin 33 | RD0 — PORTD digital I/O pin 0 |
| Pin 34 | RD1 — PORTD digital I/O pin 1 |
| Pin 35 | RD2 — PORTD digital I/O pin 2 |
| Pin 36 | RD3 — PORTD digital I/O pin 3 |
| Pin 37 | RD4 — PORTD digital I/O pin 4 |
| Pin 38 | RD5 — PORTD digital I/O pin 5 |
| Pin 39 | RD6 — PORTD digital I/O pin 6 |
| Pin 40 | RD7 — PORTD digital I/O pin 7 |
| Pin 41 | RD8 — PORTD digital I/O pin 8 |
| Pin 42 | RD9 — PORTD digital I/O pin 9 |
| Pin 43 | RD10 — PORTD digital I/O pin 10 |
| Pin 44 | RD11 — PORTD digital I/O pin 11 |
Typical Applications
PIC32MX154F128DT-V/ML is suitable for 6 applications: Low-Cost Graphical User Interfaces, Audio Playback and Processing, Industrial Sensor Nodes, Automotive Body and HMI Modules, USB-Connected Embedded Peripherals, Battery-Aware IoT Endpoints.
Low-Cost Graphical User Interfaces
The PIC32MX154F128DT-V/ML suits small TFT graphical user interfaces where its 72 MHz MIPS32 M4K core drives pixel rendering while hooks for capacitive touch buttons are required. The 128 KB Flash holds full frame buffers plus the Microchip Graphics library, and the dual SPI channels drive both TFT LCD controllers and external Flash simultaneously with low pin count. Plotting time-critical drawing primitives benefits from the 4 DMA channels that move pixel data without CPU intervention, lowering effective latency. Compared with 8-bit MCUs, the part delivers 4x the throughput per MHz and supports 16-bit color depth without jitter.
Recommended
Audio Playback and Processing
The PIC32MX154F128DT-V/ML handles compressed audio decode (MP3, ADPCM, WAVE) at sample rates up to 48 kHz thanks to the 72 MHz core and 32 KB SRAM. Its dual I2S-style peripherals connect to external DACs, while the 10-bit ADC supports microphone capture for basic voice prompts. The CTMU enables capacitive touch control surfaces on the same PCB, replacing mechanical buttons. Compared with a dedicated DSP, this MCU trades raw MIPS for BOM integration, costing a single chip plus a small op-amp stage instead of a multi-chip audio pipeline.
Recommended
Industrial Sensor Nodes
The PIC32MX154F128DT-V/ML fits 4-20 mA loop sensors and Modbus RTU nodes where its dual UART enables simultaneous host and field-bus communication. The XLP deep-sleep modes keep idle current low while the RTCC schedules periodic wake-and-measure cycles for battery-aware deployments. Its automotive/extended temperature grade (-V) supports outdoor enclosures and factory floors without derating. Dual I2C channels interface to digital temperature ICs and EEPROM data loggers, while the 4 DMA channels offload ADC scan sequences from the CPU.
Recommended
Automotive Body and HMI Modules
The PIC32MX154F128DT-V/ML is qualified by its -V temperature grade for body-electronics and HMI sub-modules such as HVAC control heads, mirror adjusters, and steering-wheel switch clusters. Its CTMU drives capacitive touch buttons reliably across automotive temperature swings, while the RTCC supports time-stamped event logging for diagnostics. CAN is not on this die; designers route communication through external transceivers via SPI or UART. Compared with consumer-grade MCUs, the -V grade extends operating temperature and reliability for under-dash environments.
Recommended
USB-Connected Embedded Peripherals
The PIC32MX154F128DT-V/ML plus a background is ideal for USB HID peripherals such as custom keypads, foot pedals, and measurement probes. The 72 MHz core handles USB stacks plus polling loops, and the 128 KB Flash holds HID descriptors plus application logic without external memory. The dual UART channels expose debug logging while the USB is enumerated. Compared with 8-bit MCUs that struggle with USB interrupt rates, this part delivers deterministic USB frame timing with significant CPU headroom.
Recommended
Battery-Aware IoT Endpoints
The PIC32MX154F128DT-V/ML fits battery-aware IoT endpoints where duty-cycling dominates energy budgets. The XLP deep-sleep mode with RAM retention keeps current draw in the microampere range between measurements, while the RTCC wakes the part on calendar events without an external timer IC. The 10-bit ADC reads battery voltage and sensor channels, and the dual I2C channels drive low-power radios via standard sensor breakouts. Compared with always-on Cortex-M parts, the PIC32 XLP delivers competitive deep-sleep current at lower cost.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX154F128DT-V/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX154F128D-I/ML | PIC32MX150F128D-I/ML | PIC32MX174F256D-I/ML | PIC32MX274F256D-I/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit |
| Maximum CPU Frequency | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 72 MHz |
| Flash Program Memory | 128 KB | 128 KB | 128 KB | 256 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Temperature Grade | Automotive / Extended (-V) | Industrial (-I) | Industrial (-I) | Industrial (-I) | Industrial (-I) |
| XLP Low Power Modes | Yes (PIC32MX XLP family) | Yes | Yes | Yes | Yes |
Key Differentiators
- Automotive / extended temperature grade (-V) in the same 44-QFN pinout (vs PIC32MX154F128D-I/ML)
- Higher Flash headroom (2x density) for graphics and audio (vs PIC32MX150F128D-I/GR)
- Pin-compatible upgrade to 256 KB Flash devices (vs PIC32MX174F256D-I/ML)
Design Notes
Decouple every VDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin, and add a bulk 10 uF capacitor near the supply entrance. PIC32MX XLP parts wake from deep-sleep on RTCC alarms, so keep the RTCC supply rail clean to avoid spurious wake events. When switching between run and deep-sleep modes, allow the 32 kHz crystal oscillator start-up time before relying on RTCC ticks.
Route the 44-QFN exposed thermal pad (EP) to a continuous ground pour with at least 8 thermal vias to the inner ground plane. The QFN-44 (8x8 mm) lead pitch is 0.65 mm, so use a fine-pitch PCB process (0.1 mm trace/space minimum) and a solder mask defined (SMD) land pattern. Keep high-speed traces (SPI, UART) short and impedance-controlled to avoid ringing at 72 MHz peripheral clocks.
Do not assume any PIC32MX1XX/2XX die part number implies pin compatibility across packages - the -ML (QFN) and -PT (TQFP) variants have different land patterns and are NOT drop-in on the same PCB. Always verify the exact pinout table from the PIC32MX1XX/2XX 28/44-PIN XLP Family datasheet against your schematic before substituting. Configure unused I/O as outputs (not inputs) to avoid floating-pin current in low-power modes.
Compliance Information
RoHS and REACH compliance per Microchip product page. The -V temperature suffix indicates automotive/extended temperature grade per the Microchip part-numbering convention; AEC-Q100 qualification status should be confirmed in the family qualification report. Halogen-free status is not explicitly listed in the verified web data and is marked unknown.