PIC32MX150F128B-I/ML
PIC32MX150F128B-I/ML - 32-bit 40MHz 128KB Flash MCU 28-QFN
The Microchip PIC32MX150F128B-I/ML is a 32-bit MIPS32 M4K RISC microcontroller running at 40 MHz with 128 KB of Flash program memory and 32 KB of SRAM, packaged in a 28-pin QFN (6 x 6 mm) with an exposed thermal pad. Operating from 2.3 V to 3.6 V, the part delivers less than 0.5 mA/MHz active current draw, two PIC interfaces (UART/I2C/SPI), plus I2S, USB 2.0 full-speed OTG, and a Parallel Master Port for graphics. The part also features Peripheral Pin Select (PPS) and on-chip temperature measurement, suiting compact low-power embedded designs.
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, Flash program memory, SRAM, and a wide range of peripherals (timers, ADC, communication interfaces, GPIO) on one die. Within the broader taxonomy, the PIC32MX150F128B-I/ML belongs to the microcontroller -> embedded processor -> semiconductor hierarchy. Its MIPS32 M4K core places it in Microchip's PIC32 family, which bridges 8/16-bit PIC MCUs and 32-bit ARM Cortex-M parts by combining 32-bit throughput with familiar PIC development tools such as MPLAB X and Harmony.
Key features include a 10-bit 1 Msps ADC with up to 13 channels, five 16-bit timers plus two 32-bit timers, a 16-bit Input Capture Motor driving sub-microsecond resolution time measurement, four PWM channels with output compare, an integrated temperature sensor, and support for mTouch capacitive touch sensing via the CTMU. Peripheral Pin Select (PPS) lets developers remap digital peripherals onto a wide choice of pins, easing PCB routing. Two I2S/SSP modules simplify audio codec interfacing, while PMP allows direct connection to graphical LCDs.
Architecturally, the device is built on a CMOS process with 5-stage pipeline M4K core, single-cycle hardware MAC for DSP operations, and prefetch cache to mask Flash latency. A wide peripheral set (USB-OTG, CAN, PMP, I2S, UART, SPI, I2C, ADC, comparators) is balanced with 21 general-purpose I/Os. PPS allows digital function reassignment without redesigning the PCB.
Typical applications include industrial control interfaces, low-cost audio playback with I2S codec, USB HID/CDC peripherals, graphical user interfaces with PMP-driven LCDs, capacitive touch panels, and consumer devices. Designers value the small 6x6 mm QFN footprint and integrated USB for space-constrained products. The V/ML temperature grade (-40C to +105C) industrial version fits mains- and battery-powered designs.
When designing with this part, observe the maximum 50 MHz system clock, place 0.1 uF + 10 uF bulk capacitors close to VDD/VSS, and route the exposed thermal pad to a contiguous ground plane to handle brief load surges above ~85 ms. Always reference the latest MPLAB X project and errata DS60001360 prior to firmware release.
This page consolidates distributor stock, drop-in alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet, giving component engineers and procurement a faster, comparable view of the PIC32MX150F128B-I/ML.
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