PIC32MX150F128D-I/PT - 32-bit MCU 128KB Flash 40MHz | Microchip
MPN: PIC32MX150F128D-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.32 | $5.32 |
| 10 | $4.79 | $47.90 |
| 100 | $4.04 | $404.00 |
| 500 | $3.46 | $1,730.00 |
| 1,000 | $2.88 | $2,880.00 |
| 3,000 | $2.51 | $7,530.00 |
PIC32MX150F128D-I/PT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of peripherals. The PIC32MX1XX/2XX family specifically targets cost-sensitive 32-bit applications where MIPS performance, USB connectivity, and audio/graphics peripherals are required. It sits within the broader hierarchy: microcontroller -> embedded processor -> semiconductor, competing directly with ARM Cortex-M0/M3 based MCUs from STMicroelectronics and NXP.
Key features include two I2S/SPI modules for codec and serial audio interfaces, a Parallel Master Port (PMP) for graphics and external memory, Peripheral Pin Select (PPS) for flexible signal routing, a 10-bit 1 Msps ADC with up to 13 channels, and a Charge Time Measurement Unit (CTMU) supporting mTouch capacitive touch and high-resolution 1 ns time measurement. The device also integrates full-speed USB 2.0 (device/host/OTG), five 16-bit timers, two UART/I2C/SPI peripherals, and an on-chip temperature sensor for thermal management.
Architecturally, the PIC32MX150F128D uses a Harvard-style 5-stage pipeline M4K core with single-cycle multiply and hardware divide, achieving 1.56 DMIPS/MHz. The Flash controller supports pre-fetch buffering for zero-wait-state execution up to 40 MHz, while the integrated DMA controller offloads data movement between peripherals and memory. This combination delivers deterministic real-time response suitable for USB audio, control panels, and graphics HMI applications.
Typical applications include USB audio DAC interfaces, low-cost graphics HMIs with PMP-driven LCDs, capacitive touch user interfaces, industrial sensor hubs with USB connectivity, consumer medical devices, and educational development platforms. Its combination of USB, audio I2S, and graphics PMP makes it well suited for multimedia-rich embedded products.
When designing with this MCU, allocate the 44-pin budget carefully: the USB pins require external 48 MHz clock or crystal and 27% accuracy internal PLL, and PPS reassignment must respect peripheral availability per pin. Use MPLAB Harmony or MCC for code generation to avoid timing errors in USB enumeration.
This page synthesizes distributor pricing, drop-in alternatives in the same TQFP-44 package, and practical design notes not found in the standalone manufacturer datasheet, providing engineering context for rapid design-in.
Drop-in alternatives for PIC32MX150F128D-I/PT — 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 PIC32MX150F128D-I/PT (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Timers, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX250F128D-I/PT
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →PIC32MX130F256D-I/PT
✅ Drop-In✓ In Stock
$3.3 / Unit
View Datasheet →PIC32MX230F256D-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX120F064D-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX150F128DT-I/PT
✅ Drop-In✓ In Stock
$4.35 / Unit
View Datasheet →PIC32MX150F128D-V/PT
✅ Drop-In✓ In Stock
$3.72 / Unit
View Datasheet →PIC32MX150F128D-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX150F128D-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Speed | 40 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| I/O Pins | 21 |
| Package Type | 44-TQFP (10x10 mm), PT suffix |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 10-bit, up to 1 Msps, up to 13 channels |
| Timers | Five 16-bit general purpose |
| Communication Peripherals | 2x I2S/SPI, 2x UART, 2x I2C |
| Graphics Interface | Parallel Master Port (PMP) |
| Touch Sensing | CTMU mTouch capacitive, 1 ns time resolution |
| DMA Channels | 4 channels |
| Operating Temperature Range | -40 C to +85 C (Industrial -I) |
| Active Current Consumption | <0.5 mA/MHz typical |
| Pin Pitch | 0.80 mm (TQFP-44) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC32MX150F128D-I/PT Pin Configuration
| Pin 1 | RA0 — General purpose I/O / analog input AN0 / PWM OC1 |
| Pin 2 | RA1 — General purpose I/O / analog input AN1 / VREF- |
| Pin 3 | RA2 — General purpose I/O / analog input AN2 |
| Pin 4 | RA3 — General purpose I/O / analog input AN3 |
| Pin 5 | RA4 — General purpose I/O / analog input AN4 |
| Pin 6 | VDD — Positive supply for I/O and core |
| Pin 7 | VSS — Ground reference |
| 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 | VSS — Ground reference |
| Pin 12 | RB0 — General purpose I/O / programming pin PGEC1 |
| Pin 13 | RB1 — General purpose I/O / programming pin PGED1 |
| Pin 14 | RB2 — General purpose I/O / USB ID |
| Pin 15 | RB3 — General purpose I/O / USB D- |
| Pin 16 | RB4 — General purpose I/O / USB D+ |
| Pin 17 | RB5 — General purpose I/O |
| Pin 18 | RB6 — General purpose I/O / ICSPCLK |
| Pin 19 | RB7 — General purpose I/O / ICSPDAT |
| Pin 20 | VUSB — USB voltage supply for transceiver |
| Pin 21 | VBUS — USB bus voltage detect |
| Pin 22 | RC1 — General purpose I/O |
| Pin 23 | RC2 — General purpose I/O |
| Pin 24 | RC3 — General purpose I/O |
| Pin 25 | RC4 — General purpose I/O |
| Pin 26 | VDD — Positive supply for I/O and core |
| Pin 27 | VSS — Ground reference |
| Pin 28 | RC5 — General purpose I/O |
| Pin 29 | RC6 — General purpose I/O |
| Pin 30 | RC7 — General purpose I/O |
| Pin 31 | RC8 — General purpose I/O |
| Pin 32 | RC9 — General purpose I/O |
| Pin 33 | RD0 — General purpose I/O / PMP data |
| Pin 34 | RD1 — General purpose I/O / PMP data |
| Pin 35 | RD2 — General purpose I/O / PMP data |
| Pin 36 | RD3 — General purpose I/O / PMP data |
| Pin 37 | RD4 — General purpose I/O / PMP data |
| Pin 38 | RD5 — General purpose I/O / PMP data |
| Pin 39 | RD6 — General purpose I/O / PMP data |
| Pin 40 | RD7 — General purpose I/O / PMP data |
| Pin 41 | VDD — Positive supply for I/O and core |
| Pin 42 | OSC1 — Crystal oscillator input |
| Pin 43 | OSC2 — Crystal oscillator output |
| Pin 44 | VSS — Ground reference |
Typical Applications
PIC32MX150F128D-I/PT is suitable for 6 applications: USB Audio DAC Interface, Graphics HMI with PMP LCD, Capacitive Touch User Interface, Industrial Sensor Hub with USB, Consumer Medical Device Controller, Educational Development Platform.
USB Audio DAC Interface
The PIC32MX150F128D-I/PT is well matched to USB audio DAC interfaces because it integrates full-speed USB 2.0 with on-chip transceiver plus two I2S/SP I modules that feed an external stereo DAC. The 40 MHz MIPS32 M4K core has more than enough headroom for isochronous USB audio at 44.1 kHz and 48 kHz sample rates, and the 32 KB SRAM accommodates USB descriptors and small audio buffers. With 21 GPIO available and PPS for flexible routing, designers can map I2S signals to convenient pins without rework. The result is a compact, low-cost USB-to-I2S bridge with audio class firmware available in MPLAB Harmony.
Recommended
Graphics HMI with PMP LCD
The PIC32MX150F128D-I/PT drives graphical LCDs via its integrated Parallel Master Port (PMP), which supports 8-bit data bus plus control lines for write operations to ST7565, KS0108, or compatible controllers. With 40 MHz core speed and 32 KB SRAM, it can manage text and simple icon rendering at acceptable frame rates for control panels and instrument displays. The Peripheral Pin Select (PPS) feature allows PMP and other peripherals to be remapped if board layout requires. Designers can run Microchip's graphics library or partner stacks for menu rendering and progress bars.
Recommended
Capacitive Touch User Interface
The PIC32MX150F128D-I/PT implements capacitive touch buttons and sliders via the integrated Charge Time Measurement Unit (CTMU), which delivers 1 ns time-resolution touch measurement. The mTouch firmware library provided by Microchip simplifies button and slider algorithms using the on-chip ADC plus CTMU. With 21 GPIO available, designers can implement up to 13 self-capacitance channels or run two sliders plus several buttons. Industrial temperature range and low-power modes suit appliance and consumer products that wake from touch.
Recommended
Industrial Sensor Hub with USB
The PIC32MX150F128D-I/PT functions as a low-cost USB-tethered sensor hub in industrial applications, reading temperature, pressure, or flow sensors via its 13-channel 10-bit ADC and exposing the data over USB to a host PC. The MIPS32 core plus four DMA channels handle continuous data acquisition at 1 Msps aggregate while servicing USB interrupt endpoints. The 2.3 V to 3.6 V supply range accommodates 3.3 V industrial rails, and the -40 C to +85 C industrial temperature grade supports factory environments. With on-chip temperature sensor, designers can also add cold-junction compensation for thermocouple measurements.
Recommended
Consumer Medical Device Controller
The PIC32MX150F128D-I/PT suits consumer medical peripherals such as connected thermometers, pulse oximeters, and portable spirometers because of its integrated USB for PC connectivity, ADC for sensor readout, and DSP-friendly 32-bit core for digital filtering. The 32 KB SRAM is adequate for short audio or pulse waveform records, and the PMP can drive simple alphanumeric LCDs found on handheld instruments. Designers can implement proprietary USB classes or use the Microchip CDC library for virtual COM port data transfer, simplifying PC-side software development.
Recommended
Educational Development Platform
The PIC32MX150F128D-I/PT serves as an excellent educational MCU because it combines the familiar MPLAB X IDE and Harmony code configurator with the educational-friendly MIPS architecture. Its rich peripheral set (USB, PMP, ADC, timers, I2S) lets students learn multiple interfaces on one chip. The TQFP-44 package is breadboard-friendly via carrier boards, and Microchip's Explorer 16/32 development kit supports this exact part. With 128 KB Flash, students can fit non-trivial projects like USB audio recorders or graphics-based mini-games in a single semester.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX150F128D-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX250F128D-I/PT | PIC32MX130F256D-I/PT | PIC32MX230F256D-I/PT | PIC32MX120F064D-I/PT | PIC32MX150F128D-V/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Maximum CPU Speed | 40 MHz | 50 MHz | 40 MHz | 50 MHz | 40 MHz | 40 MHz |
| Flash Memory | 128 KB | 128 KB | 256 KB | 256 KB | 64 KB | 128 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 8 KB | 32 KB |
| USB Interface | Yes (FS Device/Host/OTG) | Yes (FS Device/Host/OTG) | Yes (FS Device/Host/OTG) | Yes (FS Device/Host/OTG) | Yes (FS Device/Host/OTG) | Yes (FS Device/Host/OTG) |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +105 C |
Key Differentiators
- Optimized balance of cost, performance, and integrated USB (vs PIC32MX120F064D-I/PT)
- Standard industrial speed grade for broadest application coverage (vs PIC32MX250F128D-I/PT)
- Standard industrial temperature range matches most applications (vs PIC32MX150F128D-V/PT)
Design Notes
Decouple each VDD pin with a 100 nF X7R ceramic placed within 3 mm of the pin, plus a bulk 4.7 uF tantalum or ceramic near the package. According to Microchip datasheet DS60001168L, the PIC32MX150F128D has four VDD and four VSS pins distributed around the TQFP-44 package to support low-inductance grounding. For USB applications, route VUSB separately and decouple with 100 nF plus 4.7 uF to provide clean reference for the internal USB transceiver. Add a ferrite bead or LC filter on VBUS if the device is bus-powered to suppress USB cable noise.
Peripheral Pin Select (PPS) must be configured at startup to map peripheral functions (UART, SPI, I2S, PWM) to physical GPIO pins. Unmapped peripherals will not function even if the pin is set as output. According to the Microchip datasheet, the PPS lock sequence requires unlocking the IOLOCK bit, performing the mapping, then re-locking. Also note that USB pins (RB2, RB3, RB4) are NOT remappable - they are fixed to the USB peripheral. Forgetting this is a common firmware bug that prevents USB enumeration.
For USB applications, route the D+ and D- lines (RB3, RB4) as a 90 ohm differential pair with length matching within 2 mm. According to USB 2.0 Full-Speed specification, the trace impedance must be 90 ohms +/- 10 percent to meet signal quality requirements. Keep the lines away from clock oscillators and switching power supplies. Place the 15 kohm pull-down on D+ (for full-speed device) or pull-up on D- (for low-speed device) close to the connector, not the MCU pin, to minimize stub length.
The PIC32MX150F128D-I/PT in TQFP-44 has a thermal resistance of approximately 50 C/W junction-to-ambient on a standard 2-layer JEDEC test board. At maximum active current consumption of 20 mA (40 MHz at 3.6 V with all peripherals active), the device dissipates about 72 mW, producing a junction temperature rise of only 3.6 C above ambient - well within safe operating limits. For high-temperature environments above 85 C, consider the -V suffix (105 C) or -E suffix (125 C) variants instead of the -I industrial grade.
Place the 8 MHz primary crystal (or ceramic resonator) within 5 mm of pins OSC1 and OSC2, with short traces and a guard ring tied to analog ground for noise isolation. According to the Microchip datasheet, USB applications require either an external 48 MHz clock source or a primary oscillator of 8 MHz, 10 MHz, or 12 MHz that the USB PLL can multiply with sufficient accuracy. The device also supports an internal 8 MHz oscillator with 2 percent accuracy which is acceptable for non-USB applications, saving two external components.
Compliance Information
RoHS and lead-free status confirmed by Microchip product page. AEC-Q100 not applicable for industrial grade MCU. Halogen-free status not explicitly stated in provided data. Conflict minerals compliance per Microchip corporate policy.
