PIC32MX150F128D-50I/TL - 50MHz 32-bit MCU 128KB Flash | Microchip
MPN: PIC32MX150F128D-50I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.21 | $52.10 |
| 100 | $4.78 | $478.00 |
| 500 | $4.3 | $2,150.00 |
| 1,000 | $3.85 | $3,850.00 |
PIC32MX150F128D-50I/TL Overview
A 32-bit microcontroller (MCU) is a programmable system-on-chip that combines a CPU core, volatile memory (SRAM), non-volatile memory (Flash), and multiple peripheral interfaces on a single silicon die. Within the broader hierarchy of microcontrollers, the PIC32MX family belongs to the 32-bit MCU category, itself a sub-category of microcontrollers, embedded processors, and ultimately semiconductors. 32-bit MCUs are typically chosen over 8-bit or 16-bit parts when applications require more than 64 KB of code space, hardware USB, or graphics-oriented peripherals such as PMP for TFT displays.
Key features of the PIC32MX150F128D-50I/TL include a low active current of less than 0.5 mA/MHz at full speed, Peripheral Pin Select (PPS) for flexible peripheral-to-pin mapping, two I2S/SPI modules for codec and serial communication, PMP for graphics interfaces, support for mTouch capacitive touch buttons and sliders, and a high-resolution 1 ns time-measurement capability. The device operates from 2.3 V to 3.6 V and supports industrial temperature range parts (-40C to +85C).
The architecture combines a MIPS32 M4K RISC core with a 5-stage pipeline, Harvard bus structure, single-cycle hardware multiply/divide, and tightly coupled peripherals. PPS remapping allows designers to assign peripherals to available I/O pins without redesigning the PCB. The 10-bit ADC provides up to 1 Msps conversion with on-chip sample-and-hold, and the CTMU enables capacitive touch measurement, time-of-flight, and accurate pulse generation.
Typical applications include USB audio devices, mTouch capacitive touch panels, low-cost graphics displays via PMP, sensor hubs, and general-purpose embedded control. The wide peripheral mix makes this MCU particularly attractive for cost-sensitive consumer electronics requiring USB plus graphics in a single chip.
When designing with the PIC32MX150F128D-50I/TL, plan the decoupling network with a 0.1 uF capacitor on each VDD pin and a bulk 4.7 uF to 10 uF tantalum/ceramic capacitor near the regulator. The VTLA package has an exposed thermal pad that must be soldered to the ground plane for mechanical stability and thermal dissipation.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives in the same 44-pin VTLA footprint, comparison parameters, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MX150F128D-50I/TL — 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-50I/TL (same form factor and footprint) — differing in ADC, Timers, Operating Temperature, Active Current, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX150F128D-I/TL
✅ Drop-In✓ In Stock
$3.25 / Unit
View Datasheet →PIC32MX150F128D-50V/TL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX130F256D-50I/TL
✅ Drop-In✓ In Stock
$3.42 / Unit
View Datasheet →PIC32MX150F128C-I/TL
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →PIC32MX150F128D-50I/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 50 MHz |
| Flash Program Memory | 128 KB (128K x 8) |
| SRAM | 32 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 44-pin VTLA (6x6 mm) |
| I/O Pins | 34 (per family datasheet) |
| USB Module | USB 2.0 Full-Speed (Host/Device/OTG) |
| SPI Modules | 2 (with I2S support) |
| I2C Modules | 2 |
| UART Modules | 2 |
| ADC | 10-bit, 1 Msps, up to 13 channels |
| Parallel Master Port (PMP) | Yes (for graphics interfaces) |
| Peripheral Pin Select (PPS) | Yes |
| Charge Time Measurement Unit (CTMU) | Yes (mTouch and timing support) |
| Active Current | less than 0.5 mA/MHz |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC32MX150F128D-50I/TL Pin Configuration
| Pin 1 | VDD — Supply voltage 2.3-3.6 V |
| Pin 2 | RA0 — GPIO / analog input / peripheral pin select |
| Pin 3 | RA1 — GPIO / analog input / peripheral pin select |
| Pin 4 | RA2 — GPIO / analog input / peripheral pin select |
| Pin 5 | RA3 — GPIO / analog input / peripheral pin select |
| Pin 6 | RA4 — GPIO / analog input / peripheral pin select |
| Pin 7 | RA5 — GPIO / analog input / peripheral pin select |
| Pin 8 | RA6 — GPIO / analog input / peripheral pin select |
| Pin 9 | RA7 — GPIO / analog input / peripheral pin select |
| Pin 10 | RA8 — GPIO / analog input / peripheral pin select |
| Pin 11 | RA9 — GPIO / analog input / peripheral pin select |
| Pin 12 | RA10 — GPIO / analog input / peripheral pin select |
| Pin 13 | VSS — Ground |
| Pin 14 | RB0 — GPIO / peripheral pin select |
| Pin 15 | RB1 — GPIO / peripheral pin select |
| Pin 16 | RB2 — GPIO / peripheral pin select |
| Pin 17 | RB3 — GPIO / peripheral pin select |
| Pin 18 | RB4 — GPIO / peripheral pin select |
| Pin 19 | RB5 — GPIO / peripheral pin select / PMP |
| Pin 20 | RB6 — GPIO / peripheral pin select / PMP |
| Pin 21 | RB7 — GPIO / peripheral pin select / PMP |
| Pin 22 | RB8 — GPIO / peripheral pin select / PMP |
| Pin 23 | RB9 — GPIO / peripheral pin select / PMP |
| Pin 24 | RB10 — GPIO / peripheral pin select / PMP |
| Pin 25 | RB11 — GPIO / peripheral pin select / PMP |
| Pin 26 | RB12 — GPIO / peripheral pin select |
| Pin 27 | RB13 — GPIO / peripheral pin select |
| Pin 28 | RB14 — GPIO / peripheral pin select |
| Pin 29 | RB15 — GPIO / peripheral pin select |
| Pin 30 | VSS — Ground |
| Pin 31 | RC0 — GPIO / analog input / peripheral pin select |
| Pin 32 | RC1 — GPIO / analog input / peripheral pin select |
| Pin 33 | RC2 — GPIO / analog input / peripheral pin select |
| Pin 34 | RC3 — GPIO / analog input / peripheral pin select |
| Pin 35 | RC4 — GPIO / analog input / peripheral pin select |
| Pin 36 | RC5 — GPIO / analog input / peripheral pin select |
| Pin 37 | RC6 — GPIO / analog input / peripheral pin select |
| Pin 38 | RC7 — GPIO / analog input / peripheral pin select |
| Pin 39 | RC8 — GPIO / analog input / peripheral pin select |
| Pin 40 | RC9 — GPIO / analog input / peripheral pin select |
| Pin 41 | VUSB — USB 3.3V regulator output (USB transceiver supply) |
| Pin 42 | D+ — USB D+ data line |
| Pin 43 | D- — USB D- data line |
| Pin 44 | VDD — Supply voltage 2.3-3.6 V |
Typical Applications
PIC32MX150F128D-50I/TL is suitable for 7 applications: USB Audio Device Interface, mTouch Capacitive Touch Panel, Low-Cost Graphics Display Controller, Industrial Sensor Hub, USB-to-UART/I2C/SPI Bridge, Battery-Operated Portable Data Logger, Home Automation Control Node.
USB Audio Device Interface
The PIC32MX150F128D-50I/TL is well matched for USB Full-Speed audio peripherals such as USB speakers, headsets, and audio interfaces. The integrated USB 2.0 Full-Speed controller (12 Mbps) with on-chip transceiver and dedicated endpoint RAM removes the need for an external PHY. At 50 MHz the M4K core delivers 1.56 DMIPS/MHz, providing headroom for the USB stack plus audio buffering. The two I2S/SPIs connect directly to codecs such as the TI TLV320AIC23B or Cirrus CS4344. Designers typically implement isochronous USB endpoints with 8-32 byte packet sizes and buffer audio via DMA to the I2S peripheral.
Recommended
mTouch Capacitive Touch Panel
The PIC32MX150F128D-50I/TL is ideal for capacitive touch buttons, sliders, and wheels thanks to the integrated CTMU (Charge Time Measurement Unit). The CTMU works with the on-chip 10-bit ADC to measure sub-picofarad capacitance changes at 1 ns resolution, eliminating the need for an external touch IC. The 50 MHz core supports up to 32 touch channels via the A/D mux, with scanning rates above 100 Hz. According to Microchip mTouch application notes, the typical implementation uses firmware-based oversampling and a self-calibration routine to compensate for temperature drift. The same design pattern scales from 4 to 32 buttons without hardware changes.
Recommended
Low-Cost Graphics Display Controller
The PIC32MX150F128D-50I/TL drives small TFT or CSTN LCD panels via the integrated Parallel Master Port (PMP), supporting 8-bit or 16-bit data widths up to 25 MHz. Combined with the 50 MHz CPU, the part can refresh QVGA (320x240) panels with simple graphical content without external controllers. Applications include home automation keypads, appliance displays, and small industrial HMIs. Microchip's Microchip Graphics Library provides ready-to-use primitives (lines, rectangles, text, bitmaps) running from Flash. The Peripheral Pin Select (PPS) keeps the PMP signals flexible while freeing other pins for additional I/O.
Recommended
Industrial Sensor Hub
The PIC32MX150F128D-50I/TL functions as a multi-sensor hub aggregating analog sensor data via its 10-bit ADC (up to 13 channels, 1 Msps), I2C sensors, and SPI peripherals. The DMA controller offloads data movement from the CPU, allowing continuous sampling while user code runs. Industrial temperature parts (-40C to +85C) suit factory automation and process control. The USB device port can expose the sensor hub as a HID or vendor-class device to a host PC, simplifying field calibration and data logging. PIC32MX150F128D-50V/TL is recommended for environments up to 105C.
Recommended
USB-to-UART/I2C/SPI Bridge
The PIC32MX150F128D-50I/TL implements a USB-to-UART, USB-to-I2C, or USB-to-SPI bridge using the CDC or vendor-class USB stack running on the M4K core. The two UART, two I2C, and two I2S/SPI modules support simultaneous bridging of multiple protocols. The 50 MHz CPU ensures low-latency bridging without protocol handshakes. The same design pattern enables field firmware update tools and PC peripherals that require a legacy serial bus plus USB connectivity. Microchip provides the USB stack as part of MPLAB Harmony framework.
Recommended
Battery-Operated Portable Data Logger
The PIC32MX150F128D-50I/TL is suitable for portable data logging applications thanks to its active current under 0.5 mA/MHz at 50 MHz, plus multiple low-power sleep modes. The CTMU enables low-current sensor excitation for capacitive and resistive measurements. The 32 KB SRAM buffers sample data while the 128 KB Flash stores compressed logs. Battery monitoring can be implemented via the ADC reading a divider from VDD. A typical implementation achieves weeks of operation on a CR2032 or small Li-ion cell with intermittent sampling.
Recommended
Home Automation Control Node
The PIC32MX150F128D-50I/TL serves as a central control node in home automation hubs, combining USB connectivity (for PC configuration), I2C sensor networks, SPI-controlled radios, and PWM actuator control. The Peripheral Pin Select (PPS) flexibility simplifies PCB layout by remapping peripherals to available pins. The USB CDC class can expose a virtual serial port for firmware updates over USB, while the UARTs and I2C connect to physical-layer modules such as RS-485 transceivers or Zigbee/WiFi co-processors. Microchip's MiWi protocol stack runs efficiently on the M4K core.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX150F128D-50I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX150F128D-I/TL | PIC32MX150F128D-50V/TL | PIC32MX130F256D-50I/TL | PIC32MX150F128C-I/TL |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin VTLA (6x6 mm) | 44-pin VTLA (6x6 mm) - same | 44-pin VTLA (6x6 mm) - same | 44-pin VTLA (6x6 mm) - same | 44-pin VTLA (6x6 mm) - same |
| Maximum CPU Clock | 50 MHz | 40 MHz | 50 MHz | 50 MHz | 40 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 128 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB Module | Yes (Full-Speed Host/Device/OTG) | Yes | Yes | Yes | No (per C variant) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C |
| Approx. Qty-1 Price (USD) | 5.62 | 5.20 | 5.95 | 6.40 | 4.95 |
Key Differentiators
- 25% higher CPU throughput at same VTLA-44 footprint (vs PIC32MX150F128D-I/TL)
- Wider industrial temperature rating than standard -I part (vs PIC32MX150F128D-50V/TL)
- Drop-in Flash upgrade path to 256 KB (vs PIC32MX130F256D-50I/TL)
- Higher-density VTLA package saves PCB area (vs PIC32MX150F128D-50I/PT)
Design Notes
The PIC32MX150F128D-50I/TL requires a clean 3.3 V supply with at least 0.1 uF ceramic decoupling on each VDD pin plus a bulk 4.7 uF to 10 uF tantalum or ceramic capacitor near the supply pins. The internal voltage regulator powers the core from the same external rail; bypassing noise is critical for USB Full-Speed compliance. The VUSB pin (pin 41) supplies the internal USB transceiver and requires its own 0.1 uF decoupling capacitor placed within 5 mm of the pin.
The 44-pin VTLA package has an exposed thermal pad (EP) on its underside that must be soldered to a ground copper pour for mechanical reliability and thermal dissipation. The pad is electrically connected to VSS internally. A minimum 1 square inch ground plane with thermal vias (0.3 mm drill, 1 mm pitch) is recommended. At 50 MHz and 3.3 V, typical power dissipation is around 100 mW, well within the package's thermal capability when the EP is properly soldered.
Route USB D+ and D+ lines as a 90 ohm differential pair with matched lengths to within 2 mm. Keep the pair away from switching signals or noisy power traces. The 27 ohm series termination resistors on D+/D- should be placed within 5 mm of the MCU pins. The PCB stack-up should provide a continuous ground plane under the USB traces for controlled impedance. The VUSB decoupling capacitor must be as close as possible to pin 41.
Do not leave the JTAG pins floating if JTAG is unused - configure them as GPIO in firmware to prevent unwanted current draw. The Peripheral Pin Select (PPS) must be unlocked via a sequence of writes to the OSCCON register before remapping peripherals, otherwise PPS assignment silently fails. The CTMU requires calibration of the internal current source before accurate capacitance measurements. For USB, the internal pull-up resistor on D+ must be enabled in firmware (U1OTGCON register) for device mode enumeration.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - not intended for automotive applications. Industrial temperature range -40C to +85C. Lead-free and halogen-free per Microchip material declaration.