PIC32MX150F256LT-I/PF - 32-bit 256KB Flash MCU | Microchip 100-TQFP
MPN: PIC32MX150F256LT-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.48 | $64.80 |
| 100 | $5.65 | $565.00 |
| 500 | $5.05 | $2,525.00 |
| 1,000 | $4.55 | $4,550.00 |
PIC32MX150F256LT-I/PF Overview
A PIC32MX microcontroller is a MIPS32 M4K-based 32-bit MCU family from Microchip Technology, positioned between the 8-bit PIC16/PIC18 families and the higher-end PIC32MZ family. Within Microchip's hierarchy it sits in the PIC32MX1XX/2XX 28/36/44/100-pin subfamily, which targets cost-sensitive embedded applications that still require 32-bit performance, USB, and richer analog/peripheral integration than 8-bit parts. Compared with legacy PIC24/dsPIC parts, PIC32MX devices provide higher core performance, larger address space, full USB OTG/device/host stacks, and on-chip 10-bit ADC.
Key features highlighted on Microchip's product page include Peripheral Pin Select (PPS) for flexible pin assignment, two I2S and four SPI modules for codec and audio, an on-chip 10-bit 1 Msps ADC, five 16-bit timers/counters, and a CTMU (Charge Time Measurement Unit) supporting capacitive touch and accurate time measurement. The 100-pin TQFP option maximizes I/O count for graphics and parallel-interface designs. USB 2.0 full-speed device support, RTCC, and a wide -40C to +85C industrial temperature range broaden its use cases beyond hobbyist projects.
Typical applications include low-cost graphics HMI with TFT panels via PMP, USB peripherals such as HID or CDC devices, audio streaming via I2S codecs, capacitive-touch user interfaces using CTMU, and connected-sensor nodes for industrial monitoring. The wide operating voltage and integrated USB transceiver simplify BOM and PCB area, particularly where both low cost and 32-bit throughput matter.
When designing with this part, plan oscillator and PLL configuration carefully: the 40 MHz core drives the peripheral bus and USB clock domains, and 8 MHz primary oscillator crystals are commonly used. Leave room in the firmware for vector remapping when migrating from smaller 28/36/44-pin PIC32MX1XX siblings.
This page synthesizes distributor pricing, drop-in TQFP-100 alternatives from Microchip's same family, and practical design notes not consolidated on the official datasheet front matter.
Drop-in alternatives for PIC32MX150F256LT-I/PF — 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 PIC32MX150F256LT-I/PF (same form factor and footprint) — differing in ADC, Parallel Master Port (PMP), Core Architecture, Package, Data Memory (SRAM).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX150F256L-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX150F256LT-50I/PF
✅ Drop-In✓ In Stock
$4.65 / Unit
View Datasheet →PIC32MX150F256HT-I/MR
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →PIC32MX130F256DT-I/PT
✅ Drop-In✓ In Stock
$3.5 / Unit
View Datasheet →PIC24HJ64GP510A-I/PT
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →PIC32MX150F256LT-I/PF Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Core Frequency (max) | 40 MHz (50 MHz on -50I variants) |
| DMIPS | 83 DMIPS at 50 MHz |
| Program Flash Memory | 256 KB (256K x 8) |
| SRAM | 32 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 85 |
| Package | 100-pin TQFP (14x14 mm) |
| USB | USB 2.0 Full-Speed Device |
| SPI Modules | 4 |
| I2S Modules | 2 |
| ADC | 10-bit, 1 Msps |
| Timers | 5 x 16-bit |
| Parallel Master Port (PMP) | Yes, with dual read/write buffers |
| Peripheral Pin Select (PPS) | Yes |
| CTMU | Yes (Capacitive Touch / time measurement) |
| Operating Temperature Range | -40C to +85C (industrial) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
| RoHS Status | Compliant |
PIC32MX150F256LT-I/PF Pin Configuration
| Pin 1 | RG15 — General purpose I/O / PPS remappable |
| Pin 2 | SDA1/RA15 — I2C1 SDA / GPIO |
| Pin 3 | SCL1/RA14 — I2C1 SCL / GPIO |
| Pin 4 | MCLR — Master Clear (reset, active low) |
| Pin 5 | AVDD — Analog supply |
| Pin 6 | AVSS — Analog ground |
| Pin 7 | OA1OUT/AN1/C1IN+/RA1 — Op-amp output / analog input |
| Pin 8 | OA1IN-/AN2/C1IN-/RA2 — Op-amp input / analog input |
| Pin 9 | OA1IN+/AN3/RA3 — Op-amp input / analog input |
| Pin 10 | AN4/RB0 — Analog input / GPIO |
| Pin 20 | TMS/RA5 — JTAG TMS / GPIO |
| Pin 30 | VDD — Digital supply (3.3 V typical) |
| Pin 40 | VSS — Digital ground |
| Pin 50 | OSC1/CLKI/RC12 — Oscillator input |
| Pin 60 | D+/RG2 — USB D+ / GPIO |
| Pin 61 | D-/RG3 — USB D- / GPIO |
| Pin 70 | PMD0/RE0 — Parallel master port data |
| Pin 80 | PMALL/PMA0/RA0 — PMP address / GPIO |
| Pin 90 | RF4/SDA2 — I2C2 SDA / GPIO |
| Pin 100 | RF5/SCL2 — I2C2 SCL / GPIO |
Typical Applications
PIC32MX150F256LT-I/PF is suitable for 7 applications: USB Audio Device (Headset / Microphone), TFT HMI Graphics Panel, Capacitive Touch User Interface, USB HID Industrial Control Pod, Connected Sensor Hub, Audio Codec Streaming Module, Industrial Data Logger.
USB Audio Device (Headset / Microphone)
The PIC32MX150F256LT-I/PF's on-chip USB 2.0 full-speed device plus two I2S and four SPI interfaces make it a strong fit for USB audio peripherals. The 32-bit MIPS M4K core at 40 MHz sustains 48 kHz stereo I2S streams without DMA stalls, while the integrated USB audio class stack handles enumeration on Windows, macOS, and Linux without external PHY. Compared to discrete USB + DSP solutions, this part reduces BOM by 30-50% and PCB area by roughly half. Its 256 KB Flash fits USB descriptors, audio class drivers, and DSP effects (AGC, EQ, sidetone) in a single chip.
Recommended
TFT HMI Graphics Panel
The PIC32MX150F256LT-I/PF's parallel master port (PMP) with dual read/write buffers and 85 GPIO in a 100-pin TQFP are tailored for driving small-to-medium TFT panels (3.5"-5") at QVGA/WQVGA resolutions. The PMP supports 8-bit and 16-bit 8080/6800 modes, offloading pixel data writes via DMA so the CPU can render text, icons, and progress widgets. Compared to discrete LCD controllers, integrating PMP with the MCU halves PCB area. The wide 2.3-3.6 V VDD range also makes it compatible with backlight-boosted 3.3 V panels.
Recommended
Capacitive Touch User Interface
The integrated CTMU (Charge Time Measurement Unit) on the PIC32MX150F256LT-I/PF supports up to 32 capacitive touch channels through any digital I/O, enabling button, slider, and wheel user interfaces without dedicated touch ICs. The 40 MHz core runs Microchip's mTouch library for proximity sensing and water-tolerant filtering in real time. Compared to discrete touch controllers, the integrated CTMU saves roughly $0.50 BOM and 50 mm2 board area while allowing firmware updates to retune sensitivity without hardware rework.
Recommended
USB HID Industrial Control Pod
The PIC32MX150F256LT-I/PF's USB 2.0 device, 10-bit 1 Msps ADC, and five 16-bit timers combine to deliver a USB HID-class industrial controller in a single chip. With 85 GPIO and PPS remap flexibility, designers can interface multiple sensors (thermocouple, RTD, pressure) via SPI/I2C while streaming ADC data to a host at 1 kHz without bus contention. Compared to FTDI bridge + MCU designs, this part reduces component count by 30% and enables custom HID reports for high-speed control. The -40C to +85C industrial temperature range supports factory floor deployment.
Recommended
Connected Sensor Hub
The PIC32MX150F256LT-I/PF's USB device, four SPI modules, and 10-bit ADC support a wired connected-sensor hub that aggregates multiple SPI-based sensors (IMU, environmental, flow) and exposes them as a USB composite device. The 256 KB Flash fits composite-class firmware plus on-device sensor calibration, while 32 KB SRAM buffers high-rate IMU streams without dropping packets. The 32-bit MIPS core runs Kalman filtering inline, and the wide 2.3-3.6 V VDD range simplifies battery-backed designs that also accept USB power.
Recommended
Audio Codec Streaming Module
The PIC32MX150F256LT-I/PF integrates two I2S ports and four SPI ports with DMA, allowing simultaneous I2S microphone capture and I2S DAC output for streaming applications (intercoms, voice recorders, audio mixers). With 32 KB SRAM and DMA, full-duplex 48 kHz stereo is sustained without CPU intervention, leaving MIPS for compression (ADPCM, SBC) or noise-suppression filters. The 100-pin TQFP gives 85 GPIO for status LEDs and physical controls. Compared to MCU + external DSP designs, this single-chip solution cuts BOM cost by approximately 40%.
Recommended
Industrial Data Logger
The PIC32MX150F256LT-I/PF suits battery-backed industrial data loggers that record analog/digital signals for days and offload via USB. The 10-bit ADC at 1 Msps captures fast transients, the RTCC timestamps events with year-2038-valid RTC, and the 256 KB Flash plus 32 KB SRAM store roughly 16 MB-equivalent compressed logs. The wide 2.3-3.6 V supply matches 2xAA battery chemistries without boost converters. Compared to 8-bit PIC18 loggers, the 32-bit core compresses records in real time and forwards them via USB at line rate.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX150F256LT-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX150F256L-I/PF | PIC32MX150F256LT-50I/PF | PIC32MX150F256HT-I/MR | PIC32MX130F256DT-I/PT | PIC24HJ64GP510A-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (14x14 mm) | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same |
| Core Architecture | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | PIC24 16-bit |
| Max Core Frequency | 40 MHz (50 MHz on -50I) | 40 MHz (50 MHz on -50I) | 50 MHz | 50 MHz | 40 MHz | 40 MIPS 16-bit |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 64 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 8 KB |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | No USB | No USB |
| I2S Modules | 2 | 2 | 2 | 2 | 0 | 0 |
| I/O Pins | 85 | 85 | 85 | 53 (64-pin QFN variant) | 83 | 85 |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Highest integration: USB + I2S + PMP in single 100-pin MCU (vs PIC24HJ64GP510A-I/PT)
- 2x Flash and 4x SRAM of PIC24 subfamily (vs PIC24HJ64GP510A-I/PT)
- Wider operating voltage for battery designs (vs PIC24HJ64GP510A-I/PT)
- CTMU integrated for capacitive touch (vs PIC32MX130F256DT-I/PT)
Design Notes
The PIC32MX150F256LT-I/PF requires a clean 3.3 V supply rail; place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pin pair and bulk 10 uF tantalum or ceramic on the main VDD. The MCU draws roughly 30 mA at 40 MHz with all peripherals active, so budget 50 mA peak to leave headroom for USB in-rush. Connect AVDD and AVSS even if the ADC is unused, and place a ferrite bead or 10 ohm resistor between VDD and AVDD to isolate analog noise from digital switching. Use a 0 ohm link or ferrite bead to keep ADC noise below 1 LSB on 10-bit conversions.
The 100-pin TQFP with 0.5 mm pitch requires careful PCB layout: use 0.20 mm (8 mil) traces between pads and escape to inner layers through 0.30 mm vias. Route the USB D+/D- pair with 90 ohm differential impedance and length matching within 2 mm; place the USB common-mode choke within 5 mm of the connector. Keep the 8 MHz primary oscillator traces short (under 10 mm) and surround the crystal body with a ground pour to avoid radiated emissions. Pull MCLR high with a 10 kohm resistor and add a 100 nF capacitor for reset noise immunity.
A common pitfall is forgetting to configure the Configuration bits: FUSBIDIO must be cleared to enable USB, and FPLLODIV/FPLLMUL/FPLLICLK must be set correctly to hit 40 MHz from an 8 MHz crystal. PFSEL bits control peripheral multiplexing; misconfigured PPS remap can lock out JTAG, so set FWDTEN to disable watchdog during debug sessions. The MCLR pin must never float - always tie to VDD via 10 kohm. Finally, when migrating from PIC32MX150F256L-I/PF to the T-suffix tape-and-reel variant, ensure the BOM specifies the correct MPN ordering code for reel pick-and-place programming.
Compliance Information
RoHS and REACH compliance per Microchip product page. Industrial-grade -40C to +85C operating temperature range. Not AEC-Q100 qualified - choose AEC-Q100 variants for automotive.
