PIC32MX150F256L-50I/PF - 50MHz 32-bit MCU, 256KB Flash, TQFP-100
MPN: PIC32MX150F256L-50I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.4 | $5,400.00 |
PIC32MX150F256L-50I/PF Overview
What is a 32-bit microcontroller? A microcontroller (MCU) is a single-chip computer containing a CPU core, Flash program memory, SRAM data memory, and a rich set of peripherals such as timers, ADC, communication interfaces, and I/O. The "32-bit" designation refers to the width of the data path and registers, enabling higher throughput, larger address space, and richer data processing than 8-bit or 16-bit MCUs. The PIC32MX1XX/2XX/5XX family sits within Microchip's broader PIC32 portfolio, optimized for cost-sensitive 32-bit applications including human-machine interfaces (HMI), audio playback, and connectivity.
Key features include 50 MHz / 83 DMIPS core performance, USB 2.0 Full-Speed device/host/OTG, 10-bit 1 Msps ADC with up to 28 channels, up to four UART modules, two I2C modules, an 8-bit Parallel Master Port, and an on-chip 80 MHz RTCC. The integrated CTMU (Charge Time Measurement Unit) supports capacitive touch sensing, eliminating the need for an external touch controller.
Architecturally, the PIC32MX150F256L-50I/PF leverages the MIPS M4K core with a 5-stage pipeline, single-cycle multiply, and hardware multiply/divide. The wide memory bus and dual read/write PMP buffers accelerate graphics and external memory transactions, while PPS allows designers to remap digital peripherals onto most I/O pins, simplifying PCB routing on dense 100-pin layouts.
Typical applications include industrial control panels, USB audio peripherals, low-cost HMI with TFT displays, consumer electronics, capacitive touch keypads, motor control, and embedded data logging with USB mass storage. The 2.3 V to 3.6 V Vcc range and -40 C to +85 C industrial temperature grade support rugged environments.
When designing with this MCU, allocate decoupling capacitance close to every Vdd/Vss pair and use the PMP in master mode with the dual buffers to sustain LCD refresh rates. PPS mapping must be locked via config bits to prevent accidental re-mapping at runtime.
This page consolidates distributor pricing, pin-compatible alternatives, and design notes not found in the manufacturer datasheet alone, helping engineers shorten their evaluation cycle.
Drop-in alternatives for PIC32MX150F256L-50I/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 PIC32MX150F256L-50I/PF (same form factor and footprint) — differing in ADC, Package, Operating Temperature Range, PMP (Parallel Master Port), USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX250F256L-50I/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32MX170F256L-50I/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32MX350F256L-50I/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32MX150F256L-50I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX150F256HT-I/MR
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →PIC32MX150F256L-50I/PF Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Bit Width | 32-bit |
| Maximum CPU Clock | 50 MHz |
| DMIPS Performance | 83 DMIPS |
| Program Flash Memory | 256 KB (256K x 8) |
| Data SRAM | 32 KB |
| Supply Voltage (Vdd) | 2.3 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial, "I") |
| Package | 100-pin TQFP (14x14 mm) |
| Mounting Type | Surface Mount |
| ADC | 10-bit, up to 1 Msps |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| UART Modules | Up to 4 |
| SPI Modules | 4 |
| I2C Modules | 2 |
| I2S Modules | 2 |
| Parallel Master Port (PMP) | Yes, dual read/write buffers |
| Peripheral Pin Select (PPS) | Yes |
| CTMU (Capacitive Touch) | Yes (mTouch) |
| RTCC | Yes, on-chip |
| RoHS Status | Compliant (ROHS3) |
PIC32MX150F256L-50I/PF Pin Configuration
| Pin 1 | RG15 — General purpose I/O / PPS remappable |
| Pin 2 | VDD — Core supply voltage (2.3-3.6 V) |
| Pin 3 | RF0 — General purpose I/O / PPS remappable |
| Pin 4 | RF1 — General purpose I/O / PPS remappable |
| Pin 5 | RF2 — General purpose I/O / SDA2 / PPS remappable |
| Pin 6 | RF3 — General purpose I/O / SCL2 / PPS remappable |
| Pin 7 | RF4 — General purpose I/O / SDA1 / PPS remappable |
| Pin 8 | RF5 — General purpose I/O / SCL1 / PPS remappable |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RF6 — General purpose I/O / PPS remappable |
| Pin 11 | RF7 — General purpose I/O / PPS remappable |
| Pin 12 | RF8 — General purpose I/O / PPS remappable |
| Pin 13 | RG6 — General purpose I/O / PPS remappable |
| Pin 14 | RG7 — General purpose I/O / PPS remappable |
| Pin 15 | RG8 — General purpose I/O / PPS remappable |
| Pin 16 | RG9 — General purpose I/O / PPS remappable |
| Pin 17 | MCLR — Master Clear reset input (active low) |
| Pin 18 | RG0 — General purpose I/O / PPS remappable |
| Pin 19 | RG1 — General purpose I/O / PPS remappable |
| Pin 20 | RG2 — General purpose I/O / PPS remappable |
| Pin 21 | VDD — Core supply voltage (2.3-3.6 V) |
| Pin 22 | VSS — Ground reference |
| Pin 23 | RG3 — General purpose I/O / PPS remappable |
| Pin 24 | RG12 — General purpose I/O / PPS remappable |
| Pin 25 | RG13 — General purpose I/O / PPS remappable |
| Pin 26 | RG14 — General purpose I/O / PPS remappable |
| Pin 27 | RA0 — General purpose I/O / AN0 / PPS remappable |
| Pin 28 | RA1 — General purpose I/O / AN1 / PPS remappable |
| Pin 29 | RB0 — General purpose I/O / AN2 / PGED1 / PPS remappable |
| Pin 30 | RB1 — General purpose I/O / AN3 / PGEC1 / PPS remappable |
| Pin 31 | RB2 — General purpose I/O / AN4 / PPS remappable |
| Pin 32 | RB3 — General purpose I/O / AN5 / PPS remappable |
| Pin 33 | RB4 — General purpose I/O / AN6 / PPS remappable |
| Pin 34 | RB5 — General purpose I/O / AN7 / PPS remappable |
| Pin 35 | RB6 — General purpose I/O / AN8 / PPS remappable |
| Pin 36 | RB7 — General purpose I/O / AN9 / PPS remappable |
| Pin 37 | RB8 — General purpose I/O / AN10 / PPS remappable |
| Pin 38 | RB9 — General purpose I/O / AN11 / PPS remappable |
| Pin 39 | RB10 — General purpose I/O / AN12 / PPS remappable |
| Pin 40 | RB11 — General purpose I/O / AN13 / PPS remappable |
| Pin 41 | VSS — Ground reference |
| Pin 42 | VDD — Core supply voltage (2.3-3.6 V) |
| Pin 43 | RB12 — General purpose I/O / AN14 / PPS remappable |
| Pin 44 | RB13 — General purpose I/O / AN15 / PPS remappable |
| Pin 45 | RB14 — General purpose I/O / AN16 / PPS remappable |
| Pin 46 | RB15 — General purpose I/O / AN17 / PPS remappable |
| Pin 47 | RD0 — General purpose I/O / PMPD0 / PPS remappable |
| Pin 48 | RD1 — General purpose I/O / PMPD1 / PPS remappable |
| Pin 49 | RD2 — General purpose I/O / PMPD2 / PPS remappable |
| Pin 50 | RD3 — General purpose I/O / PMPD3 / PPS remappable |
| Pin 51 | RD4 — General purpose I/O / PMPD4 / PPS remappable |
| Pin 52 | RD5 — General purpose I/O / PMPD5 / PPS remappable |
| Pin 53 | RD6 — General purpose I/O / PMPD6 / PPS remappable |
| Pin 54 | RD7 — General purpose I/O / PMPD7 / PPS remappable |
| Pin 55 | RC1 — General purpose I/O / T2CK / U1RTS / PPS remappable |
| Pin 56 | RC2 — General purpose I/O / T3CK / U1CTS / PPS remappable |
| Pin 57 | RC3 — General purpose I/O / U1TX / PPS remappable |
| Pin 58 | RC4 — General purpose I/O / U1RX / PPS remappable |
| Pin 59 | VSS — Ground reference |
| Pin 60 | VDD — Core supply voltage (2.3-3.6 V) |
| Pin 61 | RC13 — General purpose I/O / PPS remappable |
| Pin 62 | RC14 — General purpose I/O / PPS remappable |
| Pin 63 | RD8 — General purpose I/O / PMPD8 / PPS remappable |
| Pin 64 | RD9 — General purpose I/O / PMPD9 / PPS remappable |
| Pin 65 | RD10 — General purpose I/O / PMPD10 / PPS remappable |
| Pin 66 | RD11 — General purpose I/O / PMPD11 / PPS remappable |
| Pin 67 | RD12 — General purpose I/O / PMPD12 / PPS remappable |
| Pin 68 | RD13 — General purpose I/O / PMPD13 / PPS remappable |
| Pin 69 | RD14 — General purpose I/O / PMPD14 / PPS remappable |
| Pin 70 | RD15 — General purpose I/O / PMPD15 / PPS remappable |
| Pin 71 | VSS — Ground reference |
| Pin 72 | VDD — Core supply voltage (2.3-3.6 V) |
| Pin 73 | RC15 — General purpose I/O / PPS remappable |
| Pin 74 | RE0 — General purpose I/O / PMPRD / PPS remappable |
| Pin 75 | RE1 — General purpose I/O / PMPWR / PPS remappable |
| Pin 76 | RE2 — General purpose I/O / PMPCS1 / PPS remappable |
| Pin 77 | RE3 — General purpose I/O / PMPCS2 / PPS remappable |
| Pin 78 | RE4 — General purpose I/O / PMPA0 / PPS remappable |
| Pin 79 | RE5 — General purpose I/O / PMPA1 / PPS remappable |
| Pin 80 | RE6 — General purpose I/O / PMPA2 / PPS remappable |
| Pin 81 | RE7 — General purpose I/O / PMPA3 / PPS remappable |
| Pin 82 | RG0 — General purpose I/O / D+ / PPS remappable |
| Pin 83 | RG1 — General purpose I/O / D- / PPS remappable |
| Pin 84 | VUSB — USB 3.3 V transceiver supply |
| Pin 85 | VSS — Ground reference |
| Pin 86 | VDD — Core supply voltage (2.3-3.6 V) |
| Pin 87 | RF0 — General purpose I/O / PPS remappable |
| Pin 88 | RF1 — General purpose I/O / PPS remappable |
| Pin 89 | RB0 — General purpose I/O / PGED1 / PPS remappable |
| Pin 90 | RB1 — General purpose I/O / PGEC1 / PPS remappable |
| Pin 91 | RB2 — General purpose I/O / PGED2 / PPS remappable |
| Pin 92 | RB3 — General purpose I/O / PGEC2 / PPS remappable |
| Pin 93 | RA2 — General purpose I/O / AN18 / PPS remappable |
| Pin 94 | RA3 — General purpose I/O / AN19 / PPS remappable |
| Pin 95 | RA4 — General purpose I/O / AN20 / PPS remappable |
| Pin 96 | RA5 — General purpose I/O / AN21 / PPS remappable |
| Pin 97 | RA6 — General purpose I/O / AN22 / PPS remappable |
| Pin 98 | RA7 — General purpose I/O / AN23 / PPS remappable |
| Pin 99 | VSS — Ground reference |
| Pin 100 | VDD — Core supply voltage (2.3-3.6 V) |
Typical Applications
PIC32MX150F256L-50I/PF is suitable for 6 applications: Industrial HMI Control Panel, USB Audio Peripherals, Capacitive Touch Keypad, USB Mass Storage Data Logger, Motor Control and BLDC Drive, Consumer Wearable Device.
Industrial HMI Control Panel
The PIC32MX150F256L-50I/PF fits industrial HMI panels because of its integrated Parallel Master Port (PMP) with dual read/write buffers that sustain TFT LCD refresh at 60 Hz without external bus controllers. With 50 MHz/83 DMIPS core, 32 KB SRAM buffers entire menu structures and Modbus RTU stacks, while the 100-pin TQFP exposes up to 78 I/O for key matrices, status LEDs, and rotary encoders. The 2.3 V to 3.6 V Vdd range and -40 C to +85 C industrial temperature grade ensure reliable operation in factory environments, and PPS remapping allows routing USB, UART, and SPI to convenient board locations.
Recommended
USB Audio Peripherals
For USB audio peripherals such as USB speakers and headsets, the PIC32MX150F256L-50I/PF's on-chip USB 2.0 Full-Speed OTG controller handles 12 Mbps isochronous audio streams without external transceivers, and the two I2S interfaces support DAC/ADC pairs at standard 44.1/48 kHz. The 256 KB Flash accommodates USB audio class drivers and small DSP pre-effects, while 32 KB SRAM is sufficient for USB endpoint buffers plus audio frame queues. The CTMU enables capacitive mute/volume buttons, and the 50 MHz MIPS M4K core sustains 8 kHz to 48 kHz sample-rate conversion on-chip.
Recommended
Capacitive Touch Keypad
The PIC32MX150F256L-50I/PF implements capacitive touch sensing via its on-chip CTMU (Charge Time Measurement Unit), removing the need for an external touch controller and reducing BOM cost on consumer appliances. With 50 MHz MIPS M4K, the core scans 10-20 touch electrodes at 100 Hz refresh while running a user interface; 32 KB SRAM buffers gesture state, while 256 KB Flash stores configurable touch profiles. The mTouch library from Microchip provides ready algorithms, and PPS remaps touch channels onto unused I/O pins, simplifying PCB layout under the keypad.
Recommended
USB Mass Storage Data Logger
The PIC32MX150F256L-50I/PF serves as a USB mass storage data logger for industrial and environmental monitoring. Its USB 2.0 Full-Speed On-The-Go controller enumerates as a removable drive when plugged into a host PC, allowing direct file access to a microSD card connected via PMP. With 50 MHz and 32 KB SRAM, the MCU manages FAT32 writes at 200 KB/s while sustaining an ADC sample stream at 1 Msps into the 256 KB Flash-backed buffer. PPS remapping keeps the PMP and USB pins on convenient board locations.
Recommended
Motor Control and BLDC Drive
The PIC32MX150F256L-50I/PF drives BLDC and stepper motors using its 50 MHz core for field-oriented control (FOC) loops at 20 kHz PWM while leaving CPU headroom for UART telemetry and USB diagnostics. The PWM-triggered 10-bit ADC at 1 Msps synchronizes current sampling with the PWM edge, the CTMU measures back-EMF, and PPS remaps PWM channels onto any GPIO for board flexibility. Industrial temperature grade and 2.3-3.6 V Vdd tolerate noisy motor bus environments.
Recommended
Consumer Wearable Device
In consumer wearables such as fitness bands and BLE bridges, the PIC32MX150F256L-50I/PF acts as a sensor hub processor: 50 MHz/83 DMIPS runs pedometer and gesture algorithms, while the four SPI ports connect to BLE modules, IMUs, and heart-rate sensors. The 256 KB Flash stores BLE profiles and pedometer firmware, 32 KB SRAM is enough for sensor fusion buffers, and the 100-pin TQFP package fits wearables with rich peripheral expansion. USB 2.0 FS enables charging and firmware upgrade docks, while CTMU supports touch strip controls.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX150F256L-50I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX250F256L-50I/PF | PIC32MX170F256L-50I/PF | PIC32MX350F256L-50I/PF | PIC32MX150F256L-50I/PT | PIC32MX150F256HT-I/MR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (14x14) | 100-pin TQFP (14x14) | 100-pin TQFP (14x14) | 100-pin TQFP (14x14) | 100-pin TQFP (12x12) | 100-pin TQFP (14x14) |
| Core Architecture | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Max CPU Clock | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 32 KB | 64 KB | 32 KB | 128 KB | 32 KB | 32 KB |
| Supply 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 | 2.3 V to 3.6 V |
| USB | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Crypto Engine | No | No | Yes | No | No | No |
Key Differentiators
- Highest memory headroom in 100-pin TQFP for value-line PIC32MX (vs PIC32MX130F256D-50I/PT)
- Includes on-chip CTMU for capacitive touch without external controller (vs PIC32MX250F256L-50I/PF)
- Industrial temperature grade with USB Full-Speed OTG (vs PIC32MK1024MCM100T-I/PT)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to every Vdd/Vss pair of the PIC32MX150F256L-50I/PF, with an additional 10 uF bulk capacitor near the package to supply the 50 MHz core transient load. For USB applications, add a 100 nF + 4.7 uF pair on the VUSB pin to filter USB transceiver supply; without proper decoupling the USB eye diagram can degrade and cause enumeration failures.
Lock Peripheral Pin Select (PPS) mappings via configuration bits or early initialization code, because PPS registers default to a safe but non-functional mapping and runtime re-mapping can cause momentary glitches on remapped peripherals. Always reserve at least 4.7 kohm pull-ups on I2C lines and unused I/O pins, and route the 50 MHz clock trace in the shortest possible length to minimize EMI.
Estimated: at 50 MHz core clock with all peripherals enabled and USB active, the PIC32MX150F256L-50I/PF can draw up to 70 mA from Vdd; the 100-pin TQFP package has theta_JA of approximately 35-40 C/W on a 4-layer JEDEC test board, so the die temperature rises 2-3 C above ambient at full load. A small copper pour on the 100-pin TQFP exposed pad (when present) is recommended, although the TQFP package itself lacks a true EP. Watch out for in-application programming (IAP) timing when the entire Flash is written - sector-erase followed by full-chip write takes ~2 seconds.
Compliance Information
ROHS3 compliant per mcu-supplier listing. Not AEC-Q100 qualified (industrial-grade MCU, not automotive).
