PIC32MX350F128L-V/PT - 80MHz 32-bit MCU 128KB Flash | Microchip
MPN: PIC32MX350F128L-V/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.21 | $42.10 |
| 100 | $3.75 | $375.00 |
| 500 | $3.35 | $1,675.00 |
| 1,000 | $2.99 | $2,990.00 |
PIC32MX350F128L-V/PT Overview
A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory (Flash), data memory (SRAM), and peripheral set into one IC. The PIC32MX family belongs to the wider taxonomy: microcontroller -> embedded processor -> semiconductor IC. Within Microchip's portfolio it sits in the PIC32MX3xx/4xx performance tier, offering higher peripheral integration than PIC32MX1xx/2xx parts while remaining lower cost than PIC32MZ devices.
Key features include two SPI/I2S ports, two I2C, two UART, a 10-bit ADC with up to 28 analog channels, two analog comparators, five 16-bit timers, and a Parallel Master Port for external memory bus. Hardware multiplier/Divider, trace support, and a 5-bit RTCC round out the integrated peripheral set, allowing display, audio, USB-device, and capacitive-touch HMI designs without external coprocessors.
Architecturally, the M4K core implements a 5-stage pipeline with Harvard bus architecture, single-cycle 32x16 multiply, and zero-look-ahead DSP-friendly instruction set. The wide 32-bit datapath executes most instructions in one cycle, achieving 1.26 Dhrystone MIPS per MHz; at 80 MHz this yields approximately 101 DMIPS, while the related -120 variant reaches 150 DMIPS.
Typical applications include industrial control panels, HMI touch screens, low-cost USB audio peripherals, sensor aggregation nodes, and small-format graphical displays. The 100-pin TQFP footprint also makes it compatible with hobbyist and rapid-prototyping environments that favor easily-handled packages.
When selecting this device, verify the -V temperature grade matches your environment; the companion -I/port parts cover -40 to +85C industrial, while the -E grade covers -40 to +125C extended. Decoupling, trace length, and oscillator layout follow Microchip AN-Harmonics-1 and PIC32MX family reference design guidance.
This page synthesizes distributor pricing, drop-in same-package PIC32 alternatives, and application guidance not found in the manufacturer datasheet, with comparison data current as of 2026-10-02.
Drop-in alternatives for PIC32MX350F128L-V/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 PIC32MX350F128L-V/PT (same form factor and footprint) — differing in ADC, Package, I/O Pins, Core Architecture, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX350F128L-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX350F128LT-V/PT
✅ Drop-In✓ In Stock
$4.31 / Unit
View Datasheet →PIC32MX270F256L-V/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX170F512L-V/PT
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →PIC32MX350F256L-V/PT
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →PIC32MX340F128L-80V/PT
✅ Drop-In✓ In Stock
$4.9 / Unit
View Datasheet →PIC32MX350F128L-V/PT Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K |
| Core Size | 32-bit |
| Data Bus Width | 32 bit |
| Maximum Clock Frequency | 80 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 32 KB |
| Number of I/O | 85 |
| Supply Voltage | 2.3 V to 3.6 V |
| Operating Temperature | -40C to +105C (-V grade) |
| Package | 100-pin TQFP (PT) 12x12 mm |
| ADC | 10-bit, up to 28 channels |
| Analog Comparators | 2 |
| Timers | 5 x 16-bit |
| SPI/I2S | 2 |
| I2C | 2 |
| UART | 2 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC32MX350F128L-V/PT 100-pin tqfp (pt) 12x12 mm Pin Configuration Guide
Pin configuration for PIC32MX350F128L-V/PT (100-pin tqfp (pt) 12x12 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC32MX350F128L-V/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX350F128L-V/PT is suitable for 6 applications: Industrial HMI Touch Panels, USB Audio Peripherals (Headset/Microphone), Sensor Aggregation Nodes (IoT Edge), Small-format Graphical Displays (TFT/QVGA), Automotive Under-hood (-V Temperature), Low-cost Motor Control (BLDC / Stepper).
Industrial HMI Touch Panels
The PIC32MX350F128L-V/PT suits industrial HMI panels with capacitive touch because it integrates a parallel master port (PMP) for direct connection to TFT/QVGA displays and a 10-bit ADC for ambient light sensing. At 80 MHz the M4K core executes Microchip's Graphics Object Layer and mTouch libraries smoothly, while the 32 KB SRAM holds a 320x240x16b frame buffer. The -V grade ( -40C to +105C ) withstands factory-floor cabinet temperatures, and the 100-pin TQFP leaves plenty of GPIO for backlight PWM, buzzer, and CAN-bus isolation. Pin-compatible PIC32MX270F256L-V/PT upgrades flash to 256 KB when project size grows.
Recommended
USB Audio Peripherals (Headset/Microphone)
The PIC32MX350F128L-V/PT integrates a USB 2.0 Full-Speed device controller plus two I2S ports, enabling USB headset, USB microphone, and USB audio-class designs without an external CODEC in many cases. With 80 MHz CPU and 32 KB SRAM, isochronous USB audio at 48 kHz/16-bit stereo fits the bandwidth budget with headroom for the Microchip USB audio driver stack. The 100-pin TQFP exposes the secondary I2S for daisy-chained DSP/effects, and the 28-channel 10-bit ADC handles push-button and jack-detection inputs. Drop-in compatibility with PIC32MX350F256L-V/PT allows firmware reuse when larger USB descriptors are required.
Recommended
Sensor Aggregation Nodes (IoT Edge)
The PIC32MX350F128L-V/PT's combination of 28-channel 10-bit ADC, two I2C, two SPI/I2S, two UART, and 80 MHz core makes it well-suited as an edge-of-network sensor aggregator that pre-processes analog and digital sensor data before forwarding over UART/SPI to a host MCU or radio module. The 32 KB SRAM buffers short time-series samples without external memory. The -V temp grade supports outdoor enclosure designs; the 100-pin TQFP retains headroom for expansion (additional UARTs via software bit-banging). Pin-compatible PIC32MX170F512L-V/PT upgrades flash to 512 KB for richer on-device analytics.
Recommended
Small-format Graphical Displays (TFT/QVGA)
Driving a 320x240 TFT display requires a parallel master port plus sufficient RAM for a frame buffer; the PIC32MX350F128L-V/PT provides PMP on PORTD/PORTF/PORTG and 32 KB SRAM, sufficient for a QVGA 16-bpp buffer. The 80 MHz core renders widgets, anti-aliased text, and 2D primitives from Microchip's Graphics Library at acceptable frame rates. The 100-pin TQFP keeps signal-trace fanout easy to route. Drop-in compatibility with PIC32MX570F512L-V/PT enables higher-performance rendering if scene complexity grows.
Recommended
Automotive Under-hood (-V Temperature)
The PIC32MX350F128L-V/PT -V temp rating (-40C to +105C) targets automotive under-hood environments such as engine-bay sensor modules, HVAC actuators, and lighting controllers. The 80 MHz core handles CAN-based J1939 stacks, while the integrated ADC and comparators interface directly with thermistors, pressure sensors, and current shunts. The 100-pin TQFP is acceptable for hand-repairable automotive ECUs; high-volume modules typically migrate to QFN. Pin-compatible parts ensure long-term supply.
Recommended
Low-cost Motor Control (BLDC / Stepper)
The PIC32MX350F128L-V/PT's five 16-bit timers, two analog comparators, and 80 MHz core support sensorless BLDC, brushed DC, and stepper motor control loops when paired with external gate drivers. The 10-bit ADC samples back-EMF and current at sufficient rates for low-RPM applications. The 100-pin TQFP provides GPIO for Hall-sensor inputs, fault flags, and PWM outputs. Pin-compatible PIC32MX270F256L-V/PT upgrades flash for complex FOC-less commutation algorithms.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX350F128L-V/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX350F128L-I/PT | PIC32MX350F128LT-V/PT | PIC32MX270F256L-V/PT | PIC32MX170F512L-V/PT | PIC32MX350F256L-V/PT | PIC32MX340F128L-80V/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PT) 12x12 mm | TQFP-100 (PT) 12x12 - same | TQFP-100 (PT) 12x12 - same | TQFP-100 (PT) 12x12 - same | TQFP-100 (PT) 12x12 - same | TQFP-100 (PT) 12x12 - same | TQFP-100 (PT) 12x12 - same |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Maximum Clock Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 50 MHz | 80 MHz | 80 MHz |
| Program Memory Size | 128 KB Flash | 128 KB | 128 KB | 256 KB | 512 KB | 256 KB | 128 KB |
| RAM Size | 32 KB | 32 KB | 32 KB | 64 KB | 64 KB | 32 KB | 32 KB |
| Operating Temperature | -40C to +105C (-V) | -40C to +85C (-I) | -40C to +105C (-V) | -40C to +105C (-V) | -40C to +105C (-V) | -40C to +105C (-V) | -40C to +105C (-V) |
| USB 2.0 Device | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | No | Yes (Full-Speed) | No |
| Parallel Master Port (PMP) | Yes | Yes | Yes | Yes | No | Yes | No |
| Unit Price @ 100 (USD, as of 2026-10-02) | $3.75 | approx $3.60 | approx $3.75 (T&R) | approx $4.20 | approx $4.50 | approx $4.10 | approx $3.50 (older) |
Key Differentiators
- Extended -V temperature grade for harsh environments (vs PIC32MX350F128L-I/PT)
- Larger Flash option within same package (vs PIC32MX270F256L-V/PT)
- On-chip USB 2.0 Full-Speed device plus parallel master port (vs PIC32MX170F512L-V/PT)
Design Notes
The PIC32MX350F128L-V/PT requires a regulated 2.3-3.6 V rail; use a low-noise LDO such as Microchip MCP1700 or equivalent rated for at least 100 mA peak. Place a 10 uF + 0.1 uF decoupling network within 5 mm of each VDD/VSS pin pair, plus 4.7 uF + 0.1 uF on AVDD/AVSS. The VUSB pin (when USB is used) needs its own filtered 3.3 V from the internal voltage regulator; reference Microchip AN-Harmonics-1 for proper USB power sequencing.
Keep the primary 8/16 MHz crystal traces short (< 5 mm) and symmetric; place the crystal within 5 mm of OSC1/OSC2. Route USB DP/DM as a 90-ohm impedance differential pair with no stubs. The parallel master port (PMP) signals on PORTD/PORTF/PORTG should be length-matched to within 50 mil for QVGA displays to avoid skew.
Do not confuse -V (extended -40 to +105C), -I (industrial -40 to +85C), and -E (extended -40 to +125C) temperature grades - they share the same die but different screening. Do not apply >3.6 V to any I/O; the M4K core does not tolerate 5 V. Enable the JTAGEN fuse only when needed, as it consumes ~5 mA. Programming pins PGECx/PGEDx must be accessible for ICSP regardless of final pin assignment.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this MCU targets general industrial; AEC-Q100 variants are typically under the automotive PIC32MX designation. Halogen-free status not explicitly stated in the verified data.