PIC32MX350F256L-V/TL - 80MHz 256KB Flash 32-bit MCU VTLA-124
MPN: PIC32MX350F256L-V/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.81 | $7.81 |
| 10 | $7.18 | $71.80 |
| 100 | $6.55 | $655.00 |
| 500 | $5.92 | $2,960.00 |
| 1,000 | $5.41 | $5,410.00 |
PIC32MX350F256L-V/TL Overview
A 32-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, Flash program memory, SRAM, and a rich set of peripherals (UART, SPI, I2C, ADC, timers, GPIO) on a single silicon die. MCUs sit at the top of the embedded computing hierarchy alongside microprocessors, but unlike standalone CPUs they include all required memory and I/O on-chip. The PIC32MX family specifically uses the MIPS M4K architecture, offering higher code density and deterministic interrupt latency versus 8-bit PIC MCUs, making them suitable for connectivity, HMI, and audio/graphics applications.
Key features of the PIC32MX350F256L-V/TL include 256 KB Flash, 64 KB SRAM, two analog comparators, two I2C ports, two SPI/I2S ports, 28-channel 10-bit ADC capability, five 16-bit timers/counters, and a full-speed USB 2.0 device/host/OTG controller. The device operates from 2.3V to 5.5V and consumes as little as 30 mA/MIPS in active mode, balancing performance with embedded power budgets.
Architecturally, the PIC32MX350F256L integrates a MIPS32 M4K core with a 5-stage pipeline, hardware multiply/accumulate (MAC), and a prefetch cache module that mitigates Flash wait-state penalties. The on-chip 10-bit ADC reaches 1 Msps across up to 28 channels with multiple internal triggers, and the USB peripheral supports low-speed, full-speed, and OTG operation. The PIC32MX3/4 family is supported by MPLAB X IDE, MCC code configurator, and a deep library of application notes.
Typical applications include industrial control panels, consumer HMI with touch sensing, USB peripherals (HID, CDC, audio), low-cost audio playback systems, and motor-control front-ends. The 124-pin VTLA package supports high GPIO count designs that need parallel buses, multiple UART channels, or large capacitive-touch button arrays.
When designing with this part, ensure the VTLA exposed pad is soldered to a sufficiently large copper area (recommended 1 in²) to meet the package's thermal dissipation requirement of approximately 19.5 °C/W. Decouple VDD/VUSB/VBUS with 0.1 µF and 10 µF ceramic capacitors placed close to the pins. Configure unused I/O as outputs low to minimize EMI. The -V temperature grade supports -40 °C to +105 °C.
This page synthesizes distributor pricing from DigiKey and Mouser, drop-in alternatives from the PIC32MX family, and practical design notes that go beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for PIC32MX350F256L-V/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 PIC32MX350F256L-V/TL (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Core Architecture, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX350F256LT-V/TL
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →PIC32MX350F256L-V/PT
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →PIC32MX350F256LT-V/PF
✅ Drop-In✓ In Stock
$6.2 / Unit
View Datasheet →PIC32MX370F512L-V/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX330F064L-I/TL
✅ Drop-In✓ In Stock
$3.96 / Unit
View Datasheet →PIC32MX350F256L-V/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Count | 1 (Single-Core) |
| Bit Width | 32-bit |
| Max CPU Speed | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Operating Voltage Range | 2.3 V to 5.5 V |
| ADC | 10-bit, up to 28 channels |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| SPI | 2 (SPI/I2S) |
| I2C | 2 |
| Analog Comparators | 2 |
| Timers | 5 x 16-bit |
| Operating Temperature Range | -40 °C to +105 °C (V grade) |
| Package | 124-pin VTLA (9x9 mm) with Exposed Pad |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC32MX350F256L-V/TL 124-pin vtla (9x9 mm) with exposed pad Pin Configuration Guide
Pin configuration for PIC32MX350F256L-V/TL (124-pin vtla (9x9 mm) with exposed pad 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 PIC32MX350F256L-V/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX350F256L-V/TL is suitable for 7 applications: USB HID / CDC Peripherals, Industrial HMI with Touch Sensing, Low-Cost Audio Playback / USB Audio, Sensor Aggregation / IoT Edge Node, Motor Control Front-End, Consumer Appliance Controllers, Medical Device Sub-Systems.
USB HID / CDC Peripherals
The PIC32MX350F256L-V/TL's integrated USB 2.0 Full-Speed controller with on-chip transceiver and pull-up/pull-down resistors makes it ideal for USB Human Interface Devices and Communication Device Class peripherals (keyboards, mice, custom HID, CDC serial bridges). With 80 MHz MIPS M4K core providing 1.53 DMIPS/MHz, the MCU easily services USB 1 ms polling intervals while leaving cycles for user firmware. The 256 KB Flash accommodates the Microchip USB stack, HID/CDC class drivers, and application code; the 64 KB SRAM holds USB endpoint buffers plus user buffers. Unlike external-phy solutions, no external USB components are required beyond a USB connector and ESD diode.
Recommended
Industrial HMI with Touch Sensing
The PIC32MX350F256L-V/TL suits industrial Human-Machine Interface panels requiring capacitive touch buttons, segment or TFT LCD control, and real-time response. Its 28-channel 10-bit ADC, hardware CTMU for capacitive sensing, and large GPIO on the VTLA-124 package enable 16-32 touch channels plus a 16-bit PMP interface to a small TFT. 80 MHz MIPS performance drives simple graphics libraries and debounces touch events with deterministic interrupt latency. Operates directly from 24 V industrial rails via a buck converter to its 3.3 V core supply. Industrial temperature -V variant supports -40 °C to +105 °C cabinet environments.
Recommended
Low-Cost Audio Playback / USB Audio
The PIC32MX350F256L-V/TL supports low-cost audio playback via its dual SPI/I2S interfaces and PWM output. With I2S, the MCU can drive an external DAC like the PCM5102A for 16-bit / 44.1 kHz playback from internal storage. The two I2S channels also enable microphone capture for basic voice recorders. The MIPS M4K core provides enough cycles for MP3/AAC software decoding, while 256 KB Flash stores small firmware decoders and 64 KB SRAM holds decoded audio buffers. The 28 ADC channels double as audio input channels for simple sounders or line-level capture.
Recommended
Sensor Aggregation / IoT Edge Node
The PIC32MX350F256L-V/TL integrates 28 ADC channels and multiple serial peripherals, making it well-suited for IoT edge nodes that aggregate temperature, pressure, and flow sensors. Two I2C buses allow redundant sensor arrays or simultaneous sensor-plus-EEPROM access; two SPI/I2S ports handle higher-speed sensors or RF transceivers. 256 KB Flash supports TLS client stacks when paired with ATECC608B secure element, while 64 KB SRAM holds JSON payloads. The 80 MHz core performs local decision-making and edge filtering before sending data over Wi-Fi/BLE companion modules.
Recommended
Motor Control Front-End
The PIC32MX350F256L-V/TL is well-suited as a motor-control front-end for low-power BLDC or stepper drives. Five 16-bit timers generate PWM signals for up to three-phase motor control with complementary outputs and dead-band insertion. The 28 ADC channels sample phase currents, bus voltage, and temperature at 1 Msps for field-oriented control algorithms. 80 MHz MIPS performance executes sensorless FOC algorithms in firmware. Hardware QEI interfaces quadrature peripherals for sensored BLDC operation, simplifying firmware and reducing interrupt load.
Recommended
Consumer Appliance Controllers
The PIC32MX350F256L-V/TL drives consumer white-goods controllers (washing machines, dishwashers, ovens) with its abundant GPIO, timers, and ADC. 80 MHz MIPS runs user-interface logic, sensor sampling, and safety monitoring with deterministic interrupt latency. The 5.5 V supply tolerance simplifies interfacing to 5 V sensors and triac drivers in mains-powered equipment. The -V extended temperature grade (-40 °C to +105 °C) covers appliance cabinet environments. 256 KB Flash holds safety-certified firmware and update image slots for OTA or service-port upgrades.
Recommended
Medical Device Sub-Systems
The PIC32MX350F256L-V/TL integrates the MIPS M4K core with 256 KB Flash and 64 KB SRAM at 80 MHz, fitting non-sub-medical sub-systems such as patient-monitor front panels, infusion-pump user interfaces, and diagnostic-equipment data acquisition. Its 28 ADC channels digitize analog front-end signals at 10-bit resolution, and 5 timers drive precise PWM outputs. The on-chip USB enables data export to laptops for clinician review. 256 KB Flash stores user-interface strings and configuration; 64 KB SRAM captures waveform buffers and trending data.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX350F256L-V/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX350F256LT-V/TL | PIC32MX370F512L-V/PT | PIC32MX330F064L-I/TL |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 124-pin VTLA (9x9 mm) | 124-pin VTLA (9x9 mm) | 100-pin TQFP (PT) | 124-pin VTLA (9x9 mm) |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Max CPU Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 256 KB | 256 KB | 512 KB | 64 KB |
| SRAM | 64 KB | 64 KB | 128 KB | 16 KB |
| 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 |
| ADC Channels | 28 channels | 28 channels | 28 channels | 28 channels |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Temperature Grade | -40 °C to +105 °C (V) | -40 °C to +105 °C (V) | -40 °C to +105 °C (V) | -40 °C to +85 °C (I) |
Key Differentiators
- Larger Flash in same VTLA-124 footprint (vs PIC32MX330F064L-I/TL)
- Smaller Flash but larger upgrade headroom (vs PIC32MX370F512L-V/PT)
- Extended temperature grade for industrial (vs PIC32MX350F256L-I/TL)
Design Notes
Estimated: The VTLA-124 package has a center exposed thermal pad (EP) that must be soldered to a copper area of at least 1 square inch (≈6.45 cm²) on the top layer. Without this thermal pad connection, EP rise exceeds the rated thermal resistance of ~19.5 °C/W and may trigger thermal shutdown at high MIPS workloads. Place 0.1 µF and 10 µF ceramic decoupling capacitors as close as possible to each VDD/VSS pin. Connect each unused PCB (LP) to a defined logic level (output low preferred) to minimize EMI.
The PIC32MX350F256L-V/TL requires a clean 2.3 V to 5.5 V supply on VDD plus a 3.3 V supply on VUSB when USB is enabled. Use a ferrite bead or pi-filter between VBUS/VUSB and the analog 3.3 V rail to isolate USB noise from sensitive analog circuits. Add 4.7 µF bulk capacitance on VDD if the device drives significant GPIO load. The brown-out reset and voltage regulator (LVR/LVD) modules require a minimum 4.7 µF on the core regulator output capacitor pin.
Do not enable the USB peripheral without a 3.3 V supply on VUSB. Do not exceed 5.5 V on any I/O pin; use level shifters when interfacing 5 V peripherals to the 3.3 V digital rails. Always configure the JTAG/TRACE pins (TMS, TCK, TDI, TDO) as either trace or GPIO - leaving them floating allows accidental in-system programming. The Configuration bits must be set correctly to enable the PLL and select the appropriate oscillator source. Forgetting to set the FWDT (watchdog) Configuration correctly can cause unintended resets during development.
Estimated: At 80 MHz CPU, full USB traffic, all timers active, and all peripherals on, the part draws approximately 30 mA/MIPS active current per the family datasheet. At 5.0 V VDD, this is about 1.5 W worst case. With a 19.5 °C/W thermal resistance, the junction rises 29 °C above ambient - acceptable up to ~75 °C ambient. Derate by enabling sleep modes during low-duty cycles, and ensure adequate ventilation or copper pour around the EP. Use the PIC32MX370F512L upgrade path if your thermal budget is exceeded.
Compliance Information
RoHS and lead-free compliance per Microchip product page and DigiKey listing. AEC-Q100 automotive grade NOT qualified - choose PIC32MX350F256L-V/TL for industrial, not automotive. Conflict-minerals compliance per Microchip corporate policy.
