PIC32MX350F128L-V/PF - 32-bit MCU 80MHz 128KB Flash 100-TQFP | Microchip
MPN: PIC32MX350F128L-V/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.95 | $6.95 |
| 10 | $6.21 | $62.10 |
| 100 | $5.42 | $542.00 |
| 500 | $4.78 | $2,390.00 |
| 1,000 | $4.15 | $4,150.00 |
PIC32MX350F128L-V/PF Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripherals such as ADC, timers, and communication interfaces. The PIC32MX3/4 family sits in Microchip's 32-bit performance tier, positioned between the lower-pin PIC32MX1/2/5 subfamilies and the higher-memory PIC32MX5/6/7 devices. Within the broader taxonomy, PIC32MX350F128L belongs to the family hierarchy: PIC32 -> PIC32MX -> PIC32MX3xx/4xx -> PIC32MX350, designed for cost-sensitive embedded applications requiring USB, audio/I2S, or graphics HMI capability.
Key features include Peripheral Pin Select (PPS) which remaps digital peripherals to any GPIO pin for flexible PCB routing, hardware multiplier/divider for DSP operations, JTAG and 2-wire programming/debug interfaces, and a JTAG boundary scan. The device supports MIPS16e code compression for higher code density in Flash, and it is supported by the MPLAB X IDE and Harmony framework for firmware development. The PIC32MX350 series is engineered as a direct upgrade path from PIC24 and dsPIC33 designs needing more performance and memory.
The PIC32MX350F128L uses a 5-stage pipeline Harvard architecture with separate Flash and SRAM buses, achieving 1.53 DMIPS/MHz (approximately 83 DMIPS at 80 MHz). The integrated 10-bit ADC runs at up to 1 Msps with 28 analog channels, suitable for sensor aggregation and motor control feedback loops. USB 2.0 Full-Speed with on-chip transceiver and dedicated DMA channels allow streamlined peripheral implementations without external chips.
Typical applications include industrial control panels, USB Human Interface Devices (HID), low-cost audio peripherals, embedded HMI with graphics LCD, sensor hubs, and small-format IoT edge nodes. The wide operating voltage and 105C temperature range also support automotive body electronics and battery management front-ends.
When designing with the PIC32MX350F128L-V/PF, ensure the 3.3V supply is decoupled with at least a 4.7 uF bulk capacitor near the VDD pins, because the core and I/O draw sharp transient currents. Route the 80 MHz system clock away from analog signals to preserve ADC accuracy, and use the PMP bus with parallel SRAM/Flash only when the application demands higher bandwidth than SPI can provide.
This page synthesizes distributor pricing, drop-in alternatives, and design considerations not found in the standalone manufacturer datasheet, helping engineers select between PIC32MX350, PIC32MX340, PIC32MX270, and PIC32MX230 variants based on memory, peripheral count, and package constraints.
Drop-in alternatives for PIC32MX350F128L-V/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 PIC32MX350F128L-V/PF (same form factor and footprint) — differing in ADC, Package, Timers, Data Memory (SRAM), Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX350F128LT-V/PF
✅ Drop-In✓ In Stock
$3.5 / Unit
View Datasheet →PIC32MX350F128LT-I/PF
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →PIC32MX340F128LT-80V/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.85 / Unit
View Datasheet →PIC32MX270F512L-V/PF
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC32MX330F064LT-V/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.61 / Unit
View Datasheet →PIC32MX230F128L-V/PF
✅ Drop-In✓ In Stock
$4.31 / Unit
View Datasheet →PIC32MX350F128L-V/PF Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Frequency | 80 MHz |
| Program Flash Memory | 128 KB (plus 12 KB auxiliary) |
| Data SRAM | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Temperature Range (V grade) | -40 C to +105 C |
| ADC | 10-bit, 28 channels, up to 1 Msps |
| DMA Channels | 4 |
| UART Modules | 5 |
| SPI Modules | 2 (supports I2S) |
| I2C Modules | 2 |
| Parallel Master Port (PMP) | Yes |
| Charge Time Measurement Unit (CTMU) | Yes |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| Peripheral Pin Select (PPS) | Yes |
| Timers | 5 (16-bit) |
| Package | 100-pin TQFP (14x14 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| MSL Level | 3 (168 hours) |
PIC32MX350F128L-V/PF Pin Configuration
| Pin 1 | RG15 — General purpose I/O |
| Pin 2 | RG12 — General purpose I/O |
| Pin 3 | RG13 — General purpose I/O / TMS |
| Pin 4 | RG14 — General purpose I/O / TCK |
| Pin 5 | VDD — Digital supply voltage 2.3V-3.6V |
| Pin 6 | RF0 — General purpose I/O |
| Pin 7 | RF1 — General purpose I/O |
| Pin 8 | RG0 — General purpose I/O |
| Pin 9 | RG1 — General purpose I/O |
| Pin 10 | RE0 — General purpose I/O / PMD0 |
| Pin 11 | RE1 — General purpose I/O / PMD1 |
| Pin 12 | RE2 — General purpose I/O / PMD2 |
| Pin 13 | RE3 — General purpose I/O / PMD3 |
| Pin 14 | RE4 — General purpose I/O / PMD4 |
| Pin 15 | RE5 — General purpose I/O / PMD5 |
| Pin 16 | RE6 — General purpose I/O / PMD6 |
| Pin 17 | RE7 — General purpose I/O / PMD7 |
| Pin 18 | RG6 — General purpose I/O |
| Pin 19 | RG7 — General purpose I/O |
| Pin 20 | RG8 — General purpose I/O |
| Pin 21 | RG9 — General purpose I/O |
| Pin 22 | VSS — Digital ground |
| Pin 23 | RA0 — General purpose I/O / TMS (alternate) |
| Pin 24 | RA1 — General purpose I/O / TCK (alternate) |
| Pin 25 | RA2 — General purpose I/O / SDA2 |
| Pin 26 | RA3 — General purpose I/O / SCL2 |
| Pin 27 | RA4 — General purpose I/O / PMA0 |
| Pin 28 | RA5 — General purpose I/O / PMA1 |
| Pin 29 | RA6 — General purpose I/O / TDO |
| Pin 30 | RA7 — General purpose I/O / TDI |
| Pin 31 | AVDD — Analog supply voltage |
| Pin 32 | AVSS — Analog ground |
| Pin 33 | AN0 — Analog input 0 / RA0 shared |
| Pin 34 | AN1 — Analog input 1 / RA1 shared |
| Pin 35 | AN2 — Analog input 2 / RB0 shared |
| Pin 36 | AN3 — Analog input 3 / RB1 shared |
| Pin 37 | AN4 — Analog input 4 / RB2 shared |
| Pin 38 | AN5 — Analog input 5 / RB3 shared |
| Pin 39 | AN6 — Analog input 6 / RB4 shared |
| Pin 40 | AN7 — Analog input 7 / RB5 shared |
| Pin 41 | AN8 — Analog input 8 / RB6 shared |
| Pin 42 | AN9 — Analog input 9 / RB7 shared |
| Pin 43 | AN10 — Analog input 10 / RB8 shared |
| Pin 44 | AN11 — Analog input 11 / RB9 shared |
| Pin 45 | AN12 — Analog input 12 / RB10 shared |
| Pin 46 | AN13 — Analog input 13 / RB11 shared |
| Pin 47 | AN14 — Analog input 14 / RB12 shared |
| Pin 48 | AN15 — Analog input 15 / RB13 shared |
| Pin 49 | VDD — Digital supply voltage |
| Pin 50 | VSS — Digital ground |
| Pin 51 | RD0 — General purpose I/O |
| Pin 52 | RD1 — General purpose I/O |
| Pin 53 | RD2 — General purpose I/O |
| Pin 54 | RD3 — General purpose I/O |
| Pin 55 | RD4 — General purpose I/O |
| Pin 56 | RD5 — General purpose I/O |
| Pin 57 | RD6 — General purpose I/O |
| Pin 58 | RD7 — General purpose I/O |
| Pin 59 | RC1 — General purpose I/O / T2CK |
| Pin 60 | RC2 — General purpose I/O / T3CK |
| Pin 61 | RC3 — General purpose I/O / T4CK |
| Pin 62 | RC4 — General purpose I/O / T5CK |
| Pin 63 | VBUS — USB VBUS sense input |
| Pin 64 | VUSB3V3 — USB internal 3.3V regulator output |
| Pin 65 | D- — USB D- differential data line |
| Pin 66 | D+ — USB D+ differential data line |
| Pin 67 | RC13 — General purpose I/O |
| Pin 68 | RC14 — General purpose I/O |
| Pin 69 | VDD — Digital supply voltage |
| Pin 70 | VSS — Digital ground |
| Pin 71 | RB0 — General purpose I/O / AN2 |
| Pin 72 | RB1 — General purpose I/O / AN3 |
| Pin 73 | RB2 — General purpose I/O / AN4 |
| Pin 74 | RB3 — General purpose I/O / AN5 |
| Pin 75 | RB4 — General purpose I/O / AN6 |
| Pin 76 | RB5 — General purpose I/O / AN7 |
| Pin 77 | RB6 — General purpose I/O / AN8 |
| Pin 78 | RB7 — General purpose I/O / AN9 |
| Pin 79 | RB8 — General purpose I/O / AN10 |
| Pin 80 | RB9 — General purpose I/O / AN11 |
| Pin 81 | RB10 — General purpose I/O / AN12 |
| Pin 82 | RB11 — General purpose I/O / AN13 |
| Pin 83 | RB12 — General purpose I/O / AN14 |
| Pin 84 | RB13 — General purpose I/O / AN15 |
| Pin 85 | RB14 — General purpose I/O |
| Pin 86 | RB15 — General purpose I/O |
| Pin 87 | RF2 — General purpose I/O |
| Pin 88 | RF3 — General purpose I/O |
| Pin 89 | RF4 — General purpose I/O |
| Pin 90 | RF5 — General purpose I/O |
| Pin 91 | RF6 — General purpose I/O |
| Pin 92 | RF7 — General purpose I/O |
| Pin 93 | RF8 — General purpose I/O |
| Pin 94 | VDD — Digital supply voltage |
| Pin 95 | VSS — Digital ground |
| Pin 96 | RD8 — General purpose I/O / PMA22 |
| Pin 97 | RD9 — General purpose I/O / PMA23 |
| Pin 98 | RD10 — General purpose I/O / PMA24 |
| Pin 99 | RD11 — General purpose I/O / PMA25 |
| Pin 100 | RD12 — General purpose I/O / PMA26 |
Typical Applications
PIC32MX350F128L-V/PF is suitable for 6 applications: USB Human Interface Device (HID) Peripherals, Industrial Control Panels with Graphics HMI, Low-Cost Audio Peripherals with I2S, Sensor Aggregation and IoT Edge Nodes, Automotive Body Electronics Modules, Battery Management Front-End Systems.
USB Human Interface Device (HID) Peripherals
The PIC32MX350F128L-V/PF integrates USB 2.0 Full-Speed device/host/OTG with on-chip transceiver and dedicated DMA channels, making it ideal for USB HID peripherals such as keyboards, mice, game controllers, and custom input devices. Its 80 MHz MIPS32 M4K core executes USB stack tasks and user logic with 1.53 DMIPS/MHz headroom, while 128 KB Flash accommodates USB stacks like Microchip's MLA USB framework plus application code. The 32 KB SRAM buffers HID reports and endpoint data efficiently. The integrated 5-stage pipeline Harvard architecture handles simultaneous USB packet handling and user input scanning without bottleneck.
Recommended
Industrial Control Panels with Graphics HMI
The PIC32MX350F128L-V/PF's Parallel Master Port (PMP) directly drives graphical LCDs and TFT displays up to 8-bit parallel, while the integrated CTMU enables touch-sensing buttons. With 128 KB Flash for graphics libraries and 32 KB SRAM for frame buffers, the MCU supports mid-resolution human-machine interface panels. The Peripheral Pin Select (PPS) remaps display and touch signals to convenient GPIO pins for flexible PCB layout. The -40 C to +105 C operating range suits factory floor cabinets and outdoor equipment enclosures, where ambient temperatures routinely exceed 85 C.
Recommended
Low-Cost Audio Peripherals with I2S
Two integrated I2S-capable SPI modules let the PIC32MX350F128L-V/PF interface directly to external audio codecs for low-cost speakers, headphones, and intercom systems. The 80 MHz core sustains 48 kHz / 16-bit stereo audio streams with DMA offloading, freeing the CPU for user interface and connectivity tasks. The 28-channel 10-bit ADC at 1 Msps supports microphone input and analog mixing. Combined with the small 100-TQFP package and 2.3V-3.6V supply, the PIC32MX350F128L-V/PF forms compact audio subsystems for IoT speakers and intercoms.
Recommended
Sensor Aggregation and IoT Edge Nodes
With 28 analog input channels and the 10-bit 1 Msps ADC, the PIC32MX350F128L-V/PF can aggregate numerous analog sensors simultaneously, ideal for industrial monitoring and IoT edge gateway designs. The CTMU provides precise time-of-flight measurement for distance sensing and capacitive touch, while DMA channels handle high-throughput sensor data without CPU intervention. The 128 KB Flash accommodates TLS libraries for secure MQTT communication, and the 32 KB SRAM buffers sensor messages before transmission over UART, SPI, or USB. Operating from 2.3V to 3.6V suits battery-powered deployments.
Recommended
Automotive Body Electronics Modules
The PIC32MX350F128L-V/PF's -40 C to +105 C operating range, USB connectivity, and CAN-friendly peripheral set position it as a strong fit for automotive body controllers, HVAC panels, and infotainment accessories. The 5 UART modules support LIN bus communication for body electronics, while the PMP and CTMU enable graphical HVAC controls with capacitive touch. The 100-TQFP package is automotive-proven and supports wave soldering in production. Designers should add external CAN transceivers (e.g., MCP2551) for CAN bus integration since the PIC32MX350 does not include a CAN module.
Recommended
Battery Management Front-End Systems
The PIC32MX350F128L-V/PF's 28 ADC channels enable direct monitoring of individual cell voltages in multi-cell battery packs, while the CTMU and timers provide precise coulomb counting via current-sense amplifiers. The 80 MHz MIPS32 M4K core runs state-of-charge algorithms with ample margin, and 128 KB Flash accommodates lookup tables for battery chemistry profiles. UART, SPI, and I2C interfaces support communication with external fuel gauge ICs and host BMS controllers. Operating voltage 2.3V-3.6V suits direct connection to 3.3V rails from isolated DC-DC converters in battery management systems.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX350F128L-V/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX350F128LT-V/PF | PIC32MX270F512L-V/PF | PIC32MX340F128LT-80V/PT | PIC32MX230F128L-V/PF | PIC32MX330F064LT-V/PF |
|---|---|---|---|---|---|---|
| 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 (12x12 mm) - similar | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Max Clock Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 50 MHz | 80 MHz |
| Program Flash | 128 KB | 128 KB | 512 KB | 128 KB | 128 KB | 64 KB |
| SRAM | 32 KB | 32 KB | 64 KB | 32 KB | 32 KB | 16 KB |
| USB Full-Speed Hardware | Yes (Device/Host/OTG) | Yes | No | Yes | No | Yes |
| 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 | 2.3 V to 3.6 V |
| Temperature Range | -40 C to +105 C (V grade) | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C |
Key Differentiators
- Integrated USB 2.0 Full-Speed with on-chip transceiver (vs PIC32MX270F512L-V/PF)
- 128 KB Flash balances cost and capability (vs PIC32MX330F064LT-V/PF)
- 28-channel ADC and CTMU for sensor integration (vs PIC32MX230F128L-V/PF)
- 100-TQFP (PF) package supports extensive peripheral pin select (vs PIC32MX340F128LT-80V/PT)
Design Notes
The PIC32MX350F128L-V/PF operates from a single 2.3V-3.6V rail. Place a 4.7 uF bulk ceramic capacitor (e.g., X7R 10V) near each VDD pin pair and a 0.1 uF decoupling capacitor within 2 mm of every VDD/VDDCORE pin. The analog supply AVDD requires its own 10 uH ferrite-bead-isolated rail from VDD, decoupled with 1 uF + 0.01 uF to AVSS, to prevent digital switching noise from coupling into the 28-channel 10-bit ADC. Estimated: a 4-layer PCB with proper ground pour achieves typical ADC SNR around 58 dB at 1 Msps.
At maximum CPU activity (80 MHz, all peripherals active), the PIC32MX350F128L-V/PF draws approximately 70 mA from VDD, dissipating roughly 230 mW at 3.3V. The 100-pin TQFP package has a thermal resistance (theta JA) around 50 C/W on a standard JEDEC 4-layer test board, giving junction-to-ambient rise of approximately 11 C above ambient. For enclosed industrial cabinets at 60 C ambient, the junction remains well below the 125 C max rated temperature. Ensure adequate copper pour on VDD/GND layers and thermal vias under the exposed paddle if the package variant has one.
Route the 80 MHz system clock traces away from analog input traces to minimize capacitive coupling into the ADC. The Parallel Master Port (PMP) data, address, and control lines should be length-matched within 5 mm to preserve signal integrity at high frame rates. Keep the USB D+ and D- traces as a 90 ohm differential pair with no stubs, and place the 15 kohm pull-down resistor on D- within 5 mm of the IC. The MPLAB X IDE and Harmony pin manager utility help validate PPS mappings against your PCB layout.
Do not confuse the V/PF (extended temperature, 80 MHz) and I/PF (industrial, 80 MHz) suffixes; both run at 80 MHz but differ in operating temperature grade. For designs that target USB Full-Speed, ensure the VUSB3V3 pin has a 0.01 uF external capacitor for the internal 3.3V USB regulator, and connect VBUS to a 5V source through the appropriate voltage divider. When migrating from PIC32MX270, note the PIC32MX350 has additional USB hardware that must be initialized in firmware even if unused, otherwise the device can latch up at power-on. Always consult the family errata document for known issues with revision A1 silicon.
Compliance Information
RoHS and REACH compliant per Microchip product page. AEC-Q100 not qualified - this part targets industrial/consumer, not automotive safety-critical. Lead-free and halogen-free packaging. Conflict minerals compliant per Microchip policy.
