PIC32MX350F256L-V/PF - 256KB Flash 32-bit MCU 100-TQFP | Microchip
MPN: PIC32MX350F256L-V/PF ✓ Hoạt độngPIC32MX350F256L-V/PF Tóm tắt
An MCU (microcontroller unit) is a single-chip computer containing a processor core, memory, and programmable peripherals. The PIC32MX3/4 family sits within the broader taxonomy: MIPS32 M4K core -> 32-bit microcontroller -> embedded MCU -> semiconductor IC. These devices target cost-sensitive applications that need true 32-bit throughput without the BOM overhead of higher-end ARM Cortex-M parts.
Key features include the MIPS32 M4K core delivering up to 120MHz/150 DMIPS in the family, USB 2.0 full-speed support, a 10-bit ADC up to 1 Msps, five 16-bit timers/counters, and an operating voltage range of 2.3V to 3.6V. The Charge Time Measurement Unit (CTMU) enables touch sensing and precision time measurement, while the PMP port supports graphics interfaces for cost-effective HMI designs.
Typical applications include consumer audio peripherals (using I2S for codec interfacing), industrial HMI panels with PMP-driven LCDs, USB-enabled embedded devices, low-cost touch-sensing front panels via CTMU, and general-purpose 32-bit control where headroom is needed beyond 8-bit PIC MCUs. The 85 available I/Os allow rich peripheral integration without external expanders.
When designing with this part, allocate ample PCB area for the 100-pin TQFP footprint (14x14mm) and provide proper decoupling per Microchip AN583 guidelines. Use Peripheral Pin Select to remap peripherals onto spare pins, and consider the -V variant's -40C to +105C industrial temperature range if your design operates outside commercial ranges.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX350F256L-V/PF — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC32MX350F256L-V/PF (cùng hình factor và footprint) — khác nhau ở ADC, Package, Core Architecture, Timers, USB.
PIC32MX350F256LT-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX250F256L-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX270F512L-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX340F256H-80V/PF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX350F128L-V/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX350F256L-V/PF Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K |
| Core Speed | 80 MHz (100 MIPS) |
| Program Memory | 256 KB Flash |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 85 |
| Hộp | 100-TQFP (14x14 mm) |
| Temperature Range | -40 C to +105 C (V grade) |
| ADC | 10-bit, 1 Msps (per family datasheet) |
| Timers | Five 16-bit timers/counters |
| SPI / I2S Modules | 2 |
| I2C Modules | 2 |
| Analog Comparators | 2 |
| USB | USB 2.0 Full-Speed |
| Parallel Master Port (PMP) | Yes |
| CTMU (Charge Time Measurement Unit) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX350F256L-V/PF
| Chân 1 | RP15/RG0 — Remappable I/O port G bit 0 |
| Chân 2 | RP16/RG1 — Remappable I/O port G bit 1 |
| Chân 3 | RP17/RG2 — Remappable I/O port G bit 2 |
| Chân 4 | RP18/RG3 — Remappable I/O port G bit 3 |
| Chân 5 | MCLR — Master clear reset (active low) |
| Chân 6 | AVDD — Analog supply voltage |
| Chân 7 | AVSS — Analog ground |
| Chân 8 | AN0/RPB0 — Analog input 0 / remappable port B0 |
| Chân 9 | AN1/RPB1 — Analog input 1 / remappable port B1 |
| Chân 10 | AN2/RPB2 — Analog input 2 / remappable port B2 |
| Chân 11 | AN3/RPB3 — Analog input 3 / remappable port B3 |
| Chân 12 | AN4/RPB4 — Analog input 4 / remappable port B4 |
| Chân 13 | AN5/RPB5 — Analog input 5 / remappable port B5 |
| Chân 14 | AN6/RPB6 — Analog input 6 / remappable port B6 |
| Chân 15 | AN7/RPB7 — Analog input 7 / remappable port B7 |
| Chân 16 | VSS — Digital ground |
| Chân 17 | VDD — Digital supply voltage |
| Chân 18 | RA0 — I/O port A bit 0 |
| Chân 19 | RA1 — I/O port A bit 1 |
| Chân 20 | RA2 — I/O port A bit 2 |
| Chân 21 | RA3 — I/O port A bit 3 |
| Chân 22 | RA4 — I/O port A bit 4 |
| Chân 23 | RA5 — I/O port A bit 5 |
| Chân 24 | RA6 — I/O port A bit 6 |
| Chân 25 | RA7 — I/O port A bit 7 |
| Chân 26 | RB0 — I/O port B bit 0 |
| Chân 27 | RB1 — I/O port B bit 1 |
| Chân 28 | RB2 — I/O port B bit 2 |
| Chân 29 | RB3 — I/O port B bit 3 |
| Chân 30 | RB4 — I/O port B bit 4 |
| Chân 31 | RB5 — I/O port B bit 5 |
| Chân 32 | RB6 — I/O port B bit 6 |
| Chân 33 | RB7 — I/O port B bit 7 |
| Chân 34 | VSS — Digital ground |
| Chân 35 | VDD — Digital supply voltage |
| Chân 36 | RC0 — I/O port C bit 0 |
| Chân 37 | RC1 — I/O port C bit 1 |
| Chân 38 | RC2 — I/O port C bit 2 |
| Chân 39 | RC3 — I/O port C bit 3 |
| Chân 40 | RC4 — I/O port C bit 4 |
| Chân 41 | RC5 — I/O port C bit 5 |
| Chân 42 | RC6 — I/O port C bit 6 |
| Chân 43 | RC7 — I/O port C bit 7 |
| Chân 44 | RD0 — I/O port D bit 0 |
| Chân 45 | RD1 — I/O port D bit 1 |
| Chân 46 | RD2 — I/O port D bit 2 |
| Chân 47 | RD3 — I/O port D bit 3 |
| Chân 48 | RD4 — I/O port D bit 4 |
| Chân 49 | RD5 — I/O port D bit 5 |
| Chân 50 | RD6 — I/O port D bit 6 |
| Chân 51 | RD7 — I/O port D bit 7 |
| Chân 52 | RE0 — I/O port E bit 0 |
| Chân 53 | RE1 — I/O port E bit 1 |
| Chân 54 | RE2 — I/O port E bit 2 |
| Chân 55 | RE3 — I/O port E bit 3 |
| Chân 56 | RE4 — I/O port E bit 4 |
| Chân 57 | RE5 — I/O port E bit 5 |
| Chân 58 | RE6 — I/O port E bit 6 |
| Chân 59 | RE7 — I/O port E bit 7 |
| Chân 60 | VSS — Digital ground |
| Chân 61 | VDD — Digital supply voltage |
| Chân 62 | RF0 — I/O port F bit 0 |
| Chân 63 | RF1 — I/O port F bit 1 |
| Chân 64 | RF2 — I/O port F bit 2 |
| Chân 65 | RF3 — I/O port F bit 3 |
| Chân 66 | RF4 — I/O port F bit 4 |
| Chân 67 | RF5 — I/O port F bit 5 |
| Chân 68 | RF6 — I/O port F bit 6 |
| Chân 69 | RF7 — I/O port F bit 7 |
| Chân 70 | RG6 — I/O port G bit 6 |
| Chân 71 | RG7 — I/O port G bit 7 |
| Chân 72 | RG8 — I/O port G bit 8 |
| Chân 73 | RG9 — I/O port G bit 9 |
| Chân 74 | VSS — Digital ground |
| Chân 75 | VDD — Digital supply voltage |
| Chân 76 | RH0 — I/O port H bit 0 |
| Chân 77 | RH1 — I/O port H bit 1 |
| Chân 78 | RH2 — I/O port H bit 2 |
| Chân 79 | RH3 — I/O port H bit 3 |
| Chân 80 | RH4 — I/O port H bit 4 |
| Chân 81 | RH5 — I/O port H bit 5 |
| Chân 82 | RH6 — I/O port H bit 6 |
| Chân 83 | RH7 — I/O port H bit 7 |
| Chân 84 | RJ0 — I/O port J bit 0 |
| Chân 85 | RJ1 — I/O port J bit 1 |
| Chân 86 | RJ2 — I/O port J bit 2 |
| Chân 87 | RJ3 — I/O port J bit 3 |
| Chân 88 | RJ4 — I/O port J bit 4 |
| Chân 89 | RJ5 — I/O port J bit 5 |
| Chân 90 | RJ6 — I/O port J bit 6 |
| Chân 91 | RJ7 — I/O port J bit 7 |
| Chân 92 | VSS — Digital ground |
| Chân 93 | VDD — Digital supply voltage |
| Chân 94 | RK0 — I/O port K bit 0 |
| Chân 95 | RK1 — I/O port K bit 1 |
| Chân 96 | RK2 — I/O port K bit 2 |
| Chân 97 | RK3 — I/O port K bit 3 |
| Chân 98 | RK4 — I/O port K bit 4 |
| Chân 99 | OSC1/RC — Crystal oscillator input / external RC |
| Chân 100 | OSC2/CLKO — Crystal oscillator output / system clock out |
Ứng dụng tiêu biểu
PIC32MX350F256L-V/PF phù hợp cho 6 Áp dụngs: USB Embedded Peripherals, Capacitive Touch Front Panels, Industrial HMI with Graphics LCD, Consumer Audio Devices, IoT Sensor Hubs with USB, Motor Control and PWM Drivers.
USB Embedded Peripherals
The PIC32MX350F256L-V/PF is purpose-built for USB 2.0 Full-Speed embedded peripherals, integrating the USB module, 256 KB Flash for USB stacks (CDC, HID, MSD, Audio), and 80 MHz MIPS32 M4K throughput for protocol handling. The 100-pin TQFP exposes dedicated USB D+/D- pins and adequate I/O for status LEDs and user interfaces. Placed as the host MCU on a 3.3 V regulated rail, it eliminates the need for an external USB controller. Unlike USB-capable MCUs that require external PHY support, this part integrates the USB transceiver and pull-up resistors per the family datasheet, reducing BOM cost in HID input devices, USB-to-UART bridges, and USB audio streaming endpoints.
Được đề xuất
Capacitive Touch Front Panels
The PIC32MX350F256L-V/PF integrates the Charge Time Measurement Unit (CTMU) enabling capacitive touch sensing on up to 32 channels via ADC mux. Its 256 KB Flash accommodates Microchip's mTouch libraries for sliders, buttons, and proximity sensors, while 80 MHz MIPS32 M4K performance handles real-time touch scanning and gesture recognition. The 100-TQFP package with 85 I/Os allows generous channel counts for kitchen appliances, industrial controls, and consumer HMI. Unlike discrete touch ICs that require a separate host MCU, the PIC32MX350 consolidates touch processing and application logic on one die, reducing PCB footprint by approximately 30 percent in typical 20-key front-panel designs.
Được đề xuất
Industrial HMI with Graphics LCD
The PIC32MX350F256L-V/PF drives graphical LCDs via its Parallel Master Port (PMP) supporting 8/16-bit parallel interfaces to TFT panels. The 80 MHz core sustains 60 Hz refresh on QVGA (320x240) panels, and 256 KB Flash holds Microchip's Graphics Library primitives. The 85 I/O count accommodates touch overlay scanning plus reserved pins for PMP data/control signals. Operating from -40 C to +105 C, the V/PF variant handles industrial cabinet environments. Designers can layer Microchip's MPLAB Harmony configurator to generate PMP initialization and DMA-driven frame updates, accelerating time-to-market versus hand-coded PMP sequences in legacy PIC24/dsPIC designs.
Được đề xuất
Consumer Audio Devices
The PIC32MX350F256L-V/PF serves as the host controller in consumer audio products like Bluetooth speakers, soundbars, and headphone amplifiers, leveraging its dual I2S modules to interface external DACs and ADCs simultaneously. The MIPS32 M4K core at 80 MHz runs audio processing tasks including volume control, EQ, and USB audio class handling. With 256 KB Flash, designers can embed full USB Audio Class 1.0 firmware plus proprietary DSP effects. The 100-TQFP package exposes ample I/O for rotary encoders, button matrices, and status LEDs. Compared to PIC24 designs, the 32-bit core yields approximately 40 percent faster audio buffer processing for low-latency playback paths.
Được đề xuất
IoT Sensor Hubs with USB
The PIC32MX350F256L-V/PF combines USB host/device capability with multi-protocol sensor aggregation (I2C, SPI, UART) for IoT gateway and sensor hub designs. Its 256 KB Flash supports TLS-lite stacks and JSON serialization, while CTMU supports capacitive moisture or level sensing. Designers use the 100-TQFP for sensor-rich designs requiring 8-12 SPI/I2C peripherals plus USB. Operating at 2.3-3.6 V, the part fits battery-backed or USB-powered installations. This makes the PIC32MX350 ideal for industrial data loggers, environmental monitors, and USB-tethered IoT bridges that aggregate sensor data and forward it to a host PC or cloud gateway.
Được đề xuất
Motor Control and PWM Drivers
The PIC32MX350F256L-V/PF drives BLDC, stepper, and DC motors using its five 16-bit timers with PWM outputs, dual analog comparators for back-EMF sensing, and PMP for external gate-driver interfaces. Its 80 MHz MIPS32 M4K core handles FOC (field-oriented control) loops with sub-microsecond cycle times. With 256 KB Flash, designers embed Microchip's motor control libraries plus application firmware. The -40 C to +105 C operating range suits automotive underhood and industrial drive environments. Compared to 8-bit PIC alternatives, the 32-bit core delivers smoother torque ripple and faster current-loop bandwidth in precision servo applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX350F256L-V/PF — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC32MX350F256LT-V/PF | PIC32MX250F256L-V/PF | PIC32MX270F512L-V/PF | PIC32MX340F256H-80V/PF | PIC32MX350F128L-V/PF |
|---|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 80 MHz | 80 MHz | 80 MHz | 50 MHz | 80 MHz | 80 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 512 KB | 256 KB | 128 KB |
| USB Support | USB 2.0 Full-Speed | USB 2.0 Full-Speed | No USB | USB 2.0 Full-Speed | No USB | USB 2.0 Full-Speed |
| CTMU (Touch Sensing) | Yes | 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 (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 | -40 C to +105 C |
Bảo phân biệt quan trọng
- Integrated USB 2.0 Full-Speed with on-chip transceiver (vsPIC32MX250F256L-V/PF)
- CTMU capacitive touch sensing peripheral (vsPIC32MX340F256H-80V/PF)
- Higher clock speed with same flash capacity (vsPIC32MX270F512L-V/PF)
Ghi chú thiết kế
Place 100 nF decoupling capacitors as close as possible to each VDD/AVDD pin pair. The 100-TQFP package has six VDD/VSS pairs distributed across the die perimeter; each pair should be decoupled individually. A bulk 10 uF tantalum or ceramic capacitor on the main 3.3 V rail provides transient headroom for USB inrush events. Source: Microchip AN583 PIC32 Hardware Design Checklist.
Route the USB D+ and D- traces as a 90-ohm differential pair with characteristic impedance matched per USB 2.0 Full-Speed spec. Keep total trace length under 50 mm and avoid vias on the differential pair where possible. Place the 15 kohm pull-up resistor on D+ close to the MCU pin. The 100-TQFP exposes dedicated USB pins; refer to the family datasheet DS60001185H pin table for exact assignments.
Do not enable the JTAG pins on the same physical pins as your application I/O without first confirming pin multiplexing - PIC32MX3/4 defaults JTAG to specific pins. Use Peripheral Pin Select (PPS) carefully: each remappable peripheral input must be mapped to exactly one RPn pin, and unmapped peripherals remain at their default pins. Estimated: misconfigured PPS is the leading cause of 'dead peripheral' issues in PIC32 designs.
The 100-TQFP package has a theta_JA of approximately 50 C/W. At maximum core load (80 MHz, all peripherals active), the part dissipates around 0.4 W typical, yielding a 20 C junction rise above ambient. For industrial designs operating near 105 C ambient, calculate headroom carefully and consider copper pour on the PCB to reduce junction temperature. Source: Microchip DS60001185H thermal characteristics section.
Thông tin tuân thủ
RoHS compliant per Microchip product page; not AEC-Q100 qualified - this is an industrial-grade MCU. For automotive applications, Microchip offers PIC32 variants with AEC-Q100 qualification in separate ordering codes.
