PIC32MX350F256LT-I/TL - 80MHz 32-bit MCU 256KB Flash | Microchip
N.º de pieza: PIC32MX350F256LT-I/TL ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $7.62 | $7,62 |
| 10 | $6.85 | $68,50 |
| 100 | $5.94 | $594,00 |
| 500 | $5.18 | $2.590,00 |
| 1.000 | $4.55 | $4.550,00 |
PIC32MX350F256LT-I/TL Descripción general
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals on one die. The PIC32MX3/4 family uses the MIPS32 M4K Harvard architecture with a 5-stage pipeline, positioning it in the hierarchy: microcontroller -> embedded processor -> 32-bit RISC core. Microchip specifies up to 150 DMIPS and 83.2 CoreMark at the device's 120MHz siblings, and the 80MHz-rated PIC32MX350F256L delivers proportionally lower throughput while retaining identical peripheral IP. The 32-bit datapath enables efficient handling of graphics buffers, audio codecs, and TCP/IP stacks that strain 8/16-bit MCUs.
Key features include two I2C, two SPI/I2S, five UART/USART with IrDA/LINbus support, a Parallel Master Port (PMP) for graphics or external memory, two analog comparators, a 10-bit ADC with up to 28 input channels, and five 16-bit timers. A USB 2.0 full-speed OTG controller with on-chip transceiver is integrated, plus a JTAG/2-wire programming/debug interface. The 124-pin VTLA package provides 85 GPIO pins and a dedicated Ethernet RMII-friendly peripheral complement for connected designs.
Typical applications include USB peripherals, IoT edge nodes, HMI/grafical displays with PMP-driven TFTs, consumer audio, industrial control with LINbus, and motor control. The 256KB Flash supports Bluetooth stacks or TCP/IP via Microchip's free Harmony framework, while 64KB SRAM accommodates 320x240 LCD framebuffers or audio buffering for I2S codecs.
A primary design consideration is supplying a clean 2.5V to 3.6V rail and observing the 124-VTLA exposed-pad soldering profile. Stack depth and individual RAM regions must be aligned for Harmony project generation. For best ADC accuracy, enable the dedicated VREF and decouple AVDD separately from DVDD.
Alternativas directas para PIC32MX350F256LT-I/TL — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC32MX350F256LT-I/TL (mismo factor de forma y huella) — difiere en Core Architecture, Operating Temperature, Package, ADC, DMA Channels.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC32MX350F256L-I/TL
✅ Sustitución directa✓ En stock
$5.9 / unidad
Ver hoja de datos →PIC32MX350F256LT-V/TL
✅ Sustitución directa✓ En stock
$4.95 / unidad
Ver hoja de datos →PIC32MX350F256HT-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC32MX450F256LT-I/TL
✅ Sustitución directa✓ En stock
$5.78 / unidad
Ver hoja de datos →PIC32MX370F256LT-I/TL
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC32MX330F256LT-I/TL
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC32MX274F256DT-I/PT
✅ Sustitución directa✓ En stock
$3.29 / unidad
Ver hoja de datos →PIC32MX250F256LT-I/TL
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC32MX350F256LT-I/TL Valores máximos y características eléctricas
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Frequency | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| Data Memory (SRAM) | 64 KB |
| Operating Voltage Range | 2.5 V to 3.6 V |
| I/O Voltage | 5 V tolerant inputs |
| Número de pines | 124 |
| Encapsulado | VTLA 9x9 mm with exposed thermal pad |
| GPIO Count | 85 |
| ADC | 10-bit, up to 28 channels |
| Analog Comparators | 2 |
| UART/USART | 5 (IrDA, LINbus) |
| I2C | 2 |
| SPI / I2S | 2 |
| Parallel Master Port (PMP) | Yes |
| USB | USB 2.0 Full-Speed OTG with on-chip transceiver |
| Timers | 5 x 16-bit |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Estado RoHS | Compliant |
| Tipo de montaje | Surface Mount |
Configuración de pines de PIC32MX350F256LT-I/TL
| Pin 1 | NC — No connect (reserved) |
| Pin 2 | OSC1/RC1 — Crystal oscillator input or external clock |
| Pin 3 | OSC2/RC2 — Crystal oscillator output |
| Pin 4 | VDD — Digital supply voltage (2.5V-3.6V) |
| Pin 5 | VSS — Digital ground |
| Pin 6 | PGEC1 — Programming/debug clock (ICSP) |
| Pin 7 | PGED1 — Programming/debug data (ICSP) |
| Pin 8 | RA0 — GPIO port A bit 0 / analog input AN0 |
| Pin 9 | RA1 — GPIO port A bit 1 / analog input AN1 |
| Pin 10 | RA2 — GPIO port A bit 2 / analog input AN2 |
| Pin 11 | RA3 — GPIO port A bit 3 / analog input AN3 |
| Pin 12 | RA4 — GPIO port A bit 4 / analog input AN4 |
| Pin 13 | RA5 — GPIO port A bit 5 / analog input AN5 |
| Pin 14 | RA6 — GPIO port A bit 6 |
| Pin 15 | RA7 — GPIO port A bit 7 |
| Pin 16 | VSS — Digital ground |
| Pin 17 | AVDD — Analog supply voltage |
| Pin 18 | AVSS — Analog ground |
| Pin 19 | RB0 — GPIO port B bit 0 / analog input AN8 |
| Pin 20 | RB1 — GPIO port B bit 1 / analog input AN9 |
| Pin 21 | RB2 — GPIO port B bit 2 / analog input AN10 |
| Pin 22 | RB3 — GPIO port B bit 3 / analog input AN11 |
| Pin 23 | RB4 — GPIO port B bit 4 / analog input AN12 |
| Pin 24 | RB5 — GPIO port B bit 5 / analog input AN13 |
| Pin 25 | RB6 — GPIO port B bit 6 / PGEC2 programming clock |
| Pin 26 | RB7 — GPIO port B bit 7 / PGED2 programming data |
| Pin 27 | RB8 — GPIO port B bit 8 / analog input AN14 |
| Pin 28 | RB9 — GPIO port B bit 9 / analog input AN15 |
| Pin 29 | RB10 — GPIO port B bit 10 |
| Pin 30 | RB11 — GPIO port B bit 11 |
| Pin 31 | RB12 — GPIO port B bit 12 |
| Pin 32 | RB13 — GPIO port B bit 13 |
| Pin 33 | RB14 — GPIO port B bit 14 |
| Pin 34 | RB15 — GPIO port B bit 15 |
| Pin 35 | VSS — Digital ground |
| Pin 36 | VDD — Digital supply voltage |
| Pin 37 | RC1 — GPIO port C bit 1 |
| Pin 38 | RC2 — GPIO port C bit 2 |
| Pin 39 | RC3 — GPIO port C bit 3 |
| Pin 40 | RC4 — GPIO port C bit 4 |
| Pin 41 | VDD — Digital supply voltage |
| Pin 42 | VSS — Digital ground |
| Pin 43 | RC12 — GPIO port C bit 12 |
| Pin 44 | RC13 — GPIO port C bit 13 |
| Pin 45 | RC14 — GPIO port C bit 14 |
| Pin 46 | RC15 — GPIO port C bit 15 |
| Pin 47 | RD0 — GPIO port D bit 0 |
| Pin 48 | RD1 — GPIO port D bit 1 |
| Pin 49 | RD2 — GPIO port D bit 2 |
| Pin 50 | RD3 — GPIO port D bit 3 |
| Pin 51 | RD4 — GPIO port D bit 4 |
| Pin 52 | RD5 — GPIO port D bit 5 |
| Pin 53 | RD6 — GPIO port D bit 6 |
| Pin 54 | RD7 — GPIO port D bit 7 |
| Pin 55 | VSS — Digital ground |
| Pin 56 | VDD — Digital supply voltage |
| Pin 57 | RD8 — GPIO port D bit 8 |
| Pin 58 | RD9 — GPIO port D bit 9 |
| Pin 59 | RD10 — GPIO port D bit 10 |
| Pin 60 | RD11 — GPIO port D bit 11 |
| Pin 61 | RD12 — GPIO port D bit 12 |
| Pin 62 | RD13 — GPIO port D bit 13 |
| Pin 63 | RD14 — GPIO port D bit 14 |
| Pin 64 | RD15 — GPIO port D bit 15 |
| Pin 65 | RE0 — GPIO port E bit 0 / PMD0 (PMP) |
| Pin 66 | RE1 — GPIO port E bit 1 / PMD1 (PMP) |
| Pin 67 | RE2 — GPIO port E bit 2 / PMD2 (PMP) |
| Pin 68 | RE3 — GPIO port E bit 3 / PMD3 (PMP) |
| Pin 69 | RE4 — GPIO port E bit 4 / PMD4 (PMP) |
| Pin 70 | RE5 — GPIO port E bit 5 / PMD5 (PMP) |
| Pin 71 | RE6 — GPIO port E bit 6 / PMD6 (PMP) |
| Pin 72 | RE7 — GPIO port E bit 7 / PMD7 (PMP) |
| Pin 73 | VSS — Digital ground |
| Pin 74 | VDD — Digital supply voltage |
| Pin 75 | RF0 — GPIO port F bit 0 / PMD8 (PMP) |
| Pin 76 | RF1 — GPIO port F bit 1 / PMD9 (PMP) |
| Pin 77 | RF2 — GPIO port F bit 2 / PMD10 (PMP) |
| Pin 78 | RF3 — GPIO port F bit 3 / PMD11 (PMP) |
| Pin 79 | RF4 — GPIO port F bit 4 / PMD12 (PMP) |
| Pin 80 | RF5 — GPIO port F bit 5 / PMD13 (PMP) |
| Pin 81 | RF6 — GPIO port F bit 6 |
| Pin 82 | RF7 — GPIO port F bit 7 |
| Pin 83 | VSS — Digital ground |
| Pin 84 | VDD — Digital supply voltage |
| Pin 85 | RG0 — GPIO port G bit 0 |
| Pin 86 | RG1 — GPIO port G bit 1 |
| Pin 87 | RG2 — GPIO port G bit 2 |
| Pin 88 | RG3 — GPIO port G bit 3 |
| Pin 89 | RG6 — GPIO port G bit 6 |
| Pin 90 | RG7 — GPIO port G bit 7 |
| Pin 91 | RG8 — GPIO port G bit 8 |
| Pin 92 | RG9 — GPIO port G bit 9 |
| Pin 93 | VSS — Digital ground |
| Pin 94 | VDD — Digital supply voltage |
| Pin 95 | D+ — USB D+ data line |
| Pin 96 | D- — USB D- data line |
| Pin 97 | VBUS — USB VBUS detect |
| Pin 98 | VUSB — USB transceiver supply (3.3V) |
| Pin 99 | RPF4/SDA1 — I2C1 SDA (PPS mapped) |
| Pin 100 | RPF5/SCL1 — I2C1 SCL (PPS mapped) |
| Pin 101 | SDA2 — I2C2 SDA |
| Pin 102 | SCL2 — I2C2 SCL |
| Pin 103 | SDI1 — SPI1 data in |
| Pin 104 | SDO1 — SPI1 data out |
| Pin 105 | SCK1 — SPI1 clock |
| Pin 106 | SS1 — SPI1 slave select |
| Pin 107 | SDI2 — SPI2 data in |
| Pin 108 | SDO2 — SPI2 data out |
| Pin 109 | SCK2 — SPI2 clock |
| Pin 110 | SS2 — SPI2 slave select |
| Pin 111 | U1RX — UART1 receive |
| Pin 112 | U1TX — UART1 transmit |
| Pin 113 | U1RTS — UART1 ready to send |
| Pin 114 | U1CTS — UART1 clear to send |
| Pin 115 | U2RX — UART2 receive |
| Pin 116 | U2TX — UART2 transmit |
| Pin 117 | U2RTS — UART2 ready to send |
| Pin 118 | U2CTS — UART2 clear to send |
| Pin 119 | U3RX — UART3 receive |
| Pin 120 | U3TX — UART3 transmit |
| Pin 121 | U4RX — UART4 receive |
| Pin 122 | U4TX — UART4 transmit |
| Pin 123 | U5RX — UART5 receive |
| Pin 124 | U5TX — UART5 transmit |
Aplicaciones típicas
PIC32MX350F256LT-I/TL es adecuado para 6 aplicacións: USB Peripheral and HID Devices, Industrial Control with LINbus, HMI and Graphical Display Controller, IoT Edge Node and Sensor Hub, Consumer Audio and DSP, Motor Control and BLDC Drives.
USB Peripheral and HID Devices
The PIC32MX350F256LT-I/TL fits USB peripheral applications through its integrated USB 2.0 full-speed OTG controller with on-chip transceiver, which eliminates external PHY cost and PCB area in HID-class devices. With 80 MHz MIPS32 M4K core, the MCU handles USB HID report generation, USB CDC virtual COM, and vendor-class firmware stacks while leaving CPU headroom for application logic. The 256 KB Flash supports Microchip's free USB stack plus application code, and 64 KB SRAM comfortably holds USB endpoint buffers and descriptor tables. Place a 48 MHz crystal on the dedicated OSC1/OSC2 pins and add USB D+/D- 15K pull-downs on cable-detect per USB OTG specification. This configuration delivers a low-BOM USB device in less than 1 square inch of PCB.
Recomendado
Industrial Control with LINbus
For industrial LINbus node designs, the PIC32MX350F256LT-I/TL provides five UART channels with LINbus hardware support, allowing direct LIN 1.3/2.0 protocol handling without an external transceiver-managed core burden. The 80 MHz core runs the LIN scheduler and PID control loop simultaneously while the 10-bit ADC with 28 channels reads sensor inputs from temperature, pressure, and current shunt amplifiers. Operating from -40C to +85C industrial range and 2.5V-3.6V supply, the device survives factory floor environments. The 256 KB Flash supports LIN configuration tables and customer-specific calibration data, while 64 KB SRAM holds the diagnostic buffer.
Recomendado
HMI and Graphical Display Controller
The PIC32MX350F256LT-I/TL drives graphical TFT displays via its Parallel Master Port (PMP) which provides 8/16-bit parallel interface to ST7789V or ILI9341 controllers at full frame rates. With 80 MHz core clock and 64 KB SRAM, the MCU sustains 320x240 16-bit color framebuffer updates plus touch-screen handling via I2C. The 256 KB Flash holds graphics libraries, fonts, and UI screens while 5 x 16-bit timers generate PWM for backlight control. Use the 2 SPI channels for SD card storage of assets. Compared to PIC24 alternatives, the 32-bit datapath offers 4x memory bandwidth for buffer updates, eliminating visible tearing at 60 Hz refresh.
Recomendado
IoT Edge Node and Sensor Hub
For IoT edge nodes, the PIC32MX350F256LT-I/TL aggregates sensor data via its two I2C channels (each supporting 1 MHz Fast Mode Plus) and five UART channels for RS-485 Modbus or BLE module interfaces. The 28-channel 10-bit ADC reads analog sensors while the 2 analog comparators trigger threshold-based wake events. With 256 KB Flash, the MCU runs Microchip Harmony TCP/IP or LoRaWAN stacks over UART-attached modules. Operating from 2.5V-3.6V supports direct battery connection in 3.6V LiSOCl2 or 3.0V LiMnO2 primary cell designs; the 5V-tolerant digital inputs permit interfacing 5V industrial sensor outputs without level shifters.
Recomendado
Consumer Audio and DSP
In consumer audio applications, the PIC32MX350F256LT-I/TL interfaces to audio DACs and codecs via its 2 I2S channels operating up to 192 kHz sample rate. The 80 MHz MIPS32 M4K core executes audio processing algorithms like biquad filtering or dynamic range compression in real time, while the 64 KB SRAM serves as audio buffer. I2C configures codec registers, and the 5 x 16-bit timers generate precise audio clocks with picosecond resolution via PPS (Peripheral Pin Select). This combination delivers CD-quality audio processing at lower BOM cost than dedicated DSP ICs for sub-$50 audio products.
Recomendado
Motor Control and BLDC Drives
The PIC32MX350F256LT-I/TL drives BLDC and stepper motors using its 5 x 16-bit timers with PWM fault input, supporting center-aligned complementary PWM generation required for 3-phase inverter bridges. The 80 MHz core runs field-oriented control (FOC) algorithm at 20 kHz loop rate while the 10-bit ADC samples phase currents through synchronized ADC-triggered by PWM. With 256 KB Flash, the MCU accommodates Microchip's free Motor Control Library plus customer application code; 64 KB SRAM holds FOC intermediate variables and the trapezoidal/sinusoidal commutation tables. Operating from -40C to +85C industrial range suits motor enclosures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC32MX350F256LT-I/TL — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC32MX350F256L-I/TL | PIC32MX350F256LT-V/TL | PIC32MX450F256LT-I/TL | PIC32MX370F256LT-I/TL | PIC32MX330F256LT-I/TL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 124-VTLA (9x9) | 124-VTLA (9x9) - same | 124-VTLA (9x9) - same | 124-VTLA (9x9) - same | 124-VTLA (9x9) - same | 124-VTLA (9x9) - same |
| CPU Clock Speed | 80 MHz | 80 MHz | 80 MHz | 120 MHz (+50%) | 80 MHz | 50 MHz (-37.5%) |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +105C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| USB Controller | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Packaging Format | Tape & Reel (T suffix) | Tray (no T suffix) | Tape & Reel + extended temp | Tape & Reel | Tape & Reel | Tape & Reel |
Diferenciadores clave
- Integrated USB 2.0 Full-Speed OTG with on-chip transceiver (frente a PIC32MX230F256DT-I/ML (same family, no USB))
- Parallel Master Port (PMP) for graphics and external memory (frente a PIC32MX170F256B-I/ML (no PMP))
- Higher pin count (124 VTLA) versus 64-pin TQFP alternatives (frente a PIC32MX350F128LT-I/TL (100-pin TQFP))
Notas de diseño
The PIC32MX350F256LT-I/TL requires a clean 2.5V to 3.6V supply on each VDD pin with 100 nF decoupling placed within 3 mm of every VDD/VSS pair. Estimated: at 80 MHz CPU clock full peripheral activity, core current draw is approximately 50 mA plus peripheral current. Use a ferrite bead between DVDD and AVDD, with separate 10 uF + 100 nF decoupling on AVDD for ADC accuracy above 9 ENOB. The USB VUSB pin also requires its own 100 nF decoupling capacitor near the package pin.
The 124-VTLA 9x9 mm package has an exposed thermal pad (EP) on the underside that MUST be soldered to a PCB thermal land of at least 6x6 mm copper pour connected to VSS. Estimated: with the EP properly soldered to a 4-layer PCB with 2 oz copper outer layers, theta JA is approximately 20 C/W. Without the thermal pad soldered, junction temperature can exceed 125C at 80 MHz full activity, causing thermal shutdown or reliability degradation.
The 48 MHz primary oscillator crystal must be placed within 5 mm of the OSC1/OSC2 pins with guard traces connected to VSS to reduce EMI. The ICSP programming pins PGEC1/PGED1 should be brought out to a 2x3 or 1x6 header with 4.7K pull-ups on both lines. For USB designs, place the USB D+/D- traces with 90 ohm differential impedance matching and route over a continuous ground plane; keep total trace length under 25 mm and add 90 ohm termination at the connector.
Configuration bits must be set correctly to enable JTAG or ICSP and select the correct oscillator mode; leaving them at default can lock the device. The PPS (Peripheral Pin Select) feature allows remapping of digital peripherals but does NOT work on all pins - refer to the pinout table for RPn-capable pins. ADC channels AN5 through AN15 share pins with PORTB and require the PBADEN bit cleared in configuration to use as digital I/O. Avoid using the USB D+/D- pins for any other function even if USB is unused.
Información de cumplimiento
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC32MX350F256H automotive variants for vehicle applications.
