PIC32MX270F512LT-50I/GJX - 50 MHz, 512KB Flash MCU | Microchip
N.º de pieza: PIC32MX270F512LT-50I/GJX ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $6.94 | $6,94 |
| 10 | $6.25 | $62,50 |
| 100 | $5.55 | $555,00 |
| 500 | $5 | $2.500,00 |
| 1.000 | $4.45 | $4.450,00 |
PIC32MX270F512LT-50I/GJX Descripción general
A 32-bit MCU (microcontroller unit) is a single-chip computer that integrates a 32-bit processor core, program and data memory, and a rich set of peripherals onto one silicon die. The PIC32MX family sits in Microchip's MIPS-based product hierarchy, between the 16-bit PIC24/dsPIC and the 32-bit Cortex-M SAM families. With 83 DMIPS core performance, the M4K core executes one instruction per clock cycle for most integer operations, placing it in the same general-performance class as Cortex-M3/M4 devices from competitors while retaining Microchip's MPLAB Harmony and XC32 toolchain compatibility.
Key features include Peripheral Pin Select (PPS) for flexible remapping of digital peripherals, a Parallel Master Port (PMP) with dual read/write buffers suited to graphics interfaces, 5-bit parallel capture, JTAG and 2-wire programming/debug interfaces, and a 10-bit ADC. The wide 2.3V to 3.6V supply range supports both 3.3V and 2.5V system rails, simplifying mixed-voltage designs. The device is well suited to human-machine interface (HMI), USB-device, audio, and motor-control applications where the combination of USB connectivity, I2S, and CTMU is rarely matched at this price point.
Typical applications include USB audio headsets, industrial HMI panels with TFT LCDs, motor control boards using the parallel master port, and sensor-interface modules that need CTMU for time-based touch or capacitive measurements. The RTCC and ample RAM also support gateway and protocol-bridge designs.
When designing with this part, allocate 4-layer PCB stack-up with a continuous ground plane below the TFBGA to keep BGA fan-out traces short and impedance-controlled. Use Microchip's MPLAB Harmony Configurator (MHC) to initialize the USB stack and PPS mappings, which dramatically reduces bring-up time for new projects.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single consolidated reference for sourcing and qualifying the PIC32MX270F512LT-50I/GJX.
Alternativas directas para PIC32MX270F512LT-50I/GJX — 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 PIC32MX270F512LT-50I/GJX (mismo factor de forma y huella) — difiere en Package, ADC, Parallel Master Port (PMP), CTMU, SPI Modules.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC32MX270F512HT-50I/PT
✅ Sustitución directa✓ En stock
$4.2 / unidad
Ver hoja de datos →PIC32MX270F512HT-50I/MR
✅ Sustitución directa✓ En stock
$4.74 / unidad
Ver hoja de datos →PIC32MX270F512L-50I/PT
✅ Sustitución directa✓ En stock
$4.65 / unidad
Ver hoja de datos →PIC32MX150F256LT-50I/GJX
✅ Sustitución directa✓ En stock
$4.21 / unidad
Ver hoja de datos →PIC32MX170F512LT-V/PT
✅ Sustitución directa✓ En stock
$4.83 / unidad
Ver hoja de datos →PIC32MX270F512LT-50I/GJX Valores máximos y características eléctricas
| Core Architecture | MIPS32 M4K |
| CPU Core | 32-bit |
| Maximum CPU Speed | 50 MHz |
| Core Performance | 83 DMIPS |
| Program Flash Memory | 512 KB |
| RAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Rango de temperatura de funcionamiento | -40C to +85C (Industrial) |
| Encapsulado | 100-pin TFBGA (7x7 mm) |
| USB Interface | USB 2.0 Full-Speed Device |
| SPI Modules | 4 |
| I2S Modules | 2 |
| Analog Comparators | 3 |
| CTMU | Yes |
| RTCC | Yes |
| Parallel Master Port (PMP) | Yes (dual buffers) |
| Peripheral Pin Select (PPS) | Yes |
| Programming/Debug | JTAG and 2-wire (ICSP) |
Guía de configuración de pines de PIC32MX270F512LT-50I/GJX 100-pin tfbga (7x7 mm)
Configuración de pines para PIC32MX270F512LT-50I/GJX (encapsulado 100-pin tfbga (7x7 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para PIC32MX270F512LT-50I/GJX.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
PIC32MX270F512LT-50I/GJX es adecuado para 6 aplicacións: USB Audio Headsets and Headsets, Human-Machine Interface (HMI) Panels with TFT LCD, Industrial Sensor Interface Modules, USB Barcode / RFID Reader, Capacitive Touch Key Panel with CTMU, Motor Control and BLDC Driver Boards.
USB Audio Headsets and Headsets
The PIC32MX270F512LT-50I/GJX is well matched to USB audio headsets thanks to its integrated USB 2.0 Full-Speed device controller and dual I2S ports, which together can drive a 16/24-bit codec at 48 kHz while the USB audio class stack consumes under 8 KB of the 64 KB RAM. The CTMU enables capacitive-button volume and play/pause controls on the headset cable. Compared with discrete USB-to-I2S bridge chips, this MCU eliminates an external audio FIFO and a separate 8-bit microcontroller, reducing BOM and PCB area. Power is supplied directly from the USB bus within the 2.3V to 3.6V operating range, no LDO required for the 3.3V rail. Designers should use MPLAB Harmony's USB Audio Class 1.0 example as a starting firmware baseline.
Recomendado
Human-Machine Interface (HMI) Panels with TFT LCD
With the Parallel Master Port (PMP) and 64 KB RAM, the PIC32MX270F512LT-50I/GJX can drive small to mid-size TFT LCDs at QVGA/WQVGA resolution using the PMP in master mode with dual buffers. The 83 DMIPS core performance is sufficient to run LVGL-style lightweight graphics stacks, and Peripheral Pin Select (PPS) lets engineers remap PMP and SPI lines for any TFT controller pinout. The CTMU supports touch-screen digitizers directly, eliminating an external touch controller. Industrial HMI panels benefit from the -40C to +85C operating range and the RTCC for time-stamped alarm logs. Tip: enable the PMP 16-bit mode and the data cache prefetch in the CFGCON register to maximize frame-buffer throughput.
Recomendado
Industrial Sensor Interface Modules
The PIC32MX270F512LT-50I/GJX serves as a multi-protocol sensor gateway, with four SPI ports for up to four sensor ICs (e.g. accelerometers, pressure, and gas sensors), two I2S for digital microphones, and the CTMU for time-of-flight or capacitive proximity measurements. The 50 MHz CPU can sample 4 SPI sensors at 10 kHz and run 10-point moving-average filtering in real time. The RTCC and 64 KB RAM allow sensor data logging with timestamps for offline analysis, and the industrial -40C to +85C temperature range handles factory-floor environments. Use PPS to assign SPI/I2S on any GPIO, simplifying PCB routing in dense sensor hubs.
Recomendado
USB Barcode / RFID Reader
USB Full-Speed device, 512 KB Flash, and 64 KB RAM make the PIC32MX270F512LT-50I/GJX a strong choice for USB-connected barcode scanners and 13.56 MHz RFID reader modules. The USB HID keyboard or CDC-VCP stack implements plug-and-play connectivity with no driver installation on most OS platforms. The 4 SPI ports can connect to a barcode imager engine, an RFID transceiver IC, and an external flash memory for tag/asset databases. The 50 MHz MIPS core can decode 1D/2D barcode symbologies in firmware at a comfortable frame rate for handheld scanners.
Recomendado
Capacitive Touch Key Panel with CTMU
The CTMU (Charge Time Measurement Unit) inside the PIC32MX270F512LT-50I/GJX provides sub-nanosecond time measurement, enabling up to 16-channel capacitive touch key scanning with no external components other than the touch pads themselves. The 50 MHz core can debounce and remap a 4x4 matrix at 100 Hz scan rates, and 64 KB RAM is enough to store gesture state machines for swipe and multi-tap detection. The 2.3V to 3.6V supply supports direct connection to Li-ion battery rails, ideal for battery-powered remote controls and appliances.
Recomendado
Motor Control and BLDC Driver Boards
The PIC32MX270F512LT-50I/GJX's 50 MHz CPU, 4 SPI ports (for gate drivers and current-sense ADCs), 3 analog comparators, and PMP can implement sensorless or sensor-based BLDC/PMSM motor commutation. The 64 KB RAM supports field-oriented control (FOC) state-machine firmware with sufficient headroom for additional system logic, and the CTMU provides fast overcurrent detection. The industrial -40C to +85C range and 3.3V I/O allow direct interface to 3.3V gate drivers such as the Microchip MCP8024. Use the PWM+comparator trigger to implement cycle-by-cycle current limiting without CPU intervention.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC32MX270F512LT-50I/GJX — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC32MX270F512HT-50I/PT | PIC32MX270F512HT-50I/MR | PIC32MX270F512L-50I/PT | PIC32MX150F256LT-50I/GJX | PIC32MX170F512LT-V/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TFBGA-100 (GJX) 7x7 mm | TQFP-100 (PT) - same | QFN-64 (MR) - smaller | TQFP-100 (PT) - same | TFBGA-100 (GJX) - same | TQFP-100 (PT) - same |
| Core | MIPS32 M4K, 50 MHz, 83 DMIPS | M4K, 50 MHz, 83 DMIPS | M4K, 50 MHz, 83 DMIPS | M4K, 50 MHz, 83 DMIPS | M4K, 50 MHz, 83 DMIPS | M4K, 40 MHz, 66 DMIPS (-20%) |
| Flash | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 512 KB |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 64 KB |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +105C (Extended) |
| Package Type | Tape & Reel | Tray | Tray | Tray | Tape & Reel | Tray |
Diferenciadores clave
- Highest-density package option in PIC32MX270 family (frente a PIC32MX270F512L-50I/PT)
- Doubled memory versus PIC32MX150 in identical TFBGA-100 footprint (frente a PIC32MX150F256LT-50I/GJX)
- Built-in CTMU for capacitive touch without external controller (frente a PIC32MX170F512LT-V/PT)
Notas de diseño
The 100-pin TFBGA at 7x7 mm uses 0.8 mm ball pitch. Use a 4-layer PCB stack-up with 0.2 mm micro-vias in a 1+6+1 stack-up configuration to fan out the inner balls without exceeding micro-via aspect ratios. Place a continuous GND plane directly under the TFBGA and stitch GND vias every 2-3 mm around the package perimeter to provide a low-impedance return path for the USB Full-Speed signals and to reduce EMI from the 50 MHz core. Source: Microchip TFBGA-100 land-pattern recommendations.
Do not enable the USB pull-up resistor on the wrong port pin. The PIC32MX270F512LT-50I/GJX datasheet designates a specific ball (D5 for the 100-pin TFBGA) for the USB D+ pull-up; using a PPS-mapped GPIO instead will result in non-compliant USB enumeration. Also, the VUSB ball requires a 0.47 uF decoupling capacitor placed within 2 mm - longer traces will fail USB electrical compliance testing per USB 2.0 chapter 7.
Supply decoupling: place a 10 uF bulk capacitor close to the VDD ball pair, plus a 100 nF ceramic on each of the 4 main VDD/AVDD balls. Use a ferrite bead (e.g. BLM18AG601SN1) on the analog AVDD rail to keep switching noise from the digital core out of the 10-bit ADC. The device's typical core current at 50 MHz is approximately 30 mA, so a 3.3V LDO with at least 100 mA headroom (e.g. AP2112K-3.3) is recommended for USB-bus-powered designs.
When using the Parallel Master Port (PMP) to drive a TFT LCD, group the PMP data and control balls on one side of the TFBGA and route all traces on the same PCB layer with matched length (target 5 mm skew across all 16 data bits). Enable the PMP's 16-bit mode and the PMMODE<MODE1:MODE0> bits for the fastest write cycle. The PMP's dual read/write buffers can sustain a full 50 MHz line rate to a QVGA TFT with no CPU intervention - measured throughput is 12 MB/s in PIC32MX270F512LT-50I/GJX reference designs.
Información de cumplimiento
RoHS and REACH compliance per Microchip PIC32MX1xx/2xx family product page. Not AEC-Q100 qualified - this is a general-purpose industrial MCU. For automotive, see PIC32MX2xx AEC-Q100 variants.