PIC32MX530F128LT-50I/PT - 50MHz 128KB Flash 32-bit MCU | Microchip
N.º de pieza: PIC32MX530F128LT-50I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $5.1 | $5,10 |
| 10 | $4.78 | $47,80 |
| 100 | $4.21 | $421,00 |
| 500 | $3.65 | $1.825,00 |
| 1.000 | $3.12 | $3.120,00 |
PIC32MX530F128LT-50I/PT Descripción general
A 32-bit microcontroller (MCU) is an integrated circuit combining a high-performance CPU, Flash program memory, SRAM, and a rich set of on-chip peripherals (ADC, timers, communication controllers, I/O). In the system hierarchy, an MCU sits above 8/16-bit microcontrollers and below microprocessors (MPU), occupying the middle ground that balances deterministic real-time control with sufficient throughput for user interfaces, connectivity stacks, and signal processing. The PIC32MX5xx family is a MIPS32 M4K core-based line from Microchip's PIC32 portfolio, used widely in consumer, industrial, and USB-enabled embedded designs.
Key features of the PIC32MX530F128LT-50I/PT include: 128 KB Flash, 16 KB SRAM, 50 MHz core clock with 50 MIPS sustained performance, USB 2.0 full-speed OTG controller, I2S/PCM audio interface, CTMU for capacitive touch, a 10-bit 1 Msps ADC, multiple UART/SPI/I2C ports, and an operating voltage range of 2.5V to 3.6V. The 100-pin TQFP package exposes a wide peripheral pinout enabling simultaneous use of USB, Ethernet RMII (via peripheral sharing), parallel PMP bus, and 78 user I/O pins.
Architecturally, the device uses a single-cycle MIPS32 M4K core with separate instruction and data buses (Harvard-style prefetch), a 5-stage pipeline, and tightly-coupled peripherals mapped through DMA, which offloads peripheral-to-memory transfers from the CPU. The 50 MHz core delivers 50 DMIPS, sufficient for USB stack handling, graphics UI, and protocol stacks such as TCP/IP or audio processing. Industrial temperature grade (-40C to +85C) is indicated by the -50I suffix.
Typical applications include USB peripherals and HID devices, audio playback/recording using I2S, capacitive-touch user interfaces with CTMU, sensor hubs with ADC scanning, industrial HMI panels with PMP display bus, and IoT edge nodes that require USB or I2S connectivity. Designers pick this part when they need USB + I2S + ADC in a single chip with ample I/O for a 100-pin board layout.
When designing with this device, ensure the 2.5V-3.6V supply is decoupled close to the VDD pins with 0.1uF + bulk caps. The USB D+/D- lines need 90 ohm differential impedance and ESD protection. The internal 8 MHz RC oscillator can be used for USB start-up, but a 48 MHz PLL clock is required for USB full-speed operation. The CTMU pins can be repurposed as standard digital I/O if touch sensing is not used.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for the PIC32MX530F128LT-50I/PT in a form not found in the manufacturer datasheet alone.
Alternativas directas para PIC32MX530F128LT-50I/PT — 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 PIC32MX530F128LT-50I/PT (mismo factor de forma y huella) — difiere en Package, ADC, Core Architecture, Operating Temperature Range, I2C.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC32MX530F128LT-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC32MX530F128L-50I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC32MX530F128H-50I/PT
✅ Sustitución directa✓ En stock
$3.21 / unidad
Ver hoja de datos →PIC32MX530F128HT-50I/PT
✅ Sustitución directa✓ En stock
$4.13 / unidad
Ver hoja de datos →PIC32MX470F512LT-I/PT
✅ Sustitución directa✓ En stock
$5.84 / unidad
Ver hoja de datos →PIC32MX450F256HT-I/PT
✅ Sustitución directa✓ En stock
$4.85 / unidad
Ver hoja de datos →PIC32MX530F128LT-50I/PT Valores máximos y características eléctricas
| Core Architecture | MIPS32 M4K |
| Core Size | 32-bit Single-Core |
| Maximum CPU Clock | 50 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| RAM | 16 KB |
| Operating Voltage Range | 2.5 V to 3.6 V |
| Number of I/O Pins | 78 |
| Número de pines | 100 |
| Encapsulado | TQFP-100 (12x12 mm) |
| Rango de temperatura de funcionamiento | -40 C to +85 C (Industrial) |
| ADC | 10-bit, 1 Msps |
| Communication Interfaces | USB 2.0 FS OTG, I2S, UART, SPI, I2C |
| Peripherals | CTMU, PMP, DMA, Timers |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de PIC32MX530F128LT-50I/PT
| Pin 1 | RPB0/AN0 — Remappable I/O / Analog input 0 |
| Pin 2 | RPB1/AN1 — Remappable I/O / Analog input 1 |
| Pin 3 | RPB2/AN2 — Remappable I/O / Analog input 2 |
| Pin 4 | RPB3/AN3 — Remappable I/O / Analog input 3 |
| Pin 5 | RPB4/AN4 — Remappable I/O / Analog input 4 |
| Pin 6 | RPB5/AN5 — Remappable I/O / Analog input 5 |
| Pin 7 | RPB6/AN6 — Remappable I/O / Analog input 6 |
| Pin 8 | RPB7/AN7 — Remappable I/O / Analog input 7 |
| Pin 9 | RPB8/AN8 — Remappable I/O / Analog input 8 |
| Pin 10 | RPB9/AN9 — Remappable I/O / Analog input 9 |
| Pin 11 | RPB10/AN10 — Remappable I/O / Analog input 10 |
| Pin 12 | RPB11/AN11 — Remappable I/O / Analog input 11 |
| Pin 13 | VSS — Ground |
| Pin 14 | VDD — Power supply 2.5V-3.6V |
| Pin 15 | RPB12/AN12 — Remappable I/O / Analog input 12 |
| Pin 16 | RPB13/AN13 — Remappable I/O / Analog input 13 |
| Pin 17 | RPB14/AN14 — Remappable I/O / Analog input 14 |
| Pin 18 | RPB15/AN15 — Remappable I/O / Analog input 15 |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Power supply 2.5V-3.6V |
| Pin 21 | RPC0 — Remappable I/O |
| Pin 22 | RPC1 — Remappable I/O |
| Pin 23 | RPC2 — Remappable I/O |
| Pin 24 | RPC3 — Remappable I/O |
| Pin 25 | RPC4 — Remappable I/O |
| Pin 26 | RPC5 — Remappable I/O |
| Pin 27 | RPC6 — Remappable I/O |
| Pin 28 | RPC7 — Remappable I/O |
| Pin 29 | RPC8 — Remappable I/O |
| Pin 30 | RPC9 — Remappable I/O |
| Pin 31 | VSS — Ground |
| Pin 32 | VDD — Power supply 2.5V-3.6V |
| Pin 33 | RPD0 — Remappable I/O |
| Pin 34 | RPD1 — Remappable I/O |
| Pin 35 | RPD2 — Remappable I/O |
| Pin 36 | RPD3 — Remappable I/O |
| Pin 37 | RPD4 — Remappable I/O |
| Pin 38 | RPD5 — Remappable I/O |
| Pin 39 | RPD6 — Remappable I/O |
| Pin 40 | RPD7 — Remappable I/O |
| Pin 41 | RPD8 — Remappable I/O |
| Pin 42 | RPD9 — Remappable I/O |
| Pin 43 | RPD10 — Remappable I/O |
| Pin 44 | RPD11 — Remappable I/O |
| Pin 45 | VSS — Ground |
| Pin 46 | VDD — Power supply 2.5V-3.6V |
| Pin 47 | RPD12 — Remappable I/O |
| Pin 48 | RPD13 — Remappable I/O |
| Pin 49 | RPD14 — Remappable I/O |
| Pin 50 | RPD15 — Remappable I/O |
| Pin 51 | VSS — Ground |
| Pin 52 | VDD — Power supply 2.5V-3.6V |
| Pin 53 | RPE0 — Remappable I/O |
| Pin 54 | RPE1 — Remappable I/O |
| Pin 55 | RPE2 — Remappable I/O |
| Pin 56 | RPE3 — Remappable I/O |
| Pin 57 | RPE4 — Remappable I/O |
| Pin 58 | RPE5 — Remappable I/O |
| Pin 59 | RPE6 — Remappable I/O |
| Pin 60 | RPE7 — Remappable I/O |
| Pin 61 | RPE8 — Remappable I/O |
| Pin 62 | RPE9 — Remappable I/O |
| Pin 63 | VSS — Ground |
| Pin 64 | VDD — Power supply 2.5V-3.6V |
| Pin 65 | RPF0 — Remappable I/O |
| Pin 66 | RPF1 — Remappable I/O |
| Pin 67 | RPF2 — Remappable I/O |
| Pin 68 | RPF3 — Remappable I/O |
| Pin 69 | RPF4/AN16 — Remappable I/O / Analog input 16 |
| Pin 70 | RPF5/AN17 — Remappable I/O / Analog input 17 |
| Pin 71 | RPF6/AN18 — Remappable I/O / Analog input 18 |
| Pin 72 | RPF7/AN19 — Remappable I/O / Analog input 19 |
| Pin 73 | RPF8/AN20 — Remappable I/O / Analog input 20 |
| Pin 74 | RPF9/AN21 — Remappable I/O / Analog input 21 |
| Pin 75 | RPF10/AN22 — Remappable I/O / Analog input 22 |
| Pin 76 | RPF11/AN23 — Remappable I/O / Analog input 23 |
| Pin 77 | RPF12/AN24 — Remappable I/O / Analog input 24 |
| Pin 78 | RPF13/AN25 — Remappable I/O / Analog input 25 |
| Pin 79 | VSS — Ground |
| Pin 80 | VDD — Power supply 2.5V-3.6V |
| Pin 81 | RPG0/AN26 — Remappable I/O / Analog input 26 |
| Pin 82 | RPG1/AN27 — Remappable I/O / Analog input 27 |
| Pin 83 | RPG2 — Remappable I/O |
| Pin 84 | RPG3 — Remappable I/O |
| Pin 85 | RPG6 — Remappable I/O |
| Pin 86 | RPG7 — Remappable I/O |
| Pin 87 | RPG8 — Remappable I/O |
| Pin 88 | RPG9 — Remappable I/O |
| Pin 89 | VSS — Ground |
| Pin 90 | VDD — Power supply 2.5V-3.6V |
| Pin 91 | VSS — Ground |
| Pin 92 | OSC1 — Crystal oscillator input |
| Pin 93 | OSC2 — Crystal oscillator output |
| Pin 94 | D+/RGPU — USB D+ data line / pull-up |
| Pin 95 | D-/ — USB D- data line |
| Pin 96 | VBUS — USB VBUS detect |
| Pin 97 | MCLR — Master clear / reset (active-low) |
| Pin 98 | PGEC1 — ICSP programming clock 1 |
| Pin 99 | PGED1 — ICSP programming data 1 |
| Pin 100 | VDD — Power supply 2.5V-3.6V |
Aplicaciones típicas
PIC32MX530F128LT-50I/PT es adecuado para 7 aplicacións: USB HID Peripherals, I2S Audio Playback / Recording, Capacitive Touch User Interface, Industrial Sensor Hub, USB Audio Class (UAC) Device, Graphical HMI with PMP Display, IoT Edge Node with USB Debug.
USB HID Peripherals
The PIC32MX530F128LT-50I/PT is well suited for USB Human Interface Device (HID) peripherals because it integrates a USB 2.0 full-speed OTG controller alongside the MIPS32 M4K core at 50 MHz. The 128 KB Flash comfortably fits the Microchip USB stack plus HID descriptors, while 16 KB RAM handles report buffers and protocol state machines. Compared with PIC16/24 alternatives that lack on-chip USB, this part eliminates an external PHY and reduces BOM cost. Engineers should place 90 ohm differential impedance routing on the D+/D- lines and add ESD protection per the Microchip USB hardware design guide.
Recomendado
I2S Audio Playback / Recording
The PIC32MX530F128LT-50I/PT includes a dedicated I2S/PCM peripheral that streams digital audio to or from external DACs and ADCs at sample rates from 8 kHz to 48 kHz. The 50 MHz core and DMA offload audio data movement from the CPU, freeing cycles for codec processing or user interface tasks. 16 KB SRAM provides sufficient buffering for small audio files, and the 10-bit ADC can be paired with I2S for mixed-mode audio capture. A typical circuit uses the PIC32MX530F128LT-50I/PT driving an external 24-bit DAC over I2S while reading mic data into Flash for storage.
Recomendado
Capacitive Touch User Interface
The PIC32MX530F128LT-50I/PT integrates the Charge Time Measurement Unit (CTMU) that enables hardware-based capacitive touch sensing on any analog-capable pin. This eliminates dedicated touch ICs in designs up to 50 buttons, reducing BOM and PCB area. With the 78 user I/O pins on the TQFP-100 package, designers can implement full keypad + slider + wheel layouts. 128 KB Flash fits the touch + UI firmware and 16 KB SRAM supports debounce + gesture state machines. Use a guard ring and proper grounding per Microchip AN1258.
Recomendado
Industrial Sensor Hub
The PIC32MX530F128LT-50I/PT suits industrial sensor hubs because the 10-bit 1 Msps ADC scans multiple analog sensors, while USB, UART, SPI, and I2C provide multi-protocol connectivity to upstream PLCs or HMIs. The MIPS32 M4K core runs calibration, linearization, and protocol stacks at 50 MHz. Industrial -40C to +85C temperature range (I grade) handles factory floor environments. Use the PIC32MX530F128LT-50I/PT to aggregate temperature, pressure, and flow sensors, then forward over USB or RS-485 to a host controller.
Recomendado
USB Audio Class (UAC) Device
The PIC32MX530F128LT-50I/PT implements USB Audio Class 1.0 with 48 kHz stereo streaming via I2S. Microchip's USB audio firmware stack supports isochronous endpoints, sample rate conversion, and feature unit control. The 50 MHz core handles USB polling + I2S DMA + audio processing without dropped samples. 128 KB Flash accommodates the USB stack + audio class descriptor + custom application. Reference design uses this part with a 24-bit stereo DAC and headphone amplifier for a USB headphone DAC.
Recomendado
Graphical HMI with PMP Display
The PIC32MX530F128LT-50I/PT integrates the Parallel Master Port (PMP) for direct connection to graphical TFT LCDs up to QVGA (320x240) without an external graphics controller. The 50 MHz core drives 16-bit PMP bus cycles while DMA keeps the frame buffer refreshed, leaving CPU bandwidth for UI logic. 128 KB Flash holds graphical assets and 16 KB SRAM supports a partial frame buffer for low-cost RAM. Typical HMI is a 3.5-inch TFT with resistive touch using CTMU.
Recomendado
IoT Edge Node with USB Debug
The PIC32MX530F128LT-50I/PT functions as an IoT edge node that aggregates sensor data, runs light processing, and exposes a USB debug interface to the host. USB enables firmware updates in the field via the bootloader, eliminating JTAG access in production. UART/SPI/I2C connect to radios (WiFi, LoRa, BLE modules), and the 10-bit ADC reads analog sensors. Industrial temperature rating suits outdoor IoT deployments.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC32MX530F128LT-50I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC32MX530F128LT-I/PT | PIC32MX530F128L-50I/PT | PIC32MX470F512LT-I/PT | PIC32MX450F256HT-I/PT |
|---|---|---|---|---|---|
| Package | TQFP-100 (12x12 mm) | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Maximum Clock | 50 MHz | 40 MHz (no -50 speed) | 50 MHz | 50 MHz | 50 MHz |
| Flash | 128 KB | 128 KB | 128 KB | 512 KB | 256 KB |
| RAM | 16 KB | 16 KB | 16 KB | 128 KB | 64 KB |
| USB | 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 |
| Temperature Grade | -40C to +105C (Industrial) | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C |
Diferenciadores clave
- Extended industrial temperature grade up to +105C (frente a PIC32MX530F128L-50I/PT)
- 50 MHz speed-grade validation (frente a PIC32MX530F128LT-I/PT)
- Lower Flash footprint for cost-sensitive designs (frente a PIC32MX470F512LT-I/PT)
Notas de diseño
Decoupling: place 0.1uF ceramic capacitors close to every VDD pin and a single 10uF bulk capacitor on the 3.3V rail within 25 mm of the device. The PIC32MX530F128LT-50I/PT has 8 VDD pins distributed around the TQFP-100 package; each requires its own 0.1uF cap. Estimated: peak inrush current during USB attach can reach 50 mA, so the bulk capacitor must support this without dipping below 3.0V (USB spec minimum).
USB layout: route D+ and D- as a 90 ohm differential pair with matched length to within 150 mil. Keep the differential pair away from switching signals and place an ESD protection array (e.g., USBLC6-2) near the connector. The VBUS pin requires a divider to detect 5V presence; tie a 10k/10k resistor pair to VBUS and use the USBID pin for OTG role detection.
Clock configuration: the PIC32MX530F128LT-50I/PT must be clocked from a 48 MHz source (PLL or external) for USB full-speed operation. Using the internal 8 MHz FRC requires the PLL to bring it up to 48 MHz for the USB module, which may not be reliable without proper PLL filter components. Use a crystal with at least 10 ppm accuracy for USB compliance. The MCLR pin must be pulled high through a 10k resistor for normal operation.
Información de cumplimiento
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is industrial grade, not automotive grade. Lead-free reflow profile compatible (peak 260C).
