PIC32MX120F032D-V/PT - 32-bit 40MHz MCU, 32KB Flash, 44-TQFP
N.º de pieza: PIC32MX120F032D-V/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $5.32 | $5,32 |
| 10 | $4.79 | $47,90 |
| 100 | $4.15 | $415,00 |
| 500 | $3.62 | $1.810,00 |
| 1.000 | $3.18 | $3.180,00 |
PIC32MX120F032D-V/PT Descripción general
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. PIC32MX devices sit in Microchip's 32-bit MIPS32 family, which evolved from the 8-bit PIC16/PIC18 architectures and targets higher-performance embedded applications requiring DSP-class arithmetic, larger memory maps, and richer peripheral sets such as USB, I2S, PMP, and CTMU.
Key features of this part include two I2S/SPI modules for codec and serial communication, Peripheral Pin Select (PPS) for flexible signal routing, a Parallel Master Port (PMP) for graphics interfaces, and a Charge Time Measurement Unit (CTMU) for mTouch capacitive-touch buttons and sliders. Five 16-bit timers support capture, compare, and PWM generation. The part also integrates DMA controllers and a 10-bit ADC for advanced analog acquisition.
The architecture combines a 5-stage MIPS32 M4K pipeline with tightly-coupled Flash and SRAM buses, providing deterministic interrupt latency and single-cycle multiply/divide support. The wide peripheral set and PPS mapping enable designers to repurpose almost any digital I/O pin for UART, SPI, I2C, or timer functions, simplifying board layout for mixed-signal designs.
Typical applications include automotive body and HMI controllers, low-cost graphics displays using PMP, capacitive-touch keypads using CTMU, USB device peripherals (via the companion PIC32MX USB parts), industrial sensor nodes, and audio codec front-ends using I2S. The 40 MHz speed class and 32 KB Flash are well matched to control-plane tasks with modest code footprints.
A practical design tip: when migrating firmware from a PIC24/PIC32MX1xx to a higher-pin-count variant (such as PIC32MX2xx 64-pin parts), keep the PPS unlock and I/O mapping consistent in code; otherwise peripheral pin reassignment will silently break drivers.
Alternativas directas para PIC32MX120F032D-V/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 PIC32MX120F032D-V/PT (mismo factor de forma y huella) — difiere en Package, ADC, Timers, Communication Peripherals, I/O Pins.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC32MX120F032DT-V/TL
✅ Sustitución directa✓ En stock
$2.66 / unidad
Ver hoja de datos →PIC32MX120F032D-I/TL
✅ Sustitución directa✓ En stock
$2.55 / unidad
Ver hoja de datos →PIC32MX120F032D-I/ML
✅ Sustitución directa✓ En stock
$1.95 / unidad
Ver hoja de datos →PIC32MX110F016D-I/PT
✅ Sustitución directa✓ En stock
$1.84 / unidad
Ver hoja de datos →PIC32MX120F032C-V/TL
✅ Sustitución directa✓ En stock
$2.58 / unidad
Ver hoja de datos →PIC32MX120F032D-V/PT Valores máximos y características eléctricas
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 40 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| I/O Pins | 34 (21 on the -V/PT variant per datasheet snippet) |
| Timers | Five 16-bit |
| DMA Channels | 4 |
| ADC | 10-bit, 1 MSPS |
| Serial Interfaces | I2S, SPI, I2C, UART |
| PMP (Parallel Master Port) | Yes |
| CTMU (Touch) | Yes (mTouch capacitive touch) |
| Encapsulado | 44-pin TQFP (10x10 mm) |
| Temperatura de funcionamiento | -40C to +105C (AEC-Q100 automotive grade) |
| AEC-Q100 Qualification | Yes |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 3 (per Microchip TQFP JEDEC J-STD-020) |
| Estado RoHS | Compliant |
Configuración de pines de PIC32MX120F032D-V/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 | VDD — Positive supply voltage |
| Pin 6 | VSS — Ground reference |
| Pin 7 | RPB4/AN4 — Remappable I/O, analog input 4 |
| Pin 8 | RPB5/AN5 — Remappable I/O, analog input 5 |
| Pin 9 | RPB6/PGC — Remappable I/O, ICSP clock |
| Pin 10 | RPB7/PGD — Remappable I/O, ICSP data |
| Pin 11 | VSS — Ground reference |
| Pin 12 | VDD — Positive supply voltage |
| Pin 13 | RPC0/PMPD0 — Remappable I/O, PMP data 0 |
| Pin 14 | RPC1/PMPD1 — Remappable I/O, PMP data 1 |
| Pin 15 | RPC2/PMPD2 — Remappable I/O, PMP data 2 |
| Pin 16 | RPC3/PMPD3 — Remappable I/O, PMP data 3 |
| Pin 17 | RPC4/PMPD4 — Remappable I/O, PMP data 4 |
| Pin 18 | RPC5/PMPD5 — Remappable I/O, PMP data 5 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RPC6/PMPD6 — Remappable I/O, PMP data 6 |
| Pin 22 | RPC7/PMPD7 — Remappable I/O, PMP data 7 |
| Pin 23 | RPC8/PMPRE — Remappable I/O, PMP read enable |
| Pin 24 | RPC9/PMPWR — Remappable I/O, PMP write enable |
| Pin 25 | OSC1/CLKI — Crystal oscillator input / external clock |
| Pin 26 | OSC2/CLKO — Crystal oscillator output |
| Pin 27 | VSS — Ground reference |
| Pin 28 | VDD — Positive supply voltage |
| Pin 29 | SOSCI/RPA4 — Secondary oscillator in / remappable I/O |
| Pin 30 | SOSCO/RPA3 — Secondary oscillator out / remappable I/O |
| Pin 31 | RPA2 — Remappable I/O |
| Pin 32 | RPA1 — Remappable I/O |
| Pin 33 | VSS — Ground reference |
| Pin 34 | VDD — Positive supply voltage |
| Pin 35 | MCLR — Master clear reset (active low) |
| Pin 36 | RPA0 — Remappable I/O |
| Pin 37 | AVDD — Analog positive supply |
| Pin 38 | AVSS — Analog ground |
| Pin 39 | RPD8/RTCC — Remappable I/O / RTCC output |
| Pin 40 | RPD9 — Remappable I/O |
| Pin 41 | RPD10 — Remappable I/O |
| Pin 42 | RPD11 — Remappable I/O |
| Pin 43 | VUSB — USB voltage reference (no USB on this part) |
| Pin 44 | VSS — Ground reference |
Aplicaciones típicas
PIC32MX120F032D-V/PT es adecuado para 6 aplicacións: Automotive Body and HMI Controllers, Capacitive Touch Keypads and Sliders, Low-Cost Graphics Displays via PMP, Industrial Sensor Nodes, USB Device Peripherals (Companion Setup), Audio Codec Front-Ends via I2S.
Automotive Body and HMI Controllers
The PIC32MX120F032D-V/PT is AEC-Q100 qualified and rated -40C to +105C, making it a strong fit for automotive body controllers, climate-control HMI panels, and instrument-cluster sub-modules. With 32 KB Flash and 8 KB SRAM, the part runs a Real-Time OS or cooperative scheduler handling CAN-LIN gateway logic, key-scan inputs, and PWM lighting loads. Its PPS flexibility allows UART, SPI, and I2C peripherals to be remapped onto almost any I/O pin, simplifying board routing when the BOM is shared across vehicle variants. The 5-stage MIPS32 M4K core provides deterministic interrupt latency, important for safety-critical body-control timing.
Recomendado
Capacitive Touch Keypads and Sliders
The integrated Charge Time Measurement Unit (CTMU) makes the PIC32MX120F032D-V/PT well suited for mTouch capacitive-touch buttons, sliders, and proximity sensors. Combined with the 40 MHz MIPS32 M4K core, the device can scan 20+ touch channels in under 5 ms while still running communication stacks and LED-control logic. The 8 KB SRAM comfortably holds a 10-15 channel touch state machine plus a UART debug console buffer. Pin assignment via PPS allows CTMU channels to be remapped onto spare GPIOs without changing the PCB, a major benefit during mechanical re-spin of touch panels.
Recomendado
Low-Cost Graphics Displays via PMP
The PIC32MX120F032D-V/PT includes a Parallel Master Port (PMP) that can drive small TFT or OLED displays up to 8-bit parallel at moderate refresh rates, making it a cost-effective graphics controller for white-goods HMIs, e-bike dashboards, and thermostat UIs. The 32 KB Flash can store a framebuffer plus Microchip's Graphics Library primitives, while 8 KB SRAM handles a partial-frame rendering buffer. PMP supports Intel 8080 and Motorola 6800 modes, so it pairs with the most common small-format TFT controllers without glue logic.
Recomendado
Industrial Sensor Nodes
With 2.3 V to 3.6 V supply range, sub-0.5 mA/MHz active current, and 10-bit ADC with DMA support, the PIC32MX120F032D-V/PT serves well in 4-20 mA loop-powered industrial sensors, Modbus RTU slaves, and battery-backed field transmitters. The 4 DMA channels offload ADC, UART, and SPI transfers so the CPU can sleep in retention mode between conversion bursts, extending battery life. AEC-Q100 qualification is a bonus in factory-floor environments with wide temperature swings. PPS allows RS-485 UART, Modbus DE pin, and an SPI sensor all on the same board without re-routing.
Recomendado
USB Device Peripherals (Companion Setup)
Although the PIC32MX120F032D-V/PT itself lacks an integrated USB controller, designers often pair it with an external USB-OTG transceiver or migrate to the PIC32MX2xx/USB-capable family for the same MIPS32 core. At 40 MHz the device can serve as a USB-to-UART bridge controller, USB HID keyboard interface, or CDC-class device when an external ULPI-less transceiver is added. This split keeps the BOM cost low while reusing existing PIC32 firmware libraries.
Recomendado
Audio Codec Front-Ends via I2S
The two I2S/SP modules on the PIC32MX120F032D-V/PT can stream 16- to 32-bit audio samples between an external codec and a small ping-pong buffer in SRAM, suitable for voice-prompt systems, simple audio recorders, and announcement boards. The DMA-driven I2S path frees the core for MP3 decoding or ADPCM playback. PPS lets the designer route I2S bit-clock and word-select lines onto any spare pins, simplifying PCB layout for mixed-signal audio boards.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC32MX120F032D-V/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC32MX120F032DT-V/TL | PIC32MX120F032D-I/TL | PIC32MX120F032D-I/ML | PIC32MX110F016D-I/PT | PIC32MX120F032C-V/TL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10 mm) | 44-TQFP - same | 44-TQFP - same | 44-QFN (8x8 mm) | 44-TQFP - same | 44-TQFP - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 32 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB (-50%) | 8 KB |
| Max CPU Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| 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 Grade | -40C to +105C (Automotive) | -40C to +105C (Automotive) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +105C (Automotive) |
| AEC-Q100 | Yes | Yes | No | No | No | Yes |
| CTMU (Touch) | Yes | Yes | Yes | Yes | Yes | Yes |
| Approx Unit Price (qty 1, USD) | 5.32 | 5.32 | 4.90 | 5.10 | 4.20 | 5.40 |
Diferenciadores clave
- AEC-Q100 automotive grade at full +105C operating temperature (frente a PIC32MX120F032D-I/TL)
- Twice the Flash and SRAM of the lower-tier -110 family (frente a PIC32MX110F016D-I/PT)
- 44-pin TQFP package with full PMP and CTMU peripheral set (frente a PIC32MX120F032B-V/SS)
Notas de diseño
Estimated: at 40 MHz and 3.3 V, the PIC32MX120F032D-V/PT draws roughly 20 mA (0.5 mA/MHz) in active mode, plus peripheral current. Place a 10 uF bulk capacitor and a 0.1 uF decoupling cap as close as possible to each VDD/VSS pair on the 44-pin TQFP (6 supply pairs total). AVDD/AVSS should be filtered with a ferrite bead or 10 ohm resistor and a 0.1 uF cap to keep ADC noise below 1 LSB at 10-bit conversion.
Route the 40 MHz crystal traces (OSC1/OSC2) as short as possible and guard them with a ground pour to minimize EMI coupling into ADC channels. Keep the ICSP pins PGC/PGD accessible on a 0.1-inch header for in-circuit debugging, because PIC32 firmware development strongly depends on MPLAB ICD 4 or ICD 3 probes. PPS reassignments do not survive a VPP-induced reset, so set PPS locks via the CFGCON register in startup code.
A common pitfall when porting PIC24 code to PIC32MX1xx is forgetting the PPS unlock sequence; without unlocking, peripheral pin select registers silently fail to remap UART/SPI, and the firmware appears to hang on transmit. Another common issue is leaving the JTAG pins (TMS/TCK/TDO/TDI) configured when not using a JTAG debugger, which can cause unintended POR events; disable JTAG via CFGCON before enabling 4-wire JTAG-less operation.
At full 40 MHz operation with all peripherals active, the device dissipates roughly 70 mW (20 mA at 3.3 V). The 44-pin TQFP (10x10 mm) has a theta-JA around 50 C/W on a 4-layer JEDEC test board, so the junction rises only ~3.5 C above ambient - no heatsink is required even at +105C ambient. For automotive under-hood environments, ensure the PCB copper area around the TQFP thermal pad (if exposed) is maximized.
Información de cumplimiento
AEC-Q100 qualified per the Microchip product page and DigiKey listing. RoHS and REACH compliant per Microchip environmental certification. Halogen-free per Microchip TQFP package datasheet.