PIC32MX120F032DT-V/TL - 32-bit MCU, 32KB Flash, 40MHz, 44-VTLA | Microchip
MPN: PIC32MX120F032DT-V/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.94 | $3.94 |
| 10 | $3.58 | $35.80 |
| 100 | $3.21 | $321.00 |
| 500 | $2.91 | $1,455.00 |
| 1,000 | $2.66 | $2,660.00 |
PIC32MX120F032DT-V/TL Overview
A PIC32MX microcontroller is a 32-bit MIPS-based MCU from Microchip Technology, positioned in the broader hierarchy as a microcontroller -> embedded processor -> semiconductor device. Compared with 8-bit PIC MCUs, PIC32MX devices deliver higher computational throughput, larger linear address space, and richer peripherals while preserving the MPLAB X IDE and Harmony framework ecosystem familiar to PIC developers.
Key features include 32 KB Flash (32K x 8), 8 KB RAM, up to 34 general-purpose I/O pins, Peripheral Pin Select (PPS) for flexible signal routing, up to 4 channels of hardware DMA with automatic data-size detection, two UART modules, two I2C modules, two SPI/I2S modules, five 16-bit timers/counters, and a 10-bit ADC with up to 13 input channels. The PIC32MX120F032DT-V/TL operates from 2.3 V to 3.6 V and supports an industrial/automotive temperature range of -40C to +105C (V-temp grade). Connectivity peripherals include I2C, SPI, UART/USART, IrDA, LIN bus, and Parallel Master Port (PMP).
Architecturally, the PIC32MX1xx/2xx family uses a single-cycle MIPS32 M4K core with separate bus initiators for CPU and DMA, configurable priority, and separate PLLs for the system clock and USB (where present). PPS decouples digital peripheral inputs and outputs from fixed physical pins, simplifying board layout. The V-temp suffix (-V) and VTLA package code (-TL) identify the automotive-grade -40C to +105C operating range and 6x6 mm VTLA tape-and-reel packaging.
Typical applications include automotive body and chassis ECUs, LIN-connected sensor nodes, HVAC controls, industrial sensor hubs, consumer white-goods HMI controllers, and USB device peripherals. The AEC-Q100 qualification, 32 KB Flash, and 8 KB RAM make it well-suited for cost-sensitive nodes that need more performance than 8-bit MCUs but do not require a Cortex-M class processor.
When designing with this part, allocate the VTLA exposed thermal pad to a continuous copper pour on the PCB to lower theta-JA. PPS mappings must be configured in software and locked before peripheral use to avoid glitches on output compare and PWM outputs.
This page synthesizes distributor pricing, drop-in same-package alternatives, application guidance, and design notes not consolidated in the manufacturer datasheet alone, providing engineers and procurement teams with a single reference for engineering decisions on PIC32MX120F032DT-V/TL designs.
Drop-in alternatives for PIC32MX120F032DT-V/TL — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC32MX120F032DT-V/TL (same form factor and footprint) — differing in Package, ADC, Timers, Operating Temperature, DMA Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX120F032D-I/TL
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC32MX130F064D-I/TL
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC32MX150F256D-I/TL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX170F256D-I/TL
✅ Drop-In✓ In Stock
$3.16 / Unit
View Datasheet →PIC32MX270F256D-I/TL
✅ Drop-In✓ In Stock
$3.5 / Unit
View Datasheet →PIC32MX120F032D-I/ML
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC32MX110F016DT-V/TL
✅ Drop-In✓ In Stock
$2.07 / Unit
View Datasheet →PIC32MX120F032DT-V/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Core Count | 1 (single-core) |
| Maximum CPU Clock | 40 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 34 |
| Package | 44-VTLA (6x6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Temperature Grade | V (-40C to +105C) |
| ADC | 10-bit, up to 13 input channels |
| Timers | 5 x 16-bit timer/counter |
| DMA Channels | Up to 4 with automatic data size detection |
| Communication Peripherals | 2x UART, 2x I2C, 2x SPI/I2S, PMP, IrDA, LIN |
| Peripheral Pin Select (PPS) | Yes |
| AEC-Q100 Qualification | Qualified |
| RoHS Status | Compliant |
PIC32MX120F032DT-V/TL 44-vtla (6x6 mm) with exposed pad Pin Configuration Guide
Pin configuration for PIC32MX120F032DT-V/TL (44-vtla (6x6 mm) with exposed pad package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC32MX120F032DT-V/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX120F032DT-V/TL is suitable for 6 applications: Automotive Body and Chassis ECU, Industrial Sensor Hub with LIN or RS-485, Consumer HMI Controller, USB Device Peripheral (with PIC32MX270 variant upgrade path), HVAC and Climate Control Module, Battery-Powered Sensor Node.
Automotive Body and Chassis ECU
The PIC32MX120F032DT-V/TL is AEC-Q100 qualified and operates across -40C to +105C, which matches the cabin and certain underhood thermal envelopes of automotive body and chassis ECUs. Its 32 KB Flash comfortably hosts small RTOS-less state machines for door modules, mirror controllers, seat adjusters, and lighting nodes. The integrated LIN bus, two UART channels, and 5 PWM channels (5 output compare) cover typical body controller I/O. The 44-VTLA 6x6 mm footprint allows compact PCBs behind switches and in door trim. Pair with a TJA1027 LIN transceiver and a 12V-to-3.3V automotive buck regulator for a complete AEC-Q100 LIN node.
Recommended
Industrial Sensor Hub with LIN or RS-485
In industrial sensor hubs that aggregate analog and digital inputs from factory floor sensors, the PIC32MX120F032DT-V/TL provides a 10-bit ADC with up to 13 channels, PPS for flexible signal routing, and four DMA channels to offload UART, I2C, or SPI transfers. The 8 KB SRAM is sufficient to buffer hundreds of samples before forwarding to a host PLC. The 40 MHz MIPS32 M4K core sustains deterministic sampling and protocol handling for Modbus RTU over RS-485 or LIN. Use it together with an ISL3179 RS-485 transceiver and a TPS54302 buck regulator for a robust industrial sensor node.
Recommended
Consumer HMI Controller
For low-cost consumer HMI panels (white goods, thermostats, simple appliances), the PIC32MX120F032DT-V/TL offers the 32 KB Flash and 8 KB RAM needed to drive an LCD via PMP, scan a capacitive touch keypad, and run a small UI state machine. The PPS function reassigns SPI, UART, and I2C peripherals across the 34 I/O pins to simplify PCB routing to the display and the touch controller. The 44-VTLA package keeps the BOM and PCB area low. Pair with an AT42QT1010 touch sensor and a BU97950AFUV LCD segment driver for a complete HMI front end.
Recommended
USB Device Peripheral (with PIC32MX270 variant upgrade path)
The PIC32MX120F032DT-V/TL itself does not include a USB peripheral; designers needing USB typically migrate to the pin-compatible PIC32MX270F256D-44I/TL in the same 44-VTLA footprint, which adds USB 2.0 Full-Speed OTG. This makes the PIC32MX120F032DT-V/TL a cost-down pre-production option for developing firmware on a common footprint and migrating to USB when the design graduates. Pair the upgraded part with a USB3300 ULPI PHY or the on-chip USB FS transceiver and an ESD-protected USB-C connector (TYPE-C-31-M-12) for a production device.
Recommended
HVAC and Climate Control Module
Automotive and building HVAC controllers benefit from the AEC-Q100 qualification, -40C to +105C operating range, and 34 I/O pins of the PIC32MX120F032DT-V/TL. Five 16-bit timers drive triac-based phase control for fan speeds and heater regulation, while five input captures accurately measure zero-cross timing. The 10-bit ADC with 13 channels handles NTC thermistor networks, humidity sensors, and blower current sense. The 32 KB Flash fits an HVAC state machine with fault diagnostics. Pair with a BTS724G high-side switch and a MCP9700 temperature sensor.
Recommended
Battery-Powered Sensor Node
Although the PIC32MX120F032DT-V/TL is not a nano-power MCU, its multiple low-power sleep modes (Sleep, Idle, and deep sleep with RTCC) make it viable for intermittently active sensor nodes powered by 2x AA or a small Li-ion cell. The 2.3 V minimum VDD supports direct connection to two alkaline cells without a boost converter. PPS and DMA allow wake-on-UART or wake-on-I2C implementations with minimal firmware. The 44-VTLA exposed pad enables bottom-side heat spreading without a heatsink. Pair with a MAX17260 fuel gauge and a TPS62840 buck for a long-life battery sensor.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX120F032DT-V/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX120F032D-I/TL | PIC32MX130F064D-I/TL | PIC32MX150F256D-I/TL | PIC32MX170F256D-I/TL | PIC32MX270F256D-I/TL | PIC32MX110F016DT-V/TL |
|---|---|---|---|---|---|---|---|
| Package | 44-VTLA (6x6 mm) | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | MIPS32 M4K 32-bit, 40 MHz | MIPS32 M4K 32-bit, 40 MHz | MIPS32 M4K 32-bit, 40 MHz | MIPS32 M4K 32-bit, 50 MHz | MIPS32 M4K 32-bit, 50 MHz | MIPS32 M4K 32-bit, 50 MHz | MIPS32 M4K 32-bit, 40 MHz |
| Flash | 32 KB | 32 KB (same) | 64 KB (+100%) | 256 KB (+700%) | 256 KB (+700%) | 256 KB (+700%) | 16 KB (-50%) |
| SRAM | 8 KB | 8 KB (same) | 16 KB (+100%) | 32 KB (+300%) | 64 KB (+700%) | 64 KB (+700%) | 4 KB (-50%) |
| AEC-Q100 | Qualified (-V: -40C to +105C) | Not AEC-Q100 (-40C to +85C) | Not AEC-Q100 (-40C to +85C) | Not AEC-Q100 (-40C to +85C) | Not AEC-Q100 (-40C to +85C) | Not AEC-Q100 (-40C to +85C) | AEC-Q100 (-V grade) |
| USB 2.0 FS OTG | No | No | No | No | No | Yes | No |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- AEC-Q100 qualified for automotive ECUs at -40C to +105C (vs PIC32MX120F032D-I/TL)
- Memory upgrade path within the same 44-VTLA footprint (vs PIC32MX110F016DT-V/TL)
- Dual automotive and cost-sensitive upgrade to PIC32MX170F256D (vs PIC32MX170F256D-I/TL)
Design Notes
The 44-VTLA package uses an exposed thermal pad that must be soldered to a continuous PCB copper pour to achieve the lowest theta-JA. Estimated: at 40 MHz CPU, 3.3 V VDD, and typical peripheral activity, the core draws roughly 25-30 mA, dissipating about 80-100 mW. With at least 200 mm^2 of top-side copper connected to the exposed pad, theta-JA drops to roughly 30 C/W, keeping junction rise at +85C ambient below +5C. The part will operate well below its +105C V-temp limit; for higher ambient environments, route heat through thermal vias to an internal ground plane.
Place one 10 uF bulk and one 0.1 uF ceramic decoupling capacitor as close as possible to each VDD/VDDCORE pin pair on every PIC32MX1xx/2xx design. The PIC32MX120F032DT-V/TL has separate VDD and VDDCORE pins; the on-chip voltage regulator generates 1.8 V core and requires its own 10 uF + 0.1 uF network at VDDCORE. According to the family datasheet, failure to place these capacitors within 5 mm of the pins can cause intermittent brown-out resets under dynamic load.
Peripheral Pin Select (PPS) mappings are NOT retained through a software reset by default; on every reset, PPS registers return to their locked reset state and remapping must be re-applied in startup code. A common bug is configuring PPS once and expecting it to persist - this works only if the PPS lock is enabled. Always reconfigure PPS in the main initialization sequence before enabling peripheral outputs, otherwise the output compare, UART, or SPI peripheral will appear dead with no apparent hardware fault.
Route the 12 MHz primary crystal traces symmetrically and keep them inside a ground guard ring to limit EMI injection into the analog ADC channels. The PIC32MX120F032DT-V/TL 10-bit ADC can reach ENOB around 9 bits when its AVDD pin is filtered with a ferrite bead and a 10 uF + 0.1 uF capacitor. Reference datasheet section on ADC accuracy for layout recommendations. Keep ADC traces short and away from PWM switching nodes to minimize digital switching noise coupling into the analog rail.
When using the SPI peripheral above 10 MHz in high-noise automotive environments, add a 33 ohm series resistor at the SDO output to dampen reflections on long PCB traces. The PPS remap lets SDO be moved to a pin adjacent to the SCK signal, reducing stub length. For I2C buses longer than 50 mm, use 4.7 kohm pull-ups and verify with a logic analyzer that the rise time meets the chosen I2C mode (100 kHz standard, 400 kHz fast, 1 MHz fast-plus).
Compliance Information
AEC-Q100 qualified per Microchip USA and DigiKey listings. RoHS and REACH compliant per Microchip product page. Lead-free (Pb-free) and halogen-free per package marking.
