PIC32MX120F064H-V/PT
PIC32MX120F064H-V/PT - 64KB Flash 32-bit MCU | Microchip
The Microchip Technology PIC32MX120F064H-V/PT is a 32-bit MIPS M4K microcontroller with 64KB Flash and 8KB SRAM, housed in a 64-pin TQFP (10x10 mm) package qualified to AEC-Q100 automotive standards. Operating at 40 MHz (up to 50 MHz / 83 DMIPS), it integrates 64KB program Flash, 8KB RAM, 10-bit ADC up to 1 Msps, two I2S and four SPI peripherals, two I2C ports, five 16-bit timers, and a Charge Time Measurement Unit (CTMU) for mTouch capacitive touch sensing.
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals onto one die. The PIC32MX120 family belongs to the broader category of 32-bit microcontrollers, which sit above 8/16-bit MCUs in performance and target applications requiring complex math (DSP), large code footprints, or rich connectivity. Microchip's PIC32 family is built on the MIPS M4K core, offering deterministic performance, low interrupt latency, and a mature toolchain (MPLAB X, XC32). Automotive-grade parts such as the PIC32MX120F064H-V/PT are AEC-Q100 qualified and support extended temperature grades including -40C to +125C (Grade 1) and -40C to +150C (Grade 0) for under-the-hood deployments.
Differentiating features include Peripheral Pin Select (PPS) for flexible digital I/O remapping, a Parallel Master Port (PMP) with dual read/write buffers for graphics or external memory interfacing, USB 2.0 full-speed OTG, CAN 2.0B, and a 16-bit parallel master port. The CTMU block enables robust capacitive touch measurement without external circuitry, making the device well-suited for HMI panels. The 64-pin TQFP (10x10 mm) footprint is the same as many other PIC32MX1/2/5XX 64-pin family members, simplifying board reuse across the family.
Typical applications include automotive body and gateway controllers, HMI panels with capacitive touch, industrial sensor hubs, low-cost audio peripherals via I2S, USB devices, and CAN-connected ECUs. The combination of CAN, USB, PMP, and mTouch makes the part a versatile bridge MCU for infotainment, climate control, and lighting modules.
When designing with this device, ensure VDD decoupling is generous (100 nF + 4.7 uF per pin pair), the ICSP pins (PGECx/PGEDx) are accessible for production programming, and the Trace/JTAG pins are not left floating. The PPS feature requires careful peripheral mapping during code bring-up to avoid pin conflicts.
This page synthesizes distributor pricing, AEC-Q100-qualified drop-in alternatives, and practical design notes that go beyond the manufacturer's datasheet, helping engineers compare parts and select the right variant for their automotive or industrial design.
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