PIC32MX120F064HT-V/MR - 40MHz 32-bit MCU, 64KB, QFN-64 | Microchip
MPN: PIC32MX120F064HT-V/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.07 | $30.70 |
| 100 | $2.74 | $274.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC32MX120F064HT-V/MR Overview
A 32-bit microcontroller (MCU) is a single-chip processor that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripherals such as ADC, timers, and communication interfaces. Microcontrollers form the lowest tier of the embedded computing hierarchy: MCU -> embedded processor -> system-on-chip (SoC) -> microprocessor, and serve as the decision-making element in everything from appliances to automotive ECUs. The 32-bit class specifically delivers higher arithmetic throughput and address space than 8/16-bit MCUs, while remaining more power-efficient and lower-cost than application processors.
Key features of the PIC32MX120F064HT-V/MR include 64 KB (64K x 8) Flash, 8 KB SRAM, a 10-bit 1 Msps ADC, I2S audio interface, CTMU (Charge Time Measurement Unit) for capacitive touch, PMP (Parallel Master Port), UART, I2C, and SPI peripherals, plus DMA for offloading core data movement. Operating voltage spans 2.5V-3.6V with industrial temperature grade (-40C to +105C).
The device uses the proven MIPS32 M4K Harvard architecture with single-cycle multiply and hardware divide, supporting Microchip's MPLAB Harmony and XC32 toolchains. Debug is via 2-wire ICSP using any PGECx/PGEDx pair, making prototype bring-up simple with MPLAB Snap or ICD programmers.
Typical applications include industrial control panels, automotive body and lighting modules, consumer audio accessories (the I2S port supports external DACs), capacitive touch user interfaces via CTMU, and low-power IoT sensor nodes. The AEC-Q100 qualification supports automotive deployment.
When designing, ensure all VSS/VDD pairs are properly decoupled and trace lengths to the 40 MHz crystal are minimized. Verify PGECx/PGEDx pair selection in your ICSP footprint, since the PIC32MX120F064H exposes multiple pairs.
This page synthesizes distributor pricing, AEC-Q100 context, and drop-in PIC32MX alternatives that XAIPART's standard datasheet and inspector workflows do not aggregate in one view.
Drop-in alternatives for PIC32MX120F064HT-V/MR — 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 PIC32MX120F064HT-V/MR (same form factor and footprint) — differing in Package, ADC, Parallel Master Port (PMP), Maximum CPU Speed, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX120F064H-V/MR
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC32MX120F064HT-I/MR
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC32MX130F064B-V/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX170F256B-V/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX230F064B-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX110F016C-V/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32MX120F064HT-V/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K (Harvard) |
| Core Size | 32-Bit Single-Core |
| Maximum Clock Speed | 40 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| RAM | 8 KB |
| Supply Voltage Range | 2.5 V to 3.6 V |
| Operating Temperature | -40C to +105C (V grade) |
| ADC | 10-bit, 1 Msps |
| I2S Interface | Yes |
| CTMU | Yes (capacitive touch) |
| DMA | Yes |
| Package | 64-QFN (9x9 mm) with Exposed Pad |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
| Automotive Qualification | AEC-Q100 |
| RoHS | Compliant |
PIC32MX120F064HT-V/MR 64-qfn (9x9 mm) with exposed pad Pin Configuration Guide
Pin configuration for PIC32MX120F064HT-V/MR (64-qfn (9x9 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 PIC32MX120F064HT-V/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX120F064HT-V/MR is suitable for 7 applications: Automotive Body and Lighting Control, Capacitive Touch User Interfaces, I2S Audio Accessories, Industrial Control and Automation, Low-Power IoT Sensor Nodes, Consumer Audio and Appliance Control, Medical Monitoring Devices.
Automotive Body and Lighting Control
The PIC32MX120F064HT-V/MR's AEC-Q100 qualification and -40C to +105C V-temperature grade make it a strong fit for automotive body modules such as interior lighting, mirror controllers, and HVAC panel interfaces. Its 40 MHz MIPS core delivers 40 DMIPS, sufficient for CAN-capable firmware stacks and PWM-controlled LED dimming. The 64-QFN package's exposed pad handles the thermal load of continuously-driven LED drivers. Combined with the 10-bit ADC, the device reads photodiode and current-feedback channels in real time, while the CTMU simplifies touch-button panels.
Recommended
Capacitive Touch User Interfaces
The PIC32MX120F064HT-V/MR integrates the CTMU peripheral, which combined with the on-chip ADC yields a hardware charge-time measurement engine for self-capacitance and mutual-capacitance touch sensing. Engineers can scan 10-20 touch electrodes without an external touch controller, reducing BOM cost in appliances, industrial panels, and consumer products. The 8 KB SRAM holds the touch state machine and debounce filter, while the 40 MHz MIPS core runs the UI state logic and communication protocol. The QFN-64 footprint places I/O close to electrode traces.
Recommended
I2S Audio Accessories
The PIC32MX120F064HT-V/MR's I2S port drives external audio DACs and codecs for sound bars, headphones, and intercom stations. Its DMA controller offloads audio samples from the core, freeing MIPS for user interface and Bluetooth/SD card management. With 64 KB Flash, the MCU holds the audio mixer, EQ, and DSP routines. The 40 MHz core performs audio processing with headroom for sample-rate conversion and small FIR filters. AEC-Q100 grade also supports automotive audio amplifiers and AVAS (Acoustic Vehicle Alerting System) products.
Recommended
Industrial Control and Automation
The PIC32MX120F064HT-V/MR fits industrial PLC sub-modules, sensor hubs, and motor-control auxiliary boards. The PMP (Parallel Master Port) interfaces to FPGA or external bus peripherals, while UART, SPI, and I2C handle industrial sensor networks. The 10-bit ADC at 1 Msps supports fast current/voltage sampling for closed-loop PID control. Housed in a QFN-64 with thermal pad, the device sustains continuous ADC activity without external cooling. Combined with the AEC-Q100 grade, it bridges industrial and automotive deployments.
Recommended
Low-Power IoT Sensor Nodes
The PIC32MX120F064HT-V/MR serves as the local controller in IoT edge nodes where deterministic response matters more than deep-sleep uA. The MIPS32 M4K delivers faster interrupt response than XP variants, ensuring precise timing for sensor sampling. Peripherals like I2C, UART, and the 10-bit ADC handle typical sensor suites (temperature, humidity, accelerometers). With 8 KB SRAM and 64 KB Flash, the MCU runs the network stack (LoRa, sub-GHz proprietary, or Wi-Fi co-processor) without off-chip memory. AEC-Q100 grade suits outdoor/automotive deployments.
Recommended
Consumer Audio and Appliance Control
The PIC32MX120F064HT-V/MR powers consumer electronics such as washing-machine controllers, smart thermostats, and audio amplifier front-ends. Its 32-bit MIPS throughput handles TFT LCD refresh, push-button handling, and audio tone generation concurrently. The CTMU simplifies touch-panel integration for glass-front appliances. DMA offloads sensor and audio streams, leaving the core free for protocol stacks. The 64-QFN package supports small-form-factor industrial layouts. XAIPART recommends this part for designs balancing cost and automotive-grade robustness.
Recommended
Medical Monitoring Devices
The PIC32MX120F064HT-V/MR's deterministic MIPS core and integrated 10-bit ADC suit low-power medical devices such as pulse oximetry front-ends, glucose-meter interfaces, and portable nebulizer controllers. Its deterministic interrupt latency ensures reliable timing for sensor sample acquisition. The I2S port streams processed audio for telehealth stethoscopes. Although AEC-Q100 is automotive-not-medical, the same die supports IEC 60730-class safety patterns. Engineers building medical peripherals benefit from Microchip's MPLAB XC32 functional-safety libraries.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX120F064HT-V/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX120F064H-V/MR | PIC32MX120F064HT-I/MR | PIC32MX130F064B-V/MR | PIC32MX170F256B-V/MR | PIC32MX230F064B-I/MR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same |
| Core / Architecture | MIPS32 M4K @ 40 MHz | MIPS32 M4K @ 40 MHz | MIPS32 M4K @ 40 MHz | MIPS32 M4K @ 40 MHz | MIPS32 M4K @ 40 MHz | MIPS32 M4K @ 50 MHz |
| Flash | 64 KB | 64 KB | 64 KB | 128 KB | 256 KB | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 16 KB | 64 KB | 16 KB |
| Operating Temperature | -40C to +105C (V grade) | -40C to +105C (V grade) | -40C to +85C (I grade) | -40C to +105C (V grade) | -40C to +105C (V grade) | -40C to +85C (I grade) |
| AEC-Q100 Qualified | Yes | Yes | No | Yes | Yes | No |
| I2S / CTMU / DMA | All present | All present | All present | All present | All present | All present |
Key Differentiators
- Integrated CTMU for capacitive touch without external IC (vs PIC32MX230F064B-I/MR)
- AEC-Q100 grade at V temperature (-40C to +105C) (vs PIC32MX120F064HT-I/MR)
- 64 KB Flash with I2S in compact QFN-64 (vs PIC32MX170F256B-V/MR)
Design Notes
Estimated: at VDD = 3.3V and 40 MHz operation with all peripherals active, the PIC32MX120F064HT-V/MR core plus I/O draws roughly 35-45 mA, requiring an LDO such as MCP1700-3302E rated at least 100 mA. Place a 10 uF ceramic + 0.1 uF decoupling pair within 5 mm of every VDD/VSS pin pair. The QFN-64 has multiple supply pairs that must all be connected - leaving any floating will cause undefined behaviour or latch-up.
The 64-QFN package exposes a thermal pad (EP) that MUST be soldered to a copper plane of at least 1 square inch for proper heat dissipation. Without the thermal pad soldered, the device can overheat under sustained 40 MHz operation with active ADC + I2S + DMA, especially at the +105C upper limit. Estimate theta_JA around 28 C/W with proper pad soldering versus 60+ C/W without.
Route the 40 MHz crystal traces symmetrically and within 10 mm of the OSCI/OSCO pins. Avoid routing high-speed digital lines parallel to the ADC analog inputs - cross at 90 degrees if unavoidable. Place the 0.1 uF + 10 uF decoupling pair near each VDD pin. The QFN-64 land pattern requires NSMD pads with a 0.5 mm pitch - refer to Microchip's land-pattern design guide.
Do not confuse PIC32MX120F064HT-V/MR (QFN-64, V grade, AEC-Q100) with PIC32MX120F064HT-I/PT (TQFP-64, I grade) - they are not pin-compatible despite sharing the same die. Always verify the package suffix and temperature grade in the part number: 'MR' = QFN-64 (9x9), 'PT' = TQFP-64. Also note the 'T' indicates tape-and-reel packaging.
The 10-bit ADC achieves 1 Msps only with a low-impedance source (<= 2 kohm) and proper sample-time configuration. Add an op-amp buffer such as MCP6002 between high-impedance sensors and the ADC inputs to avoid ADC accuracy degradation. Use DMA to offload ADC conversion results, otherwise core jitter can drop effective sample rates.
Compliance Information
AEC-Q100 Grade V (-40C to +105C) qualified. Lead-free finish. RoHS and REACH compliant per Microchip material declarations.
