PIC32MX120F064H-V/MR - 32-bit MCU, 64KB Flash, 40MHz, 64-QFN | Microchip
MPN: PIC32MX120F064H-V/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.78 | $3.78 |
| 10 | $3.4 | $34.00 |
| 100 | $2.95 | $295.00 |
| 500 | $2.55 | $1,275.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC32MX120F064H-V/MR Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals. The PIC32MX1XX/2XX/5XX family from Microchip sits in the mid-range of 32-bit embedded MCUs, positioned between simple Cortex-M0+ devices and higher-performance application processors, and is widely used in consumer, industrial, and automotive designs where deterministic MIPS-based architecture, MPLAB Harmony ecosystem support, and pin-rich QFP/QFN packages simplify board layout.
Key features include two I2S and four SPI modules for codec and serial communication, Peripheral Pin Select (PPS) for flexible signal routing, a Parallel Master Port (PMP) with dual read/write buffers for graphics interfaces, a 10-bit ADC with up to 53 channels depending on package, mTouch capacitive-touch support, an integrated CTMU (Charge Time Measurement Unit), and a wide operating voltage from 2.3V to 3.6V. The MIPS32 M4K core executes most instructions in one cycle, and the dedicated DMA engine offloads data movement from the CPU.
The architecture combines a 5-stage pipeline MIPS32 M4K core with tightly-coupled Flash and SRAM, hardware multiply/divide, a 16-bit wide instruction path, and a Peripheral Pin Select engine that maps digital peripherals to almost any I/O pin. The CTMU plus 10-bit ADC provides touch and proximity sensing without external ICs, while PMP plus DMA accelerates parallel LCD control for cost-sensitive graphical HMI.
Typical applications include automotive body electronics and HMI, industrial control panels, low-cost graphical displays, USB audio/HID accessories, capacitive-touch user interfaces, and connected sensor nodes where 64KB Flash and 8KB SRAM are sufficient for the application stack. The extended -40C to +105C operating range and AEC-Q100 qualification make this part suitable for underhood and cabin automotive modules.
When designing with this device, ensure the 64-pin QFN EP (exposed pad) is soldered to a sufficient copper pour for thermal dissipation - 1 oz copper over at least 1 square inch is recommended for full industrial temperature operation. The PPS function lets remap digital peripherals post-firmware-load, but analog pins have fixed assignments and must be planned at board layout time.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers evaluate, source, and integrate the PIC32MX120F064H-V/MR with confidence.
Drop-in alternatives for PIC32MX120F064H-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 PIC32MX120F064H-V/MR (same form factor and footprint) — differing in Package, ADC, Parallel Master Port (PMP), Operating Temperature Range, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX120F064H-I/MR
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →PIC32MX130F064B-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX170F064B-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX120F064HT-V/MR
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC32MX120F064H-V/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.05 / Unit
View Datasheet →PIC32MX120F064H-V/MR Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K |
| Core Size | 32-Bit Single-Core |
| Maximum CPU Speed | 40 MHz |
| Performance | 50 DMIPS |
| Program Memory (Flash) | 64 KB (64K x 8) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 53 (max, package-dependent) |
| Package | 64-QFN (9x9 mm) with Exposed Pad |
| ADC | 10-bit, up to 53 channels |
| SPI Modules | 4 |
| I2S Modules | 2 |
| UART Modules | 2 |
| I2C Modules | 2 |
| Parallel Master Port (PMP) | Yes, dual read/write buffers |
| Peripheral Pin Select (PPS) | Yes |
| DMA Channels | Yes |
| CTMU (Capacitive Touch) | Yes |
| USB | Full-Speed USB 2.0 Device/Host/OTG |
| Operating Temperature Range | -40 C to +105 C (V grade) |
| Automotive Qualification | AEC-Q100 |
| Mounting Type | Surface Mount |
| RoHS | Compliant |
| MSL Level | 3 (per JEDEC J-STD-020, 168 hours) |
PIC32MX120F064H-V/MR 64-qfn (9x9 mm) with exposed pad Pin Configuration Guide
Pin configuration for PIC32MX120F064H-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 PIC32MX120F064H-V/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX120F064H-V/MR is suitable for 6 applications: Automotive Body Electronics, Industrial Control HMI, USB Audio and HID Accessories, Capacitive Touch User Interface, Low-Cost Graphical Display Module, Connected Sensor Node.
Automotive Body Electronics
The PIC32MX120F064H-V/MR is well suited for automotive body-electronics modules such as HVAC control panels, mirror controllers, lighting control units, and instrument cluster sub-modules. Its AEC-Q100 qualification and -40C to +105C extended temperature range satisfy underhood and cabin automotive requirements, while the 50 DMIPS MIPS32 M4K core runs CAN/LIN firmware, capacitive-touch HMI, and small graphical LCDs. The 64 KB Flash and 8 KB SRAM are sufficient for AUTOSAR-lite stacks or vendor driver sets; the integrated USB 2.0 FS controller enables diagnostic interfaces. Automotive designers should still review the device errata for the USB PHY before finalizing the design.
Recommended
Industrial Control HMI
Industrial HMI designs benefit from the PIC32MX120F064H-V/MR's Parallel Master Port with dual buffers, which can directly drive small monochrome or color TFT LCDs without an external graphics controller. The MIPS32 M4K core at 40 MHz handles keyscan, encoder input, and serial protocols (RS-232/RS-485) while the integrated 10-bit ADC reads analog sensors. Peripheral Pin Select lets engineers remap UART, SPI, and I2C pins in firmware, simplifying PCB routing for densely packed front panels. For washdown or outdoor industrial environments, conformal coating plus the AEC-Q100 temperature margin provides reliability headroom.
Recommended
USB Audio and HID Accessories
The PIC32MX120F064H-V/MR's integrated Full-Speed USB 2.0 Device/Host/OTG controller simplifies USB audio class 1.0 speakers, USB microphones, USB HID keypads, and USB-to-UART bridges. The two I2S modules connect directly to audio DACs/ADCs such as the Texas Instruments PCM5101A, while the DMA engine offloads audio sample transfer from the CPU. For HID devices, the 50 DMIPS MIPS core and 8 KB SRAM support multi-interface descriptors with low latency. Designers must follow USB 2.0 FS PCB layout practices - 90 ohm differential impedance on D+/D- lines and proper VBUS bulk capacitance.
Recommended
Capacitive Touch User Interface
The PIC32MX120F064H-V/MR integrates the CTMU (Charge Time Measurement Unit) plus a 10-bit ADC, enabling mTouch capacitive-touch sensing without external ICs. Designs can implement buttons, sliders, wheels, and proximity sensors using only copper pads, the MCU, and firmware. The 53 available ADC channels on the 64-pin package support large keypads and multi-zone touch panels. CTMU-based touch outperforms pure software touch libraries in noise immunity because the hardware handles charge timing. Layout must include guard traces around touch sensors and adequate ground flood for stable readings.
Recommended
Low-Cost Graphical Display Module
The PMP module with dual read/write buffers plus DMA makes the PIC32MX120F064H-V/MR ideal for cost-sensitive graphical display modules driving small QVGA TFT or higher-resolution monochrome LCDs. The 64 KB Flash stores font tables, bitmaps, and the GUI framework; the 8 KB SRAM holds framebuffers for small displays. Designers should use PPS to free PMP pins for general I/O when the display is not active. The PIC32MX120F064H-V/MR offers a strong price/performance fit versus adding an external graphics controller in cost-sensitive applications.
Recommended
Connected Sensor Node
The PIC32MX120F064H-V/MR is a good fit for connected sensor nodes that aggregate analog sensor data and forward it over UART, SPI, USB, or CAN. The 10-bit ADC reads temperature, pressure, and flow sensors; the I2C bus connects to digital sensors; and the CTMU handles capacitive liquid-level sensing. Sleep current plus flexible clock gating suits battery-powered sensor nodes, while the AEC-Q100 rating supports industrial sensor installations. Wireless connectivity can be added with an SPI-attached transceiver such as the MRF24J40 or an external Bluetooth/Wi-Fi module.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX120F064H-V/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX120F064H-I/MR | PIC32MX130F064B-I/MR | PIC32MX170F064B-I/MR | PIC32MX120F064HT-V/MR | PIC32MX120F064H-V/PT |
|---|---|---|---|---|---|---|
| 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-TQFP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 16 KB | 16 KB | 8 KB | 8 KB |
| Maximum CPU Speed | 40 MHz | 40 MHz | 40 MHz | 50 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40C to +105C (V grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +105C (V grade) | -40C to +105C (V grade) |
| Automotive (AEC-Q100) | Yes | No | No | No | Yes | Yes |
| USB 2.0 FS | Yes (Device/Host/OTG) | Yes | Yes | Yes | Yes | Yes |
| Approx. Unit Price (qty 1) | $3.78 | $3.60 | $3.85 | $4.10 | $3.78 | $3.92 |
Key Differentiators
- AEC-Q100 qualified with -40C to +105C V-temperature range (vs PIC32MX120F064H-I/MR)
- Highest RAM density in the 64 KB Flash V-grade PIC32MX1XX line (vs PIC32MX130F064B-I/MR)
- Highest CPU speed available in V-temperature PIC32MX12x family (vs PIC32MX170F064B-I/MR)
Design Notes
The 64-QFN package has an exposed thermal pad (EP) on its underside. The EP MUST be soldered to the PCB ground plane for both thermal dissipation and electrical performance. Use an EP land area equal to the package EP size (typically 5x5 mm minimum), flood it with 1 oz copper, and connect it to internal ground with at least 9 thermal vias in a 3x3 grid. Without the EP soldered, junction temperature rises rapidly under heavy CPU activity and USB bus traffic.
Decouple VDD pins with 100 nF ceramic capacitors placed as close as possible to each VDD/VSS pair. Add a single 10 uF bulk capacitor on the main 3.3V rail within 25 mm of the MCU. The PIC32MX120F064H-V/MR has multiple VDD pins (digital, analog, PLL); follow the reference schematic in the family datasheet for the proper sequencing. AVSS must connect to a clean analog ground island to achieve ADC performance, while AVSS can share a single ground plane with VSS if the layout isolates noisy return currents.
Peripheral Pin Select (PPS) lets remap digital peripherals to almost any I/O pin, BUT analog pins (ADC inputs, comparators, Vref+) are NOT remappable - they are fixed at specific pads. Plan analog inputs at board layout time, before firmware development. Also, USB D+/D- are NOT PPS-remappable and must be routed as a 90 ohm differential pair per USB 2.0 FS specification. Skipping these layout constraints is the most common reason for non-functional PIC32MX1XX designs in production.
For USB Full-Speed operation, the D+ line requires a 1.5 kohm pull-up to 3.3V to signal connect status; the firmware toggles this pull-up to control soft-connect/soft-disconnect. Place the pull-up resistor within 5 mm of the MCU's D+ pin. Trace impedance should target 90 ohm differential on a continuous reference ground plane under the D+/D- pair. For designs near noisy switching regulators, add a common-mode choke to improve radiated EMI margins.
Compliance Information
AEC-Q100 qualified per Microchip automotive product page. RoHS/REACH compliant. Lead-free and halogen-free per Microchip material declaration. MSL 3 per JEDEC J-STD-020.
