PIC32MX370F512HT-V/MR - 80MHz 512KB Flash 32-bit MCU | Microchip
MPN: PIC32MX370F512HT-V/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.48 | $64.80 |
| 100 | $5.76 | $576.00 |
| 500 | $5.18 | $2,590.00 |
| 1,000 | $4.61 | $4,610.00 |
PIC32MX370F512HT-V/MR Overview
A 32-bit MCU (microcontroller unit) is a single-chip computer that integrates a 32-bit processor core, program and data memory, and a rich set of peripherals (ADC, timers, communication controllers, GPIO) on one die. PIC32MX3/4 devices belong to the larger MIPS-based PIC32 family, which sits in the microcontroller hierarchy as: PIC32MX370 -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. These devices target cost-sensitive applications that need 32-bit performance but cannot afford Cortex-M4-class pricing.
Key features include 80 MHz core clock, hardware multiply/divide, 16-bit parallel master port for external memory, 10-bit ADC with up to 1 Msps, and multiple low-power modes (Idle, Sleep). The 2.3V to 3.6V single-supply operation simplifies power tree design. The 9x9 mm 64-VQFN package provides a compact footprint while exposing 51 GPIO through peripheral pin select.
Architecturally, the PIC32MX370 uses a 5-stage pipelined MIPS32 M4K Harvard bus, with separate Flash and SRAM buses, enabling single-cycle Flash fetch and 32-bit data paths. This architecture is pin-compatible with most PIC24/dsPIC DSC devices, simplifying migration paths.
Typical applications include industrial control panels, USB peripherals, audio processing interfaces, and graphic TFT display controllers. The on-chip USB 2.0 Full-Speed controller and dedicated I2S blocks make it common in MP3 players, dictation devices, and HMI touch panels.
Design consideration: leave an exposed pad soldering window on the PCB under the VQFN thermal pad to maximize heat dissipation. Verify operating voltage is held within 2.3V-3.6V to ensure Flash programming reliability. This synthesis of pin-compatibility guidance, drop-in cross-references, and design notes is not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MX370F512HT-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 PIC32MX370F512HT-V/MR (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Timers, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX370F512HT-I/MR
✅ Drop-In✓ In Stock
$4.65 / Unit
View Datasheet →PIC32MX370F512H-V/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX270F512HT-V/MR
✅ Drop-In✓ In Stock
$2.53 / Unit
View Datasheet →PIC32MX350F256HT-V/MR
✅ Drop-In✓ In Stock
$3.65 / Unit
View Datasheet →PIC32MX330F064HT-V/MR
✅ Drop-In✓ In Stock
$4.12 / Unit
View Datasheet →PIC32MX370F512HT-V/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Frequency | 80 MHz |
| Program Memory | 512 KB Flash |
| Data Memory | 128 KB SRAM |
| Operating Voltage | 2.3 V to 3.6 V |
| Operating Temperature | -40C to +105C (V grade) |
| Package | 64-VQFN 9x9 mm (MR) |
| GPIO Count | Up to 51 |
| ADC | 10-bit, 1 Msps, up to 28 channels |
| UART | 2 channels |
| SPI / I2S | 2 channels |
| I2C | 2 channels |
| USB | USB 2.0 Full-Speed Device/Host/Embedded |
| Analog Comparators | 2 |
| Timers | 5 x 16-bit / 2 x 32-bit |
| PMP (Parallel Master Port) | Yes, 16-bit |
| DMA Channels | 4 |
| Mounting Type | Surface Mount |
PIC32MX370F512HT-V/MR 64-vqfn 9x9 mm (mr) Pin Configuration Guide
Pin configuration for PIC32MX370F512HT-V/MR (64-vqfn 9x9 mm (mr) 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 PIC32MX370F512HT-V/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX370F512HT-V/MR is suitable for 6 applications: USB Peripheral Devices, Audio Processing HMI, Industrial Control Panels, TFT Graphics Display Controllers, USB Audio Class Speakers, Touch-Sensing HMI.
USB Peripheral Devices
The PIC32MX370F512HT-V/MR integrates a USB 2.0 Full-Speed controller supporting Device, Host, and Embedded Host operation, making it ideal for USB peripherals like CDC serial adapters, HID keyboards, and MSD card readers. The 512 KB Flash is sufficient for the Microchip MLA library; it partitions show 80 KB used for HID + 60 KB for CDC combined, leaving ample room for user application. The 80 MHz MIPS32 M4K core provides comfortable headroom over the 12 Mbps USB Full-Speed ceiling. Design tip: provide a 48 MHz crystal (or external clock) on the USB-capable pins and follow USB-IF impedance specs on the D+/D- differential pair (90D nominal). This MCU is pin-compatible with PIC24FJ and offers a migration path to USB-over-FPDC.
Recommended
Audio Processing HMI
The PIC32MX370F512HT-V/MR's dual I2S interfaces and 512 KB program space make it an ideal MCU for audio playback and recording applications such as MP3 players, voice recorders, and intercom panels. Per Microchip application notes, the I2S peripheral operates with DMA for low-CPU-overhead streaming, allowing the M4K core to focus on decoding algorithms or user-interface tasks. With 128 KB of SRAM, designers can buffer several seconds of audio at 16 kHz/16-bit without external memory. The 80 MHz clock provides 80 MIPS, which is more than adequate for Ogg Vorbis or ADPCM decoding. Connect an external I2S DAC like the TI TLV320AIC23B to dual-band channels.
Recommended
Industrial Control Panels
The PIC32MX370F512HT-V/MR with -40C to +105C operating range and 51 GPIO is well suited for industrial HMI panels controlling machinery, PLCs, or building automation. The 10-bit ADC with up to 28 channels can read multiple analog sensors simultaneously at high resolution, while the 16-bit PMP (parallel master port) connects directly to TFT LCD modules for graphics display. The 5-stage pipelined MIPS32 core handles real-time tasks like PID control loops at 256 B Msps interrupt rates, with hardware multiply enabling 32-bit math at single-digit microsecond cycle counts.
Recommended
TFT Graphics Display Controllers
The PIC32MX370F512HT-V/MR's 16-bit Parallel Master Port (PMP) drives TFT LCDs up to QVGA (320x240) at 30 fps using the PIC32MX3XX/4XX datasheet's reference design. The 80 MHz clock and DMA channels allow direct-to-display memory updates without CPU at bus-master contention. The 128 KB SRAM can buffer full frames at QVGA of 320x240 of 150 KB needed, leaving headroom for double-buffering at lower resolutions. Pair with an existing low-cost touch controller for capacitive touch panels. The DSP extensions in the M4K core help accelerate JPEG decompression for image-rich displays.
Recommended
USB Audio Class Speakers
With USB 2.0 Full-Speed and dual I2S, the PIC32MX370F512HT-V/MR can implement a USB speaker endpoint with I2S routing at 48 kHz/16-bit dual I2S at 96 kHz/24-bit. The Microchip MLA USB+UAC library is approximately 30 KB, fitting in 48 KB alongside the I2S driver and application logic. The 80 MHz MCU pulls core usage to 32% with DMA-driven I2S ISR at 5 kHz, leaving room for button-mode GUI, mic-mode mixing, and user-mode routing. Suitable for USB audio dongles and headsets.
Recommended
Touch-Sensing HMI
The PIC32MX370F512HT-V/MR's CTMU (Charge Time Measurement Unit) peripheral enables up to 32 capacitive touch buttons or sliders with no external components, per Microchip application note AN1250. Combined with the 80 MHz peak and the 5-stage pipeline, the M4K core can scan 28 buttons at 200 Hz, with 0.05 pF resolution, while leaving 95% CPU for application logic. The 512 KB Flash easily accommodates the mTouch library at 96 KB alongside user code.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX370F512HT-V/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX370F512HT-I/MR | PIC32MX370F512H-V/MR | PIC32MX270F512HT-V/MR | PIC32MX350F256HT-V/MR | PIC32MX330F064HT-V/MR |
|---|---|---|---|---|---|---|
| Package | 64-VQFN 9x9 mm (MR) | 64-VQFN 9x9 mm - same | 64-VQFN 9x9 mm - same | 64-VQFN 9x9 mm - same | 64-VQFN 9x9 mm - same | 64-VQFN 9x9 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | MIPS32 M4K | MIPS32 M4K - same | MIPS32 M4K - same | MIPS32 M4K - same | MIPS32 M4K - same | MIPS32 M4K - same |
| Max Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 64 KB (-87.5%) |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 32 KB (-75%) | 16 KB (-87.5%) |
| USB | Yes (FS Device/Host) | Yes | Yes | No | Yes | Yes |
| Temperature Grade | V (-40C to +105C) | I (-40C to +85C) - 20C narrower | V - same | V - same | V - same | V - same |
| Approx. Qty 1 Price (USD) | 7.20 | 6.90 (-4%) | 7.00 | 6.50 (-10%) | 5.80 (-19%) | 4.50 (-37.5%) |
Key Differentiators
- V-grade extended temperature support (vs PIC32MX370F512HT-I/MR)
- Maximum Flash density in PCMX market (vs PIC32MX330F064HT-V/MR)
- Includes USB 2.0 Full-Speed (vs PIC32MX270F512HT-V/MR)
Design Notes
Estimated: At 80 MHz and 3.3 V, the PIC32MX370F512HT-V/MR draws ~70 mA active (per datasheet DC characteristics), dissipating ~230 mW. The 9x9 mm 64-VQFN has a typical theta_JA of ~28 C/W, giving a junction-to-ambient rise of ~6.5 C at 230 mW. The exposed thermal pad (EP) must be soldered to a PCB copper pour of at least 1 sq inch for rated performance; without EP soldering, peak 50 mW derating applies. Maximum junction temperature is +150 C; V-grade (-40 to +105 C) leaves 45 C margin.
Route the 48 MHz USB clock traces with a characteristic impedance of 50 ohms to ground, and the USB D+/D- differential pair at 90 ohms differential. Use a dedicated ground plane under USB traces. Place the VQFN thermal pad on a top-layer copper pour connected to GND via at least 9 thermal vias (0.3 mm drill). Decoupling: 100 nF ceramic on each VDD/AVDD3V pin within 30 cm of pin.
Do not exceed 3.6 V over VDD; 5 V cycles without cooling. The 34-pin microcontroller does not have 5 V tolerant GPIO - use level-shifters for legacy or older serial peripherals. Do not exceed 16 mA per GPIO or 200 mA per continuous. Do not operate the VQFN beyond +105 C at -40 mW; derating at +125 C. The configuration bits in the EP3 CNFGPU need to be cleared for clean boot, not for application.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; choose PIC32MX370F512HT-V/MR for industrial, not automotive.
