PIC32MX370F512LT-I/PT - 80MHz 512KB Flash MCU | Microchip
MPN: PIC32MX370F512LT-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.3 | $9.30 |
| 10 | $8.55 | $85.50 |
| 100 | $7.3 | $730.00 |
| 500 | $6.45 | $3,225.00 |
| 1,000 | $5.75 | $5,750.00 |
PIC32MX370F512LT-I/PT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. The PIC32MX3/4 family belongs to the MIPS32 M4K RISC architecture, sitting in the 32-bit MCU category between 8-bit AVR/PIC and higher-end ARM Cortex-M devices, and is widely used in cost-sensitive HMI, USB, and audio/graphics embedded designs. As a general-purpose MCU family, PIC32MX devices combine deterministic interrupt response, a rich peripheral set, and a mature MPLAB X toolchain.
Key features of the PIC32MX370F512LT-I/PT include up to 28 analog channels via a 10-bit 1 Msps ADC, two analog comparators, two I2C and two SPI/I2S ports, five 16-bit timers/counters, and full-speed USB 2.0 device/host/OTG. The device operates from 2.3V to 3.6V, supports up to five PWM channels with input capture, and provides 85 I/O pins with 5V-tolerant inputs. The 100-pin TQFP (PT) package enables dense integration while still allowing easy hand-prototyping and rework.
The PIC32MX370 architecture pairs a 5-stage pipelined MIPS32 M4K core with single-cycle multiplication and hardware divide, yielding 1.56 DMIPS/MHz. The integrated USB 2.0 Full-Speed controller, parallel master port (PMP) for graphics, and up to six UART modules make this family a strong fit for human-machine interface (HMI) designs that combine a color LCD, USB connectivity, and multiple serial sensors.
Typical applications include low-cost HMI touch panels, USB audio peripherals, embedded data loggers, point-of-sale (POS) terminals, and motor control front-ends. The wide peripheral mix also fits barcode scanners, thermostat controllers, and consumer white-goods mainboards.
When designing with this MCU, allocate careful consideration to decoupling: place 0.1 uF ceramics adjacent to every VDD/VSS pair and a single 10 uF bulk capacitor near the regulator. The internal 8 MHz fast RC oscillator with PLL can produce the 80 MHz system clock, but for USB applications an external 48 MHz crystal or the internal 96 MHz PLL divided down is recommended to meet USB jitter specifications.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical PCB design notes not found in the manufacturer datasheet alone, helping engineers evaluate second sources and accelerate board bring-up.
Drop-in alternatives for PIC32MX370F512LT-I/PT — 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 PIC32MX370F512LT-I/PT (same form factor and footprint) — differing in Package, ADC, I/O Pins, Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX370F512L-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX370F512LT-I/PF
✅ Drop-In✓ In Stock
$4.55 / Unit
View Datasheet →PIC32MX170F512LT-I/PT
✅ Drop-In✓ In Stock
$6.4 / Unit
View Datasheet →PIC32MX270F512LT-I/PT
✅ Drop-In✓ In Stock
$4.42 / Unit
View Datasheet →PIC32MX370F512HT-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX370F512HT-V/PT
✅ Drop-In✓ In Stock
$5.65 / Unit
View Datasheet →PIC32MX370F512LT-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Speed | 80 MHz (100 DMIPS) |
| Program Flash | 512 KB (512K x 8) |
| Data SRAM | 128 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| ADC | 10-bit, up to 1 Msps, 28 channels |
| Analog Comparators | 2 |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| I2C Modules | 2 |
| SPI / I2S Modules | 2 |
| UART Modules | 6 |
| 16-bit Timers | 5 |
| I/O Pins | 85 |
| Parallel Master Port (PMP) | Yes (for graphics/External Bus) |
| Package | 100-pin TQFP (PT), 12 x 12 mm |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount, Tape & Reel |
| RoHS Status | Compliant |
PIC32MX370F512LT-I/PT 100-pin tqfp (pt), 12 x 12 mm Pin Configuration Guide
Pin configuration for PIC32MX370F512LT-I/PT (100-pin tqfp (pt), 12 x 12 mm 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 PIC32MX370F512LT-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX370F512LT-I/PT is suitable for 6 applications: Human-Machine Interface (HMI) Touch Panels, USB Audio Peripherals (USB Speakers / Headsets), Industrial Data Loggers and Sensor Hubs, Point-of-Sale (POS) Terminals and Kiosks, Motor Control and BLDC/PMSM Front-Ends, Embedded Internet-of-Things Gateways (USB Bridge).
Human-Machine Interface (HMI) Touch Panels
The PIC32MX370F512LT-I/PT is a strong fit for HMI touch panels because it integrates a Parallel Master Port (PMP) for driving color TFT LCDs directly, 28 ADC channels for resistive touch sensing, and 128 KB of SRAM for graphics frame buffers. With 80 MHz/100 DMIPS, the MIPS M4K core renders menu screens, buttons, and animations with sub-100 ns interrupt latency. The device also supports USB 2.0 Full-Speed OTG for PC data exchange and firmware updates, eliminating the need for an external MCU bridge.
Recommended
USB Audio Peripherals (USB Speakers / Headsets)
The PIC32MX370F512LT-I/PT's integrated USB 2.0 Full-Speed OTG controller with on-chip transceiver makes it a single-chip solution for USB audio peripherals such as USB speakers, headphones, and DAC dongles. The two I2S ports interface directly to external 24-bit audio codecs for 48 kHz/96 kHz sample rates, while 128 KB of SRAM buffers audio packets without DMA overruns. The 10-bit ADC enables push-button and volume-wheel scanning without extra glue logic, and the MPLAB Harmony USB Audio class driver is ready-to-use.
Recommended
Industrial Data Loggers and Sensor Hubs
The PIC32MX370F512LT-I/PT is well suited for multi-channel industrial data loggers thanks to its 28-channel 10-bit ADC at 1 Msps, six UART modules for RS-232/RS-485 sensor aggregation, and 512 KB Flash for storing telemetry logs. Two I2C and two SPI buses connect to external digital sensors, EEPROM, and RTC chips. The industrial temperature range -40C to +85C and integrated USB simplify field deployment with rugged enclosures and PC-based configuration tools.
Recommended
Point-of-Sale (POS) Terminals and Kiosks
The PIC32MX370F512LT-I/PT powers cost-sensitive POS terminals and kiosks by combining USB device mode (for PC connection), multiple UARTs (for barcode scanners, receipt printers), and I2C (for NFC readers, secure keypads). The 85 I/O pins directly drive key matrices, LEDs, and 7-segment displays, while the parallel master port interfaces to character or graphic LCDs. Industrial temperature grade and ample Flash enable long product lifecycles in unattended retail environments.
Recommended
Motor Control and BLDC/PMSM Front-Ends
The PIC32MX370F512LT-I/PT serves as a motor control front-end MCU with its five 16-bit timers for PWM generation, two analog comparators for back-EMF zero-cross detection, and 28 ADC channels for phase current sensing. Up to five PWM channels with input capture handle up to 6-step or FOC commutation at low motor speeds. The 100-pin TQFP (12x12 mm) package offers generous GPIO for opto-isolated gate drivers and encoder inputs in BLDC and PMSM drive designs.
Recommended
Embedded Internet-of-Things Gateways (USB Bridge)
As a USB-to-UART/I2C/SPI bridge, the PIC32MX370F512LT-I/PT connects Wi-Fi or BLE modules (e.g. RN4678) to PC or tablet hosts over USB Full-Speed. The 80 MHz MIPS M4K core handles protocol translation without bottlenecks, and the large Flash supports manufacturer-specific command sets. Industrial temperature and USB bus-powered operation simplify field installations in IoT edge nodes.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX370F512LT-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX370F512L-I/PT | PIC32MX170F512LT-I/PT | PIC32MX270F512LT-I/PT | PIC32MX370F512HT-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PT), 12x12 mm | TQFP-100 (PT), 12x12 mm - same | TQFP-100 (PT), 12x12 mm - same | TQFP-100 (PT), 12x12 mm - same | TQFP-100 (PT), 12x12 mm - same |
| Core | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Maximum CPU Speed | 80 MHz (100 DMIPS) | 80 MHz | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 80 MHz |
| Flash / SRAM | 512 KB / 128 KB | 512 KB / 128 KB | 512 KB / 128 KB | 512 KB / 128 KB | 512 KB / 128 KB |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS Device/Host | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +105 C |
| Approximate Unit Price (qty 100) | $7.30 USD | $7.30 USD (same die, tray) | $6.20 USD | $6.50 USD | $7.80 USD |
Key Differentiators
- Highest performance in PIC32MX3xx/4xx family at 80 MHz/100 DMIPS (vs PIC32MX270F512LT-I/PT)
- True USB 2.0 OTG with integrated PHY (vs PIC32MX170F512LT-I/PT)
- Industrial temperature grade standard, not specialty (vs PIC32MX370F512HT-I/PT)
Design Notes
Place one 0.1 uF ceramic capacitor adjacent to every VDD/VSS pair on the PIC32MX370F512LT-I/PT and a single 10 uF bulk tantalum or ceramic capacitor near the 3.3V regulator. The internal 1.8V core LDO requires a separate 10 uF low-ESR capacitor on the VCAP/VDDCORE pin. Avoid long traces between VDD and decoupling to prevent core voltage droop at 80 MHz.
The 100-pin TQFP (PT, 12x12 mm) has 0.5 mm lead pitch. Use 0.25 mm/8 mil traces between pads and 0.25 mm via-in-pad with 0.5 mm pad size if escape routing is tight. Maintain a continuous ground plane beneath the IC for thermal dissipation; the 80 MHz MIPS core can dissipate up to 0.5 W at full CPU utilization. Five 6-mil thermal vias under the exposed pad region reduce thermal resistance to ambient.
For USB Full-Speed operation, the PIC32MX370 requires a 48 MHz clock with +/- 0.25% accuracy to meet USB jitter specifications. Using the internal 8 MHz RC with PLL alone may exceed USB jitter under temperature drift; use an external 48 MHz crystal with appropriate load capacitors (typically 12-22 pF) for reliable USB. Also configure the JTAGEN fuse bit to disable JTAG in production if unused, to free up RA0-RA3 as GPIO.
Compliance Information
RoHS and REACH compliant per Microchip environmental compliance statement. Lead-free matte-tin plating. Halogen-free. Not AEC-Q100 qualified; the 'V' (PIC32MX370F512HT-V/PT) variant may be considered for automotive but is not officially qualified unless documented on the Microchip product page.