PIC32MK0256GPG064-E/R4X
PIC32MK0256GPG064-E/R4X - 120MHz MCU 256KB Flash 64VQFN | Microchip
The Microchip Technology PIC32MK0256GPG064-E/R4X is a 32-bit MIPS32 microAptiv PIC microcontroller operating at up to 120 MHz with 256 KB ECC-protected Flash and 64 KB SRAM, housed in a 64-pin VQFN (9x9 mm) package with 53 I/O. It operates from 2.3V to 3.6V across the industrial -40C to +125C temperature range and integrates a 12-bit ADC, 12-bit DAC, CAN-FD-capable peripherals, motor-control PWM, and rich connectivity for general-purpose and motion-control designs.
A 32-bit microcontroller (MCU) is an integrated circuit combining a high-performance processor core, on-chip non-volatile program memory (Flash), volatile working memory (SRAM), and configurable peripherals on a single silicon die. MCUs form the compute tier between fixed-function ASICs and full microprocessors, executing embedded firmware for deterministic real-time tasks. Within the PIC32 family hierarchy, the microAptiv core delivers up to 1.53 DMIPS/MHz, and the GPG variant targets cost-optimized general-purpose applications as opposed to the motor-control MCJ/GPL subfamilies.
Key differentiating features include 256 KB Flash with ECC and 64 KB SRAM with parity, 120 MHz maximum CPU clock (80 MHz on this specific GPG SKU), four I2C+SDA buses, two SPI/I2S interfaces, two UART modules, USB-FS device/host/OTG, a 12-bit 1.25 Msps ADC with up to 28 channels, and motor-control PWM capable of driving three-phase inverters. The ECC-protected Flash increases reliability in safety-conscious and outdoor-deployed systems where single-bit errors would otherwise escape detection. Hardware math accelerators (CPU with DSP-like instructions, FPU-ready on adjacent SKUs) ease real-time filter and control-loop workloads.
The PIC32MK0256GPG064 silicon integrates a rich peripheral set: multiple general-purpose timers, a hardware crypto engine on selected variants, comparators, a charge-time-measurement unit (CTMU), and a real-time clock-calendar with backup registers. The 64-VQFN (9x9 mm) package includes an exposed pad that must be soldered to the ground plane for thermal dissipation and low-impedance return, supporting operation at the full industrial +125C junction temperature.
Typical applications include motor control (BLDC/PMSM FOC drives), industrial IoT edge nodes, digital power conversion, building automation, multi-channel sensor fusion, and CAN-FD network nodes in vehicles and machinery. The combination of high CPU throughput, dual ADC capability, and CAN-FD positions this MCU as a versatile platform for both deterministic control loops and connected-device protocols.
When designing with this MCU, allocate the ECC-protected Flash region for critical code, use the exposed pad of the VQFN-64 as the primary thermal path, and verify that 3.3V rails hold within ±5% under CPU peak load to avoid ADC reference drift. Use MPLAB X IDE with the XC32 compiler for firmware development.
This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes drawn from the Microchip PIC32MK GPG/MCJ family datasheet - information not aggregated on any single distributor product page.
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