NXP USA Inc. 64-LQFP MK22FX512AVLH12R

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The part number MK22FX512AVLH12R refers to a 512Kb (64K x 8) non-volatile Flash memory device, specifically a Freescale Semiconductor Kinetis K22 microcontroller. This component features low power consumption, a 120 MHz ARM Cortex-M4 core with hardware floating-point unit, and rich peripheral set including UARTs, I2C, SPI, and GPIOs. It comes in an LQFP package suitable for high-density surface mount applications, and the 'H12' signifies a specific temperature range and/or packaging variant.