Cheap And Discounts 1pcs/Lot SAK-TC1728N-192F133HR LQFP-176 32-bit Microcontrollers - MCU TC1728N192F133HRACKXUMA2 Wholesale. Buy Directly From Merchant CJXY221012 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.