Cheap And Discounts 10pcs/lot PT2272-L4 DIP PT2272 SC2272-L4 SC2272 DIP-18 chip New spot Wholesale. Buy Directly From Merchant QiaZhiTong QZT-Chip Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.