This part is a kind of semiconductor called 74LVC8T245.

Function of this product has 8-bit dual supply translating transceiver.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

74LVC8T245; 74LVCH8T245 8-bit dual supply translating transceiver; 3-state Rev. 3 12 December 2011 Product data sheet 1. General description The 74LVC8T245; 74LVCH8T245 are 8-bit dual supply translating transceivers with 3-state outputs that enable bidirectional level translation. They feature two data input-output ports (pins An and Bn), a direction control input (DIR), an output enable input (OE) and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at any voltage between 1.2 V and 5.5 V making the device suitable for translating between any of the low voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V). Pins An, OE and DIR are referenced to VCC(A) and pins Bn are referenced to VCC(B). A HIGH on DIR allows transmission from An to Bn and a LOW on DI [ ... ]

74LVC8T245 PDF Datasheet Download