This part is a kind of semiconductor called 74ABT16373.

Function of this product has 16-Bit Transparent D-Type Latch with 3-STATE Outputs.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

74ABT16373 16-Bit Transparent D-Type Latch with 3-STATE Outputs March 1994 Revised November 1999 74ABT16373 16-Bit Transparent D-Type Latch with 3-STATE Outputs General Description The ABT16373 contains sixteen non-inverting latches with 3-STATE outputs and is intended for bus oriented applications. The device is byte controlled. The flip-flops appear transparent to the data when the Latch Enable (LE) is HIGH. When LE is LOW, the data that meets the setup time is latched. Data appears on the bus when the Output Enable (OE) is LOW. When OE is HIGH, the outputs are in high Z state. Features s Separate control logic for each byte s 16-bit version of the ABT373 s High impedance glitch free bus loading during entire power up and power down cycle s Non-destructive hot insertion capability s G [ ... ]

74ABT16373 PDF Datasheet Download