This part is a kind of semiconductor called 74573.

Function of this product has Octal D Latch.

Manufacturers : national

Image and pinout :

Some of the text within the PDF file :

DM74LS573 Octal D Latch with TRI-STATE Outputs June 1992 DM74LS573 Octal D Latch with TRI-STATE Outputs General Description The ’LS573 is a high speed octal latch with buffered common Latch Enable (LE) and buffered common Output Enable (OE) inputs This device is functionally identical to the ’LS373 but has different pinouts For truth tables discussion of operations and AC and DC specifications please refer to the ’LS373 data sheet Features Y Y Y Y Y Inputs and outputs on opposite sides of package allowing easy interface with microprocessors Useful as input or output port for microprocessors Functionally identical to ’LS373 Input clamp diodes limit high speed termination effects Fully TTL and CMOS compatible Connection Diagram Dual-In-Line Package Logic Sym [ ... ]

74573 PDF Datasheet Download