This part is a kind of semiconductor called FP2800A.

Function of this product has Decoder Driver.

Manufacturers : AZ

Image and pinout :

Some of the text within the PDF file :

F-P ELECTRONICS The FP2800A Decoder Driver Is a 40 pin integrated circuit which provides the decoding to select one of 28 high current driver outputs for sinking and sourcing current. A complementary driver is available for bridge output applicatlons. The CMOS compatible FP2800A DecoderDriver data inputsare groupedto allow one of four 7-segment displays to be add ressed.A DATApin sets the output to source or sink moda and the output is activated for the duration ot an ENABLE signal. RECOM-ED OPERATING CONOmOI³S ... L81ic""""""" v.. I'owel 18"" "Ita.., V. , 4.5 CIIn8I, L . Operatesup to 27.3 volts D.C. FEATURES: Source and sink IICIRIIAL 5 IIAI U U³ITI V 2t 17.5 V . . up to 370 mA 0,..11IIII"'" rIIII'" DIIIy ... I³ III.clrcalt, I' IG"C ,I' ZI'C lI!IItdIIIII frI..-cy ABIOWT [ ... ]

FP2800A PDF Datasheet Download