This part is a kind of semiconductor called ADC0809CCN.

Function of this product has P Compatible 8-Bit A/D Converter with 8-Channel Multiplexer.

Manufacturers : Micro Linear Corporation

Image and pinout :

Some of the text within the PDF file :

May 1997 ML2258* µP Compatible 8-Bit A/D Converter with 8-Channel Multiplexer GENERAL DESCRIPTION The ML2258 combines an 8-bit A/D converter, 8-channel analog multiplexer, and a microprocessor compatible 8bit parallel interface and control logic in a single monolithic device. Easy interface to microprocessors is provided by the latched and decoded multiplexer address inputs and latched three-state outputs. The device is suitable for a wide range of applications from process and machine control to consumer, automotive, and telecommunication applications. The ML2258 is an enhanced, pin-compatible, second source for the industry standard ADC0808/ADC0809. The ML2258 enhancements are faster conversion time, true sample and hold function, superior power supply rejection, wider reference range, [ ... ]

ADC0809CCN PDF Datasheet Download