8051 Micro-controller interfacing with ADC 0804

how to interfacing 89c51 and ADC0804 if we want to interface any sensor with 8051 we have to use external adc becuase 8051 doesn’t have inbuilt ADC. So we have to use external ADC ADC 0804. ADC0804 is an 8 bit analogue to digital converter from . The features of ADC0804 are differential analogue voltage inputs, 0-5V input voltage range, , built-in clock generator, the reference voltage can be externally adjusted to convert smaller analogue voltage span to 8 bit resolution etc. The pinout diagram of ADC0804 is shown in the figure below circuit diagram of interfacing 8051 and adc 0804 :- https://goo.gl/Bm73YW interface between 8051 and adc 0804 hex file :- https://goo.gl/U9GJwW