This part is a kind of semiconductor called ICM7216D.

Function of this product has (ICM7216x) 8-Digit / Multi-Function / Frequency Counters/Timers.

Manufacturers : Intersil Corporation

Image and pinout :

Some of the text within the PDF file :

ICM7216A, ICM7216B, ICM7216D August 1997 8-Digit, Multi-Function, Frequency Counters/Timers Description The ICM7216A and ICM7216B are fully integrated Timer Counters with LED display drivers. They combine a high frequency oscillator, a decade timebase counter, an 8-decade data counter and latches, a 7-segment decoder, digit multiplexers and 8-segment and 8-digit drivers which directly drive large multiplexed LED displays. The counter inputs have a maximum frequency of 10MHz in frequency and unit counter modes and 2MHz in the other modes. Both inputs are digital inputs. In many applications, amplification and level shifting will be required to obtain proper digital signals for these inputs. The ICM7216A and ICM7216B can function as a frequency counter, period counter, frequency ratio (fA [ ... ]

ICM7216D PDF Datasheet Download