This part is a kind of semiconductor called HC193.

Function of this product has Synchronous Binary Up/down Counter.

Manufacturers : ST Microelectronics

Image and pinout :

Some of the text within the PDF file :

M54/M74HC192 M54/M74HC193 HC192 - SYNCHRONOUS UP/DOWN DECADE COUNTER HC193 - SYNCHRONOUS UP/DOWN BINARY COUNTER HIGH SPEED fMAX = 54 MHz (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 54/74LS192-193 DESCRIPTION The M54/74HC192/193 are ahigh speed CMOSSYNCHRONOUS UP/DOWN DECADE COUNTERS fabricated in silicon gate C2MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low power consumption. The counter has two separate clock inputs, an UP COU [ ... ]

HC193 PDF Datasheet Download