This part is a kind of semiconductor called 74194.

Function of this product has 4 BIT PIPO SHIFT REGISTER.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

M54HC194 M74HC194 4 BIT PIPO SHIFT REGISTER . . . . . . . . HIGH SPEED tPD = 12 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE IOH = IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 54/74LS194 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC194F1R M74HC194M1R M74HC194B1R M74HC194C1R DESCRIPTION The M54/74HC194 is a high speed CMOS 4 BIT PIPO 2 SHIFT REGISTER fabricated in silicon gate C MOS technology. It has the same high speed performance of LSTTL combined with true CMOS low power [ ... ]

74194 PDF Datasheet Download