This part is a kind of semiconductor called 74LVQ574T.

Function of this product has OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUTS NON INVERTING.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

® 74LVQ574 OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUTS NON INVERTING s s s s s s s s s s s HIGH SPEED: fMAX = 180 MHz (TYP.) at VCC = 3.3V COMPATIBLE WITH TTL OUTPUTS LOW POWER DISSIPATION: ICC = 4 µA (MAX.) at TA = 25 oC LOW NOISE: VOLP = 0.5 V (TYP.) at VCC = 3.3V 75Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 12 mA (MIN) PCI BUS LEVELS GUARANTEED AT 24 mA BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 3.6V (1.2V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 574 IMPROVED LATCH-UP IMMUNITY M (Micro Package) T (TSSOP Package) ORDER CODES : 74LVQ574M 74LVQ574T On the positive transition of the clock, the Q outputs will be set to logic state that were setup at the D inputs. While the ( [ ... ]

74LVQ574T PDF Datasheet Download