TC74HCT273AF(EL,F) Toshiba

TC74HCT273AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HCT273AP, TC74HCT273AF Octal D-Type Flip Flop with Clear The TC74HCT273A is a high speed CMOS OCTAL D-TYPE 2 TC74HCT273AP FLIP FLOP fabricated with silicon gate C MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. Their inputs are compatible with TTL, NMOS, and CMOS output voltage levels. Information signals applied to D inputs are transferred to the Q outputs on the positive going edge of the clock pulse. When the CLR input is held L, the Q outputs are at a low logic level independent of the other inputs. All inputs are equipped with protection circuits against static TC74HCT273AF discharge or transient excess voltage. Features High speed: f = 90 MHz (typ.) at V = 5 V max CC Low power dissipation: I = 4 A (max) at Ta = 25C CC Compatible with TTL outputs: V = 2.0 V (min) IH V = 0.8 V (max) IL Wide interfacing ability: LSTTL, NMOS, CMOS Weight Output drive capability: 10 LSTTL loads DIP20-P-300-2.54A : 1.30 g (typ.) Symmetrical output impedance: I = I = 4 mA (min) OH OL SOP20-P-300-1.27A : 0.22 g (typ.) Balanced propagation delays: t t pLH pHL Pin and function compatible with 74LS273 Pin Assignment Start of commercial production 1989-05 1 2014-03-01 TC74HCT273AP/AF IEC Logic Symbol Truth Table Inputs Output Function CLR D CK Q L X X L Clear H L L H H H H X Qn No Change X: Dont care System Diagram 2 2014-03-01