TC74HC273AF(EL,F)

TC74HC273AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC273AP, TC74HC273AF Octal D-Type Flip Flop with Clear The TC74HC273A is a high speed CMOS OCTAL D-TYPE 2 TC74HC273AP 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. 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 discharge or transient excess voltage. TC74HC273AF Features High speed: f = 67 MHz (typ.) at V = 5 V max CC Low power dissipation: I = 4 A (max) at Ta = 25C CC High noise immunity: V = V = 28% V (min) NIH NIL CC Output drive capability: 10 LSTTL loads Symmetrical output impedance: I = I = 4 mA (min) OH OL Balanced propagation delays: t t pLH pHL Wide operating voltage range: V (opr) = 2 to 6 V CC Weight Pin and function compatible with 74LS273 DIP20-P-300-2.54A : 1.30 g (typ.) SOP20-P-300-1.27A : 0.22 g (typ.) Pin Assignment Start of commercial production 1986-05 1 2014-03-01 TC74HC273AP/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