TC74HC373AF(F) Toshiba

TC74HC373AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC373AP, TC74HC373AF Octal D-Type Latch with 3-State Output The TC74HC373A is a high speed CMOS OCTAL LATCH with 2 TC74HC373AP 3-STATE OUTPUT fabricated with silicon gate C MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. These 8-bit D-type latches are controlled by a latch enable input (LE) and an output enable input ( OE ). When the OE input is high, the eight outputs are in a high impedance state. All inputs are equipped with protection circuits against static discharge or transient excess voltage. TC74HC373AF Features High speed: t = 11 ns (typ.) at V = 5 V pd 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: 15 LSTTL loads Symmetrical output impedance: I = I = 6 mA (min) OH OL Balanced propagation delays: t t pLH pHL Weight Wide operating voltage range: V (opr) = 2 to 6 V CC DIP20-P-300-2.54A : 1.30 g (typ.) SOP20-P-300-1.27A : 0.22 g (typ.) Pin and function compatible with 74LS373 Pin Assignment Start of commercial production 1986-05 1 2014-03-01 TC74HC373AP/AF IEC Logic Symbol Truth Table Inputs Output OE LE D Q H X X Z L L X Q n L H L L L H H H X: Dont care Z: High impedance Q : Q outputs are latched at the time when the LE input is taken to a low logic level. n System Diagram 2 2014-03-01