TC74HC283AF(F)

TC74HC283AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC283AP, TC74HC283AF 4-Bit Binary Full Adder The TC74HC283A is a high speed CMOS 4-BIT BINARY FULL 2 TC74HC283AP ADDER fabricated with silicon gate C MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. Sum ( ) outputs are provided for each bit and a resultant carry (C4) is obtained from the fourth bit. This adder features full internal look-ahead across all four bits. A4 n bit binary adder is easily built up by cascading the HC283A without any additional logic. All inputs are equipped with protection circuits against static discharge or transient excess voltage. TC74HC283AF Features High speed: t = 17 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: 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 74LS283 DIP16-P-300-2.54A : 1.00 g (typ.) SOP16-P-300-1.27A : 0.18 g (typ.) Pin Assignment Start of commercial production 1986-11 1 2014-03-01 TC74HC283AP/AF IEC Logic Symbol Block Diagram Truth Table (1 bit) Inputs Outputs Bn An Cn 1 n Cn L L L L L L L H H L L H L H L L H H L H H L L H L H L H L H H H L L H H H H H H 2 2014-03-01