TC74HC283AF

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 ADDER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. Sum (Σ) 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. Features High speed: tpd = 17 ns (typ.) at VCC = 5 V Low power dissipation: ICC = 4 μA (max) at Ta = 25°C High noise immunity: VNIH = VNIL = 28% VCC (min) Output drive capability: 10 LSTTL loads Symmetrical output impedance: |IOH| = IOL = 4 mA (min) Balanced propagation delays: tpLH ∼− tpHL Wide operating voltage range: VCC (opr) = 2 to 6 V Pin and function compatible with 74LS283 Pin Assignment TC74HC283AP TC74HC283AF Weight DIP16-P-300-2.54A SOP16-P-300-1.27A : 1.00 g (typ.) : 0.18 g (typ.) Start of commercial production 1986-11 1 2014-03-01 IEC Logic Symbol Block Diagram TC74HC283AP/AF Truth Table (1 bit) Inputs Bn An Cn − 1 L L L L L H L H L L H H H L L H L H H H L H H H Outputs Σn Cn L L H L H L L H H L L H...