Hitachi HD74HC283
The sun ( ) outputs are provided for each bit and the resultant carry (C4) is obtained from the fourth bit. This adder features full internal look ahead across all four bits.| Part No. | HD74HC283 |
|---|---|
| Datasheet | HD74HC283 Download |
| Manufacturer |  Hitachi |
| Description | 4-bit Binary Full Adder |
| Buy | Stock & Price |
DESCRIPTION
This provides the system designer with partial look-ahead performance at the economy and reduced package count of a ripple-carry implementation. The adder logic, including the carry, is implemented in its true for meaning that the endaround carry can be accomplished without the need for logic or level inversion.FEATURES
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● High Speed Operation: tpd = 19 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) HD74HC283 Function Table Outputs Inputs A1/A3 L H L H L H L H L H L H L H L H B1/B3 L L H H L L H H L L H H L L H H A2/A4 L L L L H H H H L L L L H H H H B2/B4 L L L L L L L L H H H H H H H H When C0 = L/When C2 = L ∑1/∑3 L H H L L H H L L H H L L H H L ∑2/∑4 L L L H H H H L H H H L L L L H C2/C4 L L L L L L L H L L L H H H H H When C0 = H/When C2 = H ∑1/∑3 H L L H H L L H H L L H H L L H ∑1/∑4 L H H H H L L L H L L L L H...
