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No zero or full scale adjust required
Single up/down control input
The binary sum appears on the sum outputs (S1 to S4) and the out-going carry (COUT) according to the equation:
the contents of the 8 flip-flops are available at the outputs
74HC283 ( 4 Bit Binary Adder) blower No zero or full scaleThe 74HC283 adds two 4 bit binary words (An plus Bn) plus the incoming carry (CIN). The binary sum appears on the sum outputs (S1 to S4) and the out going carry (COUT) according to the equation: CIN + (A1 + B1) + 2(A2 + B2) + 4(A3 + B3) + 8(A4 + B4) = S1 + 2S2 + 4S3 + 8S4 + 16COUT Where (+) = plus. Due to the symmetry of the binary add function, the 74HC283 can be used with either all active HIGH operands (positive logic) or all active LOW operands