Description

The SN54/74LS85 is a 4-bit Magnitude Camparator that compares two 4-bit words (A, B), each word having four Parallel Inputs (A0??A3, B0??B3); A3, B3 being the most significant inputs. Operation is not restricted to binary codes, the device will work with any monotonic code. Three Outputs are provided: ??A greater than B?? (OA>B), ??A less than B?? (OAB, IAB = L, IA=B = H. For serial (ripple) expansion, the OA>B, OAB, IAB, OA