Content for 74HC153


The 74HC153; 74HCT153 is a dual 4-input multiplexer. The device features independent enable inputs (nE) and common data select inputs (S0 and S1). For each multiplexer, the select inputs select one of the four binary inputs and routes it to the multiplexer output (nY). A HIGH on E forces the corresponding multiplexer outputs LOW. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

4 bit TTL ALU

“Alternative for the 74LS181 ALU, built in One Square Inch An ALU was designed with only 7 IC’s. Its functions are ADD, SUB, XOR, XNOR, AND, OR, A, B, NOT A. It has a fast carry output. It can …