74HC153 ( Dual 4-input Multiplexer) 74HC30 Mounting Hole: 6 mm

Mounting Hole: 6 mm

The ethernet shield connects to an Arduino board using long wire-wrap headers which extend through the shield

each slot is made of a special material that is sensitive to IR

Real-time clock (RTC) counts seconds

Interface: I2C

74HC153 ( Dual 4-input Multiplexer) 74HC30 Mounting Hole: 6 mmIntroduction : 74HC153 is a dual 4 input multiplexer. The device features independent enableinputs (nE) and common data select inputs (S0 and S1). For each multiplexer, the select inputsselect one of the four binary inputs and routes it to the multiplexer output (nY). A HIGH on E forcesthe corresponding multiplexer outputs LOW. Inputs include clamp diodes. This enables the use ofcurrent limiting resistors to interface inputs to voltages in excess of