Quad 2-Input Multiplexer IC - 74HC157
Quad 2-Input Multiplexer IC - 74HC157 The 74HC Series 74HC157 is a 16-Pin Quad 2-Input Multiplexer IC having 2V to 6V Operating Voltage range with 1uA Low Input current and high noise immunity. It selects 4 bits of data from two sources under the control of a common data select input (S). The enable input (E) is active LOW. When E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all other input conditions. Pinout: Pinout of 74HC157 IC Pin Number Pin Name Description 2,5,11,14 Input A This is the first input line of the 2:1 Multiplexer 3,6,10,13 Input B This is the second input line of the 2:1 Multiplexer 4,7,9,12 Output Y This is the output line pin of the Multiplexer 1 Line Select (S) The select pin selects one of the two input lines and gives it to the output line 15 Enable (E) Active low pin. Grounded for normal operation 8 Ground Connected to the ground of the system 16 Vcc This pin powers the IC, typically +5V is used. Also check 74LS161 Synch 4-Bit Counter . It has an operating voltage range of 4.5V to 5.5V and a temperature range of -55°C to +125°C Also check 74HC151 IC ( 74HC151 - 8-Input Multiplexer IC), used as a Data Selector/Multiplexer with full on-chip decoding to select one of eight data sources based on a unique three-binary code at select inputs
- Expand any data input point
- Multiplex dual data buses
- Generate four functions of two variables (one variable is common)
- Source programmable counters
- Type DIP
- Voltage Rating 2 to 6V
- Current Rating 1µA low input current
- Temperature Rating -55 to 125 Deg C
- Number of pins 16
- Noise Immunity NIL = 30%, NIH = 30% of VCC at VCC = 5V
- Dimensions 7x5x3mm
- Weight 2g