The 74LS258 Multiplexer IC is designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The IC is designed to operate over a temperature range of 0 to 70°C. The output of the IC always comes in TTL which makes it easy to work with other TTL devices and microcontrollers. The IC also constitutes a wide array of features such as thermal overload protection & ESD protection. The IC 74LS258 is smaller in size and it has a much faster speed which makes it reliable in every kind of device.
What is a Multiplexer/Data selector?
A multiplexer/data selector is a digital combinational logic circuit that toggles one of several input lines to a single common output line. The select lines determine which input is connected to the output, and also to increase the amount of data that can be sent over a network within a certain time. It is also called a data selector.
74LS258 Key Features & Specifications
- Technology Family: LS
- Function: Encoder, Multiplexer
- Configuration: 2:1
- Channels (#): 4
- VCC (Min) (V): 4.75
- VCC (Max) (V): 5.25
- Input type: TTL
- Output type: TTL
- Inverting 3-State Outputs
- Standard TTL Switching Voltages
74LS258 Pinout
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | S | Select Input Pin |
| 2 | I0a | Mux A Input pin 0 |
| 3 | I1a | Mux A Input pin 1 |
| 4 | Za’ | Multiplexer complementary Output A |
| 5 | I0b | Mux B Input pin 0 |
| 6 | I1b | Mux B Input pin 1 |
| 7 | Zb’ | Multiplexer complementary Output B |
| 8 | GND | Ground Pin |
| 9 | Zd’ | Multiplexer complementary Output D |
| 10 | I1d | Mux D Input pin 1 |
| 11 | I0d | Mux D Input pin 0 |
| 12 | Zc’ | Multiplexer complementary Output C |
| 13 | I1c | Mux C Input pin 1 |
| 14 | I0c | Mux C Input pin 0 |
| 15 | OE’ | Output Enable |
| 16 | Vcc | Chip Supply Voltage |
Applications
- They route signals according to an input address.
- They can be used to pass on only signals of interest
74LS258 Datasheet
You can download the datasheet for 74LS258 Quad 2:1 Data Selectors/Multiplexers IC from the link given below:
See Also: 74LS132 Quad 2-Input Schmitt trigger NAND Gate IC – Datasheet | 74LS91 8-Bit Shift Storage Register IC – Datasheet | 74LS74 D-Type Positive Edge Triggered Flip-Flop IC – Datasheet
2 thoughts on “74LS258 Quad 2 To 1 Data Selectors/Multiplexers IC With 3-State Outputs”
Comments are closed.