8-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs The SN74LS251NSR is a 8-input multiplexer manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Part Number:** SN74LS251NSR
- **Technology Family:** LS (Low-Power Schottky)
- **Type:** 8-Input Multiplexer
- **Number of Channels:** 1
- **Number of Inputs:** 8
- **Supply Voltage Range:** 4.75V to 5.25V
- **Operating Temperature Range:** 0°C to 70°C
- **Package / Case:** SOIC-16
- **Logic Type:** TTL (Transistor-Transistor Logic)
- **Output Type:** Tri-State
- **Propagation Delay Time:** 15ns (typical)
- **Current - Output High, Low:** 2.6mA, 24mA
- **Mounting Type:** Surface Mount
### **Descriptions:**
The SN74LS251NSR is a high-speed 8-input digital multiplexer with tri-state outputs. It selects one of eight data inputs (D0-D7) based on the three select lines (A, B, C) and routes it to the output (Y). The output can be enabled or disabled using the active-low Output Enable (OE) pin, allowing for bus-oriented applications.
### **Features:**
- **8-to-1 Data Selector/Multiplexer**
- **Tri-State Outputs for Bus Driving**
- **Low Power Consumption (LS Technology)**
- **Wide Operating Voltage Range (4.75V to 5.25V)**
- **TTL-Compatible Inputs and Outputs**
- **High Noise Immunity**
- **Fast Switching Speed (15ns typical propagation delay)**
- **Available in SOIC-16 Package**
This information is strictly based on the manufacturer's datasheet and technical specifications.
