Overview
The SN74LS157DRE4 is a high-speed Quad 2-Input Multiplexer produced by Texas Instruments. This component is part of the 74LS series, which is known for its low power Schottky TTL (Transistor-Transistor Logic) technology. The SN74LS157DRE4 allows for the selection of four bits of data from two sources using common Select and Enable inputs, making it a versatile component in digital logic circuits.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC (D) |
| Number of Pins | 16 |
| Operating Temperature Range | 0°C to 70°C |
| RoHS Compliance | Yes |
| Lead Finish/Ball Material | Pb-Free |
| MSL Peak Temp | Level-1-260C-UNLIM |
| Device Marking | LS157 |
| ESD Protection | > 3500 Volts |
Key Features
- Schottky Process for High Speed: The SN74LS157DRE4 is fabricated using the Schottky barrier diode process, which enhances its speed and performance.
- Quad 2-Input Multiplexer: It can select four bits of data from two sources using common Select and Enable inputs.
- Non-Inverting Outputs: The outputs present the selected data in the true (non-inverted) form.
- Input Clamp Diodes: These diodes limit high-speed termination effects, ensuring stable operation.
- Glitch-Free Multiplexing: Special circuitry ensures that the multiplexing process is free from glitches.
- Compatibility: Completely compatible with all Motorola TTL families.
Applications
- Digital Logic Circuits: Ideal for use in various digital logic circuits where data selection and multiplexing are required.
- Communication Systems: Used in communication systems for data routing and selection.
- Computer Systems: Employed in computer systems for managing data paths and selections.
- Industrial Control Systems: Utilized in industrial control systems for signal routing and processing.
Q & A
- What is the SN74LS157DRE4 used for?
The SN74LS157DRE4 is a Quad 2-Input Multiplexer used for selecting four bits of data from two sources using common Select and Enable inputs.
- What is the package type of the SN74LS157DRE4?
The package type is SOIC (D) with 16 pins.
- What is the operating temperature range of the SN74LS157DRE4?
The operating temperature range is 0°C to 70°C.
- Is the SN74LS157DRE4 RoHS compliant?
Yes, the SN74LS157DRE4 is RoHS compliant.
- What is the ESD protection level of the SN74LS157DRE4?
The ESD protection level is greater than 3500 volts.
- What process is used to fabricate the SN74LS157DRE4?
The SN74LS157DRE4 is fabricated using the Schottky barrier diode process.
- Can the SN74LS157DRE4 be used to generate logic functions?
Yes, it can be used to generate any four of the 16 different functions of two variables.
- Is the SN74LS157DRE4 compatible with other TTL families?
Yes, it is completely compatible with all Motorola TTL families.
- What are the key features of the SN74LS157DRE4's outputs?
The outputs are non-inverting and present the selected data in the true form.
- How does the SN74LS157DRE4 handle high-speed termination effects?
Input clamp diodes limit high-speed termination effects, ensuring stable operation.
