Overview
The Texas Instruments SN74ALS138ANSR is a 3-line to 8-line decoder/demultiplexer designed for high-performance memory-decoding or data-routing applications. These devices are optimized for very short propagation delay times, making them ideal for use in high-speed systems. When used with high-speed memories that have fast enable circuits, the delay times of the decoder and the enable time of the memory are typically less than the access time of the memory, thereby minimizing system decoding delays.
Key Specifications
| Circuit | 1 x 3:8 |
|---|---|
| Current | 400µA, 8mA |
| Independent Circuits | 1 |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C ~ 70°C |
| Package | 16-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 16-SO |
| Type | Decoder/Demultiplexer |
| Voltage Supply Source | Single Supply |
| Voltage | 4.5V ~ 5.5V |
Key Features
- Designed for high-performance memory decoding or data-routing applications requiring very short propagation delay times.
- Supplied in the 16-SOIC (0.209", 5.30mm Width) package.
- Single supply operation with a voltage range of 4.5V to 5.5V.
- Surface mount type for easy integration into modern circuit designs.
- Schottky-clamped for high performance and to suppress line-ringing, simplifying system design.
- Three enable inputs to simplify cascading and/or data reception.
Applications
- Transmission from the computer system of a satellite
- Time division multiplexing system
- Frequency multiplexing system
- A/D converters
- D/A converters
- Implementing boolean functions with multiple variables
- Data collection system
- Audio transmission
- Video transmission
- Image transmission
Q & A
- What is the primary function of the SN74ALS138ANSR?
The SN74ALS138ANSR is a 3-line to 8-line decoder/demultiplexer designed for high-performance memory-decoding or data-routing applications.
- What is the operating temperature range of the SN74ALS138ANSR?
The operating temperature range is from 0°C to 70°C.
- What type of package does the SN74ALS138ANSR come in?
The device is supplied in a 16-SOIC (0.209", 5.30mm Width) package.
- What is the voltage supply range for the SN74ALS138ANSR?
The voltage supply range is from 4.5V to 5.5V.
- What are the key features of the SN74ALS138ANSR?
Key features include Schottky-clamped design, three enable inputs, and surface mount type.
- What are some common applications of the SN74ALS138ANSR?
Common applications include transmission systems, multiplexing systems, A/D and D/A converters, and data collection systems.
- How does the SN74ALS138ANSR minimize system decoding delays?
The device minimizes system decoding delays by having very short propagation delay times, which are typically less than the access time of the memory when used with high-speed memories.
- What is the significance of the Schottky-clamped design in the SN74ALS138ANSR?
The Schottky-clamped design suppresses line-ringing and simplifies system design, enhancing overall performance.
- Can the SN74ALS138ANSR be used in cascading applications?
- Is the SN74ALS138ANSR suitable for high-speed memory systems?
