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Description
These Schottky-clamped circuits are designed to be used in high-performance memory-decoding or data-routing applications, requiring very short propagation delay times. In high-performance memory systems these decoders can be used to minimize the effects of system decoding. When used with high-speed memories, the delay times of these decoders are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible.
Specifications and features
1. Designed specifically for high speed: Memory decoders, Data transmission systems
2. DM74LS138 3-to-8-line decoders incorporates 3 enable inputs to simplify cascading and/or data reception
3. DM74LS139 contains two fully independent 2-to-4-line decoders/demultiplexers
4. Schottky clamped for high performance
5. Typical propagation delay (3 levels of logic): DM74LS138 - 21 ns, DM74LS139 - 21 ns
6. Typical power dissipation: DM74LS138 - 32 mW, DM74LS139 - 34 mWApplication Scenarios
These Schottky-clamped circuits are commonly used in high-performance memory systems and data transmission systems. They are particularly effective in minimizing the effects of system decoding and can be used with high-speed memories.
Comparison
Advantages- Very short propagation delay times
- Can minimize the effects of system decoding
- Compatible with high-speed memoriesDisadvantages- None identified
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Datasheet
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Popular parts of the same kind
- Datasheet: Download DM74LS139SJ
- Chipdatas Part: CD94-DM74LS139SJ
- Warehouse: China, Hong Kong
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- Last Updated: 2024/06/03 14:28 +0800
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