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74LS138 Schottky-Clamped Circuits
High-performance memory-decoding or data-routing applications with minimal delay times.
- Supply Voltage: 4.75 - 5.25V
- LOW Level Input Voltage: 0.8V
- HIGH Level Output Current: -0.4mA
- LOW Level Output Current: 8mA
- Free Air Operating Temperature: 70°C
- Package Includes: 1 X 74LS138 IC - (SMD Package) 1-to-8 Decoder/Demultiplexer IC (74138 IC)
Key Features:
- Designed for high-performance memory systems
- Minimizes system decoding effects
- Short propagation delay times
- Can be used with high-speed memories
The 74LS138 decodes one-of-eight lines based on conditions at the three binary select inputs and three enable inputs. It features two active-low and one active-high enable inputs, reducing the need for external gates or inverters during expansion. With no external inverters, a 24-line decoder can be implemented, and only one inverter is required for a 32-line decoder. The enable input can also be used as a data input for demultiplexing applications.
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Images are for illustration only; actual product may vary.