The IC 74139 Dual 2-to-4 Decoder/Demultiplexer is a high-speed TTL logic device that includes two independent 2-to-4 line decoders, each with active-low outputs. It efficiently converts binary inputs into one of four outputs, enabling signal routing, data selection, and logic control in digital systems. Each section features its own enable input, allowing independent or cascaded operation for complex decoding tasks. The 74139 operates from a standard 5V supply and offers fast propagation delays, making it ideal for use in address decoding, memory interfacing, and logic expansion. Its fully TTL-compatible design ensures smooth integration with microcontrollers, CPUs, and other logic devices, while the standard 16-pin DIP package makes it perfect for both educational and industrial circuit designs. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
Dual 2-to-4 line decoders with active-low outputs.
Independent enable inputs for each decoder section.
TTL-compatible inputs and outputs for easy interfacing.
High-speed operation with low propagation delay.
Ideal for address decoding and signal routing applications.
Compact 16-pin DIP package for prototyping and circuit assembly.
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Applications:
Address decoding in memory and I/O systems.
Signal routing and data selection in digital circuits.
Logic control and expansion for microcontroller-based systems.
Used in multiplexing and demultiplexing applications.
Educational use in digital electronics and TTL logic experiments.
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| General Specifications |
| IC Type | Dual 2-to-4 Decoder/Demultiplexer |
| Logic Family | TTL |
| Number of Decoders | 2 |
| Inputs per Decoder | 2 |
| Outputs per Decoder | 4 (Active-Low) |
| Enable Inputs | 2 (Independent) |
| Supply Voltage | 4.75V – 5.25V |
| Logic Compatibility | TTL |
| Propagation Delay | 20 ns typical |
| Output Drive Capability | 10 TTL Loads |
| Package Type | DIP-16 |
| Operating Temperature Range | 0°C to +70°C |
| Typical Supply Current | 8 mA |
| Shipment Weight | 0.0016 kg |
| Shipment Dimensions | 4 × 3 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
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Package Includes:
1 x IC 74139 Dual 2-to-4 Decoder / Demultiplexer
