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Description
The 74HC139 DIP is a high-speed, low-power dual 2-to-4 line decoder/demultiplexer. This IC consists of two independent decoders, each converting a 2-bit binary input into a one-of-four active-low outputs. It is widely used in digital circuits for address decoding, memory selection, and logic demultiplexing applications.
Operating within a voltage range of 2V to 6V, the 74HC139 is compatible with both TTL and CMOS logic families. It features an active-low enable input for each decoder, allowing for better control and multiple device expansion. The device has a fast propagation delay of approximately 14 ns at 5V, ensuring high-speed operation in digital systems.
With its low power consumption and compact DIP-16 package, the 74HC139 is ideal for microprocessor memory decoding, logic signal routing, and control applications. Its ability to function as a demultiplexer makes it a versatile component in digital electronics, simplifying circuit designs that require multiple control lines.
Specifications:
| Parameter | Value |
|---|---|
| Logic Family | 74HC |
| Function | Dual 2-to-4 Line Decoder/Demultiplexer |
| Operating Voltage | 2V – 6V |
| Propagation Delay | Approx. 14 ns at 5V |
| Enable Input | Active-Low |
| Output Type | Active-Low |
| Package Type | DIP-16 (Dual In-line Package) |
| Number of Decoders | 2 |
| Number of Inputs | 4 (2 per decoder) |
| Number of Outputs | 8 (4 per decoder) |
Applications:
- Microprocessor address decoding
- Memory chip selection
- Logic demultiplexing
- Signal routing and data selection
- Control signal generation in embedded systems
The 74HC139 DIP is an essential component for efficient address decoding and logic control. Its high-speed operation, low power consumption, and dual decoder functionality make it ideal for a wide range of digital logic applications.
| Weight | 2 g |
|---|
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