Overview
The MC74HC138ADTEL is a 1-of-8 decoder/demultiplexer integrated circuit produced by Motorola. This component is part of the HC (High-Speed CMOS) logic family, known for its high speed and low power consumption. The MC74HC138ADTEL is designed to decode a 3-bit binary input into one of eight mutually exclusive outputs, making it useful in various digital circuit applications such as data routing, memory addressing, and control logic.
Key Specifications
| Parameter | Value |
|---|---|
| Function | 1-of-8 Decoder/Demultiplexer |
| Logic Family | HC (High-Speed CMOS) |
| Input Voltage Range | 2.0 V to 6.0 V |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | TSSOP-16, SOIC-16 |
| Propagation Delay (Typical) | 15 ns (at Vcc = 5V, Ta = 25°C) |
| Power Dissipation (Typical) | 80 μW (at Vcc = 5V, Ta = 25°C) |
| Input Current (Typical) | 1 μA (at Vcc = 5V, Ta = 25°C) |
Key Features
- High-Speed Operation: The MC74HC138ADTEL operates at high speeds with a typical propagation delay of 15 ns at 5V and 25°C.
- Low Power Consumption: It consumes very low power, typically 80 μW at 5V and 25°C.
- Wide Operating Voltage Range: The component can operate over a voltage range of 2.0 V to 6.0 V.
- Wide Operating Temperature Range: It can function in temperatures ranging from -40°C to 125°C.
- Mutually Exclusive Outputs: The decoder ensures that only one output is active at a time, based on the 3-bit binary input.
Applications
- Data Routing and Switching: Used in digital circuits to route data to one of several possible paths based on a binary input.
- Memory Addressing: Can be used in memory systems to decode addresses and select specific memory locations.
- Control Logic: Utilized in control circuits to manage and direct the flow of signals based on input conditions.
- Digital Multiplexing: Employed in demultiplexing applications where a single input needs to be distributed to multiple outputs.
Q & A
- What is the primary function of the MC74HC138ADTEL?
The primary function is to act as a 1-of-8 decoder/demultiplexer, converting a 3-bit binary input into one of eight mutually exclusive outputs.
- Which logic family does the MC74HC138ADTEL belong to?
It belongs to the HC (High-Speed CMOS) logic family.
- What is the typical propagation delay of the MC74HC138ADTEL at 5V and 25°C?
The typical propagation delay is 15 ns.
- What is the operating voltage range of the MC74HC138ADTEL?
The operating voltage range is from 2.0 V to 6.0 V.
- What is the typical power consumption of the MC74HC138ADTEL at 5V and 25°C?
The typical power consumption is 80 μW.
- What are the common package types for the MC74HC138ADTEL?
The common package types are TSSOP-16 and SOIC-16.
- What is the operating temperature range of the MC74HC138ADTEL?
The operating temperature range is from -40°C to 125°C.
- How many inputs and outputs does the MC74HC138ADTEL have?
It has 3 inputs and 8 outputs.
- What are some common applications of the MC74HC138ADTEL?
Common applications include data routing, memory addressing, control logic, and digital multiplexing.
- Is the MC74HC138ADTEL suitable for high-speed applications?
Yes, it is suitable for high-speed applications due to its low propagation delay.
