Overview
The SN74LVC138ADB is a 3-to-8 line decoder/demultiplexer produced by Texas Instruments. This integrated circuit is designed for high-performance digital systems, offering low power consumption and high-speed operation. It is part of the LVC (Low-Voltage CMOS) family, which is optimized for use in low-voltage applications. The SN74LVC138ADB is ideal for applications requiring signal decoding, demultiplexing, or address decoding in various electronic systems. Its target user groups include engineers and designers working on industrial automation, consumer electronics, and automotive electronics.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage Range | 1.65 to 3.6 | V | |
| Input Voltage Range | 0 to 5.5 | V | |
| Output Voltage Range | 0 to VCC | V | |
| Operating Temperature Range | -40 to 85 | °C | |
| Propagation Delay Time | 4.3 | ns | Typical at 3.3V |
| Power Dissipation | 500 | mW | |
| Package Type | SSOP | 16-pin | |
| Logic Family | LVC |
Key Features
- Low Power Consumption: Optimized for battery-powered and low-power applications.
- High-Speed Operation: Typical propagation delay of 4.3 ns at 3.3V.
- Wide Operating Voltage Range: Supports supply voltages from 1.65V to 3.6V.
- Robust Design: Tolerant to input voltages up to 5.5V, ensuring compatibility with higher voltage systems.
- Compact Package: Available in a 16-pin SSOP package, suitable for space-constrained designs.
Applications
The SN74LVC138ADB is widely used in various applications, including:
- Industrial Automation: Used in control systems for signal decoding and demultiplexing.
- Consumer Electronics: Integrated into devices like set-top boxes and gaming consoles for address decoding.
- Automotive Electronics: Employed in vehicle control units for signal routing and decoding.
- Telecommunications: Utilized in communication equipment for signal processing and routing.
Q & A
1. What is the operating voltage range of the SN74LVC138ADB?
The operating voltage range is from 1.65V to 3.6V.
2. Can the SN74LVC138ADB tolerate input voltages higher than its supply voltage?
Yes, it can tolerate input voltages up to 5.5V.
3. What is the typical propagation delay of the SN74LVC138ADB?
The typical propagation delay is 4.3 ns at 3.3V.
4. What package type does the SN74LVC138ADB come in?
It comes in a 16-pin SSOP package.
5. Is the SN74LVC138ADB suitable for low-power applications?
Yes, it is optimized for low-power consumption.
6. What is the maximum power dissipation of the SN74LVC138ADB?
The maximum power dissipation is 500 mW.
7. Can the SN74LVC138ADB be used in automotive applications?
Yes, it is suitable for automotive electronics.
8. What is the operating temperature range of the SN74LVC138ADB?
The operating temperature range is from -40°C to 85°C.
9. Does the SN74LVC138ADB support high-speed operation?
Yes, it supports high-speed operation with a typical propagation delay of 4.3 ns.
10. What is the logic family of the SN74LVC138ADB?
It belongs to the LVC (Low-Voltage CMOS) logic family.
