Overview
The SN74AHCT139DGVR is a dual 2-line to 4-line decoder/demultiplexer produced by Texas Instruments. This IC is designed to decode two binary-coded inputs into one of four mutually exclusive outputs. It is part of the AHCT family, which is known for its high-speed operation and compatibility with TTL logic levels. The product is packaged in a compact TVSOP-16 form factor, making it suitable for space-constrained applications. The SN74AHCT139DGVR is ideal for use in digital systems, such as data routing, signal decoding, and address decoding in microcontrollers and other logic circuits.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (VCC) | 4.5 to 5.5 | V | |
| Input Voltage (VIN) | 0 to 5.5 | V | |
| Operating Temperature | -40 to 85 | °C | |
| Propagation Delay (tpd) | 10 | ns | Typical |
| Output Current (IOH/IOL) | ±8 | mA | |
| Package | TVSOP-16 | ||
| Logic Family | AHCT | Compatible with TTL |
Key Features
- Dual 2-line to 4-line decoder/demultiplexer functionality.
- High-speed operation with typical propagation delay of 10 ns.
- Compatible with TTL logic levels for easy integration into existing systems.
- Wide operating voltage range of 4.5 V to 5.5 V.
- Compact TVSOP-16 package for space-efficient designs.
- Low power consumption, making it suitable for battery-powered devices.
Applications
The SN74AHCT139DGVR is widely used in various digital systems, including:
- Data Routing: Efficiently routes data signals in complex digital circuits.
- Signal Decoding: Decodes binary signals into specific outputs for control purposes.
- Address Decoding: Used in microcontrollers and memory systems to decode address lines.
- Industrial Automation: Enhances logic control in automated systems.
- Consumer Electronics: Integrated into devices like TVs, gaming consoles, and communication equipment.
Q & A
1. What is the operating voltage range of the SN74AHCT139DGVR?
The operating voltage range is 4.5 V to 5.5 V.
2. Is the SN74AHCT139DGVR compatible with TTL logic levels?
Yes, it is fully compatible with TTL logic levels.
3. What is the typical propagation delay of this IC?
The typical propagation delay is 10 ns.
4. What package does the SN74AHCT139DGVR come in?
It is available in a TVSOP-16 package.
5. Can this IC be used in industrial applications?
Yes, it is suitable for industrial automation and control systems.
6. What is the maximum output current of the SN74AHCT139DGVR?
The maximum output current is ±8 mA.
7. Does this IC support low-power operation?
Yes, it features low power consumption, making it ideal for battery-powered devices.
8. How many input lines does the SN74AHCT139DGVR have?
It has two 2-line input sets, totaling four input lines.
9. What is the temperature range for operation?
It operates within a temperature range of -40°C to 85°C.
10. Can this IC be used in consumer electronics?
Yes, it is commonly used in devices like TVs, gaming consoles, and communication equipment.
