Overview
The CD74ACT139MG4 is a dual 2-to-4 line decoder/demultiplexer produced by Texas Instruments. This IC is part of the 74ACT series, designed for high-performance memory-decoding or data-routing applications. It operates within a voltage range of 4.5V to 5.5V and is suitable for use in environments with temperatures ranging from -55°C to 125°C. The CD74ACT139MG4 is packaged in a 16-SOIC format, making it ideal for surface-mount applications. Its target user groups include engineers and designers working on high-speed memory systems and data routing solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Category | Logic - Signal Switch, Multiplexer, Decoder | - | - |
| Description | IC Dual 2-4 Decoder/Demux | - | - |
| Series | 74ACT | - | - |
| Manufacturer | Texas Instruments | - | - |
| Type | Decoder/Demultiplexer | - | - |
| Circuit | 1 x 2:4 | - | - |
| Independent Circuits | 2 | - | - |
| Output Current (High/Low) | 24mA / 24mA | mA | - |
| Voltage Source | Single Supply | - | - |
| Supply Voltage | 4.5 - 5.5 | V | - |
| Operating Temperature | -55 to 125 | °C | - |
| Mounting Type | Surface Mount | - | - |
| Package / Case | 16-SOIC | - | - |
| Supplier Device Package | 16-SOIC N | - | - |
| Packaging | Tube | - | - |
Key Features
- Dual 2-to-4 line decoder/demultiplexer for high-performance applications.
- Operates within a wide voltage range of 4.5V to 5.5V.
- Designed for high-speed memory-decoding and data-routing.
- Fully buffered inputs for reduced loading on driving circuits.
- Balanced propagation delays and ±24mA output drive current.
- SCR-latchup-resistant CMOS process for enhanced reliability.
- Exceeds 2kV ESD protection per MIL-STD-883, Method 3015.
Applications
The CD74ACT139MG4 is widely used in high-performance memory systems and data routing applications. Its ability to minimize system decoding effects makes it ideal for use in high-speed memory systems. Additionally, it is suitable for demultiplexing applications where the enable input can function as a data line. Common application fields include industrial automation, consumer electronics, and automotive electronics, where reliable and high-speed data decoding is essential.
Q & A
1. What is the operating voltage range of the CD74ACT139MG4?
The CD74ACT139MG4 operates within a voltage range of 4.5V to 5.5V.
2. What is the maximum output current of the CD74ACT139MG4?
The maximum output current is ±24mA.
3. What is the operating temperature range of the CD74ACT139MG4?
The operating temperature range is from -55°C to 125°C.
4. What is the package type of the CD74ACT139MG4?
The CD74ACT139MG4 is packaged in a 16-SOIC format.
5. How many independent circuits does the CD74ACT139MG4 have?
It has 2 independent circuits.
6. What is the primary application of the CD74ACT139MG4?
It is primarily used in high-performance memory-decoding and data-routing applications.
7. What is the propagation delay of the CD74ACT139MG4?
The typical propagation delay is 5.4ns at 5V and 25°C.
8. Is the CD74ACT139MG4 suitable for surface-mount applications?
Yes, it is designed for surface-mount applications.
9. What is the significance of the fully buffered inputs in the CD74ACT139MG4?
Fully buffered inputs reduce the loading on the driving circuit, enhancing performance.
10. Does the CD74ACT139MG4 offer ESD protection?
Yes, it exceeds 2kV ESD protection per MIL-STD-883, Method 3015.
