Overview
The 74HC139DB,112 is a dual 2-to-4 line decoder/demultiplexer integrated circuit produced by Nexperia USA Inc. This device is part of the 74HC series, known for its high-speed Si-gate CMOS technology. It is designed to be pin compatible with low power Schottky TTL (LSTTL) and complies with JEDEC standard no. 7A. The 74HC139DB,112 features two independent decoders, each accepting two binary weighted inputs and providing four mutually exclusive active LOW outputs. This component is suitable for a variety of digital logic applications, including decoding and demultiplexing functions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Type of Integrated Circuit | 2 to 4 line decoder/demultiplexer | |
| Number of Channels | 2 | |
| Number of Inputs | 2 per channel | |
| Technology | CMOS | |
| Mounting Type | SMD (Surface Mount) | |
| Package Type | SSOP16 (SOT338-1) | |
| Package Dimensions | 6.2 mm x 5.3 mm x 2 mm | |
| Supply Voltage | 2 V to 6 V | V |
| Operating Temperature | -40°C to 125°C | °C |
| Propagation Delay (nAn to Yn) | 11 to 220 ns | ns |
| Output Transition Time | 6 to 110 ns | ns |
| Output Current (High/Low) | 5.2 mA / 5.2 mA | mA |
Key Features
- Demultiplexing Capability: The device can function as a demultiplexer, allowing a single input to be routed to one of four possible outputs.
- Two Independent Decoders: Each decoder accepts two binary weighted inputs and provides four mutually exclusive active LOW outputs.
- Multifunction Capability: Can be used in both decoding and demultiplexing applications.
- Active LOW Outputs: Outputs are active LOW, meaning they are LOW when selected and HIGH when not selected.
- High-Speed Operation: High-speed Si-gate CMOS technology ensures fast operation.
- Pin Compatibility: Pin compatible with low power Schottky TTL (LSTTL).
Applications
- Digital Logic Circuits: Ideal for use in digital logic circuits requiring decoding or demultiplexing functions.
- Computer Systems: Can be used in various computer systems for data routing and selection.
- Communication Equipment: Suitable for use in communication equipment where data needs to be routed to different channels.
- Industrial Control Systems: Used in industrial control systems for signal routing and processing.
Q & A
- What is the primary function of the 74HC139DB,112?
The primary function is to act as a dual 2-to-4 line decoder/demultiplexer.
- What technology is used in the 74HC139DB,112?
The device uses high-speed Si-gate CMOS technology.
- How many independent decoders does the 74HC139DB,112 have?
It has two independent decoders.
- What is the package type of the 74HC139DB,112?
The package type is SSOP16 (SOT338-1).
- What is the operating temperature range of the 74HC139DB,112?
The operating temperature range is -40°C to 125°C.
- Can the 74HC139DB,112 be used as a demultiplexer?
Yes, it can be used as a demultiplexer.
- What is the supply voltage range for the 74HC139DB,112?
The supply voltage range is 2 V to 6 V.
- Are the outputs of the 74HC139DB,112 active HIGH or active LOW?
The outputs are active LOW.
- Is the 74HC139DB,112 pin compatible with other logic families?
Yes, it is pin compatible with low power Schottky TTL (LSTTL).
- What is the typical propagation delay of the 74HC139DB,112?
The typical propagation delay ranges from 11 to 220 ns depending on the conditions.
