Overview
The 74LVC139D,118 is a dual 2-to-4 line decoder/demultiplexer produced by Nexperia USA Inc. This device is designed for use in digital logic applications, including data routing and address decoding in various sectors such as consumer electronics, telecommunications, and industrial systems. It is particularly useful in mixed voltage environments, allowing for level translation between 3.3 V and 5 V systems.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Device Type | Dual 2-to-4 line decoder/demultiplexer | |
| Package | 16-SOIC (SOT109-1) | |
| Supply Voltage Range | 1.2 V to 3.6 V | |
| Overvoltage Tolerant Inputs | Up to 5.5 V | |
| Operating Temperature Range | -40°C to +85°C (and up to +125°C for some parameters) | |
| Input Voltage Levels | Compatible with 3.3 V and 5 V devices | |
| Enable Input | Forces all outputs HIGH when HIGH | |
| Output Drive Capability | 50 Ω transmission lines at 125 °C | |
| Compliance | JESD8-7A (1.65 V to 1.95 V) | |
| RoHS Status | Lead free / RoHS Compliant |
Key Features
- Wide supply voltage range from 1.2 V to 3.6 V
- Overvoltage tolerant inputs up to 5.5 V
- CMOS low power dissipation
- Direct interface with TTL levels
- Demultiplexing capability
- Two independent 2-to-4 decoders
- Multifunction capability
- Mutually exclusive outputs
- Schmitt-trigger action at all inputs for tolerance of slower input rise and fall times
Applications
The 74LVC139D is suitable for a variety of digital logic applications, including:
- Data routing and address decoding in consumer electronics
- Telecommunications systems
- Industrial systems
- Mixed voltage environments requiring level translation between 3.3 V and 5 V systems
Q & A
- What is the primary function of the 74LVC139D?
The 74LVC139D is a dual 2-to-4 line decoder/demultiplexer that decodes two binary weighted address inputs into four mutually exclusive outputs.
- What is the supply voltage range of the 74LVC139D?
The supply voltage range is from 1.2 V to 3.6 V.
- Can the 74LVC139D handle overvoltage inputs?
Yes, the inputs are overvoltage tolerant up to 5.5 V.
- Is the 74LVC139D compatible with TTL levels?
Yes, it can interface directly with TTL levels.
- What is the operating temperature range of the 74LVC139D?
The operating temperature range is -40°C to +85°C (and up to +125°C for some parameters).
- Can the 74LVC139D be used in mixed voltage environments?
Yes, it can be used to translate levels between 3.3 V and 5 V systems.
- What is the package type of the 74LVC139D,118?
The package type is 16-SOIC (SOT109-1).
- Is the 74LVC139D RoHS compliant?
Yes, it is lead free and RoHS compliant.
- What is the purpose of the enable input (nE) in the 74LVC139D?
The enable input forces all outputs HIGH when it is HIGH and can be used as the data input for a 1-to-4 demultiplexer application.
- Does the 74LVC139D have any special input characteristics?
Yes, it features Schmitt-trigger action at all inputs, making it tolerant of slower input rise and fall times.
