Overview
The 74LVC139PW/AUJ, produced by NXP USA Inc., is a dual 2-to-4 line decoder/demultiplexer integrated circuit. This component is designed to decode two binary weighted address inputs (nA0, nA1) into four mutually exclusive outputs (nY0 to nY3). Each decoder features an enable input (nE) that, when set HIGH, forces all outputs HIGH, allowing for demultiplexer functionality. The device is compatible with both 3.3 V and 5 V logic levels, making it suitable for use in mixed voltage environments.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | - | 1.2 | - | 3.6 | V |
| VIH (HIGH-level input voltage) | VCC = 2.7 V to 3.6 V | 2.0 | - | 2.0 | V |
| VIL (LOW-level input voltage) | VCC = 1.2 V | - | - | 0.12 | V |
| VOL (LOW-level output voltage) | IO = 100 μA; VCC = 1.65 V to 3.6 V | - | - | 0.3 | V |
| II (input leakage current) | VCC = 3.6 V; VI = 5.5 V or GND | - | ±0.1 | ±20 | μA |
| ICC (supply current) | VCC = 3.6 V; VI = VCC or GND; IO = 0 A | - | 0.1 | 40 | μA |
| CI (input capacitance) | VCC = 0 V to 3.6 V; VI = GND to VCC | - | 5.0 | - | pF |
| tPD (propagation delay) | VCC = 3.0 V to 3.6 V | 1.0 | 2.5 | 5.3 | ns |
Key Features
- Wide supply voltage range from 1.2 V to 3.6 V
- Overvoltage tolerant inputs 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 improved noise immunity
Applications
- Data transmission and reception systems requiring decoding and demultiplexing
- Mixed voltage environments where compatibility with both 3.3 V and 5 V logic is necessary
- Digital logic circuits requiring low power consumption and high noise immunity
- Embedded systems and microcontrollers needing decoder/demultiplexer functions
- Communication and networking equipment
Q & A
- What is the primary function of the 74LVC139PW/AUJ?
The primary function is to decode two binary weighted address inputs into four mutually exclusive outputs, and it can also function as a demultiplexer.
- What is the supply voltage range for the 74LVC139PW/AUJ?
The supply voltage range is from 1.2 V to 3.6 V.
- Is the 74LVC139PW/AUJ compatible with both 3.3 V and 5 V logic levels?
Yes, it is compatible with both 3.3 V and 5 V logic levels, making it suitable for mixed voltage environments.
- What is the input leakage current of the 74LVC139PW/AUJ?
The input leakage current is ±0.1 μA to ±20 μA at VCC = 3.6 V and VI = 5.5 V or GND.
- What is the propagation delay of the 74LVC139PW/AUJ?
The propagation delay ranges from 1.0 ns to 5.3 ns for VCC = 3.0 V to 3.6 V.
- Does the 74LVC139PW/AUJ have Schmitt-trigger inputs?
Yes, it features Schmitt-trigger action at all inputs, which improves noise immunity.
- What is the package type of the 74LVC139PW/AUJ?
The package type is 16-TSSOP (Thin Shrink Small Outline Package).
- Is the 74LVC139PW/AUJ RoHS compliant?
Yes, it is RoHS compliant.
- What are some common applications of the 74LVC139PW/AUJ?
Common applications include data transmission systems, mixed voltage environments, digital logic circuits, embedded systems, and communication equipment.
- How many decoders are included in the 74LVC139PW/AUJ?
It includes two independent 2-to-4 decoders.
