Overview
The SN74LVC139ADR is a dual 2-line to 4-line decoder/demultiplexer produced by Texas Instruments. This device is designed to operate within a voltage range of 1.65 V to 3.6 V, making it versatile for various digital circuit applications. It features two individual 2-line to 4-line decoders in a single package, with each decoder capable of decoding two input lines to four output lines. The active-low enable (G) input can be used as a data line in demultiplexing applications, enhancing its functionality in mixed 3.3-V/5-V system environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 16 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 1.65 to 3.6 | V |
| Input Voltage Range | -0.5 to 6.5 | V |
| Output Voltage Range | -0.5 to VCC + 0.5 | V |
| Maximum Propagation Delay (tpd) | 6.2 | ns |
| Typical Output Ground Bounce (VOLP) | < 0.8 | V at VCC = 3.3 V, TA = 25°C |
| Typical Output VOH Undershoot (VOHV) | > 2 | V at VCC = 3.3 V, TA = 25°C |
| Latch-Up Performance | > 250 mA per JESD 17 | - |
| ESD Protection | 2000-V Human-Body Model, 200-V Machine Model, 1000-V Charged-Device Model | - |
Key Features
- Operates from 1.65 V to 3.6 V, making it suitable for a wide range of digital circuit applications.
- Inputs accept voltages up to 5.5 V, allowing compatibility with 3.3-V and 5-V devices.
- Maximum propagation delay of 6.2 ns.
- Typical output ground bounce (VOLP) less than 0.8 V at VCC = 3.3 V, TA = 25°C.
- Typical output VOH undershoot (VOHV) greater than 2 V at VCC = 3.3 V, TA = 25°C.
- Latch-up performance exceeds 250 mA per JESD 17.
- ESD protection exceeds JESD 22 standards (2000-V Human-Body Model, 200-V Machine Model, 1000-V Charged-Device Model).
- Fully buffered inputs, each representing only one normalized load to its driving circuit.
- Active-low enable (G) input can be used as a data line in demultiplexing applications.
Applications
- Digital decoding and demultiplexing in various electronic systems.
- Mixed 3.3-V/5-V system environments where voltage translation is necessary.
- High-speed digital circuits requiring low propagation delay and robust ESD protection.
- Embedded systems, microcontrollers, and other digital logic circuits.
- Communication and networking equipment where signal integrity is crucial.
Q & A
- What is the operating voltage range of the SN74LVC139ADR?
The SN74LVC139ADR operates from 1.65 V to 3.6 V.
- How many pins does the SN74LVC139ADR have?
The SN74LVC139ADR has 16 pins.
- What is the maximum propagation delay of the SN74LVC139ADR?
The maximum propagation delay is 6.2 ns.
- What kind of ESD protection does the SN74LVC139ADR offer?
The device offers ESD protection exceeding JESD 22 standards, including 2000-V Human-Body Model, 200-V Machine Model, and 1000-V Charged-Device Model.
- Can the SN74LVC139ADR be used in mixed 3.3-V/5-V system environments?
Yes, the device can be used in mixed 3.3-V/5-V system environments as it accepts input voltages up to 5.5 V.
- What is the typical output ground bounce (VOLP) of the SN74LVC139ADR?
The typical output ground bounce (VOLP) is less than 0.8 V at VCC = 3.3 V, TA = 25°C.
- What is the latch-up performance of the SN74LVC139ADR?
The latch-up performance exceeds 250 mA per JESD 17.
- How can the active-low enable (G) input be used?
The active-low enable (G) input can be used as a data line in demultiplexing applications.
- What are some common applications of the SN74LVC139ADR?
Common applications include digital decoding and demultiplexing, mixed 3.3-V/5-V system environments, high-speed digital circuits, embedded systems, and communication equipment.
- What is the operating temperature range of the SN74LVC139ADR?
The operating temperature range is -40°C to 85°C.
