Overview
The 74LVC138APW,118 is a 3-to-8 line decoder/demultiplexer produced by Nexperia USA Inc. This integrated circuit is designed to decode three binary weighted address inputs (A0, A1, and A2) into eight mutually exclusive outputs (Y0 to Y7). It features three enable inputs (E1, E2, and E3), allowing for easy parallel expansion and demultiplexing capabilities. The device is suitable for use in mixed 3.3 V and 5 V environments and is known for its low power consumption and high reliability.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC138APW | 1.2 - 3.6 | CMOS/LVTTL | ± 24 | 2.7 | Low | -40 ~ 125 | 126 | 4.8 | 55.9 | TSSOP16 |
Key Features
- Decoder/Demultiplexer Functionality: Decodes three binary weighted address inputs to eight mutually exclusive outputs.
- Enable Inputs: Features three enable inputs (E1, E2, and E3) for easy parallel expansion and demultiplexing.
- Voltage Compatibility: Inputs can be driven from either 3.3 V or 5 V devices, making it suitable for mixed voltage environments.
- Schmitt-trigger Action: Tolerant of slower input rise and fall times.
- Overvoltage Tolerance: Inputs are overvoltage tolerant up to 5.5 V.
- Low Power Consumption: Operates with a wide supply voltage range from 1.2 V to 3.6 V.
- ESD Protection: Complies with HBM and CDM ESD protection standards.
- Output Drive Capability: Capable of driving 50 Ω transmission lines at 125 °C.
Applications
The 74LVC138APW,118 is versatile and finds applications across various industries, including:
- Automotive: Used in automotive systems for decoding and demultiplexing signals.
- Industrial: Suitable for industrial control systems and automation.
- Computing: Used in computing systems for memory chip select decoding.
- Consumer Electronics: Applied in consumer electronics for signal processing and routing.
- Mobile and Wearables: Used in mobile devices and wearables for efficient signal management.
Q & A
- What is the primary function of the 74LVC138APW,118?
The primary function is to decode three binary weighted address inputs into eight mutually exclusive outputs.
- How many enable inputs does the 74LVC138APW,118 have?
It has three enable inputs (E1, E2, and E3).
- What is the voltage range for the supply voltage (VCC)?
The supply voltage range is from 1.2 V to 3.6 V.
- Is the 74LVC138APW,118 compatible with both 3.3 V and 5 V devices?
Yes, it is compatible with both 3.3 V and 5 V devices.
- What is the propagation delay of the 74LVC138APW,118?
The propagation delay is approximately 2.7 ns.
- Does the 74LVC138APW,118 have ESD protection?
Yes, it complies with HBM and CDM ESD protection standards.
- What is the operating temperature range for the 74LVC138APW,118?
The operating temperature range is from -40 °C to +125 °C.
- What package type is the 74LVC138APW,118 available in?
It is available in a TSSOP16 package.
- Can the 74LVC138APW,118 be used as a demultiplexer?
Yes, it can be used as an eight-output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes.
- Is the 74LVC138APW,118 RoHS compliant?
Yes, it is RoHS compliant.
