Overview
The SN74HCS138PWR is a 3-to-8 line decoder/demultiplexer produced by Texas Instruments. It is designed for use in a wide range of electronic systems where signal routing and decoding are required. This component is particularly useful in applications that need to reduce the number of outputs required for chip selection, making it a versatile choice for designers. Its market positioning is aimed at industries such as industrial automation, consumer electronics, and automotive electronics, where reliable and efficient signal decoding is crucial. The SN74HCS138PWR stands out for its wide operating voltage range, low power consumption, and Schmitt-trigger inputs that allow for handling slow or noisy input signals.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Operating Voltage Range | 2V to 6V | V | |
| Supply Current (ICC) | 100nA | A | Typical |
| Input Leakage Current | ±100nA | A | Typical at 6V |
| Output Drive Current | ±7.8mA | A | At 6V |
| Operating Temperature Range | -40°C to +125°C | °C | |
| Package | TSSOP-16 |
Key Features
- Wide operating voltage range from 2V to 6V, suitable for various applications.
- Schmitt-trigger inputs for noise immunity and handling of slow input signals.
- Low power consumption with a typical supply current of 100nA.
- High output drive capability of ±7.8mA at 6V.
- Robust performance across a wide temperature range from -40°C to +125°C.
Applications
The SN74HCS138PWR is widely used in applications that require efficient signal decoding and routing. It is particularly beneficial in systems with shared data buses, where it helps reduce the number of outputs needed for chip selection. Common application areas include industrial automation, where it can be used in control systems, consumer electronics for signal routing in devices, and automotive electronics for managing multiple signals in vehicle control units. Its ability to handle noisy environments and low power consumption makes it a reliable choice for these demanding applications.
Q & A
What is the operating voltage range of the SN74HCS138PWR?
The operating voltage range is from 2V to 6V.
What is the typical supply current of the SN74HCS138PWR?
The typical supply current is 100nA.
What are the benefits of Schmitt-trigger inputs in this component?
Schmitt-trigger inputs allow the component to handle slow or noisy input signals effectively.
What is the output drive capability of the SN74HCS138PWR?
The output drive capability is ±7.8mA at 6V.
What is the operating temperature range of the SN74HCS138PWR?
The operating temperature range is from -40°C to +125°C.
What package does the SN74HCS138PWR come in?
It comes in a TSSOP-16 package.
What are some common applications of the SN74HCS138PWR?
Common applications include industrial automation, consumer electronics, and automotive electronics.
How does the SN74HCS138PWR help in reducing the number of outputs for chip selection?
It efficiently decodes signals, allowing fewer outputs to manage multiple chip selections.
Is the SN74HCS138PWR suitable for high-noise environments?
Yes, its Schmitt-trigger inputs make it suitable for high-noise environments.
What is the input leakage current of the SN74HCS138PWR?
The input leakage current is typically ±100nA at 6V.
