Overview
The SN74HC138PWRG4 is a 3-Line to 8-Line Decoder/Demultiplexer produced by Texas Instruments. This device is designed for high-performance memory-decoding and data-routing applications, particularly where short propagation delay times are crucial. It is part of the SNx4HC138 family, which is targeted specifically for high-speed memory decoders and data-transmission systems. The SN74HC138PWRG4 is available in a TSSOP (PW) package with 16 pins and operates over a wide temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Operating Voltage Range | 2 | 6 | V | |
| Propagation Delay Time (tpd) | 15 | ns | ||
| Output Drive at 5 V | ±4 | mA | ||
| Low Power Consumption (ICC) | 80 | µA | ||
| Input Current | 1 | µA | ||
| Output Load Drive Capability | 10 LSTTL Loads | |||
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- Targeted specifically for high-speed memory decoders and data-transmission systems.
- Wide operating voltage range (2 V to 6 V).
- Outputs can drive up to 10 LSTTL loads.
- Low power consumption, with a maximum ICC of 80 µA.
- Typical propagation delay time (tpd) of 15 ns.
- ±4-mA output drive at 5 V.
- Low input current of 1 µA maximum.
- Active low outputs (selected output is low).
- Incorporate three enable inputs to simplify cascading or data reception.
Applications
- LED Displays
- Servers
- White Goods
- Power Infrastructure
- Building Automation
- Factory Automation
Q & A
- What is the primary function of the SN74HC138PWRG4?
The SN74HC138PWRG4 is a 3-Line to 8-Line Decoder/Demultiplexer, designed for high-performance memory-decoding and data-routing applications.
- What is the operating voltage range of the SN74HC138PWRG4?
The operating voltage range is from 2 V to 6 V.
- What is the typical propagation delay time (tpd) of the SN74HC138PWRG4?
The typical propagation delay time is 15 ns.
- How much power does the SN74HC138PWRG4 consume?
The maximum power consumption (ICC) is 80 µA.
- What is the output drive capability of the SN74HC138PWRG4 at 5 V?
The output drive capability is ±4 mA at 5 V.
- Can the SN74HC138PWRG4 drive LSTTL loads?
Yes, it can drive up to 10 LSTTL loads.
- What is the input current of the SN74HC138PWRG4?
The maximum input current is 1 µA.
- What type of outputs does the SN74HC138PWRG4 have?
The outputs are active low, meaning the selected output is low.
- How many enable inputs does the SN74HC138PWRG4 have?
It has three enable inputs to simplify cascading or data reception.
- What is the operating temperature range of the SN74HC138PWRG4?
The operating temperature range is from -40°C to 85°C.
