SN74HC138PWRG4 - 3-to-8 Line Decoder/Demultiplexer from Texas Instruments

The SN74HC138PWRG4 is a high-performance, integrated circuit designed by Texas Instruments, known for its reliability and versatility in digital systems. This device is part of the HC family and is a 3-to-8 line decoder/demultiplexer that features a wide operating voltage range and high noise immunity characteristic of the HC and HCT logic families.

With its ability to accept three binary weighted inputs (A0, A1, and A2) and activate one of the eight mutually exclusive outputs, the SN74HC138PWRG4 is essential for hardware designers looking to increase the efficiency of their systems by reducing the number of lines needed to connect peripherals. This makes it an ideal choice for applications such as memory chip selection, data routing, and resource allocation in microcontroller-based systems.

The device features a demultiplexing capability by distributing data from an input to any of the eight outputs. It also has three enable inputs (two active-low and one active-high) that simplify the expansion of the device to decode a higher number of inputs, making it highly scalable for complex digital systems.

The SN74HC138PWRG4 is available in a TSSOP (Thin Shrink Small Outline Package) with a body size of 4.40 mm x 5.00 mm. The package is designed for space-saving on PCBs and is suitable for automated surface-mount assembly processes. The device operates over a broad temperature range from -40°C to 85°C, making it reliable in various environmental conditions.

Key features of the SN74HC138PWRG4 include:

• Wide Operating Voltage Range: 2 V to 6 V
• High-Current Outputs Drive Up To 15 LSTTL Loads
• Low Power Consumption: 80-µA Maximum ICC
• Typical tpd = 15 ns
• ±4-mA Output Drive at 5 V
• Low Input Current of 1 µA Maximum
• Significant Power Reduction Compared to LSTTL Logic ICs

With its combination of power efficiency, high functionality, and ease of use, the SN74HC138PWRG4 is a suitable choice for a wide range of digital applications, including industrial controls, consumer electronics, and data communication systems.