The RD74LVC138BFPEL-E is a high-speed CMOS 3-to-8 line decoder/demultiplexer manufactured by Renesas Electronics America. This device accepts three binary weighted inputs (A0, A1, and A2) and, depending on the input combination, provides a low-active output on one of its eight output lines. It is designed for use in a wide range of digital systems requiring address decoding, memory selection, or data routing.

Applications

• Address Decoding: Used to decode memory addresses in microprocessor systems.
• Memory Selection: Employed to select one of multiple memory chips.
• Data Routing: Utilized to route data to different destinations.
• Peripheral Selection: Used to select one of multiple peripheral devices.
• Logic Control: Implemented in control circuits for sequencing and timing.
• Industrial Automation: Used in programmable logic controllers (PLCs).
• Computer Systems: Employed in motherboard designs and expansion cards.

Features

• 3-to-8 Line Decoder/Demultiplexer: Decodes three binary inputs to activate one of eight outputs.
• High-Speed CMOS Logic: Provides fast switching speeds and low power consumption.
• Low-Active Outputs: Outputs are active low, simplifying circuit design.
• Enable Inputs: Features three enable inputs (E1, E2, and E3) for flexible control.
• Wide Operating Voltage Range: Operates over a broad voltage range, typically from 2V to 5.5V.
• Surface Mount Package: Facilitates easy and efficient assembly on PCBs.
• RoHS Compliant: Compliant with Restriction of Hazardous Substances directive.

Benefits

• Simplified Address Decoding: Reduces complexity in memory and peripheral selection.
• High-Speed Operation: Fast switching speeds enable efficient operation in high-performance systems.
• Low Power Consumption: Minimizes power consumption, extending battery life in portable devices.
• Flexible Control: Enable inputs provide versatile control options.
• Compact Design: Small size allows for use in space-constrained applications.

Additional Details

The RD74LVC138BFPEL-E decoder/demultiplexer is designed with robust input protection circuitry to prevent damage from electrostatic discharge (ESD). It is available in a compact package to facilitate efficient board layout. The device is tested for key parameters such as propagation delay, input capacitance, and output drive capability, ensuring consistent performance. This decoder/demultiplexer is a versatile and reliable solution for demanding digital systems, providing efficient and stable operation in diverse electronic applications. The enable inputs allow for cascading multiple devices to create larger decoding networks.