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The 74HC138AP is a high-speed CMOS decoder/demultiplexer IC manufactured by Toshiba (TOS). Below are its factual specifications, descriptions, and features:

Specifications:

• Manufacturer: Toshiba (TOS)
• Series: 74HC
• Type: 3-to-8 Line Decoder/Demultiplexer
• Logic Family: HC (High-Speed CMOS)
• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 19ns (typical at 5V)
• Input Current: ±1µA (max)
• Output Current: ±25mA (max)
• Package: DIP-16 (Plastic Dual In-Line Package)
• Pin Count: 16

Descriptions:

• The 74HC138AP is a 3-to-8 line decoder/demultiplexer that takes a 3-bit binary input and activates one of eight output lines based on the input combination.
• It features three enable inputs (E1, E2, E3) for flexible control.
• Designed for high-speed CMOS applications with low power consumption.
• Suitable for memory decoding, data routing, and address decoding in digital circuits.

Features:

• Low Power Consumption: CMOS technology ensures minimal power dissipation.
• High Noise Immunity: Improved noise resistance compared to standard CMOS.
• Wide Operating Voltage Range: 2V to 6V.
• Schmitt Trigger Action on Enable Inputs: Ensures stable operation with slow input transitions.
• Compatible with TTL Levels: Can interface with TTL logic (with appropriate voltage considerations).
• Multiple Enable Inputs: Allows cascading for larger decoding applications.

This information is strictly factual, based on Toshiba's datasheet for the 74HC138AP. For detailed electrical characteristics and timing diagrams, refer to the official manufacturer documentation.