SM74HC138D

The SM74HC138D is a high-speed CMOS 3-to-8 line decoder/demultiplexer. It takes three binary inputs (A0, A1, A2) and decodes them into one of eight active low outputs (Y0 to Y7). The device also features enable inputs (G1, G2A, G2B) that control its operation, ensuring flexibility in digital circuit design.
Key characteristics include high-speed operation, low power consumption, and compatibility with TTL logic levels. The SM74HC138D is widely used in applications such as memory address decoding, data routing, and signal demultiplexing.
The outputs are active low, meaning that when a specific combination of inputs is present, the corresponding output goes low (0) while all others remain high (1). It operates over a wide voltage range and is suitable for various electronic applications, making it a versatile component in digital systems.

The SM74HC138D is a high-speed, 3-to-8 line decoder/demultiplexer with the following key features:
1. Functionality: It decodes 3 binary inputs into 8 unique outputs, enabling selection of one of the eight outputs based on the input combination.
2. Active Low Outputs: The outputs (Y0 to Y7) are active low, meaning that the selected output goes low, while all others remain high.
3. Enable Inputs: It includes three enable inputs (G1, G2A, G2B) that must be properly configured for the device to function, allowing for flexible control and cascading of multiple devices.
4. High-Speed Operation: Designed for high-speed applications, it features typical propagation delays as low as 5 ns, making it suitable for fast digital circuits.
5. Wide Supply Voltage Range: It operates within a supply voltage range of 2V to 6V, ensuring compatibility with various logic levels.
6. Low Power Consumption: The device offers low power dissipation, making it energy-efficient in digital applications.
7. TTL Compatibility: It is compatible with TTL (Transistor-Transistor Logic) systems, enhancing its versatility in circuit design.
These features make the SM74HC138D suitable for a variety of applications, including memory address decoding and data routing.

The SM74HC138D is typically packaged in a Dual In-line Package (DIP) type, specifically a 16-pin DIP. This package format allows for easy integration into breadboards and circuit boards.

The SM74HC138D is a 3-to-8 line decoder/demultiplexer in a 16-pin Dual In-Line Package (DIP). It features three input lines (A0, A1, A2) and eight output lines (Y0 to Y7). The pin configuration is as follows:
1. Pin 1: GND (Ground)
2. Pin 2: A0 (Input)
3. Pin 3: A1 (Input)
4. Pin 4: A2 (Input)
5. Pin 5: Enable 1 (active HIGH)
6. Pin 6: Enable 2 (active LOW)
7. Pin 7: Enable 3 (active LOW)
8. Pin 8: Y0 (Output)
9. Pin 9: Y1 (Output)
10. Pin 10: Y2 (Output)
11. Pin 11: Y3 (Output)
12. Pin 12: Y4 (Output)
13. Pin 13: Y5 (Output)
14. Pin 14: Y6 (Output)
15. Pin 15: Y7 (Output)
16. Pin 16: VCC (Power Supply)
The SM74HC138D decodes the binary input provided on A0, A1, and A2 to activate one of the eight outputs while keeping the others low, based on the enable inputs.

The SM74HC138D is a product manufactured by Nexperia, a company known for its expertise in semiconductor solutions. Nexperia was formed as a spin-off from NXP Semiconductors and specializes in discrete, logic, and MOSFET components. The company focuses on high-quality manufacturing and provides a wide range of products used in various applications, including automotive, industrial, and consumer electronics. Nexperia is recognized for its commitment to reliability and efficiency in electronic components. The "74HC138" refers to a specific 3-to-8 line decoder/demultiplexer, while the "D" at the end denotes a specific package type, typically a dual in-line package (DIP).

The SM74HC138D is a 3-to-8 line decoder/demultiplexer used in various applications, including data routing, memory address decoding, and multiplexing. It can enable specific devices in communication systems, manage data selection in digital circuits, and facilitate memory management in microcontroller interfaces. Its high-speed operation and low power consumption make it suitable for consumer electronics, telecommunications, and industrial control systems.

The SM74HC138D is a 3-to-8 line decoder/demultiplexer. Equivalent products include:
1. 74HC138 (Texas Instruments)
2. 74HCT138 (Texas Instruments for TTL compatibility)
3. MC74HC138A (ON Semiconductor)
4. SN74HC138 (Texas Instruments)
5. CD74HC138 (Texas Instruments)
These devices share similar functionality and logic levels. Always check specific datasheets for compatibility and characteristics.