SN74HC08N Quad 2-Input AND Gate IC DIP-14

SN74HC08N Quad 2-Input AND Gate IC DIP-14 is a highly popular integrated circuit that provides four independent 2-input AND gates, offering essential combinational logic for a wide range of digital systems. Utilizing High-speed CMOS (HC) technology, this IC combines the low power consumption of CMOS with the fast switching speeds typically associated with LSTTL. The SN74HC08N’s gates perform the boolean AND function: the output only asserts high when both inputs are high. Consequently, this IC serves as a fundamental building block for logic operations, allowing designers to easily implement control sequencing and data selection within their circuits. Furthermore, its wide operating voltage range ensures seamless integration across various micro-controller and logic-level platforms.

Key Features:

• Quad Configuration: The chip integrates four distinct and independent 2-input AND gates, maximizing logic density in a single package.
• High-Speed CMOS Technology: Offers fast transition times and high fan-out capability, making it suitable for high-frequency applications.
• Wide Operating Voltage Range: The device operates reliably across a supply voltage range of 2 V to 6 V, providing flexibility in diverse power environments.
• Low Power Consumption: Features static power dissipation typical of CMOS devices, significantly reducing overall system power demand.
• High Noise Immunity: The HC family provides excellent noise margin, ensuring reliable operation even in noisy industrial or consumer environments.

Technical Specifications:

• Logic Type: Quad 2-Input AND Gate
• Supply Voltage Range (V_CC): 2 V to 6 V
• Output Current (I_OH/I_OL): ±4 mA at V_CC = 4.5 V
• Maximum Propagation Delay (t_pd): Typically 10 ns (at V_CC = 5 V)
• Input Leakage Current (I_I): ±100 nA max
• Operating Temperature Range: −40°C to +85°C (Commercial/Industrial)

Mechanical Specifications:

• Package Type: DIP-14 (Dual In-line Package, Through-Hole)
• Material: Plastic Encapsulation
• Pin Pitch: 2.54 mm (0.1 inch)
• ESD Protection: Exceeds 2000 V using the Human Body Model (HBM)

Dimensions:

• Body Length: ≈ 19.3 mm
• Body Width: ≈ 6.4 mm
• Row Spacing: 7.62 mm (0.3 inch)
• Weight: ≈ 1.0 g

Pinout and Wiring:

• Pin 1, 2, 4, 5, 9, 10, 12, 13 (Inputs/Outputs): These pins serve as the inputs (A and B) and outputs (Y) for the four independent AND gates.
• Pin 7 (GND): Connect this pin to the circuit ground (0 V).
• Pin 14 (V_CC): Connect this pin to the positive power supply (2 V to 6 V).
• Wiring Note: Therefore, always tie any unused inputs to V_CC or GND to prevent floating inputs and ensure stable operation, avoiding potential oscillation.

Datasheet Reference:

• Download Texas Instruments SN74HC08 Datasheet

Commonly Used in:

• Digital Interfacing: Creating basic logic functions and interfacing different voltage logic families.
• Controller Systems: Essential for generating enable signals and control pulses based on multiple conditions.
• DIY and Prototyping: A staple component in hobbyist projects, breadboarding, and educational electronics kits.

Applications:

• Gating and Enabling: Implementing simple logic gates to enable or disable signal paths based on two separate control signals.
• Data Selection: Creating basic multiplexer or demultiplexer circuits when combined with other logic gates.
• Clock Generation: Consequently, designers use it in conjunction with other components to sequence and control digital clock signals.
• Security Systems: Combining signals from two different sensors (A AND B) to trigger an alarm state.

Equivalent Models:

• CD74HC08 (RCA/Intersil): A functionally identical part from the High-Speed CMOS family, often used as a direct replacement.
• 74HCT08: A high-speed CMOS version with TTL input compatibility, however, it maintains the same core AND gate logic function.
• MC74HC08N (ON Semi): Another standard cross-reference part number for the same quad 2-input AND gate specification.

Package Includes:

• 1 x SN74HC08N Quad 2-Input AND Gate IC DIP-14