74LS09 DIP Quad 2-Input AND Gate Open Collector IC (14-Pin TTL Logic IC)

The 74LS09 DIP Quad 2-Input AND Gate Open Collector IC is a TTL logic integrated circuit that contains four independent 2-input AND gates with open collector outputs in a 14-pin Dual Inline Package (DIP). Built using Low Power Schottky (LS) TTL technology, it is designed for applications requiring wired-OR configurations, higher voltage interfacing, and external load driving.

The open collector outputs require external pull-up resistors for proper operation, allowing the IC to interface with different voltage levels and combine multiple outputs on a common line. The 74LS09 is widely used in bus systems, signal control, industrial automation, digital logic circuits, and embedded control applications.

Key Features -

• Four independent 2-input AND gates

• Open collector outputs

• TTL compatible logic levels

• Supports wired-OR configurations

• External pull-up resistor required

• Low Power Schottky (LS) technology

• 14-pin DIP package

• High-speed switching performance

• Compatible with 74LS series logic ICs

• Suitable for digital control and interfacing applications

Specifications -

• Product type - TTL Logic IC

• IC model - 74LS09

• Logic function - Quad 2-Input AND Gate with Open Collector Outputs

• Logic family - 74LS TTL

• Package type - DIP-14

• Operating voltage - 5V DC

• Input type - TTL Compatible

• Output type - Open Collector

• Mounting type - Through Hole (THT)

• Operating temperature - Standard Commercial Range

Applications -

• Digital logic circuits

• Signal control systems

• Wired-OR logic implementations

• Bus interface circuits

• Level shifting applications

• Industrial automation systems

• Embedded systems

• Relay and LED driver circuits

• Prototype PCB development

• DIY electronics projects