7403 Quad 2-Input NAND Gate Logic IC, Open-Collector

The 7403 is a TTL logic IC that integrates four independent 2-input NAND gates with open-collector outputs in a single package.
It performs standard NAND logic functions while allowing wired-AND configurations through external pull-up resistors.
The device operates from a single 5 V supply and is compatible with standard TTL logic levels.
Its open-collector outputs enable interfacing with higher-voltage loads and external devices.
Typical applications include logic control, signal gating, level interfacing, and driving indicator loads.

• Quad NAND Gate Configuration providing four 2-input logic gates

• Open-Collector Outputs supporting wired-AND logic functions

• TTL Logic Family compatible with standard TTL levels

• Single 5 V Supply Operation for digital systems

• External Pull-Up Compatibility enabling flexible output interfacing

• Through-Hole DIP Package for breadboard and PCB use

• Model | 7403

• Device Type | Quad 2-Input NAND Gate IC

• Output Type | Open-Collector

• Logic Family | TTL

• Number of Gates | 4

• Inputs per Gate | 2

• Supply Voltage | 5 V

• Propagation Delay (Typical) | 15 ns

• Output Sink Current (Max) | 16 mA

• Operating Temperature Range | 0 °C to 70 °C

• Package Type | 14-Pin DIP

• 3D Model
• Datasheet