Description
Description
The 7403 is a digital logic integrated circuit that contains four independent 2-input NAND gates with open-collector outputs in a single package. Unlike the standard 7400, the 7403 requires external pull-up resistors, allowing flexible interfacing with higher-voltage systems and wired-AND configurations. Operating from a 5V supply, it is compatible with standard TTL logic levels and is commonly used for logic control, signal gating, level shifting, and driving external loads such as LEDs and relays.
Features
- Quad 2-input NAND gate configuration
- Open-collector outputs for flexible interfacing
- Supports wired-AND logic functions
- Standard TTL logic compatibility
- Single 5V supply operation
- External pull-up resistor compatibility
- Can interface with higher-voltage circuits
- Suitable for driving LEDs and relays
- DIP-14 through-hole package
- Breadboard friendly design
- Reliable TTL switching performance
- Useful for logic expansion applications
- Supports custom output voltage levels
- Ideal for educational and industrial digital systems
Specifications
- 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: 5V
- Input Logic Levels: TTL Compatible
- Propagation Delay (Typical): 15ns
- Maximum Output Sink Current: 16mA
- Package Type: 14-Pin DIP
- Mounting Type: Through-Hole
- Operating Temperature Range: 0C to +70C
- Application Type: Digital Logic and Level Interfacing
Links
- 3D Model
- Datasheet
Tutorials
- 7403 74LS03 Quad NAND
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