7408 - Quad AND Gate

The 7408 is a quad 2-input AND gate integrated circuit (IC) in the 7400 series. It contains four independent AND gates, each with two inputs and one output. The IC operates using standard 5V power and is widely used in digital electronics for performing logical AND operations. It's known for reliability and compatibility with other TTL components.

SN74HC08N (High-Speed CMOS) Quad AND Gate in PDIP-14 package
Fig.: SN74HC08N (High-Speed CMOS) Quad AND Gate in PDIP-14 package
SN74LS08N (Low-Power Schottky) Quad AND Gate in PDIP-14 package
Fig.: SN74LS08N (Low-Power Schottky) Quad AND Gate in PDIP-14 package

Features/Specifications

Number of Gates 4
Supply Voltage 2V to 6V
Max Output Current ±25 mA
Propagation Delay ~8 ns
Operating Temperature -40°C to +85°C

📄 74HC08 datasheet (125 kB)
📄 SN54LS08 datasheet (1544 kB)

Connections

Terminal diagram of the 7408
Fig.: Terminal diagram of the 7408
Pin Number Name Description
1 1A Input A for AND Gate 1
2 1B Input B for AND Gate 1
3 1Y Output Y for AND Gate 1
4 2A Input A for AND Gate 2
5 2B Input B for AND Gate 2
6 2Y Output Y for AND Gate 2
7 GND Ground
8 3Y Output Y for AND Gate 3
9 3A Input A for AND Gate 3
10 3B Input B for AND Gate 3
11 4Y Output Y for AND Gate 4
12 4A Input A for AND Gate 4
13 4B Input B for AND Gate 4
14 VCC Supply Voltage
Last edited by Christian Grieger on 2025-05-10
←