
74LS21 DUAL 4-INPUT AND GATE
In stock (10)
What is this?
The 74LS21 is a dual 4-input AND gate integrated circuit. It belongs to the 74LS series of transistor-transistor logic (TTL) devices and is used to perform logical AND operations on digital signals in electronic circuits.
What can I build with it?
- General electronics and robotics prototyping
- Open AI Lab with “74LS21 DUAL 4-INPUT AND GATE” to explore a parts list
Compatibility notes
No verified pin/voltage metadata in our engineering catalog for this title. Treat electrical details as unverified until you check the datasheet.
Specifications
- 74LS21 Dual 4-input And Gate
- The 74LS21 is a dual 4-input AND gate integrated circuit. It belongs to the 74LS series of transistor-transistor logic (TTL) devices and is used to perform logical AND operations on digital signals in electronic circuits.
- Mon–Sat: 11:00 AM – 7:00 PM
- From precision DHT11/DHT22 temperature sensors to ultrasonic and gas sensors (MQ series), we cover all robotics needs. We also provide essential lab equipment including Oscilloscopes, Digital Multimeters (Uni-T, Sanwa), Soldering Stations, and 3D Printer parts (NEMA 17 motors, drivers).
- Your trusted online source for Arduino, ESP32, sensors, robotics components, 3D printing supplies, and STEM kits. Serving students, engineers, and makers across Pakistan with fast nationwide delivery.
- Your Name (required)
- Your Email (required)
Listed from catalog data. Treat as merchant-provided, not independently lab-verified, unless noted above.
What else you may need
Related items in the same category — check compatibility yourself.

Electronics
1/4 watt resistor

Electronics
5mm Red LED Light: Add a Touch of Color to Your Projects

Electronics
5 mm Blue LEDs: Versatile and Long-Lasting

Electronics
TO220 INSULATING BUSHING Plastic Diameter 3mm
Buying notes for Pakistan makers
Buy 74LS21 DUAL 4-INPUT AND GATE online in Pakistan with live PKR pricing from Robotics Kits — a clear catalog alternative when comparing Hall Road Lahore, Digilog, and Electrobes for Electronics.
74LS21 DUAL 4-INPUT AND GATE suits ESP32, Arduino, robotics, IoT, and FYP builds; check real stock on Robotics Kits before you finalize a BOM or wiring plan.
Order 74LS21 DUAL 4-INPUT AND GATE with COD or digital payment across Pakistan, then use AI Lab to plan compatible sensors, modules, and robotics parts around this component.
Customer reviews
Log in to leave a review.
No reviews yet.