The 74HC42 decodes a 4-bit BCD input into one of ten outputs, useful for driving displays, selecting channels and digital-logic projects.
Key Features
- BCD-to-decimal (1-of-10) decoder
- High-speed CMOS
- Standard 16-pin DIP
- 3–6V operation
- Handy for counters/displays
Specifications
| Function | 4-to-10 BCD decoder |
| Package | DIP-16 |
| Voltage | 2–6V |
Popular Project Ideas
- Decade counter displays
- Channel selection
- Digital logic projects
- Learning decoders
Available now at Arduino Corner, Rawalpindi (Shaheen Market, DAV College Road) and delivered nationwide with cash on delivery. A favourite of engineering students in Rawalpindi & Islamabad for school, college and final-year projects.






