SN7447N BCD to 7-Segment Decoder / Driver IC

The SN7447N BCD to 7-Segment Decoder/Driver is a TTL logic IC designed to convert binary-coded decimal (BCD) inputs into corresponding outputs for 7-segment LED displays. It is specifically built to drive common anode displays, making it a popular choice in digital clocks, counters, calculators, and numeric display circuits. This IC accepts a 4-bit BCD input and decodes it into seven active-LOW output signals that illuminate the appropriate segments to display digits 0–9. The SN7447N also includes lamp test (LT), blanking input (BI), and ripple blanking (RBO/RBI) features, allowing efficient control of multiple displays and reduced power consumption in multi-digit systems.

Housed in a standard 16-pin DIP package, the SN7447N is easy to use on breadboards and PCBs, making it ideal for students, hobbyists, and professional electronic designs requiring reliable numeric display control.

Specification :

• IC Type : BCD to 7-Segment Decoder/Driver
• Part Number : SN7447N
• Display Type : Common Anode
• Logic Family : TTL (74 Series)
• Input Type : 4-bit BCD
• Output Type : Active LOW
• Supply Voltage : 5V
• Package Type : DIP-16
• Operating Temperature : 0°C to 70°C