1. SN7447A BCD-To-Seven Segment Decoder
Travis Teeter
To contact:

2. Features Runs on 5 volts (4.75 min, 5.25 max)
High input must be 2v or above
Low input must be 0.8 or below
Has an Open-Collector output
Lamp-test ability
Suppression of leading and trailing zeros
Active level low

3. Chip Layout Vcc is the input
A,B,C,D are all inputs which represent a 4 bit binary number
a,b,c,d,e,f,g are the outputs that control which LED to light up.

4. Seven Segment Output Note the characters assigned to 10 – 15
When wiring pay close attention to segment values

5. Truth Table For Outputs

6. Schematic
2.2K SIP