Pin configuration
| Pin no. | Pin name | Description |
| 1,2,6,7 | B,C,D,A | BCD input of the IC |
| 3 | Display test/Lamp test | To test the display LEDs |
| 4 | Blank input | To turn-off the LEDs of the display |
| 5 | Store | Store or strobe a BCD code |
| 8 | Gnd | Ground |
| 9,10,11,12,13,14,15 | e,d,c,b,a,g,f | 7-segment outputs |
| 16 | Vcc | Positive supply input |
Features
- Lamping test and blanking capability.
- Low logic circuit power dissipation.
- Input latches for BCD code storage.
- Balanced propagation delays and transition time.
- High output sourcing capability.
- Lamp intensity modulation capability.
- Rigid structure.
Technical Specification
- Supply voltage ranges from 3v to 18v
- Set-up-time is 150, 70, and 40ns at 5v, 10v, and 15v respectively
- Strobe pulse width is 400, 160, and 100ns at 5v, 10v, and 15v respectively
- Hold time is zero
- 100% tested for quiescent current at 20v
- Having high input current of 1uA (max.) at 18v
- Maximum output current sourcing of 25mA
- Operating temperature ranges from -40 °C to 85 °C
- Storage temperature ranges from -65 °C to 150 °C
