Description
The 74LS47 accepts four lines of BCD (8421) input data, generates their complements internally and decodes the data with seven AND/OR gates having open-collector outputs to drive indicator segments directly. Each segment output is guaranteed to sink 24 mA in the ON (LOW) state and withstand 15V in the OFF (HIGH) state with a maximum leakage current of 250 mA. Auxiliary inputs provided blanking, lamp test and cascadable zero-suppression functions.
Features:
- Open-collector outputs
- Drive indicator segments directly
- Cascadable zero-suppression capability
- Lamp test input
- Underwriters Laboratory (UL) recognized
SPECIFICATIONS:
- Supply Voltage(Maximum):7V
- Supply Voltage(Recommended):5.25V
- Operating Free air temperature range:0ºC to 70ºC
