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 µA. Auxiliary inputs provided blanking, lamp test and cascadable zero-suppression functions.
• Open-collector outputs
• Drive indicator segments directly
• Cascadable zero-suppression capability
• Lamp test input
|Supply Voltage (VCC)||7 V|
|Input Voltage (VI)||7 V|
|Operating free-air temperature range||0°C to +70°C|
|Storage temperature range||–65°C to +150°C|
* product image for illustration purposes only. actual product may vary.