DM74LS47

Supply Voltage . . . . .. . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . ..  7V
Input Voltage . . . . .. . . . . . . . . . . . .. . . . . . . . . .. . . . .. . . . . . . .  . . .. . . . . . . . . . . . . 7V
Operating Free Air Temperature Range . . . . .. . . . . . . . . . . . .. . . . . . . . 0°C to +70°C
Storage Temperature Range . . . . .. . . . . . . . . . . . .. . . . . . .  . . . . . . -65°C to +150°C

Note 6: The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The "Recommended Operating Conditions" table will define the conditions for actual device operation.

The DM74LS47 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.