HLF SN74LS47N
The SN74LS47N is a seven segment digital tube decoder / driver with low output efficiency (common anode digital tube). The decoding of BCD code into digital segment code can directly drive the display of digital tube, thus simplifying the program and saving the number of I/O of MCU. The chip is equipped with zero-extinguishing input and output control (RBI and RBO) circuit, digital tube quality detection control (LT) circuit and light-extinguishing control (BI) circuit.FEATURES
● Direct drive common anode digital tube● Fully compatible with TTL/DTL input and output logic level
● Convert BCD code to digital display function
● seven sections of figures “6” and “9” show "b" and "q" form
● Open drain output, withstanding voltage up to 15V
● Package : DIP16, SOP16
● Product
APPLICATIONS
● Driving common anode digital tube, counter and so on● Digital logic drivers, such as latches
● Other application areasBattery-powered equipment
● Package and Pin Assignment Pin NO 1 2 3 4 5 6 7 8 SOP16 or DIP16 Pin Definition Pin NO Input B 16 Input C 15 LT 14 BI/RBO 13 RBI 12 Input D 11 Input A 10 Supply GND 9 Pin Definition Supply VCC Output f Output g Output a Output b Output c Output d Output e HLF (1/6) SN74LS47N Ver 1.00
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ABSOLUTE MAXIMUM RATINGS
Item SymbolMAXIMUM RATINGS
Unit Supply voltage VCC 7 V Input voltage VI 7 V Output current(off) Io(off) 1 mA Power dissipation PD 500 mW Operating temperature TA 0-70 ℃ Storage temperature TS -65-150 ℃ welding temperature TW 260 ℃,10s Note: the limit parameter is the limit value that cannot be exceeded under any condition.