DM74LS247

DM74LS247 BCD to 7-Segment Decoder/Driver with Open-Collector Outputs March 1998 DM74LS247 BCD to 7-Segment Decoder/Driver with Open-Collector Outputs General Description The ’LS247 has active LOW open-collector outputs guaranteed to sink 24 mA. It has the same electrial characteristics and pin connections as the ’LS47. The only difference is that the ’LS247 will light the top bar (segment a) for numeral 6 and the bottom bar (segment d) for number 9. For detailed description and specifications please refer to the ’LS47 data sheet. Connection Diagram Dual-In-Line Package Logic Symbol DS009822-2 VCC = Pin 16 GND = Pin 8 DS009822-1 Order Number DM74LS247M or DM74LS247N See Package Number M16A or N16E Pin Names A0–A3 RBI LT BI/RBO a–g BCD Inputs Ripple Blanking Input (Active LOW) Lamp Test Input (Active LOW) Blanking Input (Active LOW) or Ripple Blanking Output (Active LOW) Segment Outputs (Active LOW) Description © 1998 Fairchild Semiconductor Corporation DS009822 www.fairchildsemi.com Absolute Maximum Ratings (Note 1) Supply Voltage Input Voltage 7V 7V Operating Free Air Temperature Range Storage Temperature Range 0˚C to +70˚C −65˚C to +150˚C Recommended Operating Conditions Symbol VCC VIH VIL IOH IOL TA Supply Voltage High Level Input Voltage Low Level Input Voltage High Level Output Current BI/RBO Low Level Output Current Free Air Operating Temperature 0 Parameter Min 4.75 2 0.8 −50 24 70 Nom 5 Max 5.25 Units V V V µA mA ˚C Note 1: The “Absolute Maximum Ratings...