(PDF) 54LS49 Datasheet - BCD to 7-Segment Decoder

Número de pieza	54LS49
Descripción	BCD to 7-Segment Decoder
Fabricantes	National Semiconductor
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No Preview Available ! 54LS49 BCD to 7-Segment Decoder General Description The 54LS49 translates four lines of BCD (8421) input data into the 7-segment numeral code as shown in the Function Table It has open-collector outputs and is logically the 14- pin verson of the ’48 without the lamp test and ripple blank- ing features Also see the ’LS249 data sheet Connection Diagram Dual-In-Line Package Logic Symbol June 1989 TL F 10204 – 1 Order Number 54LS49DMQB or 54LS49FMQB See NS Package Number J14A or W14B VCC e Pin 14 GND e Pin 7 Pin Names A0 – A3 BI a–g Description BCD Inputs Blanking Input (Active LOW) Segment Outputs (Active HIGH) Numerical Designations Resultant Displays TL F 10204 – 2 TL F 10204 – 3 C1995 National Semiconductor Corporation TL F 10204 RRD-B30M105 Printed in U S A 1 page

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PDF 54LS49 Data sheet ( Hoja de datos )