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54LS49 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 54LS49
部品説明 BCD to 7-Segment Decoder
メーカ National Semiconductor
ロゴ National Semiconductor ロゴ 

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54LS49 Datasheet, 54LS49 PDF,ピン配置, 機能
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

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