dm74ls247 Fairchild Semiconductor, dm74ls247 Datasheet

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dm74ls247

Manufacturer Part Number
dm74ls247
Description
7-segment Decoder/driver With Open-collector Outputs
Manufacturer
Fairchild Semiconductor
Datasheet
© 1998 Fairchild Semiconductor Corporation
DM74LS247
BCD to 7-Segment Decoder/Driver with Open-Collector
Outputs
General Description
The ’LS247 has active LOW open-collector outputs guaran-
teed to sink 24 mA. It has the same electrial characteristics
and pin connections as the ’LS47. The only difference is that
Connection Diagram
Order Number DM74LS247M or DM74LS247N
See Package Number M16A or N16E
Dual-In-Line Package
LT
BI/RBO
a–g
A0–A3
RBI
Pin Names
DS009822
DS009822-1
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
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.
Logic Symbol
V
GND = Pin 8
CC
= Pin 16
DS009822-2
www.fairchildsemi.com
March 1998

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dm74ls247 Summary of contents

Page 1

... The ’LS247 has active LOW open-collector outputs guaran- teed to sink 24 mA. It has the same electrial characteristics and pin connections as the ’LS47. The only difference is that Connection Diagram Dual-In-Line Package DS009822-1 Order Number DM74LS247M or DM74LS247N See Package Number M16A or N16E Pin Names A0–A3 RBI LT BI/RBO a– ...

Page 2

Absolute Maximum Ratings Supply Voltage Input Voltage Recommended Operating Conditions Symbol Parameter V Supply Voltage CC V High Level Input Voltage IH V Low Level Input Voltage IL I High Level Output Current BI/RBO OH I Low Level Output Current ...

Page 3

... Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Molded Package (M) 16-Lead Molded Dual-In-Line Package (N) Order Number DM74LS247M Package Number M16A Order Number DM74LS247N Package Number N16E 3 www.fairchildsemi.com ...

Page 4

... A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system affect its safety or effectiveness. Fairchild Semiconductor Hong Kong Ltd. Fax: +49 (0) 1 80-530 85 86 13th Floor, Straight Block, Email: europe ...

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