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DM74LS248N Datasheet

  • DM74LS248N

  • IC LS SERIES, SEVEN SEGMENT DECODER/DRIVER, TRUE OUTPUT, PDI...

  • 5頁

  • NSC

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DM74LS248 BCD to 7-Segment Decoder with 2 kX Pull-Up Resistors
February 1992
DM74LS248
BCD to 7-Segment Decoder with 2 kX Pull-Up Resistors
General Description
The 鈥橪S248 has active HIGH outputs with internal 2 kX pull-
up resistors It has the same electrical characteristics and
pin connections as the 鈥橪S48 The only difference is that the
鈥橪S248 will light the top bar (segment a) for numeral 6 and
the bottom bar (segment d) for numeral 9 For detailed de-
scription and specifications please refer to the 鈥橪S48 data
sheet
Connection Diagram
Dual-In-Line Package
Logic Symbol
TL F 10181 鈥?2
V
CC
e
Pin 16
TL F 10181 鈥?1
GND
e
Pin 8
Order Number DM74LS248M or DM74LS248N
See NS Package Number M16A or N16E
Pin Names
A0鈥揂3
RBI
LT
BI RBO
a鈥揼
Description
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 HIGH)
C
1995 National Semiconductor Corporation
TL F 10181
RRD-B30M105 Printed in U S A

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