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DM74LS47N Datasheet

  • DM74LS47N

  • BCD to 7-Segment Decoder/Driver with Open-Collector Outputs

  • FAIRCHILD

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DM74LS47 BCD to 7-Segment Decoder/Driver with Open-Collector Outputs
October 1988
Revised March 2000
DM74LS47
BCD to 7-Segment Decoder/Driver with
Open-Collector Outputs
General Description
The DM74LS47 accepts four lines of BCD (8421) input
data, generates their complements internally and decodes
the data with seven AND/OR gates having open-collector
outputs to drive indicator segments directly. Each segment
output is guaranteed to sink 24 mA in the ON (LOW) state
and withstand 15V in the OFF (HIGH) state with a maxi-
mum leakage current of 250
碌A(chǔ).
Auxiliary inputs provided
blanking, lamp test and cascadable zero-suppression func-
tions.
Features
s
Open-collector outputs
s
Drive indicator segments directly
s
Cascadable zero-suppression capability
s
Lamp test input
Ordering Code:
Order Number
DM74LS47M
DM74LS47N
Package Number
M16A
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Logic Symbol
Connection Diagram
V
CC
=
Pin 16
GND
=
Pin 8
Pin Descriptions
Pin Names
A0鈥揂3
RBI
LT
BI/RBO
a 鈥揼
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) (Note 1)
Note 1:
OC鈥擮pen Collector
Description
漏 2000 Fairchild Semiconductor Corporation
DS009817
www.fairchildsemi.com

DM74LS47N 產(chǎn)品屬性

  • Fairchild Semiconductor

  • Decoder / Driver

  • LS

  • 5.25 V

  • 4.75 V

  • + 70 C

  • Through Hole

  • PDIP-16

  • Rail

  • 0 C

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