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74LS247 Datasheet

  • 74LS247

  • LOW POWER SCHOTTKY

  • 8頁(yè)

  • ONSEMI

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SN74LS247
BCD-to-Seven-Segment
Decoders/Drivers
The SN74LS247 is a BCD-to-Seven-Segment Decoder/Drivers.
The LS247 composes the and with the tails. The LS247 has
active-low outputs for direct drive of indicators.
The LS247 features a lamp test input and have full ripple-blanking
input/output controls. An automatic leading and/or trailing-edge
zero-blanking control (RBI and RBO) is incorporated and an
overriding blanking input (BI) is contained which may be used to
control the lamp intensity by pulsing or to inhibit the output鈥檚 lamp test
may be performed at any time when the BI/RBO node is at high level.
Segment identification and resultant displays are shown below.
Display pattern for BCD input counts above 9 are unique symbols to
authenticate input conditions.
http://onsemi.com
LOW
POWER
SCHOTTKY
鈥?/div>
Open-Collector Outputs Drive Indicators Directly
鈥?/div>
Lamp-Test Provision
鈥?/div>
Leading/ Trailing Zero Suppression
GUARANTEED OPERATING RANGES
Symbol
V
CC
T
A
I
OH
I
OL
V
O(off)
I
O(on)
Parameter
Supply Voltage
Operating Ambient
Temperature Range
Output Current 鈥?High
BI/RBO
Output Current 鈥?Low
BI/RBO
Off鈥揝tate Output Voltage
a鈥揼
On鈥揝tate Output Current
a鈥揼
Min
4.75
0
Typ
5.0
25
Max
5.25
70
鈥?50
3.2
15
24
Unit
V
擄C
16
1
PLASTIC
N SUFFIX
CASE 648
m
A
16
mA
V
mA
1
SOIC
D SUFFIX
CASE 751B
ORDERING INFORMATION
Device
SN74LS247N
SN74LS247D
Package
16 Pin DIP
16 Pin
Shipping
2000 Units/Box
2500/Tape & Reel
漏
Semiconductor Components Industries, LLC, 1999
1
December, 1999 鈥?Rev. 6
Publication Order Number:
SN74LS247/D

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