DM74LS47N ,BCD TO 7-SEGMENT DECODER/DRIVERFeatures
The 'LS47 accepts four lines of BCD (B421) input data, gen- l Open-collector outputs
..
DM74LS47N ,BCD TO 7-SEGMENT DECODER/DRIVER
DM74LS47N ,BCD TO 7-SEGMENT DECODER/DRIVER
DM74LS47N ,BCD TO 7-SEGMENT DECODER/DRIVER
DM74LS491AN ,7 V, 10-bit counterNational
Semiconductor
DM54LS491A/DM74LS491A
10-Bit Counter
DM74LS491N ,10-Bit CounterDM54LS491/74LS49110-BitCounterJuly1989DM54LS491/74LS49110-BitCounterGeneralDescription
DS2411 ,Silicon Serial Number with VFEATURES PIN CONFIGURATION Unique, Factory-Lasered and Tested 64-Bit 3 Registration Number (8-B ..
DS2411 ,Silicon Serial Number with VPIN DESCRIPTION *The DS2411X is RoHS qualified and comes in tape and reel. PIN NAME FLIP SOT23 ..
DS2411P ,Silicon Serial Number with VCC InputPIN DESCRIPTIONPART TEMP RANGE PACKAGEPINDS2411R/ SOT23-3,NAME FLIP-40C to +85CSOT23 TSOCT&R Tape ..
DS2411P+ ,Silicon Serial Number with VCC InputFEATURES PIN CONFIGURATION Unique, Factory-Lasered and Tested 64-Bit 3 Registration Number (8-B ..
DS2411R+T&R ,Silicon Serial Number with VCC InputPIN DESCRIPTION *The DS2411X is RoHS qualified and comes in tape and reel. PIN NAME FLIP SOT23 ..
DS2411R+U ,Silicon Serial Number with VCC Input19-6131; Rev 11/11 DS2411 Silicon Serial Number with V InputCC
DM74LS47N
BCD TO 7-SEGMENT DECODER/DRIVER
National
Semiconductor
54LS47/DM74LS47
BCD to 7-Segment Decoder/Driver
General Description Features
The 'LS47 accepts four lines of 800 (8421) input data, gen- ll Open-collector outputs
erates their tromplsments internally and decodes the data a Drive indicator segments directly
with seven AND/OR gates having open-collector outputs to n Cascadable zero-suppression capability
drive indicator segments directly. Each segment output is u Lamp test input
guaranteed to sink 24 mA in the ON (LOW) state and with-
stand 15V in the OFF (HIGH) state with a maximum leakage
current of 250 " Auxiliary inputs provided blanking, lamp
test and cascadable zero-suppression functions. Also see
the 'LS47 data sheet.
Connection Diagram
Dual-ln-Llne Package
At)--) 16 '-va:
M- 2 15 .-t-
-CT- 3 14 --ii
iT7ttTit5-- 4 13 -ii
tTift- 5 12 -r,
A2- 6 lt-?,
A3- 7 Ity-ii
tml)-- 8 9 -3
TL/F/9317-1
Order Number 54LS47DMOB, ti4LS47FMt2B,
DM74LS47M or DM74LS47N
See NS Package Number J18A, MIGA, N16E or W16A
Pln Names Descrlptlon
AO-M BCD Inputs
Atm Ripple Blanking Input (Active LOW)
LT Lamp Test Input (Active LOW)
Bl/RBO Blanking Input (Active LOW) or
Ripple Blanking Output (Active LOW)
ii-a 'Segment Outputs (Active LOW)
'OG-Open Collector
Absolute Maximum Ratings (Note)
It MllltaryIAerospace specified devices are required,
please contact the National Sttmlttondutttor Sales
OfflttefDhtrlttutors for avallablllty and tmetgfleatlons.
Supply Voltage 7V
Input Voltage 7V
Note: The "Absolute Maximum Ratings" are those values
beyond which the safety of the device cannot be guaran-
teed. The device should not be operated at these limits. The
parametric values detitttad in the "Electrical Characteristics "
table are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions" table will define
Operating Free Air Temperature Range
DM74LS
Storage Temperature Range
- 55°C to + 125°C
ty'C to + 70'C
- 65''C to + 150°C
Recommended Operating Conditions
the conditions for actual device operation.
Symbol Parameter 54LS47 DMNSL” Unlts
Mln Nom Max Mln Nom Max
Vcc Supply Voltage 4.5 5 5.5 4.75 5 5.25 V
ViH High Level Input Voltage 2 2 V
Ihr. Low Level Input Voltage 0.7 0.8 V
IOH High Level Output Current _ _
@ 15V = Von‘ 50 250 WA
IOL Low Level Output Current 12 24 mA
TA Free Air Operating Temperature - 55 1 25 o 70 ''C
'OFF state at ii-ii.
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions Mln Typ Max Unlts
(Note 1)
V] Input Clamp Voltage Vcc = Min, 1. = --18 mA -1.5 V
VOH High Level VCC = Min, IOH = Max, 54LS 2.4 V
Output Voltage 1ht. = Max DM74 2.7 3.4
VOL Low Level Vcc = Min, IOL = Max, 54LS 0.4
OutputVoltage VIH = Min DM74 0.35 0.5 V
lot. = 4 mA, Vcc = Min DM74 0.25 0.4
I. lnputCurrem 48 Max Vcc = Max, V. = 10V 100 PA
Input Voltage
“H High Level InputCurrent Vcc = Max, VI = 2.7V 20 p.A
IIL Low Level Input Current Voc = Max, Vt = 0.4V -0.4 mA
los Short Circuit Voc = Max 54LS -0.3 --2,0 m A
Output Current (Note 2), kos at BI7R86 DM74 --0.3 _ AO
Ice Supply Current Voc = Max 13 mA
Non t: All typicals are at Vcc - 5V, TA = 25'C.
Note 2: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Switching Characteristics at voc = +s.ov, TA = +25°c
th. = 865.0
Symbol Parameter Condltlons A. == " pF Units
Mln Max
tpLH Propagation Delay 100 ns
tPHL An to ii-ii 100
tpLH Propagation Delay 100 ns
tpHL m to " 100
CT - HlGH.AO-A3 - LOW
Functional Description
The 'LS47 decodes the input data in the pattern indicated in
the Truth Table and the segment identlfittatitm Illustration. It
the input data is decimal zero, a LOW signal applied to the
FE blanks the display and causes a multidigit display. For
example, by grounding the W of the highest order decoder
and connecting its Bl7AfR5 to m of the next lowest order
decoder, etc., leading zeros will be suppressed. Similarly, by
grounding R-ty of the lowest order decoder and connecting
its Bl/RBO to "rirt of the next highest order decoder, Me.,
trailing zeros will be suppressed. Leading and trailing zeros
can be suppressed simultaneously by using external gates,
i.e.: by driving ttTil of a intermediate decoder from an OR
gate whose inputs are BVHFO of the next highest and low-
est order decoders. B17AtR5 also serves as an untxtnditiom
al blanking input. The internal NAND gate that generates
the Atit5 signal has a resistive pull-up, as opposed to a
totem pole, and thus BI/RBG can be forced LOW by exter-
nal means, using wired-collector logic. A LOW signal thus
applied to trmtR5 turns off all segment outputs. This blank-
ing feature can be used to control display intensity by vary-
ing the duty cycle of the blanking signal. A LOW signal ap-
plied to W turns on all segment outputs, provided that
Bl/Fl35 is not forced LOW.
Logic Diagram
RlPPLE-BLEAKING
LAHP-TEST
BLANKING INPUT MI
RlPPLE-BLANKING 'i
OUTPUT
OUTPUT
Numerical Designations-Results" Displays
0 I 8 9
IUI li eiélinsiél iii
TL/F/9817-4
TL/FN817-3
Logic Symbol
1 2 6 7 3 5
A0 A1 A2 M LT RBI
13121110 91514 4
TL/Ff9817-it
Vcc = Pin16
GND = Pine
Truth Table
Decimal
or Inputs Outputs Note
Funtttittn If ABI" A3 A2 A1 A0 almao a E E a ii , 5
o H H L L L L H L L L L L L H 1
1 H x L L L H H H L L H H H H 1
2 H x L L H L H L L H L L H L
3 H x L L H H H L L L L H H L
4 H x L H L L H H L L H H L L
5 H x L H L H H L H L L H L L
e H x L H H L H H H L L L L L
7 H x L H H H H L L L H H H H
e H x H L L L H L L L L L L L
9 H x H L L H H L L L H H L L
10 H x H L H L H H H H L L H L
11 H x H L H H H H H L L H H L
12 H x H H L L H H L H H H L L
13 H x H H L H H L H H L H L L
14 H x H H H L H H H H L L L L
15 H x H H H H H H H H H H H H
E x x x x x x L H H H H H H H 2
A-trt H L L L L L L H H H H H H H a
LT L x x x x x H L L L L L L L 4
Note 1: B7PTrBR5 is wire-AND logic serving as blanking input (tTI) and/or 'ippka-blarNng output (R36). The blanking out (E) must be open or held at a HIGH level
when output functions 0 through 15 are desired. and rippIe-blanking input (W) must be open or at a HIGH level it blanking or a decimal O is not desired. X = input
may be HIGH or LOW.
Note 2: When a LOW level is applied to the blanking input (forced condition) all segment outputs go to a HIGH level regardless ot the state of any other input
condition.
N02. s.. When tipple-blanking input (W) and inputs AO, Al, A2 and M are LOW level, with the lamp test input at HIGH level, all segment outputs go to a HIGH
level and the dpple-blanking output (HBO) goes to a LOW level (response condition).
Nola 4: When the blanking input/rippltstolanking output (Bl/RBG) is open or held at a HIGH level. and a LOW level is applied to lamp test input, all segment outputs
go to 3 LOW level.
This datasheet has been :
www.ic-phoenix.com
Datasheets for electronic components.
National Semiconductor was acquired by Texas Instruments.
corp/docs/irwestor_relations/Pr_09_23_201 1_national_semiconductor.html
This file is the datasheet for the following electronic components:
54LS47 - product/54ls47?HQS=T|-nuII-nulI-dscatalog-df-pf-nu||-wwe
54LS47FMQB - product/54Is47fmqb?HQS=T|-nu|I-nu|I-dscatalog-df-pf-null-wwe
54LS47DMQB - product/54Is47dmqb?HQS=TI—nu||-nu|I-dscataIog-df-pf-null-wwe
54LS47 - product/54Is47?HQS=TI-nuII-null-dscatalog-df—pf—nuII-wwe
DM74LS47N - product/dm74ls47n?HQS=T|-nu|I-nu|I-dscatalog-df-pf-null-wwe
DM74LS47N - product/dm74ls47n?HQS=TI-nu|I-nu|I-dscatalog-df-pf-nulI-wwe
DM74LS47M - product/dm74ls47m?HQS=T|—nulI-null-dscatalog-df—pf—nuIl-wwe
54LS47DMQB - product/54Is47dmqb?HQS=TI—nuIl—nu|I—dscataIog-df-pf-null-wwe
54LS47FMQB - product/54ls47fmqb?HQS=T|—nu||-nu|l-dscataIog-df-pf-null-wwe
DM74LS47M - product/dm74ls47m?HQS=T|—nulI-null-dscatalog-df—pf—nuIl-wwe
DM74LS47N - product/dm74ls47n?HQS=T|-nu|I—nu|I-dscatalog-df-pf-nulI-wwe
DM74LS47M - product/dm74ls47m?HQS=T|—nuII-null-dscatalog-df—pf—nuII-wwe
