DM5493AJ ,7 V, decade and binary counterFeatures
I Typical power dissipation
- 90A 145 mW
- 93A 130 mW
I Count frequency 42 MHz
I Alte ..
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DM5493AJ
7 V, decade and binary counter
90A 0 93A
I National
Semiconductor
5490/ DM5490A/DM7490A, DM5493A/DM7493A
Decade, and Binary Counters
General Description
Each of these monolithic counters contains tour master-
slave tlip-flops and additional gating to provide a divide-by-
two counter and a three-stage binary counter for which the
count cycle length is divide-by-five for the 90A and divide-
by-eight for the 93A.
All of these counters have a gated zero reset and the 90A
also has gated set-to-nine inputs for use in BCD nine's com-
plement applications.
To use their maximum count length (decade or four-bit bina-
ry), the B input is connected to the 0A output. The input
count pulses are applied to input A and the outputs are as
described in the appropriate truth table. A symmetrical di-
vide-by-ten count can be obtained from the 90A counters by
connecting the 00 output to the A input and applying the
input count to the B input which gives a divide-by-ten square
wave at output 0A.
Features
I! Typical power dissipation
- 90A 145 mW
- 93A 130 mW
I: Count frequency 42 MHz
" Alternate Military/Aerospace device (5490) is available.
Contact a National Semiconductor Sales Office/Distrib-
utor for specifications.
Connection Diagrams
Dual-ln-Llne Package
" l" "
anomOaOc
11 I10 ' B
'ttrttt Rom
Rem F--,
"l'" Roto Rota;
4's 0 7
NC Voc Rtttt) "9(2)
TL/F/6533-1
Order Number 54900MOB, 5490FMQB, DM5490AJ, DM5490AW or DM7490AN
See NS Package Number J14A, mm or W143
Dual-ln-Llne Package
A uca.
" '13 "
00 GND tht tttt
" I10 9 B
Rom Rotat
On tht
" ls " l’
T" Rott) Rom) NC ttce MS NC
TL/F/6533-2
Order Number DM5493AJ, DM5493AW or DM7493AN
See NS Package Number J14A, NI4A or W143
Absolute Maximum Ratings (Note)
If Mllltary/Aerospace speclfled devlces are required,
please contact the Natlonal Semiconductor Sales
Omce/Dlstrlbutors tor avallabllity and speclflcatlons.
Supply Voltage 7V
Input Voltage 5.5V
Operating Free Air Temperature Range
DM54 and 54 -55'C to + 125°C
DM74 tPC to + 70°C
Storage Temperature Range - 65''C to + 150''C
Recommended Operating Conditions
Note: The "Absolute Maximum Ratings" are those values
beyond which the safety of the device cannot be guaran-
teed. The de vice should not be operated at these limits. The
parametric values defined in the "Electrical Characteristics"
table are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions" table will dgtintt
the conditions for actual device operation.
Symbol Parameter DM5490A DMNSOA Unlts
Min Nom Max Min Nom Max
Vcc Supply Voltage 4.5 5 5.5 4.75 5 5.25 V
VIH High Level Input Voltage 2 2 V
" Low Level Input Voltage 0.8 0.8 V
IOH High Level Output Current --0.8 -0.8 mA
IOL Low Level Output Current 16 16 mA
fCLK 353:: Sequency A O 32 0 32 MHz
B O 16 0 16
tw Pulse Width A 15 15
(Note 5) B 30 30 ns
Reset 15 15
IREL Reset Release Time (Note 5) 25 25 ns
TA Free Air Operating Temperature - 55 125 0 70 "C
SOA Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions Min ("1:5 1) Max Units
ih Input Clamp Voltage VCC = Min, l; = -12 mA -1.5 V
VOH High Level Output VCC = Min, lor, = Max 2 4 3.4 V
Voltage " = Max,le = Min '
VOL Low Level Output Vcc = Min, IOL = Max 0 2 0.4 V
Voltage VIH = Min, " = Max(Note 4) .
I1 InputGurrent @ Max VCC = Max, V. = 5.5V 1 mA
Input Voltage
IIH High Level Input Vcc = Max A 80
Current V. = 2.7V Reset 4O " A
IIL Low Level Input Vcc = Max A -3.2
Current VI = 0.4V Reset -1.6 mA
B -4.8
log Short Circuit Vcc = Max DM54 -20 - 57 m A
Output Current (Note 2) DM74 - 1 8 _ 57
'00 Supply Current Vcc = Max (Note 3) 29 42 mA
Nola 1: All typicais are at Vcc = 5V, TA = 25''C.
Note 2: Not more than one output should be shorted at a time.
Note 3: Ice is measured with all outputs open, both RO inputs grounded following momentary connection to 4.5V, and all other inputs grounded.
Note 4: 0A outputs are tested at 10L = Max plus the limit value of IIL for the B input. This permits driving the B input while maintaining fuII lan-out capability.
Notts 5; TA = 25'C and Vcc = 5V.
V86 0 V06
'90A Switching Characteristics
at Voc = 5V and TA = 25'C (See Section 1 for Test Waveforms and Output Load)
90A 0 93A
R = 4000.
From (Input) L =
Symbol Parameter To IO utput) th. 15 pF Units
Min Max
tMAX Maximum Clock A to GA 32 MHz
Frequency B to ths 16
tpLH Propagation Delay Time
Low to High Level Output A to QA 16 ns
tpHL Propagation Delay Time
High to Low Level Output A to QA 18 ns
tpLH Propagation Delay Time
Low to High Level Output A to tho 48 ns
tpHL Propagation Delay Time
High to Low Level Output A to tho 50 ns
tpLH Propagation Delay Time
Low to High Level Output B to ths 16 ns
tpHL Propagation Delay Time
High to Low Level Output B to the 21 ns
tpLH Propagation Delay Time
Low to High Level Output B to 0° 32 ns
tpHL Propagation Delay Time
High to Low Level Output B to th, 35 ns
tpLH Propagation Delay Time
Low to High Level Output B to tho 32 ns
tpHL Propagation Delay Time
High to Low Level Output B to on 35 ns
tpLH Propagation Delay Time SET-9 to 30 ns
Low to High Level Output QA, tho
tpHL Propagation Delay Time SET-9 to 40 ns
High to Low Level Output th, Go
tpHL Propagation Delay Time SET-O 40 ns
High to Low Level Output Any ta
Recommended Operating Conditions
DM5493A
DM7493A
Symbol Parameter Unlts
Mln Nom Max Min Norn Max
Vcc Supply Voltage 4.5 5 5.5 4.75 5 5.25 V
VIH High Level Input Voltage 2 2 V
" Low Level Input Voltage 0.8 0.8 V
lore High Level Output Current - 0.8 -0.8 mA
IOL Low Level Output Current 16 16 mA
tom te,' grequency A 0 32 0 32 MHz
B 0 16 0 16
tw Pulse Width A 15 15
(Nota 5) B 30 30 ns
Reset 15 15
tREL Reset Release Time (Note 5) 25 25 ns
TA Free Air Operating Temperature - 55 125 0 70 "C
'93A Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions Mln (N351) Max Units
V. Input Clamp Voltage Vcc = Min, II == -12 mA --1.5 V
VOH High Level Output Vcc = Min, IOH = Max 2 4 3.4 V
Voltage " = Max, VlH = Min .
VOL Low Level Output Vcc = lVlin, IOL = Max 0.2 0.4 V
Voltage V.“ = Min, " == Max (Note 4)
ll InputCurrent @ Max Vcc = Max, V. = 5.5V 1 m A
Input Voltage
IlH High Level Input Vcc = Max Reset 40
Current 1h = 2.4V A 80 p. A
IIL Low Level Input Vcc = Max Reset -1.6
Current VI = 0.4V A -3.2 mA
B -3.2
log Short Circuit Vcc = Max DM54 -20 - 57 m A
Output Current (Note 2) DM74 - 18 _ 57
'00 Supply Current Vcc = Max (Note 3) 26 39 mA
Note 1: All typicals are at Veg = w, TA = 25''C.
Note 2: Not more than one output should be shorted at a time.
Note 3: '00 is measured with all outputs open, both R0 inputs grounded following momentary connection to 4.5V and an other inputs grounded.
Note 4: 0A outputs are tested at 10L = Max plus the limit value of kr. for the B input. This permits driving the B input while maintaining full fan-out capability.
Note 5: TA = 25°C and Voc = 5V.
V86 0 V06
90A ° 93A
'93A Switching Characteristics
at Vcc = 5V and TA = 25°C (See Section 1 for Test Waveforms and Output Load)
RL = 4000
From (Input) =
Symbol Parameter To (Output) Ct. " pF Units
Mln Max
fMAx Maximum Clock A to QA 32 MHz
Frequency B to 03 16
tpLH Propagation Delay Time A to 1 6 n s
Low to High Level Output QA
tPHL Propagation Delay Time A to 18 n s
High to Low Level Output QA
tpLH Propagation Delay Time A to 70 ns
Low to High Level Output th:)
tPHL Propagation Delay Time A to 70 n s
High to Low Level Output tho
tpLH Propagation Delay Time B to 16 ns
Low to High Level Output ths
tpHL Propagation Delay Time B to 21 n s
High to Low Level Output ths
tpLH Propagation Delay Time B to 32 n s
Low to High Level Output 03
tpHL Propagation Delay Time B to 35 ns
High to Low Level Output 0.3
tpLH Propagation Delay Time B to 51 ns
Low to High Level Output QD
tpHL Propagation Delay Time B to 51 n s
High to Low Level Output tho
tpHL Propagation Delay Time SET-O
High to Low Level Output to 40 ns
Function Tables (Note D)
90A 90A 93A
BCD Count Sequence BCD BI-Oulnary (b2) Count Sequence
(See Note A) (See Note B) (See Note C)
Count Outputs Count Outputs Count Outputs
00 th, th, 0A 0A 00 th: 03 00 th: 03 0A
0 L L L L 0 L L L L 0 L L L L
1 L L L H 1 L L L H 1 L L L H
2 L L H L 2 L L H L 2 L L H L
3 L L H H 3 L L H H 3 L L H H
4 L H L L 4 L H L L 4 L H L L
5 L H L H 5 H L L L 5 L H L H
6 L H H L 6 H L L H 6 L H H L
7 L H H H 7 H L H L 7 L H H H
8 H L L L 8 H L H H 8 H L L L
9 H L L H 9 H H L L 9 H L L H
10 H L H L
1 1 H L H H
12 H H L L
13 H H L H
14 H H H L
15 H H H H
90A 93A
Rtttttn/Ctturtt Functlon Table Reset/Counl Function Table
Reset Inputs Outputs Reset Inputs Outputs
non) ROW) 99(1) R9(2) thr tte 03 0A R0(1) R0(2) th, At ths 0A
H H L X L L L L H H L L L L
H H X L L L L L L X COUNT
X X H H H L L H X L COUNT
'f :2 f [)2 f2lff, Note A: Output 0A is connected to input B for BCD count.
L X X L COUNT Note B: Output tho 15 connected to 1nput A for bi-quinary count.
X L L X COUNT Note C: Outpot QA Is connected to 'mput B.
Note th H = High Level, L = Low Level, X = Don't Dare.
V86 0 V06
90A ° 93A
Logic Diagrams
90A 93A
R911) (6) J 0
mm m (14)
INPUT A ."-'------
J tt -i.1?2, Ita K
(14) L
mm A -"----------© CLOCK
INPUT B ----arCLoCK
E J o --o-"-'% K
mpura l l a a>cLocx j'
TL FCLOCtt
J 0 .L'"-oe
>CLOCK
i, mxn!.ll,,-c
Rom -'"rl
d Q t 'ot,
3>CLOCK
Min 'j Yo tt
R0(2) (3)
TL/F/6533-3
The J and K inputs shown without connection are for reference only and are functionally at a high level.
TLfF/8382-4
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:
5490DMQB - product/5490qub?HQS=TI-nulI-null-dscatalog-df-pf-nuII-wwe
5490FMQB - product/5490fmqb?HQS=T|—null-null-dscatalog-df—pf—nuIl-wwe
DM5490AJ - product/dm5490aj?HQS=T|—nuII-null-dscatalog—df-pf-nuIl-wwe
DM5490AW - product/dm5490aw?HQS=T|-nu|I-null-dscataIog-df—pf—nuII-wwe
DM5493AJ - product/dm5493aj?HQS=TI-nulI-nulI-dscatalog-df-pf-nu||-wwe
DM5493AW - product/dm5493aw?HQS=T|-nu|I-nulI-dscatalog-df-pf-nuII-wwe
