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DM74LS93 データシート(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 DM74LS93
部品情報  Decade and Binary Counters
PDF  10 Pages
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

DM74LS93 データシート(HTML) 3 Page - National Semiconductor (TI)

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’LS90 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted) (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
IIH
High Level Input
VCC e Max VI e 27V
Reset
20
Current
A40
m
A
B80
IIL
Low Level Input
VCC e Max VI e 04V
Reset
b
04
Current
A
b
24
mA
B
b
32
IOS
Short Circuit
VCC e Max (Note 2)
b
20
b
100
mA
Output Current
ICC
Supply Current
VCC e Max (Note 3)
9
15
mA
Note 1
All typicals are at VCC e 5V TA e 25 C
Note 2
Not more than one output should be shorted at a time and the duration should not exceed one second
Note 3
ICC is measured with all outputs open both RO inputs grounded following momentary connection to 45V and all other inputs grounded
Note 4
QA outputs are tested at IOL e Max plus the limit value of IIL for the B input This permits driving the B input while maintaining full fan-out capability
’LS90 Switching Characteristics
at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
From (Input)
RL e 2kX
Symbol
Parameter
To (Output)
CL e 15 pF
CL e 50 pF
Units
Min
Max
Min
Max
fMAX
Maximum Clock
A to QA
32
20
MHz
Frequency
BtoQB
16
10
tPLH
Propagation Delay Time
AtoQA
16
20
ns
Low to High Level Output
tPHL
Propagation Delay Time
AtoQA
18
24
ns
High to Low Level Output
tPLH
Propagation Delay Time
AtoQD
48
52
ns
Low to High Level Output
tPHL
Propagation Delay Time
AtoQD
50
60
ns
High to Low Level Output
tPLH
Propagation Delay Time
BtoQB
16
23
ns
Low to High Level Output
tPHL
Propagation Delay Time
BtoQB
21
30
ns
High to Low Level Output
tPLH
Propagation Delay Time
BtoQC
32
37
ns
Low to High Level Output
tPHL
Propagation Delay Time
BtoQC
35
44
ns
High to Low Level Output
tPLH
Propagation Delay Time
BtoQD
32
36
ns
Low to High Level Output
tPHL
Propagation Delay Time
BtoQD
35
44
ns
High to Low Level Output
tPLH
Propagation Delay Time
SET-9 to
30
35
ns
Low to High Level Output
QA QD
tPHL
Propagation Delay Time
SET-9 to
40
48
ns
High to Low Level Output
QB QC
tPHL
Propagation Delay Time
SET-0 to
40
52
ns
High to Low Level Output
Any Q
3



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