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HD74LS293 Fiches technique(PDF) 4 Page - Renesas Technology Corp

No de pièce HD74LS293
Description  4-bit Binary Counter
PDF  8 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD74LS293 Fiches technique(HTML) 4 Page - Renesas Technology Corp

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HD74LS293
Rev.3.00, Jul.15.2005, page 4 of 7
Switching Characteristics
(VCC = 5 V, Ta = 25°C)
Item
Symbol
Inputs
Outputs
min.
typ.
max.
Unit
Condition
A
QA
32
42
—
Maximum count
frequency
ƒmax
B
QB
16
—
—
MHz
tPLH
—
10
16
tPHL
A
QA
—
12
18
ns
tPLH
—
46
70
tPHL
A
QD
—
46
70
ns
tPLH
—
10
16
tPHL
B
QB
—
14
21
ns
tPLH
—
21
32
tPHL
B
QC
—
23
35
ns
tPLH
—
34
51
tPHL
B
QD
—
34
51
ns
Propagation delay
time
tPHL
Set-to-0
QA to QD
—
26
40
ns
CL = 15 pF,
RL = 2 k
Ω
Timing Method
A or B
Input
R0
0 V
3 V
0 V
3 V
1.3 V
1.3 V
tw
tsu
1.3 V
1.3 V
tw



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