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SN74AHC244DWRE4 Scheda tecnica(PDF) 6 Page - Texas Instruments

Il numero della parte SN74AHC244DWRE4
Spiegazioni elettronici  SNx4AHC244 Octal Buffers/Drivers With 3-State Outputs
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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SN74AHC244DWRE4 Scheda tecnica(HTML) 6 Page - Texas Instruments

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SN54AHC244, SN74AHC244
SCLS226K – OCTOBER 1995 – REVISED JULY 2014
www.ti.com
7.6 Switching Characteristics
over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 3)
TA = 25°C
SN54AHC244
SN74AHC244
FROM
TO
LOAD
PARAMETER
UNIT
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tPLH
5.8(1)
8.4(1)
1(1)
10(1)
1
10
A
Y
CL = 15 pF
ns
tPHL
5.8(1)
8.4(1)
1(1)
10(1)
1
10
tPZH
6.6(1)
10.6(1)
1(1)
12.5(1)
1
12.5
OE
Y
CL = 15 pF
ns
tPZL
6.6(1)
10.6(1)
1(1)
12.5(1)
1
12.5
tPHZ
5(1)
9.7(1)
1(1)
11(1)
1
11
OE
Y
CL = 15 pF
ns
tPLZ
5(1)
9.7(1)
1(1)
11(1)
1
11
tPLH
8.3
11.9
1
13.5
1
13.5
A
Y
CL = 50 pF
ns
tPHL
8.3
11.9
1
13.5
1
13.5
tPZH
9.1
14.1
1
16
1
16
OE
Y
CL = 50 pF
ns
tPZL
9.1
14.1
1
16
1
16
tPHZ
10.3
14
1
16
1
16
OE
Y
CL = 50 pF
ns
tPLZ
10.3
14
1
16
1
16
tsk(o)
CL = 50 pF
1.5(2)
1.5
ns
(1)
On products compliant to MIL-PRF-38535, this parameter is not production tested.
(2)
On products compliant to MIL-PRF-38535, this parameter does not apply.
7.7 Switching Characteristics
over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 3)
TO
TA = 25°C
SN54AHC244
SN74AHC244
FROM
LOAD
PARAMETER
(OUTPU
UNIT
(INPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
T)
tPLH
3.9(1)
5.5(1)
1(1)
6.5(1)
1
6.5
A
Y
CL = 15 pF
ns
tPHL
3.9(1)
5.5(1)
1(1)
6.5(1)
1
6.5
tPZH
4.7(1)
7.3(1)
1(1)
8.5(1)
1
8.5
OE
Y
CL = 15 pF
ns
tPZL
4.7(1)
7.3(1)
1(1)
8.5(1)
1
8.5
tPHZ
5(1)
7.2(1)
1(1)
8.5(1)
1
8.5
OE
Y
CL = 15 pF
ns
tPLZ
5(1)
7.2(1)
1(1)
8.5(1)
1
8.5
tPLH
5.4
7.5
1
8.5
1
8.5
A
Y
CL = 50 pF
ns
tPHL
5.4
7.5
1
8.5
1
8.5
tPZH
6.2
9.3
1
10.5
1
10.5
OE
Y
CL = 50 pF
ns
tPZL
6.2
9.3
1
10.5
1
10.5
tPHZ
6.7
9.2
1
10.5
1
10.5
OE
Y
CL = 50 pF
ns
tPLZ
6.7
9.2
1
10.5
1
10.5
tsk(o)
CL = 50 pF
1(2)
1
ns
(1)
On products compliant to MIL-PRF-38535, this parameter is not production tested.
(2)
On products compliant to MIL-PRF-38535, this parameter does not apply.
6
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