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SN74LVC2T45DCTR bảng dữ liệu(PDF) 7 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  DUAL BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
PDF  22 Pages
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SN74LVC2T45DCTR bảng dữ liệu(HTML) 7 Page - Texas Instruments

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SN74LVC2T45
DUALBIT DUALSUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS
SCES516E − DECEMBER 2003 − REVISED MAY 2004
7
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCCA = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
VCCB = 5 V
± 0.5 V
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
B
2.1
15.5
1.4
8
0.7
5.8
0.7
4.4
ns
tPHL
A
B
2
12.6
1.3
7
0.8
5
0.7
4
ns
tPLH
B
A
1.7
8.3
1.3
6.4
0.7
5.8
0.6
5.4
ns
tPHL
B
A
1.8
7.1
1.3
5.4
0.8
5
0.7
4.5
ns
tPHZ
DIR
A
5
10.9
5.1
10.8
5
10.8
5
10.4
ns
tPLZ
DIR
A
3.4
8.4
3.7
8.4
3.9
8.1
3.3
7.8
ns
tPHZ
DIR
B
11.2
27.3
8
13.7
5.8
10.4
2.9
7.4
ns
tPLZ
DIR
B
9.4
17.7
5.6
11.3
4.3
8.3
1
5.6
ns
tPZH†
DIR
A
26
17.7
14.1
11
ns
tPZL†
DIR
A
34.4
19.1
15.4
11.9
ns
tPZH†
DIR
B
23.9
16.4
13.9
12.2
ns
tPZL†
DIR
B
23.5
17.8
15.8
14.4
ns
† The enable time is a calculated value, derived using the formula shown in the section entitled enable times on page 16.
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCCA = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
VCCB = 5 V
± 0.5 V
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
B
1.9
15.1
1
7.5
0.6
5.4
0.5
3.9
ns
tPHL
A
B
1.8
12.2
0.9
6.2
0.7
4.5
0.5
3.5
ns
tPLH
B
A
1.4
7.2
1
5.1
0.7
4.4
0.5
3.9
ns
tPHL
B
A
1.7
7
0.9
4.6
0.7
4
0.5
3.5
ns
tPHZ
DIR
A
2.9
8.2
2.9
7.9
2.8
7.9
2.2
7.8
ns
tPLZ
DIR
A
1.4
6.9
1.3
6.7
0.7
6.7
0.7
6.6
ns
tPHZ
DIR
B
11.2
26.1
7.2
13.9
5.8
10.1
1.3
7.3
ns
tPLZ
DIR
B
8.4
16.9
5
11
4
7.7
1
5.6
ns
tPZH†
DIR
A
24.1
16.1
12.1
9.5
ns
tPZL†
DIR
A
33.1
18.5
14.1
10.8
ns
tPZH†
DIR
B
22
14.2
12.1
10.5
ns
tPZL†
DIR
B
20.4
14.1
12.4
11.3
ns
† The enable time is a calculated value, derived using the formula shown in the section entitled enable times on page 16.



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