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SN74LVC1T45DBVT 数据表(PDF) 7 Page - Texas Instruments

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部件名 SN74LVC1T45DBVT
功能描述  SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
PDF  22 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

SN74LVC1T45DBVT 数据表(HTML) 7 Page - Texas Instruments

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SN74LVC1T45
SINGLEBIT DUALSUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS
SCES515E − 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
2.9
7.3
3
7.3
2.8
7.3
3.4
7.3
ns
tPLZ
DIR
A
1.8
5.6
1.6
5.6
2.2
5.7
2.2
5.7
ns
tPHZ
DIR
B
5.4
20.5
3.9
10.1
2.9
8.8
2.4
6.8
ns
tPLZ
DIR
B
3.3
14.5
2.9
7.8
2.4
7.1
1.7
4.9
ns
tPZH†
DIR
A
22.8
14.2
12.9
10.3
ns
tPZL†
DIR
A
27.6
15.5
13.8
11.3
ns
tPZH†
DIR
B
21.1
13.6
11.5
10.1
ns
tPZL†
DIR
B
19.9
14.3
12.3
11.3
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
2.1
5.4
2.2
5.4
2.2
5.5
2.2
5.4
ns
tPLZ
DIR
A
0.9
3.8
1
3.8
1
3.7
0.9
3.7
ns
tPHZ
DIR
B
4.8
20.2
2.5
9.8
1
8.5
2.5
6.5
ns
tPLZ
DIR
B
4.2
14.8
2.5
7.4
2.5
7
1.6
4.5
ns
tPZH†
DIR
A
22
12.5
11.4
8.4
ns
tPZL†
DIR
A
27.2
14.4
12.5
10
ns
tPZH†
DIR
B
18.9
11.3
9.1
7.6
ns
tPZL†
DIR
B
17.6
11.6
10
8.9
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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