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Switching Characteristics

PRINCIPLES OF OPERATION

Applications

Architecture

TXS0101

1-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR

FOR OPEN-DRAIN APPLICATIONS

SCES638 – OCTOBER 2007

FROM

TO

TEST

± 0.3 V

± 0.5 V

PARAMETER

UNIT

(INPUT)

(OUTPUT)

CONDITIONS

MIN

MAX

MIN

MAX

Push-pull driving

2.4

3.1

Open-drain driving

1.3

4.2

1.4

4.6

A

B

ns

Push-pull driving

4.2

4.4

Open-drain driving

36

204

28

165

Push-pull driving

2.5

3.3

Open-drain driving

1

124

1

97

B

A

ns

Push-pull driving

2.5

2.6

Open-drain driving

3

139

3

105

OE

A or B

200

200

ns

OE

A or B

40

35

ns

Push-pull driving

2.3

5.6

1.9

4.8

A-port rise time

ns

Open-drain driving

25

116

19

85

Push-pull driving

1.6

6.4

0.6

7.4

B-port rise time

ns

Open-drain driving

26

116

14

72

Push-pull driving

1.4

5.4

1

5

A-port fall time

ns

Open-drain driving

4.3

6.1

4.2

5.7

Push-pull driving

2.3

7.4

2.4

7.6

B-port fall time

ns

Open-drain driving

5

7.6

4.8

8.3

Push-pull driving

23

24

Max data rate

Mbps

Open-drain driving

1

1

The TXS0101 can be used in level-translation applications for interfacing devices or systems operating at

different interface voltages with one another. The TXS0101 is ideal for use in applications where an open-drain

driver is connected to the data I/Os. The TXB0101 can also be used in applications where a push-pull driver is

connected to the data I/Os, but the TXB0102 might be a better option for such push-pull applications.

The TXS0101 architecture (see Figure 1) does not require a direction-control signal to control the direction of

data flow from A to B or from B to A.

Copyright © 2007, Texas Instruments Incorporated

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