ISO1540

ISO1541

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SLLSEB6B – JULY 2012 – REVISED MAY 2013

SWITCHING CHARACTERISTICS

Over recommended operating conditions, unless otherwise noted

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

3 V

≤ VCC1, VCC2 ≤ 3.6 V

See Figure 1

0.7 x VCC1 to 0.3 x VCC1

8

17

29

Output Signal Fall Time

ns

(SDA1, SCL1)

0.9 x VCC1 to 900 mV

16

29

48

See Figure 1

0.7 x VCC2 to 0.3 x VCC2

14

23

47

Output Signal Fall Time

ns

(SDA2, SCL2)

0.9 x VCC2 to 400 mV

35

50

100

Low-to-High Propagation

0.55 V to 0.7 x VCC2

33

65

ns

Delay, Side 1 to Side 2

High-to-Low Propagation

0.7 V to 0.4 V

90

181

ns

Delay, Side 1 to Side 2

Pulse Width Distortion

See Figure 1

55

123

ns

Low-to-High Propagation

(1)

0.4 x VCC2 to 0.7 x VCC1

47

68

ns

Delay, Side 2 to Side 1

High-to-Low Propagation

(1)

0.4 x VCC2 to 0.9 V

67

109

ns

Delay, Side 2 to Side 1

Pulse Width Distortion

(1)

20

49

ns

See Figure 2;

Round-trip propagation

(1)

0.4 V to 0.3 x VCC1

100

165

ns

delay on Side 1

4.5V

≤ VCC1, VCC2 ≤ 5.5V

See Figure 1

0.7 x VCC1 to 0.3 x VCC1

6

11

20

Output Signal Fall Time

ns

(SDA1, SCL1)

0.9 x VCC1 to 900 mV

13

21

39

See Figure 1

0.7 x VCC2 to 0.3 x VCC2

10

18

35

Output Signal Fall Time

ns

(SDA2, SCL2)

0.9 x VCC2 to 400 mV

28

41

76

Low-to-High Propagation

0.55 V to 0.7 x VCC2

31

62

ns

Delay, Side 1 to Side 2

High-to-Low Propagation

0.7 V to 0.4 V

70

139

ns

Delay, Side 1 to Side 2

Pulse Width Distortion

See Figure 1

38

80

ns

Low-to-High Propagation

(1)

0.4 x VCC2 to 0.7 x VCC1

55

80

ns

Delay, Side 2 to Side 1

High-to-Low Propagation

(1)

0.4 x VCC2 to 0.9 V

47

85

ns

Delay, Side 2 to Side 1

Pulse Width Distortion

(1)

8

21

ns

See Figure 2;

Round-trip propagation

(1)

0.4 V to 0.3 x VCC1

110

180

ns

delay on Side 1

(1)

This parameter does not apply to the ISO1541 SCL1 line as it is uni-directional.

TIMING CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Noise Filter

5

12

ns

See Figure 4

Time to recover from Undervoltage Lock-out

30

50

110

µs

2.7 V to 0.9 V

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