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ISO7631FM, ISO7631FC, ISO7641FC

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SLLSEC3F – SEPTEMBER 2012 – REVISED APRIL 2016

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Copyright © 2012–2016, Texas Instruments Incorporated

(1)

Also known as Pulse Skew.

(2)

tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same

direction while driving identical loads.

(3)

tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same

direction while operating at identical supply voltages, temperature, input signals and loads.

(4)

The enable signal rate for C-grade devices should be

≤ 45 Kbps.

7.16 Switching Characteristics: VCC1 and VCC2 at 5 V ± 10%

VCC1 and VCC2 at 5 V ± 10% (over recommended operating conditions unless otherwise noted)

PARAMETER

TEST CONDITIONS

M-Grade

C-Grade

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

ISO7631F, ISO7641F

tPLH, tPHL

Propagation delay time

See Figure 16

3.5

7

10.5

11

17

28

ns

PWD(1)

Pulse width distortion |tPHL – tPLH|

See Figure 16

2

3

ns

tsk(o)

(2)

Channel-to-channel output skew time

Same-direction Channels

2

3

ns

Opposite-direction Channels

3

4

tsk(pp)

(3)

Part-to-part skew time

4.5

13

ns

tr

Output signal rise time

See Figure 16

1.6

2.8

ns

tf

Output signal fall time

See Figure 16

1

2.9

ns

tPHZ

Disable Propagation Delay, high-to-high

impedance output

See Figure 17

5

16

8

20

ns

tPLZ

Disable Propagation Delay, low-to-high

impedance output

See Figure 17

5

16

7

20

ns

tPZH

Enable Propagation Delay, high

impedance-to-high output

See Figure 17

4

16

11000

22000(4)

ns

tPZL

Enable Propagation Delay, high

impedance-to-low output

See Figure 17

4

16

8

20

ns

tfs

Fail-safe output delay time from input

data or power loss

See Figure 18

9.5

9

μs

(1)

Also known as Pulse Skew.

(2)

tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same

direction while driving identical loads.

(3)

tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same

direction while operating at identical supply voltages, temperature, input signals and loads.

(4)

The enable signal rate for C-grade devices should be

≤ 45 Kbps.

7.17 Switching Characteristics: VCC1 at 5 V ± 10% and VCC2 at 3.3 V ± 10%

VCC1 at 5 V ± 10% and VCC2 at 3.3 V ± 10% (over recommended operating conditions unless otherwise noted)

PARAMETER

TEST CONDITIONS

M-Grade

C-Grade

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

ISO7631F, ISO7641F

tPLH, tPHL

Propagation delay time

See Figure 16

4

8

13

11

18

32

ns

PWD(1)

Pulse width distortion |tPHL – tPLH|

See Figure 16

2

3.5

ns

tsk(o)

(2)

Channel-to-channel output skew time

Same-direction Channels

2.5

4.5

ns

Opposite-direction Channels

3.5

5.5

tsk(pp)

(3)

Part-to-part skew time

6

15

ns

tr

Output signal rise time

See Figure 16

2

3.6

ns

tf

Output signal fall time

See Figure 16

1.2

3.3

ns

tPHZ

Disable Propagation Delay, high-to-

high impedance output

See Figure 17

6.5

17

9

20

ns

tPLZ

Disable Propagation Delay, low-to-

high impedance output

See Figure 17

6.5

17

8

20

ns

tPZH

Enable Propagation Delay, high

impedance-to-high output

See Figure 17

5.5

17

11000

22000(4)

ns

tPZL

Enable Propagation Delay, high

impedance-to-low output

See Figure 17

5.5

17

10

30

ns

tfs

Fail-safe output delay time from input

data or power loss

See Figure 18

9.5

8.5

μs