DocID023308 Rev 2

13/21

ST2129B

Electrical characteristics

Symbol

Parameter

Unit

Min.

Max.

Min.

Max.

Min.

Max.

-

3.3

-

2.2

-

1.7

ns

-

1.7

-

1.6

-

1.4

ns

-

2.2

-

2.2

-

1.9

ns

-

1.3

-

1.2

-

1.2

ns

Propagation delay time

-

4.8

-

4.3

-

3.9

ns

-

3.7

-

3.3

-

2.9

ns

Propagation delay time

-

3.9

-

3.5

-

3.5

ns

-

3.6

-

3.5

-

3.4

ns

-

25

-

25

-

25

ns

-

100

-

100

-

70

ns

-

90

-

90

-

90

ns

-

50

-

50

-

50

ns

90

-

136

-

158

-

Mbps

1. Data rate is guaranteed based on the condition that output I/O signal rise/fall time is less than 15% of period of

input I/O signal; input I/O signal is at 50% duty cycle and output I/O signal duty cycle deviation is less than

50% ± 10%.