LSF0108: What's the difference between TXS and LSF?

Frank Xiao

Genius 12055 points

Part Number: LSF0108
Other Parts Discussed in Thread: TXS0108E

Hi team,

My customer wants to find how to select the level shift products.

1. What's the difference between TXS and LSF?

for example TXS0108 & LSF0108.

Thanks.

0 Emrys Maier over 4 years ago

Hi Frank,

There are many differences. In short, the TXS is a much more advanced translator that uses the same base concept as the LSF.

Here's a quick breakdown:

Specification	LSF0108	TXS0108E
Functional Block Diagram
Type of Translation	Passive Auto-bidirectional	Passive Auto-bidirectional + one-shot edge accelerators + internal pull-ups + active control logic
ESD Protection	Device-level only	Device-level on A side & control ports System-level on B side
Minimum Translation Voltage	1.0 V	1.4 V
Maximum Translation Voltage	5 V	5.5 V
Supports Open-Drain	Yes	Yes
Supports Push-Pull	Yes	Yes
Difficulty to design	High	Low
Load capacitance max limit	Depends on data rate desired - 70pF is recommended.	70 pF
Requires external pull-up resistors	Yes	No
Supports external pull-down resistors	No	No

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