TXB0104-Q1: question about OE pin with CR delay circuit

Kazuhiko Hirano

Part Number: TXB0104-Q1
Other Parts Discussed in Thread: TLV809E

Tool/software:

Hello,

Is OE pin a schmitt trigger input?
My customer plans to put CR circuit at OE input to delay OE timing. Is this OK? Or any concerns on this and it is not recommended?

Best regards,

K.Hiarano

3 months ago

+1 Jack Guan 3 months ago

TI__Mastermind 39986 points

Hi Hirano-san,

The OE pin for this device is a normal CMOS input as it has VIL/ VIH thresholds. If RC is to be used to delay timing, it is advised to follow the recommended transition rate within device datasheet:

Regards,

Jack

+1 Clemens Ladisch 2 months ago

Guru 316380 points

Add a Schmitt-trigger buffer, or generate the reset signal with voltage supervisor like the TLV809E. (Such a reset signal might also be useful for other parts of the circuit.)

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TXB0104-Q1: question about OE pin with CR delay circuit