TCAL9539: alternative part with AEC-Q?

Maik Ackerschott

Part Number: TCAL9539
Other Parts Discussed in Thread: , TCA9539-Q1

Tool/software:

I have tested my design with this partnumber: TCAL9539PWR in TSSOP24

But this part is not aec-q qualified. Can I use this part: TCA9539QPWRQ1 ?

Do these parts have the same characteristics? There is a missing "L" between TCA and 9539. So I'm not sure about this.

I will use 400kHz I²C.

+1 Clemens Ladisch 2 months ago

Guru 316690 points

The L device has more registers. The basic device has only the first eight registers.

0 Tyler Townsend 2 months ago

Hi Maik,

The TCAL9539 exists in Q1. See the product page: https://www.ti.com/product/TCAL9539-Q1

TCAL9539-Q1 is only in QFN however.

TCA9539QPWRQ1 is p2p to TCAL9539PWR. It is 400 kHz limited.

TCA9539-Q1 does not have "L" attached because it does not have agile I/O registers.

See the difference in register maps between "L" on left and non-L on the right:

Regards,

Tyler

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