SN74AHCT16244: Need to find alternative of CY74FCT16244TPVC

Nedyalko Peshev

Part Number: SN74AHCT16244
Other Parts Discussed in Thread: SN74ABT16244A, 74ACT16244

Tool/software:

Hi everyone. I looking for alternative of CY74FCT16244TPVC. I think SN74AHCT16244DGGR is FFF alternative but not shore. Can you support about your opinion?

4 months ago

+1 Clemens Ladisch 4 months ago

Guru 281800 points

There are no devices with exactly the same electrical characteristics.

The most similar devices are the SN74AHCT16244‍DLR, SN74ABT16244A‍DLR, and 74ACT16244‍DLR.

0 Nedyalko Peshev 4 months ago in reply to Clemens Ladisch

Prodigy 10 points

I'm selected 74ACT16244‍DLR. I was check datasheet regarding application. Can you accept my selection

0 Clemens Ladisch 4 months ago in reply to Nedyalko Peshev

Guru 281800 points

Any device will work fine in the optocoupler application.

The schematic at the bottom is too small and incomplete. I can see that you are paralleling multiple outputs, but it does not show the required drive strength.

0 Nedyalko Peshev 4 months ago in reply to Clemens Ladisch

Prodigy 10 points

The source is FPGA EP1C4F400C8.

0 Nedyalko Peshev 4 months ago in reply to Clemens Ladisch

Prodigy 10 points

Can you check if the source is FPGA EP1C4F400C8?

0 Clemens Ladisch 4 months ago in reply to Nedyalko Peshev

Guru 281800 points

What matters is not the source (any logic device at the matching voltage will work with the FPGA) but the load.

0 Nedyalko Peshev 4 months ago in reply to Clemens Ladisch

Prodigy 10 points

ULN2003

+1 Clemens Ladisch 4 months ago in reply to Nedyalko Peshev

Guru 281800 points

All these '244 devices have more than enough drive strength for the ULN2003.

0 Nedyalko Peshev 4 months ago in reply to Clemens Ladisch

Prodigy 10 points

You mean this 3 types SN74AHCT16244‍DLR, SN74ABT16244A‍DLR, and 74ACT16244‍DLR?

0 Clemens Ladisch 4 months ago in reply to Nedyalko Peshev

Guru 281800 points

Yes, these and all other logic families.

Logic

Logic forum

SN74AHCT16244: Need to find alternative of CY74FCT16244TPVC