SN74LV21A: A smaller package, 12 channals Logic IC recommend

user5707026

Part Number: SN74LV21A
Other Parts Discussed in Thread: SN74ALS133, SN74LVC1G04, , SN74HC21

Hi Engineer,

We need to have 12 signals need to go through the AND gate logic output, see up to 4 channels and 2 inputs, such as the following two:
Which two chips are more advantageous?

Due to the compact space of the board, it is desirable to use a small package, as follows;
If you have other models, please help recommend it.

Thanks.

Elsa Duan

over 5 years ago

0 ShreyasRao over 5 years ago

TI__Guru 57710 points

Hi Elsa,

What is the operating voltage?

I would recommend using the SN74ALS133; 13 input positive NAND gate. The output can pass through another inverter like the SN74LVC1G04 to form AND gate. This will be a 2-chip solution. The overall size may be close to 60mm2.
you can also work with two of the SN74LV21A or the SN74HC21 device, if power savings are of concern.
www.ti.com/.../products.html&sort=p1306;desc

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SN74LV21A: A smaller package, 12 channals Logic IC recommend