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Ask me a question about Solid State Relays?

Former Member over 12 years ago

When to use Solid State Relays vs. Electromechnical Relays?

If faster switching response, no bounce, silent operation and long life are required.

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0 Former Member over 12 years ago

Sir Aiman,

Good day.

We are currently looking for a chip for our LED price directory for gasoline station.
The technician said the chip is malfunctioning every time we hook up the SPI ribbon cable
it will turned OFF the LED lights. He said the chip is at OFF STATE. He gave us 74HC24HD number.
But noticed i can only find this on your site.

http://ph.element14.com/nxp/74hc244d/ic-74hc-cmos-smd-74hc244-soic20/dp/1201322?ref=lookahead

Do you think this is the chip we need the 74HC244D,65274HC244D,652 and not 74HC24HD? Also what in the 74HC series
can we use with same function. 4 DIGIT NUMERIC LED Display x 3 row, double face front & back.
price display programmable via RF controller.

Thank you.

RJ
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0 Former Member over 12 years ago

Sir Aiman,

Good day.

We are currently looking for a chip for our LED price directory for gasoline station.
The technician said the chip is malfunctioning every time we hook up the SPI ribbon cable
it will turned OFF the LED lights. He said the chip is at OFF STATE. He gave us 74HC24HD number.
But noticed i can only find this on your site.

http://ph.element14.com/nxp/74hc244d/ic-74hc-cmos-smd-74hc244-soic20/dp/1201322?ref=lookahead

Do you think this is the chip we need the 74HC244D,65274HC244D,652 and not 74HC24HD? Also what in the 74HC series
can we use with same function. 4 DIGIT NUMERIC LED Display x 3 row, double face front & back.
price display programmable via RF controller.

Thank you.

RJ
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

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