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.
Do you think this is the chip we need the 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.
I don't know if this is the kind of question you are looking for but we are using the International Rectifier
AUIPS7091 to turn on and off hydraulic valves. The valves draw about half an amp each but sometimes two or three may be temporarily connected to the same output.
I am planning on using the Si8660 to convert a microcontroller 3.3 V 1 mA output to a 5 V signal that will (hopefully) control the 7091.
Do you have any suggestions on any other ways I might use a 3.3 V signal at 1mA or less to control a 24 VDC 2-3 Amp output?