Hello all, and thanks in advance for the help. I'm trying to hook up two double 7 segment displays as part of a larger project. Unfortunately after hooking up the first one and trying to test it, nothing happened.
I'm using an HP QDSP-K347 common anode double display (datasheet: http://www.smcelectronics.com/DOWNLOADS/DP04.PDF)
As well as two 7446 decoders (http://pdf1.alldatasheet.com/datasheet-pdf/view/27428/TI/SN7446AN.html)
I'm pretty confident that my decoder output is going to the correct pins on the display. I've got both common anode pins to 9v as well as 330 ohm resistors before each segment. My 7446 is connected to 9v and ground on the correct pins. I've also got 3, 4, and 5 high, which the datasheet leads me to believe should put 2 zeroes on the display.
That's the part I'm not sure about. Also not sure if I'm putting the correct amount of current through each segment since I could only find one rather lacking datasheet for the display.
Thanks for reading, I appreciate any help in advance!
-CMonster
I'm using an HP QDSP-K347 common anode double display (datasheet: http://www.smcelectronics.com/DOWNLOADS/DP04.PDF)
As well as two 7446 decoders (http://pdf1.alldatasheet.com/datasheet-pdf/view/27428/TI/SN7446AN.html)
I'm pretty confident that my decoder output is going to the correct pins on the display. I've got both common anode pins to 9v as well as 330 ohm resistors before each segment. My 7446 is connected to 9v and ground on the correct pins. I've also got 3, 4, and 5 high, which the datasheet leads me to believe should put 2 zeroes on the display.
That's the part I'm not sure about. Also not sure if I'm putting the correct amount of current through each segment since I could only find one rather lacking datasheet for the display.
Thanks for reading, I appreciate any help in advance!
-CMonster