Hi i am making an electronic dice and ive got a 555 astable, with its output connected to a 4510 and this is connected to a 4511 bcd-7 seg. This is then connected to a standard 7 seg led (http://www.datasheetcatalog.org/datasheet/hp/HDSP-5507.pdf). The cicuit is ran off a 9v battery.
I built the circuit and it functions correctly. However i wanted to use a larger led display so i brought a (http://docs-europe.electrocomponents.com/webdocs/020c/0900766b8020c616.pdf). However when i connect the output of the 4511 to the display it will only display numbers 1-5, the display has no segments lit up every now and again. im guessing this is when it is spose to display the number 6. when it does display the numbers 1-5 the diplay is very dim and them it takes about 5 seconds for segments to increase from being very dull to being full on.
is this because the ic can not deliver enough current to drive the display?
any help would be appreciated because im sctraching my head at the moment.
I built the circuit and it functions correctly. However i wanted to use a larger led display so i brought a (http://docs-europe.electrocomponents.com/webdocs/020c/0900766b8020c616.pdf). However when i connect the output of the 4511 to the display it will only display numbers 1-5, the display has no segments lit up every now and again. im guessing this is when it is spose to display the number 6. when it does display the numbers 1-5 the diplay is very dim and them it takes about 5 seconds for segments to increase from being very dull to being full on.
is this because the ic can not deliver enough current to drive the display?
any help would be appreciated because im sctraching my head at the moment.