just looking for some IC suggestions for the following.

binary (0-9) to 7 segment LED display.

simple low cost preferred.

 

That depends upon what inputs you have already.

Do you have the 7-segment display? If so, is it common cathode or common anode?

Is the BCD data at TTL, CMOS, or some other level?

 

i dont have led yet, but common cathode i would choose
level is TTL

there are many IC's that do the job, just wondering what is common and inexpensive.

also, anyone hear of a non-volatile 4bit counter? i see ROHM says it has one (BU70013TL) but i cant find it at any disti.

 

4511? CMOS, but I think it would work.

 

Use an SN7447A. Download the datasheet from Texas Instruments:
http://focus.ti.com/lit/ds/symlink/sn7447a.pdf

Get common cathode 7-segment displays. It's much easier to sink current from the 7 segments with the 7447 than try to source current.

You'll need a resistor from each cathode to the 7447 pins.

 

4511 is about half the price of the 7447A

have you ever seen a 7 segment led display that has a small pushbutton located on the bottom of the face and each press of the button has bcd output and changes the display, all in a single unit? it basically a bcd pushbutton switch, etc.

 

No. However, I do have a few LED displays that have BCD counters and drivers incorporated in them. They've been obsolete for awhile.

If you want something really cheap just to keep track of a count, just go to the dollar tree store and pick up a pedometer for a dollar. The display is LCD, but it's completely assembled with batteries. Just connect in your own switch to make the display increment.