4K roms at Mouser?

[the.golden.ax]

Does anyone know what the correct part number for 4K roms would be at mouser. I find their site difficult to search, and hoped perhaps someone had ordered there in the past. I'd prefer their site over others since I have a credit line with them.

 

{edit} or if it's just cheaper to get something larger and only use 4k...

 

Also, somewhat related, are there sources of new PCBs anywhere still? CPU maybe? The URL wasn't working and I didn't want to pester anybody with a PM until I'm ready to buy. This is just at a price / research stage really.

 

Thanks,

AX

[+nanochess]

The common number for 4K EPROM is 2732/2732A/M2732A, though I think them could be obsolete.

 

Alternatively you could search for PROM. The E indicates erasable with ultraviolete light, without E means it is programmable only one time.

 

Other common numbers:

2764/27C64 = 8K

27128/27C128 = 16K

27256/27C256 = 32K

27512/27C512 = 64K

[yllawwally]

Jameco has some eproms. http://www.jameco.co..._10001_40125_-1

You can use most EEPROMS or EPROMS that are not serial. It doesn't seem easy to find blank pcb's anymore. But if you were making only a few, you could scavenge from an old game.

Edited April 9, 2013 by yllawwally

[Dave Neuman]

I used these two vendors when burning chips for my arcade games a couple of years ago

 

Arcadechips 2732

 

$3.25 each

$2.75 each 10 or more

 

http://www.arcadechips.com/product_info.php?cPath=27_23&products_id=74

 

or

 

Bob Roberts

http://homearcade.org/BBBB/parts.html#eproms

[Tjoppen]

Get the cheapest parallell (Flash) EEPROM you can find (probably SMD ones). Tie any extra address lines to GND.

 

$3.25 each

 

Pricey.