First post, by caver99
Rank
Newbie
does any one know of an equivalent part to nec d481850gf
Reply 1 of 2, by snufkin
Rank
Oldbie
Is that the uPD481850? I've attached the pinout pages from the datasheet, which was in the 1996 NEC databook on bitsavers.org
If so, it's an 8Mb SGRAM, arranged as 128k addresses, 32 bits wide, in 2 banks, in a 100 pin QFP package. I haven't had a close look at other datasheets, but it looks like there might be compatible parts, e.g. http://dosdays.co.uk/media/fujitsu/MB81G83222_Datasheet.pdf . But I've only done a 30sec check on some of the pinout, so I don't know if it's really compatible.
Reply 2 of 2, by mkarcher
Rank
l33t
snufkin wrote on 2024-04-05, 18:38:Is that the uPD481850? I've attached the pinout pages from the datasheet, which was in the 1996 NEC databook on bitsavers.org
It surely is. It is very common for NEC chips to omit the µP prefix on the chip marking.