Suitable replacement for AT27C1024 IC

[giosif]

Hi,

I am looking for a suitable replacement for an Atmel AT27C1024 OTP EPROM IC in TSOP/VSOP-40 package, as it seems it's not that easy to find (let me know if you happen to have a spare one or know where to get one at a reasonable price).
The replacement IC can be either EPROM (OTP or otherwise) or EEPROM and could have larger capacity (the AT27C1024 has 1Mbit - 64K x 16 - capacity), as long as the pinout is the same.

Anyone has any suggestions, please?

Thanks!

[wraper]

You can still get one. https://www.utsource.net/itm/p/4142325.html Even though it says used, IME it likely will be NOS. There are a lot of suitable replacements including NOR FLASH like AT49F1024A, the issue is almost all of them are equally hard to buy in TSOP-40 package. And you need to spend a lot of time to search for all possible replacements and if you actually can buy them.

[Benta]

I don't think many EPROMs/OTPROMs are used any more. I'd look to Flash replacements instead, better availability.

[CaptDon]

Can't really say I have seen many offerings of quartz window eproms in small outline packages? Everyone simply went to single voltage flash memory which are available in SOP.

[Benta]

The OP wrote "OTP EPROM". No quartz window there.

[CaptDon]

"The replacement IC can be either EPROM (OTP or otherwise)"
 

[giosif]

Thank you all for the answers!

I have found (and ordered) an AT49F1024 from a seller in China.
Might turn out to be a dud, but the price was low enough to take the risk.

[james_s]

There's a very good chance it's counterfeit, but I guess you could get lucky.

[giosif]

You are probably right but, for the money, I thought I might just as well give it a try.