MAX232 chips interchangeable?

[badbrains]

I've got some Texas Instruments chips labeled MAX232IN. Are these suitable for Atmega emu conversion use? Are all 232 chips essentially the same? Thanks.

[bud02]

I've used both
232CPE Description (IC 2DVR/2RCVR RS232 5V 16-DIP)
and
232N Description (IC DUAL EIA-232 DRVR/RCVR 16-DIP)
for maxmel / Atmel emulation on cemu and ST19
Should work fine.

[badbrains]

Thanks for the reply. I've got a few schematics to convert atmega to emu board but they call for a MAX233ACPP to be used. Can I use a 232 in it's place? If not, does anyone know of an atmega mod which uses 232 chips? I've got them and would rather not have to buy anything else. Thanks.

[empulse]

get the datasheets for both and compare the pinouts on them.

[Dnk]

I sugest as empulse has, get the datasheets for the 233 and the 232. If i recall correctly the 233 has a different pin configuration and therefor would require you to make you own schematic for it.

[bud02]

Apparently you can use ether, http://www.dssftp.com/forum/showpost.php?p=472484&postcount=48
The pin outs are different most notably 20/16 pin. Maybe you can complete the info on both versions for future reference. This poster had both working but left no details.
9198

9199

[badbrains]

Thanks for the info guys. After checking the datasheets, the 232 needs external caps to function as the 233 has internals. However, I read elsewhere that the flash is not 100% reliable with the setup. I will give it a go and post results when finished. First I need to get some caps. Thanks again.