What does the print on RAM chips mean?

[Cityboy]

Hello gurus, I read some threads and it seems there's a formula to read your RAM? like all the info bout that stick is printed on the chip? Can anybody tell me what exactly can you tell, and how?

I'm also curious bout my RAM which says:
NCP
NP33S168128K-7.5
0039
16MX8 SDRAM-8-1

It's supposedly a 128mb PC133 stick.... have I been swindled? I wanna get new RAM, so some help identifying these sticks would be greatly appreciated

Edit: I'm running a T'bird800 @ 1000, hoping to be able to get RAM to 133,cas2. Thinking about Apacer w/Infineon, but wanna be sure before I order 'em. Current RAM is generic and I think it's got instability written all over it.

Thanks guys

 

[kylebisme]

looks like 7.5ns stuff, should do pc-133 at at least cas3, mebey cas2. but it depends on the quality of the pcb too, have you tried it?

 

[ambiguous]

Hmmm... I think I have the same problem