not sure if anyone has said this, but your info on the manufacturing process is incorrect sayaa

Quote Originally Posted by clarence
No need to argue, just read up on their respective datasheets from Winbond.

From the Winbond 942516CH datasheet (for all speed grades from CH-75 to CH-5), the manufacturing process is described as 0.13um. It also says the 942516CH is sorted into 4 speed grades (-75,-7,-6,-5).

I would be very surprised if Winbond has lines that produce ram using 0.18um, 0.166um, 0.15um & 0.13um in an overlapped timeframe. For starters, it means massive investment wasted, as 0.166 & 0.15 are not necessary as Winbond is already migrating to 0.13 at the time when the BH series was in production. The incremental benefits offered by 0.166 & 0.15 over 0.18 does not justify the investment needed. Secondly, why would Winbond waste production cost in producing chips in a larger process when a smaller & more cost effective process is available (not to mention the cost in inventory controls)? Thirdly, what happens to those CH-5 that cannot function at 200MHz but can do so at 166MHz?? Do they junk them altogether?? They surely can't be called CH-6 if it's from a different process!!!

The words AH, BH, CH tells u which generaation it belongs, & the -75, -7, -6, -5 tells u it's speed. If u look at the ICs themselves, it's printed "BH-5" or "CH-5", BH5 or CH5 is just an abbreviation.

http://www.winbond.com.tw/c-winbondh...2_g_1_a.htm#06

Datasheet for CH series available at bottom of the page.