The SODIMM in one Iopener I examined closely was labeled:
Mosel Vitelic
V43644Y04VCTG
PC100 U 222 612 A
Using data from the Mosel/Vitelic web site.
V43644Y04VCTG translates as:
V = Mosel/Vitelic
4 = SDRAM
3 = 3.3V
64 = Memory Width
4 = Memory Depth
Y = 144 Pin Unbuffered SODIMM x16 Component
0 = Refresh rate 4k
4 = 4 banks
V = LVTTL interface levels
T = TSOP package
G = Gold pins
PC100 U 222 612 A translates as:
PC100 = PC100 (Duh)
U = Unbuffered
2 = Cl 2 Clks
2 = Trcd 2 Clks (row to Column Delay Time)
2 = Trp 2 Clks (row precharge time)
61 = 6.1 nsec Tac ( Access time from clock)
2 = JDEC SPD Revision 2.0
A = Gerber file Intel PC100 x 8 Based (sodimm PCB layout based on the Intel PC100 x8 Spec.)