Autor: Granel (granel_at_friko4.onet.pl)
Data: Thu 09 Jul 1998 - 23:23:01 MET DST
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a.. Clock Period (Cycle Time) and Access Time are not the same.
b.. There are no SDRAMs currently available with Clock Periods (Cycle Time)
faster than 8ns.
c.. 7ns and 6ns Clock Period modules do not exist.
d.. All PC100 SDRAMs must meet at least 6ns for Access Time.
e.. EPoX strongly recommends using at least 8ns for Clock Period (Cycle
Time).
----------------------------------------------------------------------------
----
Understanding Memory Chip Markings
SEC (SAMSUNG)
Part# Suffix
Performance
Cycle Time
Access Time
-10
NOT PC100
10ns.
7 ns.
-GL
PC100
10 ns.
6 ns.
-GH
PC100
10 ns.
6 ns.
-8
PC100
8 ns.
6 ns.
TOSHIBA
Part# Suffix
Performance
Cycle Time
Access Time
-10
NOT PC100
10 ns.
7 ns.
-8
PC100
8 ns.
6 ns.
LGS (LUCKY GOLDSTAR)
Part# Suffix
Performance
Cycle Time
Access Time
-10K
NOT PC100
10 ns.
8 ns.
-8
PC100
8 ns.
6 ns.
-7J
PC100
10 ns.
6 ns.
MT (MICRON)
Part# Suffix
Performance
Cycle Time
Access Time
-10
NOT PC100
10 ns.
7 ns.
-8C
PC100
8 ns.
6 ns.
-8E
PC100
8 ns.
6 ns.
Troche informacji pomocnych przy wyborze pamieci do plyt 100MHz.
Granel.
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>
<META content=3Dtext/html;charset=3Diso-8859-2 =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.138346497.393754212.11975"' name=3DGENERATOR>
</HEAD>
<BODY>
<DIV>
<LI><FONT face=3D"Arial CE"><SMALL>Clock Period (Cycle Time) and Access =
Time are=20
<U><STRONG><FONT color=3D#ff0000>not</FONT></STRONG></U> the =
same.</SMALL></FONT>=20
</LI>
<LI><FONT face=3D"Arial CE"><SMALL>There are no SDRAMs currently =
available with=20
Clock Periods (Cycle Time) faster than 8ns.</SMALL></FONT>=20
<LI><FONT face=3D"Arial CE"><SMALL>7ns and 6ns Clock Period modules do =
not=20
exist.</SMALL></FONT>=20
<LI><FONT face=3D"Arial CE"><SMALL>All PC100 SDRAMs must meet at least=20
<U><STRONG>6ns for Access Time</STRONG></U>.</SMALL></FONT>=20
<LI><FONT face=3D"Arial CE"><SMALL>EPoX strongly recommends using at =
least=20
<STRONG><U>8ns for Clock Period (Cycle =
Time)</U></STRONG>.</SMALL></FONT> </LI>
<HR>
<P><STRONG><FONT face=3D"Arial CE">Understanding Memory Chip=20
Markings</FONT></STRONG></P>
<DIV align=3Dcenter>
<CENTER>
<TABLE border=3D0 cellPadding=3D2>
<TBODY>
<TR>
<TD vAlign=3Dtop>
<TABLE border=3D1 cellPadding=3D3 cellSpacing=3D0>
<TBODY>
<TR>
<TD colSpan=3D4 noWrap vAlign=3Dtop><FONT =
face=3D"Arial CE"=20
size=3D2><B>SEC (SAMSUNG)</B></FONT></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Part#=20
Suffix</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>Performance</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Cycle=20
Time</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Access=20
Time</FONT></P></TD></TR>
<TR>
<TD noWrap>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1>-10</FONT></P></TD>
<TD noWrap>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1><STRONG>NOT =
PC100</STRONG></FONT></P></TD>
<TD noWrap>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1>10ns.</FONT></P></TD>
<TD noWrap>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1><STRONG>7 =
ns.</STRONG></FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>-GL</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>PC100</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>10=20
ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>6=20
ns.</FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>-GH</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>PC100</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>10=20
ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>6=20
ns.</FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>-8</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>PC100</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>8=20
ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>6=20
ns.</FONT></P></TD></TR></TBODY></TABLE></TD>
<TD vAlign=3Dtop>
<TABLE border=3D1 cellPadding=3D3 cellSpacing=3D0>
<TBODY>
<TR>
<TD colSpan=3D4 noWrap vAlign=3Dtop><FONT =
face=3D"Arial CE"=20
size=3D2><B>TOSHIBA</B></FONT></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Part#=20
Suffix</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>Performance</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Cycle=20
Time</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Access=20
Time</FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1>-10</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1><STRONG>NOT =
PC100</STRONG></FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1>10 ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1><STRONG>7 =
ns.</STRONG></FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>-8</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>PC100</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>8=20
ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>6=20
=
ns.</FONT></P></TD></TR></TBODY></TABLE></TD></TR>
<TR>
<TD vAlign=3Dtop>
<TABLE border=3D1 cellPadding=3D3 cellSpacing=3D0>
<TBODY>
<TR>
<TD colSpan=3D4 noWrap vAlign=3Dtop><FONT =
face=3D"Arial CE"=20
size=3D2><B>LGS (LUCKY =
GOLDSTAR)</B></FONT></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Part#=20
Suffix</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>Performance</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Cycle=20
Time</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Access=20
Time</FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1>-10K</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1><STRONG>NOT =
PC100</STRONG></FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1>10 ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1><STRONG>8 =
ns.</STRONG></FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>-8</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>PC100</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>8=20
ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>6=20
ns.</FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>-7J</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>PC100</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>10=20
ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>6=20
ns.</FONT></P></TD></TR></TBODY></TABLE></TD>
<TD vAlign=3Dtop>
<TABLE border=3D1 cellPadding=3D3 cellSpacing=3D0>
<TBODY>
<TR>
<TD colSpan=3D4 noWrap vAlign=3Dtop><FONT =
face=3D"Arial CE"=20
size=3D2><B>MT (MICRON)</B></FONT></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Part#=20
Suffix</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>Performance</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Cycle=20
Time</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>Access=20
Time</FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1>-10</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1><STRONG>NOT =
PC100</STRONG></FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1>10 ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT color=3D#ff0000 =
face=3D"Arial CE"=20
size=3D1><STRONG>7 =
ns.</STRONG></FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>-8C</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>PC100</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>8=20
ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>6=20
ns.</FONT></P></TD></TR>
<TR>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>-8E</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE"=20
size=3D1>PC100</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>8=20
ns.</FONT></P></TD>
<TD noWrap vAlign=3Dtop>
<P align=3Dcenter><FONT face=3D"Arial CE" =
size=3D1>6 ns.=20
=
</FONT></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER><=
/DIV>Troche=20
informacji pomocnych przy wyborze pamieci do plyt 100MHz.</DIV>
<DIV>=A0</DIV>
<DIV>Granel.</DIV></BODY></HTML>
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