I want to order a xilinx xc9536 cpld. In one
catalog I found the following

9536 XLX 44 PLCC In-system Programmable FLASH CPLD, 15ns, 100MHz
XC9536-15PC44C. 384-8980

9536 XLX 44 PLCC In-system Programmable FLASH CPLD, 10ns, 100MHz, 3.3V (IND
TEMP) XC9536XL-10PC44C 384-9016

What are the 15ns and 10ns respectively refer to ?

carshie wrote:
> I want to order a xilinx xc9536 cpld. In one catalog I found the following

> 9536 XLX 44 PLCC In-system Programmable FLASH CPLD, 15ns, 100MHz
> XC9536-15PC44C. 384-8980

> 9536 XLX 44 PLCC In-system Programmable FLASH CPLD, 10ns, 100MHz, 3.3V (IND
> TEMP) XC9536XL-10PC44C 384-9016

> What are the 15ns and 10ns respectively refer to ?

Did you take a look at the datasheets? 

-- 
Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

Good question. It's the pin-to-pin logic delay of
the device.

XC95xx come in several sizes (macrocells) each size is tested and given a 
speed rating, -10, -7, -15 etc.  This figure is the tpd in nanoseconds:  you 
can expect to pay more for the faster devices, but with the benefit that you 
can run them at a higher frequency.  The way to distinguish them is in the 
part number

XC95288-10HQ208C
^^^^^^^^ = 288 macrocell xc9500
               ^^^ = 10ns tpd
                     ^^^^^^^= 208 PQ package with heat sink
                                  ^ = commercial temperature grade

One vital thing to note is that this is NOT the same as FPGA markings, FPGA 
have a speed grade, which does not directly correspond to any tpd, and 
higher numbers are FASTER, the opposite of CPLD markings (from my 
experience)

Just my 2p
Ben


The silicon is qualified in terms of gate delay,
"Uwe Bonnes" <b...@hertz.ikp.physik.tu-darmstadt.de> wrote in message 
news:epqdaj$ngp$1...@lnx107.hrz.tu-darmstadt.de...
> carshie wrote:
>> I want to order a xilinx xc9536 cpld. In one catalog I found the 
>> following
>
>> 9536 XLX 44 PLCC In-system Programmable FLASH CPLD, 15ns, 100MHz
>> XC9536-15PC44C. 384-8980
>
>> 9536 XLX 44 PLCC In-system Programmable FLASH CPLD, 10ns, 100MHz, 3.3V 
>> (IND
>> TEMP) XC9536XL-10PC44C 384-9016
>
>> What are the 15ns and 10ns respectively refer to ?
>
> Did you take a look at the datasheets?
>
> -- 
> Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de
>
> Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
> --------- Tel. 06151 162516 -------- Fax. 06151 164321 ---------- 

> Did you take a look at the datasheets?

Having looked in the datasheet (belatently) there is another question,
in the top of the datasheet the pin to pin delay is quoted as 5ns, then
down below we see also 6ns 7ns 10ns 15ns. So do they mean to
say that 5ns is the fastest one, but slower one are also available?

Another question, I have here a xc9536 which has the following marking

xc9536 tm
pc44amm0521
f3002413a

7c

What speed would it be? I can't find the ordering number on the part,
or should have I made a note of it when I bought it (so how would I
to know if my supplier did not send me a different spec?)


>
> -- 
> Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de
>
> Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
> --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

Carshie,

See Answer Record 1067.  It will be able answer all your questions regarding 
to part markings:
http://www.xilinx.com/xlnx/xil_ans_display.jsp?iLanguageID=1&iCountryID=1&getPageP
ath=1067

-David

<carshie> wrote in message news:4...@mk-nntp-2.news.uk.tiscali.com...
>> Did you take a look at the datasheets?
>
> Having looked in the datasheet (belatently) there is another question,
> in the top of the datasheet the pin to pin delay is quoted as 5ns, then
> down below we see also 6ns 7ns 10ns 15ns. So do they mean to
> say that 5ns is the fastest one, but slower one are also available?
>
> Another question, I have here a xc9536 which has the following marking
>
> xc9536 tm
> pc44amm0521
> f3002413a
>
> 7c
>
> What speed would it be? I can't find the ordering number on the part,
> or should have I made a note of it when I bought it (so how would I
> to know if my supplier did not send me a different spec?)
>
>
>>
>> -- 
>> Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de
>>
>> Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
>> --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
>
> 

The final 7c stands for "speed-grade 7,
commercial temperature grade,
0 to 70 degrees centigrade)
Peter Alfke
On Jan 31, 8:50 am, <carshie> wrote:
> > Did you take a look at the datasheets?
>
> Having looked in the datasheet (belatently) there is another question,
> in the top of the datasheet the pin to pin delay is quoted as 5ns, then
> down below we see also 6ns 7ns 10ns 15ns. So do they mean to
> say that 5ns is the fastest one, but slower one are also available?
>
> Another question, I have here a xc9536 which has the following marking
>
> xc9536 tm
> pc44amm0521
> f3002413a
>
> 7c
>
> What speed would it be? I can't find the ordering number on the part,
> or should have I made a note of it when I bought it (so how would I
> to know if my supplier did not send me a different spec?)
>
>
>
> > --
> > Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de
>
> > Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
> > --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

> See Answer Record 1067.  It will be able
answer all your questions
regarding
> to part markings:
>
http://www.xilinx.com/xlnx/xil_ans_display.jsp?iLanguageID=1&iCountryID=1&getPageP
ath=1067


I looked, there is no answer to my question. My xc9536 does not carry
the markings mentioned there, all I have is as follows:

xc9536 tm
pc44amm0521
f3002413a

7c



>
> -David
>
> <carshie> wrote in message
news:4...@mk-nntp-2.news.uk.tiscali.com...
> >> Did you take a look at the datasheets?
> >
> > Having looked in the datasheet (belatently) there is another question,
> > in the top of the datasheet the pin to pin delay is quoted as 5ns, then
> > down below we see also 6ns 7ns 10ns 15ns. So do they mean to
> > say that 5ns is the fastest one, but slower one are also available?
> >
> > Another question, I have here a xc9536 which has the following marking
> >
> > xc9536 tm
> > pc44amm0521
> > f3002413a
> >
> > 7c
> >
> > What speed would it be? I can't find the ordering number on the part,
> > or should have I made a note of it when I bought it (so how would I
> > to know if my supplier did not send me a different spec?)
> >
> >
> >>
> >> -- 
> >> Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de
> >>
> >> Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
> >> --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
> >
> >
>
>

Did you actually look at Solution2?

You may not be using Virtex-4 but the rest of the lines appear verbatim 
correct to your description.


<carshie> wrote in message news:4...@mk-nntp-2.news.uk.tiscali.com...
>> See Answer Record 1067.  It will be able answer all your questions
> regarding
>> to part markings:
>>
>
http://www.xilinx.com/xlnx/xil_ans_display.jsp?iLanguageID=1&iCountryID=1&getPageP
ath=1067
>
>
> I looked, there is no answer to my question. My xc9536 does not carry
> the markings mentioned there, all I have is as follows:
>
> xc9536 tm
> pc44amm0521
> f3002413a
>
> 7c
>
>
>
>>
>> -David
>>
>> <carshie> wrote in message
> news:4...@mk-nntp-2.news.uk.tiscali.com...
>> >> Did you take a look at the datasheets?
>> >
>> > Having looked in the datasheet (belatently) there is another question,
>> > in the top of the datasheet the pin to pin delay is quoted as 5ns, then
>> > down below we see also 6ns 7ns 10ns 15ns. So do they mean to
>> > say that 5ns is the fastest one, but slower one are also available?
>> >
>> > Another question, I have here a xc9536 which has the following marking
>> >
>> > xc9536 tm
>> > pc44amm0521
>> > f3002413a
>> >
>> > 7c
>> >
>> > What speed would it be? I can't find the ordering number on the part,
>> > or should have I made a note of it when I bought it (so how would I
>> > to know if my supplier did not send me a different spec?)
>> >
>> >
>> >>
>> >> -- 
>> >> Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de
>> >>
>> >> Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
>> >> --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
>> >
>> >
>>
>>
>
> 

<carshie> wrote in message 
news:45c1011c$1...@mk-nntp-2.news.uk.tiscali.com...
>> Did you actually look at Solution2?
>>
>> You may not be using Virtex-4 but the rest of the lines appear verbatim
>> correct to your description.
>
> Well, if you believe that then you tell me, what is my propagation
> delay time?
>
<snip>

7 ns, Commercial grade.

Changing the "10C" to "7C" in the illustration to match your part
would make 
the following text applicable:


Line 4
Device speed grade (7) and temperature range (C). If a grade is not marked 
on the package, the product is considered commercial grade.

In addition to the mark shown above, Line 4 can contain a few other 
variations as described below:

7C xxxx
The "xxxx" indicates the SCD for the device.
An SCD is a special ordering code that is not always marked in the device 
top mark.

7CES
The "ES" indicates an Engineering Sample (as opposed to a production 
device).

7CESn
The "n" is a numeral (1, 2, 3, etc.)
The "ES" indicates an Engineering Sample, the "n" indicates an ES
revision 
code. For example, ES1, ES2, ES3, etc.
Please see Errata for appropriate information. To obtain Errata, you must 
register for MySupport, see (Xilinx Answer 21491).

7CESnL or 7CESnR
This part marking is used only for Virtex-4 FX engineering sample devices. 
The "L" indicates that only left (column 0) MGTs are available and the
"R" 
indicates that only the right (column 1) MGTs are available when looking at 
the device from the "bottom-up."

> 7 ns, Commercial grade.
>
> Changing the "10C" to "7C" in the illustration to match your part
would
make
> the following text applicable:

and where did you get the 10C from, did I say I have 10C ?