confusion about Synopsys 90nm Generic Library.

Hi, All

I have download Synopsys 90nm Generic Library which is used for education.

it contains so many items, one corn lib of which (SAED_EDK90nm_ccs_models_hvt) is listed as below,

The directories and files are contained in the lib of SAED_EDK90nm_ccs_models_hvt

clock_gating/
isoao/
level_shifters/
level_shifters_ss/
retention/
retention_sr/
saed90nm_max_hth_hvt_ccs.db
saed90nm_max_hth_hvt_ccs.lib
saed90nm_max_htm_hvt_ccs.db
saed90nm_max_htm_hvt_ccs.lib
saed90nm_max_hvt_ccs.db
saed90nm_max_hvt_ccs.lib
saed90nm_max_lt_hvt_ccs.db
saed90nm_max_lt_hvt_ccs.lib
saed90nm_max_lth_hvt_ccs.db
saed90nm_max_lth_hvt_ccs.lib
saed90nm_max_ltm_hvt_ccs.db
saed90nm_max_ltm_hvt_ccs.lib
saed90nm_max_nt_hvt_ccs.db
saed90nm_max_nt_hvt_ccs.lib
saed90nm_max_nth_hvt_ccs.db
saed90nm_max_nth_hvt_ccs.lib
saed90nm_max_tm_hvt_ccs.db
saed90nm_max_tm_hvt_ccs.lib
saed90nm_min_ht_hvt_ccs.db
saed90nm_min_ht_hvt_ccs.lib
saed90nm_min_htl_hvt_ccs.db
saed90nm_min_htl_hvt_ccs.lib
saed90nm_min_htm_hvt_ccs.db
saed90nm_min_htm_hvt_ccs.lib
saed90nm_min_hvt_ccs.db
saed90nm_min_hvt_ccs.lib
saed90nm_min_ltl_hvt_ccs.db
saed90nm_min_ltl_hvt_ccs.lib
saed90nm_min_ltm_hvt_ccs.db
saed90nm_min_ltm_hvt_ccs.lib
saed90nm_min_nt_hvt_ccs.db
saed90nm_min_nt_hvt_ccs.lib
saed90nm_min_ntl_hvt_ccs.db
saed90nm_min_ntl_hvt_ccs.lib
saed90nm_min_tm_hvt_ccs.db
saed90nm_min_tm_hvt_ccs.lib
saed90nm_typ_ht_hvt_ccs.db
saed90nm_typ_ht_hvt_ccs.lib
saed90nm_typ_htl_hvt_ccs.db
saed90nm_typ_htl_hvt_ccs.lib
saed90nm_typ_htm_hvt_ccs.db
saed90nm_typ_htm_hvt_ccs.lib
saed90nm_typ_hvt_ccs.db
saed90nm_typ_hvt_ccs.lib
saed90nm_typ_lt_hvt_ccs.db
saed90nm_typ_lt_hvt_ccs.lib
saed90nm_typ_ltl_hvt_ccs.db
saed90nm_typ_ltl_hvt_ccs.lib
saed90nm_typ_ltm_hvt_ccs.db
saed90nm_typ_ltm_hvt_ccs.lib
saed90nm_typ_ntl_hvt_ccs.db
saed90nm_typ_ntl_hvt_ccs.lib
saed90nm_typ_tm_hvt_ccs.db
saed90nm_typ_tm_hvt_ccs.lib


my question is :
1) what does "tm"/"ntl"/"tl"/"ltl" mean? Maybe "t"/"l"/"h"/"l"/"m" stands for what?

2) How should I select these libraries according to various process scenarios?

Thanks a lot!

no body knows?

Do they not have a release note that explains the naming convention ?
Or do these files not have a header that tells you what type of library it is ?

I found the following document:
SAED90nm LowPower Library
According to it nt/lt/ht is for nominal/low/high temperature and the last letter is for the power voltage (h=1.08/l=0.9).
As lostinxlation said you should try to check the library document of the .lib header itself to make sure of the meaning.

Hi,

you can see the document avaliable at the following site also .. its Synopsys one...

**broken link removed**

hi, buddies,
Got it!!! thanks so much.

Dear all, I am a (really2 green) newbie.

When I compare my synthesis result with paper reference, the area is almost same (0.1092 vs 0.0929 mm2*). However, the gates count is significantly different (25.65 KGE vs 16.79 KGE*).

*the latter result is my work.

Would somebody explain why this could happen?
Is it due because we use different library?

Note:
The paper reference used TSMC 65nm library and I used SAED90nm library.

Thanks,