參數(shù)資料
型號: ST20GP6
英文描述: MAX 7000 CPLD 256 MC 208-RQFP
中文描述: GPS處理器
文件頁數(shù): 102/116頁
文件大?。?/td> 1107K
代理商: ST20GP6
ST20-GP1
102/116
19 Timing specifications
19.1 EMI timings
The timings are based on a 50 pF load, and are taken at a threshold of 1.5 V.
Table 19.1 EMI cycle timings
Note
: The ‘Reference clock’ used in the EMI timings is a virtual clock and is defined as the point at
which all data and address outputs are valid. This is designed to remove process dependent skews
from the datasheet description and highlight the dominant influence of address and data timings on
memory system design.
Symbol Parameter
Min
Max
Units
Notes
t
CHAV
Reference clock high to Address valid
-9.0
0.0
ns
t
CLSV
Reference clock low to Strobe valid
-11.0
3.0
ns
t
CHSV
Reference clock high to Strobe valid
-9.0
0.0
ns
t
RDVCH
Read Data valid to Reference clock high
32.0
-
ns
t
CHRDX
Read Data hold after Reference clock high
-9.0
-
ns
t
CHWDV
Reference clock high to Write Data valid
-9.0
2.0
ns
t
WVCH
MemWait valid to Reference clock high
27.0
-
ns
t
CHWX
MemWait hold after Reference clock high
-6.0
-
ns
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