82C836 Datasheet, PDF (173/205 Pages) List of Unclassifed Manufacturers – Single-Chip 386sx AT

System Characteristics
AC Characteristics 16- and 20MHz s
Table 12-7. CPU to Local Memory----Formula Specifications
Symbol
te101
te102
te103
te103a
te104
te105
te106
te107
te108
te109
te111
te112
Critical Path
RAS precharge
RAS-to-CAS delay
CAS precharge
CAS rise to RAS fall
Row address setup before RAS
Row address hold after RAS
Row address setup before RAS
Column address setup before CAS
Column address hold after CAS
Column address setup before CAS
MWE rise before CAS fall
Write parity setup before CAS
* 14ns maximum for 82C836A-20.
Formula
t101-t100
t100-t102
t103-t102
t103-t100
t104-t100
t100-t105
t106-t100
t107-t102
t102-t108
t109-t102
t111-t102
t112-t102
16MHz
Min. Max.
---- 39
---- 24
---- 16
---- 7
---- 20
---- 7
---- 46
---- 17
---- 8
---- 43
---- 16
---- 10
20MHz
Min. Max.
---- 19
---- 15
---- 10
---- 6
---- 14
---- 5
---- 34
---- 11
---- 2
---- 31
---- 10*
---- 10
Table 12-8. CPU to Local Memory----Input Requirements
Symbol
t120
t121
t122
t123
Parameters
PARL, PARH setup before PROCCLK rise
during read
PARL, PARH hold after PROCCLK rise during read
D0-15 setup before PROCCLK rise during read
D0-15 hold after PROCCLK rise during read
16MHz
Min. Max.
9
----
6
----
9
----
6
----
20MHz
Min. Max.
9
----
6
----
9
----
6
----
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