Rev.1 Page 11
Read Cycle
Write Cycle
Parameter Symbol
AD404M42V Unit Notes
-5 -6
Min Max Min Max
Access time from RAS t
RAC
- 50 - 60 ns 12
Access time from CAS t
CAC
- 14 - 15 ns 13, 14
Access time from column address t
AA
- 25 - 30 ns 14, 15
Access time from OE t
OEA
- 12 - 15 ns
Read command setup time t
RCS
0 - 0 - ns 7
Read command hold time to CAS t
RCH
0 - 0 - ns 10, 16
Read command hold time to RAS t
RRH
0 - 0 - ns 16
Output buffer turn-off time t
OFF
0 12 0 15 ns 17
Output buffer turn-off time from OE t
OEZ
0 12 0 15 ns 17
Parameter Symbol
AD404M42V Unit Notes
-5 -6
Min Max Min Max
Write command setup time t
WCS
0 - 0 - ns 7, 18
Write command hold time t
WCH
8 - 10 - ns
Write command pulse width t
WP
8 - 10 - ns
Write command to RAS lead time t
RWL
13 - 15 - ns
Write command to CAS lead time t
CWL
8 - 10 - ns
Data-in setup time t
DS
0 - 0 - ns 19
Data-in hold time t
DH
8 - 10 - ns 19
WE to Data-in delay t
WED
10 - 10 - ns
