/F Refresh Cycle
tRE
/RE
tMSU
tRP
tMH
/F
Don’t Care or Indeterminate
NOTES: 1. During /F refresh cycles, the status of W/R, /WE, A0-10, /CAL, /S, and /G is a don’t care.
2. /RE inactive cache reads may be performed in parallel with /F refresh cycles.
/RE-Only Refresh
tC
tRE
/RE
tRP
tASR
tRAH
A0-10
Row
tNRS
tNRH
/CAL, /WE, /G,
W/R
tMSU
tMH
/F
/S
tSSR
tSHR
Don’t Care or Indeterminate
NOTES: 1. All binary combinations of A must be refreshed every 64ms interval. A does not have to be cycled, but must remain valid
0-9
10
during row address setup and hold times.
2. /RE refresh is write cycle with no /CAL active cycle.
1-35