IBM01164B0
IBM01164D0
4M x 4 Stacked DRAM
Refresh Cycle
-50
-60
-70
Symbol
Parameter
Units
Notes
Min. Max. Min. Max. Min. Max.
CAS Setup Time
(CAS before RAS Refresh Cycle)
tCSR
tCHR
tWRP
5
—
—
—
5
—
—
—
5
—
—
—
ns
ns
ns
CAS Hold Time
(CAS before RAS Refresh Cycle)
10
10
10
10
10
10
WE Setup Time
(CAS before RAS Refresh Cycle)
WE Hold Time
(CAS before RAS Cycle)
tWRH
tRPC
10
5
—
—
10
5
—
—
10
5
—
—
ns
ns
RAS Precharge to CAS Hold Time
Refresh
-50
-60
Max.
64
-70
SYMBOL
tREF
Parameter
Units
ms
Notes
1
Min.
—
Max.
64
Min.
Min.
Max.
64
Refresh Period
—
—
1. 4096 cycles.
©IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
28H4727
GA14-4248-01
Revised 11/96
Page 10 of 24
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