MC-4532CC727XFA
Asynchronous Characteristics
Parameter
Symbol
MIN.
ACT to REF/ACT command period (operation)
REF to REF/ACT command period (refresh)
ACT to PRE command period
PRE to ACT command period
Delay time ACT to READ/WRITE command
ACT(one) to ACT(another) command period
Data-in to PRE command period
Data-in to ACT(REF) command /CAS latency = 3
period (Auto precharge)
Mode register set cycle time
Transition time
Refresh time (4,096 refresh cycles)
/CAS latency = 2
t
RC
t
RC1
t
RAS
t
RP
t
RCD
t
RRD
t
DPL
t
DAL3
t
DAL2
t
RSC
t
T
t
REF
67.5
67.5
45
20
20
15
8
1CLK+22.5
1CLK+20
2
0.5
30
64
120,000
-A75
MAX.
ns
ns
ns
ns
ns
ns
ns
ns
ns
CLK
ns
ms
1
1
Unit
Note
Note
This device can satisfy the t
DAL3
spec of 1CLK+20 ns for up to and including 125 MHz operation.
Data Sheet E0229N20 (Ver. 2.0)
9
ELPIDA [ ELPIDA MEMORY ]
