MC-4532DA726 Datasheet, PDF (9/16 Pages) NEC – 32 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE

MC-4532DA726
Asynchronous Characteristics
Parameter
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)
/CAS latency = 2
Mode register set cycle time
Transition time
Refresh time (4,096 refresh cycles)
Symbol
-A 80
-A 10
MIN.
MAX.
MIN.
MAX.
tRC
70
70
tRC1
70
78
tRAS
48
120,000
50
120,000
tRP
20
20
tRCD
20
20
tRRD
16
tDPL
−1CLK+8
20
−1CLK+10
tDAL3
20
20
tDAL2
20
20
tRSC
2
2
tT
0.5
30
1
30
tREF
64
64
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
CLK
ns
ms
Note
Data Sheet M13633EJ7V0DS00
9