IBM0612404GT3B
IBM0612804GT3B
128Mb Double Data Rate Synchronous DRAM
Advance Rev 0.2
Read Burst: CAS Latencies (Burst Length = 4)
CAS Latency = 2
CK
CK
Read
NOP
NOP
NOP
NOP
NOP
Command
Address
BA a,COL n
CL=2
DQS
DQ
DOa-n
t
QCS
t
QCH
QFC
(Optional)
CAS Latency = 2.5
CK
CK
Read
NOP
NOP
NOP
NOP
NOP
Command
Address
BA a,COL n
CL=2.5
DQS
DQ
DOa-n
t
QCS
t
QFC
QCH
(Optional)
Don’t Care
DO a-n = data out from bank a, column n.
3 subsequent elements of data out appear in the programmed order following DO a-n.
Shown with nominal t , t , and t
.
DQSQ
AC DQSCK
QFC is an open drain driver. The output high level is achieved through an external pull up resistor connected to V
.
DDQ
©IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
06K0566.F39350
5/00
Page 22 of 79
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