AS4LC8M8S0
AS4LC4M16S0
®
Interleaved bank write waveform
CLK
(BL = 8, Autoprecharge)
CS
RAS
CAS
tRC
tRAS
tRP
tRAS
tRAS
WE
BA0/BA1† Bank
A10
RAa
tRCD
Bank
tRCD
Bank
RBb
Bank
Bank
tRCD
Bank
RAc
A0-A9.A11 RAa
CAa
DQM
RBb
CAb
RAc
CAc
CKE
DQ
DAa0 DAa1
DAa4 DAa5 DAa6 DAa7 DBb0 DBb1 DBb2 DBb3
Bank A Active
Write
AP Bank A
Bank B
Active
Write
† BA0 and BA1 together determine which bank undergoes operations. AP = internal precharge begins
DBb4 DBb5 DBb6 DBb7 DAc0 DAc1 DAc2
Active
Write
AP Bank B
7/5/00
ALLIANCE SEMICONDUCTOR
23