AS4LC8M8S0
AS4LC4M16S0
®
Interleaved bank write waveform
(BL = 8, Autoprecharge)
CLK
CS
t
RC
RAS
t
t
t
RAS
RAS
RP
t
RAS
CAS
WE
t
t
t
RCD
RCD
RCD
†
BA0/ BA1
A10
Bank
CA
Bank
Bank
RA
Bank
Bank
Bank
RB
b
RA
c
a
A0-A9.A11
DQM
RA
RB
b
RA
c
CA
b
CA
c
a
a
CKE
DQ
DA
DA
a7
DB
DB
b4
DA
a0
DA
a1
DA DA
DB
b0
DB
b1
DB
b3
DB
b5
DB
b6
DB DA DA
DA
c2
a6
a4
a5
b2
b7
c0
c1
Bank A Active
Bank B
Write
AP Bank A
Write
Active
Write
AP Bank B
Active
†
BA0 and BA1 together determine which bank undergoes operations. AP = internal precharge begins
7/ 5/ 00
ALLIANCE SEMICONDUCTOR
23