IC42S81600 Datasheet, PDF (31/69 Pages) Integrated Circuit Solution Inc – 4(2)M x 8(16) Bits x 4 Banks (128-MBIT) SYNCHRONOUS DYNAMIC RAM

IC42S81600/IC42S81600L
IC42S16800/IC42S16800L
AC Parameters for Write Timing (2 of 2)
Burst Length=4, CAS Latency=3
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 T23
CLK
tCH ^tCL
CKE
tCKS
CS
tCMS
tCK3
tCMH
Begin Auto Precharge _{Begin Auto Precharge}
Bank A
Bank B
tCKH
RAS
CAS
WE
*BS0
A10
ADD
t_AS
t_AH
DQM
DQ
t_RCD
t_RRD
t_DAL
RC
QAa0 QAa1 QAa2 QAa3 QBa0 QBa1 QBa2 QBa3
Activate
Command
Bank A
Write with Activate
Auto Precharge Command
Command Bank B
Bank A
Write with
Auto Precharge
Command
Bank B
Activate
Command
Bank A
BS1=”L”, Bank C,D = Idle
t_DS
t_DH
t_DPL
t_RP
QAb0 QAb1 QAb2 QAb3
Write without
Auto Precharge
Command
Bank A
Precharge
Command
Bank A
Activate
Command
Bank A
Integrated Circuit Solution Inc.
31
DR023-0E 6/11/2004