IC42Sxxxxx Integrated Circuit Solution, IC42Sxxxxx Datasheet - Page 31

• Manufacturer Part Number: IC42Sxxxxx
• Description: 4M x 8M x 4 Banks SDRAM
• Manufacturer: Integrated Circuit Solution

IC42S81600/IC42S81600L
IC42S16800/IC42S16800L
AC Parameters for Write Timing (2 of 2)
BS1=”L”, Bank C,D = Idle
Integrated Circuit Solution Inc.
DR023-0E 6/11/2004
ADD
*BS0
DQM
CKE
RAS
CAS
CLK
A10
WE
DQ
CS
t
CH
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 T23
t
CKS
t
CL
t AS
Activate
Command
Bank A
t
CMS
t
t AH
CMH
t RCD
Auto Precharge
Command
t
t
Write with
CK3
RRD
Bank A
QA a 0 QA a 1 QA a 2 QA a 3 QB a 0 QB a 1 QB a 2 QB a 3
Activate
Command
Bank B
RC
Auto Precharge
Command
Write with
Bank B
Begin Auto Precharge
Bank A
t
DAL
Activate
Command
Bank A
Begin Auto Precharge
Bank B
Write without
Auto Precharge
Command
Bank A
t DS
QA b 0 QA b 1 QA b 2 QA b 3
t
DH
Burst Length=4, CAS Latency=3
t
DPL
Precharge
Command
Bank A
t
RP
Command
Activate
Bank A
t
CKH
31