IC42S81600 Datasheet, PDF (11/69 Pages) Integrated Circuit Solution Inc – 4(2)M x 8(16) Bits x 4 Banks (128-MBIT) SYNCHRONOUS DYNAMIC RAM

IC42S81600/IC42S81600L
IC42S16800/IC42S16800L
COMMAND TRUTH TABLE
Symbol
DESL
NOP
MRS
ACT
READ
READA
WRIT
WRITA
PRE
PALL
BST
REF
SELF
Command
Device deselect
No operation
Mode register set
Bank activate
Read
Read with auto precharge
Write
Write with auto precharge
Precharge select bank
Precharge all banks
Burst stop
CBR (Auto) refresh
Self refresh
CKE
n-1 n
HX
HX
HX
HX
HX
HX
HX
HX
HX
HX
HX
HH
HL
Notes:
H : High level
X : High or Low level (Don’t care)
L : Low level
V : Valid Data input
A11
CS RAS CAS WE BA A10 A9-A0
HXXXXXX
LHHHXXX
L L L L L LV
L LHHVVV
LHLHVLV
L H L HVHV
LHL L VLV
LHL LVHV
L LHL VLX
L LHL XHX
L HHL XXX
L L LHXXX
L L LHXXX
DQM TRUTH TABLE
Symbol
ENB
MASK
Command
Data Write / Output Enable
Data Mask / Output Disable
CKE
n-1
n
H
X
H
X
DQM
L
H
CKE TRUTH TABLE
Symbol
—
—
—
REF
SELF
—
Command
Clock suspend mode entry
Clock suspend
Clock suspend mode exit
CBR refresh command
Self refresh entry
Self refresh exit
—
Power down entry
—
Power down exit
Current State
Activating
Any
Clock suspend
Idle
Idle
Self refresh
Idle
Power down
CKE
n-1 n
HL
LL
LH
HH
HL
LH
LH
HL
LH
CS RAS CAS WE
XXXX
XXXX
XXXX
LLLH
LLLH
L HHH
HXXX
XXXX
XXXX
Addreess
X
X
X
X
X
X
X
X
X
Integrated Circuit Solution Inc.
11
DR023-0E 6/11/2004