IC42S16102 Datasheet, PDF (13/78 Pages) Integrated Circuit Solution Inc – 512K x 16 Bit x 2 Banks (16-MBIT) SDRAM

IC42S16102
COMMAND TRUTH TABLE^(1,2)
Symbol
MRS
REF
SREF
PRE
PALL
ACT
WRIT
WRITA
READ
READA
BST
NOP
DESL
SBY
ENB
MASK
Command
Mode Register Set^(3,4)
Auto-Refresh⁽⁵⁾
Self-Refresh^(5,6)
Precharge Selected Bank
Precharge Both Banks
Bank Activate⁽⁷⁾
Write
Write With Auto-Precharge⁽⁸⁾
Read⁽⁸⁾
Read With Auto-Precharge⁽⁸⁾
Burst Stop⁽⁹⁾
No Operation
Device Deselect
Clock Suspend / Standby Mode
Data Write / Output Enable
Data Mask / Output Disable
CKE
n-1 n
HX
HH
HL
HX
HX
HX
HX
HX
HX
HX
HX
HX
HX
LX
HX
HX
CS RAS CAS WE DQM A11 A10 A9-A0 I/On
LLLLX
OP CODE
X
L L L H X X X X HIGH-Z
L L L H X X X X HIGH-Z
L L H L X BS L
X
X
LLHLXX H X
X
L L H H X BS Row Row
X
L H L L X BS
L Column⁽¹⁸⁾ X
L H L L X BS
H Column⁽¹⁸⁾ X
L H L H X BS
L Column⁽¹⁸⁾ X
L H L H X BS
H Column⁽¹⁸⁾ X
LHHLXX X X
X
LHHHXX X X
X
HXXXXX X X
X
XXXXXX X X
X
X X X X L X X X Active
X X X X H X X X HIGH-Z
DQM TRUTH TABLE^(1,2)
Symbol
ENB
MASK
ENBU
ENBL
MASKU
MASKL
Command
Data Write / Output Enable
Data Mask / Output Disable
Upper Byte Data Write / Output Enable
Lower Byte Data Write / Output Enable
Upper Byte Data Mask / Output Disable
Lower Byte Data Mask / Output Disable
CKE
n-1 n
HX
HX
HX
HX
HX
HX
DQM
UPPER LOWER
L
L
H
H
L
X
X
L
H
X
X
H
CKE TRUTH TABLE^(1,2)
Symbol
SPND
—
—
REF
SELF
SELFX
Command
Start Clock Suspend Mode
Clock Suspend
Terminate Clock Suspend Mode
Auto-Refresh
Start Self-Refresh Mode
Terminate Self-Refresh Mode
PDWN Start Power-Down Mode
—
Terminate Power-Down Mode
Current State
Active
Other States
Clock Suspend
Idle
Idle
Self-Refresh
Idle
Power-Down
CKE
n-1 n
HL
LL
LH
HH
HL
LH
LH
HL
HL
LH
CS RAS CAS WE A11 A10 A9-A0
XXXXXXX
XXXXXXX
XXXXXXX
L L LHXXX
L L LHXXX
L HHHX X X
HXXXXXX
L HHHX X X
HXXXXXX
XXXXXXX
Integrated Circuit Solution Inc.
13
DR042-0A 01/18/2005