ic42s16101-7tig ETC-unknow, ic42s16101-7tig Datasheet - Page 18

• Manufacturer Part Number: ic42s16101-7tig
• Description: 512k X 16 Bit X 2 Banks 16-mbit Sdram
• Manufacturer: ETC-unknow

IC42S16101
TWO BANKS OPERATION COMMAND TRUTH TABLE
18
Operation
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS
3. CA: A8,A9 = don't care.
Notes:
1. H: HIGH level input, L: LOW level input, X: HIGH or LOW level input, RA: Row Address, CA: Column
2. The device state symbols are interpreted as follows:
I
A
R
W
RP
WP
Any
Address
Idle (inactive state)
Row Active State
Read
Write
Read With Auto-Precharge
Write With Auto-Precharge
Any State
CS
CS
CS RAS
CS
CS
H
L
L
L
L
L
L
L
L
RAS
RAS
RAS CAS
RAS
H
H
H
H
X
L
L
L
L
CAS
CAS
CAS
CAS WE
X
H
H
H
H
L
L
L
L
WE
WE A11 A10 A9-A0
WE
WE
H
H
H
H
X
L
L
L
L
X
X
X
H
H
H
H
H
H
H
H
H
X
X
H
H
X
L
L
L
L
L
L
L
L
L
L
L
OPCODE
RA
RA
X
X
X
H
H
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
L
L
L
L
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
RA
RA
X
X
X
X
X
X
X
X
X
X
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
BANK 0 BANK 1
R/W/A/I
R/W/A/I
R/W/A/I
R/W/A
R/W/A
R/W/A
R/W/A
R/W/A
Previous State
R/W
R/W
R/W
R/W
Any
Any
Any
I/A
I/A
I/A
I/A
I/A
I/A
I/A
I/A
I/A
A
A
A
A
I
I
I
I
(1,2)
R/W/A/I
R/W/A/I
R/W/A/I
R/W/A
R/W/A
R/W/A
R/W/A
R/W/A
R/W
R/W
R/W
R/W
Any
Any
Any
I/A
I/A
I/A
I/A
I/A
I/A
I/A
I/A
I/A
A
A
A
A
I
I
I
I
BANK 0 BANK 1
R/W/A/I
Next State
Any
Any
WP
WP
Any
Integrated Circuit Solution Inc.
RP
RP
I/A
I/A
I/A
I/A
I/A
I/A
I/A
W
W
R
R
A
A
A
A
A
A
I
I
I
I
I
I
I
R/W/A/I
Any
Any
Any
WP
WP
RP
RP
I/A
I/A
I/A
I/A
I/A
I/A
I/A
W
W
A
R
R
A
A
A
A
A
I
I
I
I
I
I
I
DR025-0F 01/17/2005