IS42S16100E, IC42S16100E
(1,2)
TWO BANKS OPERATION COMMAND TRUTH TABLE
Previous State
Next State
Operation
DESL
NOP
CS RAS CAS WE A11 A10A9-A0 BANK 0BANK 1 BANK 0BANK 1
H
L
L
X
H
H
X
H
H
X
H
L
X
X
X
X
X
X
X
X
X
Any
Any
Any
Any
Any
Any
Any
Any
BST
R/W/A
I/A
I/A
R/W/A
I
A
I
I/A
I/A
I/A
I/A
A
I
I/A
I/A
I
READ/READA
L
L
H
H
L
L
H
H
H
H
H
L
L
L
L
H CA(3)
H CA(3)
I/A
R/W
I/A
R/W
R/W/A
A
R/W/A
A
R/W/A
A
I/A
R/W
I/A
I/A
A
I/A
A
RP
RP
R
RP
RP
R
R
I/A
A
L
L
CA(3)
CA(3)
H CA(3)
H CA(3)
L
L
CA(3)
CA(3)
R/W/A
A
I/A
A
R/W
R
WRIT/WRITA
L
H
H
H
H
L
L
L
L
H CA(3)
H CA(3)
I/A
R/W
I/A
R/W
R/W/A
A
R/W/A
A
R/W/A
A
I/A
R/W
I/A
I/A
A
I/A
A
WP
WP
W
WP
WP
W
W
I/A
A
L
L
CA(3)
CA(3)
H CA(3)
H CA(3)
L
L
CA(3)
CA(3)
R/W/A
A
I/A
A
R/W
W
ACT
L
L
L
L
H
H
H
L
H
L
RA RA
RA RA
Any
I
I
Any
A
A
Any
Any
PRE/PALL
X
X
H
H
L
H
H
L
L
L
L
X
X
X
X
X
X
R/W/A/I I/A
I/A R/W/A/I
I/A R/W/A/I
R/W/A/I I/A
R/W/A/I I/A
I/A R/W/A/I
I
I
I
I
I
I
I/A
R/W/A/I
I
I
I/A
R/W/A/I
L
REF
L
L
L
L
L
L
H
L
X
X
X
I
I
I
I
I
I
I
I
MRS
OPCODE
Notes:
1. H: HIGH level input, L: LOW level input, X: HIGH or LOW level input, RA: Row Address, CA: Column Address
2. The device state symbols are interpreted as follows:
I
Idle (inactive state)
Row Active State
Read
A
R
W
Write
RP Read With Auto-Precharge
WP Write With Auto-Precharge
Any Any State
3. CA: A8,A9 = don’t care.
Integrated Silicon Solution, Inc. — www.issi.com
19
Rev. C
01/22/08
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
