is42s16100c1 Integrated Silicon Solution, Inc., is42s16100c1 Datasheet - Page 19

• Manufacturer Part Number: is42s16100c1
• Description: 512k Words X 16 Bits X 2 Banks 16-mbit Synchronous Dynamic Ram
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S16100C1
TWO BANKS OPERATION COMMAND TRUTH TABLE
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:
3. CA: A8,A9 = don’t care.
Integrated Silicon Solution, Inc. — www.issi.com —
Rev. D
11/03/06
Operation
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS
I
A
R
W
RP
WP
Any Any State
Idle (inactive state)
Row Active State
Read
Write
Read With Auto-Precharge
Write With Auto-Precharge
CS
CS
CS
CS
CS RAS
H
L
L
L
L
L
L
L
L
RAS
RAS
RAS
RAS CAS
X
H
H
H
H
L
L
L
L
CAS
CAS
CAS
CAS WE
X
H
H
H
H
L
L
L
L
WE
WE
WE A11 A10 A9-A0
WE
X
H
H
H
H
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
RA RA
X
X
X
H CA
H CA
H CA
H CA
H CA
H CA
H CA
H CA
H
H
X
L CA
L CA
L CA
L CA
L CA
L CA
L CA
L CA
L
L
L
L
1-800-379-4774
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)
Previous State
BANK 0BANK 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
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 0BANK 1
R/W/A/I
Next State
Any
Any
Any
WP
WP
I/A
I/A
I/A
I/A
RP
RP
I/A
I/A
I/A
W
W
A
A
A
R
R
A
A
A
I
I
I
I
I
I
I
R/W/A/I
Any
Any
Any
WP
WP
I/A
I/A
RP
RP
I/A
I/A
I/A
I/A
I/A
W
W
A
A
R
R
A
A
A
A
I
I
I
I
I
I
I
ISSI
19
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