is42s16800al-7tli Integrated Silicon Solution, Inc., is42s16800al-7tli Datasheet - Page 12

• Manufacturer Part Number: is42s16800al-7tli
• Description: 128-mbit Low-power Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

Note: H=V
IS42S81600AL, IS42S16800AL, IS42S32400AL
IS42LS81600AL, IS42LS16800AL, IS42LS32400AL
FUNCTIONAL TRUTH TABLE
Idle
Row Active
Read
Write
12
IH
, L=V
IL
x= V
CS
CS
CS
CS
CS
H
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
IH
or V
X
H
H
H
H
L
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
RAS
RAS
RAS
RAS
RAS CAS
IL
, V = Valid Data, BA= Bank Address, CA+Column Address, RA=Row Address, OC= Op-Code
CAS
CAS
CAS
CAS
X
H
H
L
L
H
H
L
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
L
H
L
H
L
H
L
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
WE
WE
WE
WE
WE
Integrated Silicon Solution, Inc. — www.issi.com —
Address
X
X
X
BA, CA, A10
A, CA, A10
BA, RA
BA, A10
X
OC, BA1=L
OC, BA1=H
X
X
X
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
X
OC, BA
X
X
X
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
X
OC, BA
X
X
X
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
X
OC, BA
WRIT/ WRITA
WRIT/ WRITA
Command
DESL
NOP
BST
READ/READA
ACT
PRE/PALL
REF
MRS
EMRS
DESL
NOP
BST
READ/READA
ACT
PRE/PALL
REF
MRS/EMRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS/EMRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS/EMRS
PRELIMINARY
Precharge/Precharge all banks
Action
Nop
Nop
Nop
ILLEGAL
ILLEGAL
Row activating
Nop
Auto refresh
Mode register set
Extended mode register set
Nop
Nop
Nop
Begin read
Begin write
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end to
Row active
Continue burst to end Row
Row active
Burst stop Row active
Terminate burst,
begin new read
Terminate burst,
begin write
ILLEGAL
Terminate burst
Precharging
ILLEGAL
ILLEGAL
Continue burst to end
Write recovering
Continue burst to end
Write recovering
Burst stop Row active
Terminate burst, start read :
Determine AP
Terminate burst, new write :
Determine AP
ILLEGAL
Terminate burst Precharging
ILLEGAL
ILLEGAL
INFORMATION
(2)
(2)
(2)
(2)
(2)
(3)
(5, 6)
(3)
ISSI
(5, 6)
(5)
1-800-379-4774
(5)
Rev. 00A
09/18/03
(
®
(7)