is42s16800a-7tli Integrated Silicon Solution, Inc., is42s16800a-7tli Datasheet - Page 34

• Manufacturer Part Number: is42s16800a-7tli
• Description: 16meg X 8, 8meg X16 & 4meg X 32 128-mbit Synchronous Dram - Integrated Silicon Solution, Inc
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S81600A, IS42S16800A, IS42S32400A
Notes:
1) CAS latency = 2, Burst Length = 4
2) X16: A9 and A11 = "Don't Care"
34
ALTERNATING BANK READ ACCESSES
X32: A8, A9, and A11 = "Don't Care"
DQML, DQMH
COMMAND
A0-A9, A11
BA0, BA1
DQM/
CKE
CLK
A10
DQ
t
t
CKS
CMS
t
t
t
BANK 0
AS
AS
AS
ACTIVE
ROW
ROW
T0
t
CKH
t
t
t
t
AH
AH
AH
CMH
t
t
t
t
RCD
RRD
RAS
RC
t
- BANK 0
CK
- BANK 0
- BANK 0
ENABLE AUTO PRECHARGE
T1
NOP
t
t
CMS
CL
COLUMN m
BANK 0
READ
T2
t
CMH
t
Integrated Silicon Solution, Inc. — www.issi.com —
CH
xx
(2)
CAS Latency - BANK 0
T3
NOP
t
LZ
t
AC
xx
BANK 3
ACTIVE
ROW
ROW
T4
D
OUT
t
OH
m
t
AC
t
RCD
x
- BANK 3
ENABLE AUTO PRECHARGE
T5
D
NOP
OUT
t
OH
m+
t
1
AC
COLUMN b
BANK 3
READ
T6
D
OUT
x
t
OH
m+
t
(2)
RP
t
2
AC
CAS Latency - BANK 3
- BANK 0
PRELIMINARY INFORMATION Rev. 00C
T7
D
NOP
OUT
t
OH
m+
t
3
x x x
AC
BANK 0
ACTIVE
ISSI
ROW
T8
ROW
DON'T CARE
D
1-800-379-4774
OUT
t
OH
t
b
RCD
t
AC
- BANK 0
01/20/05
®