IS42S81600D-7TL INTEGRATED SILICON SOLUTION (ISSI), IS42S81600D-7TL Datasheet - Page 34
![IC, SDRAM, 128MBIT, 143MHZ, TSOP-54](/photos/19/4/190473/4612938_sml.jpg)
IS42S81600D-7TL
Manufacturer Part Number
IS42S81600D-7TL
Description
IC, SDRAM, 128MBIT, 143MHZ, TSOP-54
Manufacturer
INTEGRATED SILICON SOLUTION (ISSI)
Datasheet
1.IS42S16800D-7TL.pdf
(62 pages)
Specifications of IS42S81600D-7TL
Memory Type
DRAM - Sychronous
Memory Configuration
16M X 8
Access Time
7ns
Page Size
128Mbit
Ic Interface Type
Parallel
Memory Case Style
TSOP
No. Of Pins
54
Rohs Compliant
Yes
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IS42S81600D,
34
Notes:
1) CAS latency = 2, Burst Length = 4
2) X16: A9 and A11 = "Don't Care"
ALTERNATING BANK READ ACCESSES
DQML, DQMH
X8: A11 = "Don't Care"
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
IS42S16800D
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
CH
(2)
CAS Latency - BANK 0
T3
NOP
t
LZ
t
AC
BANK 3
ACTIVE
ROW
ROW
T4
D
OUT
t
OH
m
t
AC
Integrated Silicon Solution, Inc. — www.issi.com
t
RCD
- BANK 3
ENABLE AUTO PRECHARGE
T5
D
NOP
OUT
t
OH
m+
t
1
AC
COLUMN b
BANK 3
READ
T6
D
OUT
t
OH
m+
t
(2)
RP
t
2
AC
CAS Latency - BANK 3
- BANK 0
T7
D
NOP
OUT
t
OH
m+
t
3
AC
BANK 0
ACTIVE
ROW
T8
ROW
DON'T CARE
D
OUT
t
OH
b
t
RCD
t
AC
- BANK 0
07/28/08
Rev. E
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