IS42S16800D-7B-TR ISSI, Integrated Silicon Solution Inc, IS42S16800D-7B-TR Datasheet - Page 35

• Manufacturer Part Number: IS42S16800D-7B-TR
• Description: IC SDRAM 128MBIT 143MHZ 54BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S16800D-7B-TR

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 128M (8Mx16)
• Speed: 143MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 54-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IS42S81600D,
Notes:
1) CAS latency = 2, Burst Length = Full Page
2) X16: A9 and A11 = "Don't Care"
Integrated Silicon Solution, Inc. — www.issi.com
Rev. E
07/28/08
READ - FULL-PAGE BURST
DQML, DQMH
COMMAND
A0-A9, A11
X8: A11 = "Don't Care"
BA0, BA1
DQM/
CKE
CLK
A10
DQ
t
t
CKS
CMS
t
t
t
ACTIVE
AS
AS
AS
BANK
ROW
ROW
T0
t
t
CKH
CMH
t
t
t
AH
AH
AH
t
IS42S16800D
CK
t
RCD
T1
NOP
t
t
CMS
CL
COLUMN m
BANK
READ
T2
t
CMH
t
CH
(2)
CAS Latency
NOP
T3
t
LZ
t
AC
NOP
T4
D
OUT
t
OH
each row (x4) has
1,024 locations
m
t
AC
NOP
T5
D
OUT
t
OH
m+
t
1
AC
Full page
completion
NOP
T6
D
OUT
t
OH
t
m+
AC
Full-page burst not self-terminating.
Use BURST TERMINATE command.
2
Tn+1
NOP
D
OUT
t
OH
m-
t
1
AC
BURST TERM
Tn+2
D
OUT
t
OH
m
t
AC
Tn+3
NOP
D
OUT
t
DON'T CARE
UNDEFINED
OH
m+
t
HZ
1
Tn+4
NOP
35