IS42S16800D-7B-TR ISSI, Integrated Silicon Solution Inc, IS42S16800D-7B-TR Datasheet - Page 36

• 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,
READ - DQM OPERATION
36
Notes:
1) CAS latency = 2, Burst Length = 4
2) X16: A9 and A11 = "Don't Care"
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
ACTIVE
AS
AS
AS
BANK
ROW
ROW
T0
t
t
CKH
t
t
t
CMH
AH
AH
AH
IS42S16800D
t
CK
t
NOP
RCD
T1
DISABLE AUTO PRECHARGE
ENABLE AUTO PRECHARGE
t
t
CMS
CL
COLUMN m
READ
BANK
T2
t
CMH
t
CH
(2)
CAS Latency
NOP
T3
t
LZ
t
AC
NOP
T4
D
OUT
t
OH
t
HZ
m
Integrated Silicon Solution, Inc. — www.issi.com
NOP
T5
t
LZ
t
AC
NOP
D
T6
OUT
t
OH
m+
t
AC
2
DON'T CARE
UNDEFINED
NOP
T7
D
OUT
t
OH
m+
t
HZ
3
NOP
T8
07/28/08
Rev. E