IS42S32200E-7B-TR ISSI, Integrated Silicon Solution Inc, IS42S32200E-7B-TR Datasheet - Page 38
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IS42S32200E-7B-TR
Manufacturer Part Number
IS42S32200E-7B-TR
Description
IC SDRAM 64MBIT 143MHZ 90BGA
Manufacturer
ISSI, Integrated Silicon Solution Inc
Type
SDRAMr
Specifications of IS42S32200E-7B-TR
Format - Memory
RAM
Memory Type
SDRAM
Memory Size
64M (2Mx32)
Speed
143MHz
Interface
Parallel
Voltage - Supply
3.15 V ~ 3.45 V
Operating Temperature
0°C ~ 70°C
Package / Case
90-BGA
Organization
2Mx32
Density
64Mb
Address Bus
13b
Access Time (max)
8/5.5ns
Maximum Clock Rate
143MHz
Operating Supply Voltage (typ)
3.3V
Package Type
TFBGA
Operating Temp Range
0C to 70C
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Supply Current
140mA
Pin Count
90
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
IS42S32200E, IS45S32200E
Notes:
1. If CS is High at clock High time, all commands applied are NOP.
2. The Mode Register may be loaded prior to the Auto-Refresh cycles, if desired.
3. JEDEC and PC100 specify three clocks.
4. Outputs are guaranteed High-Z after the command is issued.
38
INITIALIzE AND LOAD MODE REGISTER
DQM0-DQM3
COMMAND
BA0, BA1
A0-A9
CKE
CLK
A10
DQ
Power-up: V
and CLK stable
T = 100µs Min.
t
t
T
CKS
CMS
NOP
T0
t
t
CKH
CMH
t
CK
CC
SINGLE BANK
ALL BANKS
t
CMS
PRECHARGE
ALL BANKS
T1
Precharge
all banks
t
CMH
t
RP
t
CMS
REFRESH
Tn+1
AUTO
AUTO REFRESH
t
CMH
t
CH
NOP
t
RFC
(1)
t
CL
REFRESH
To+1
AUTO
AUTO REFRESH
Integrated Silicon Solution, Inc. — www.issi.com
NOP
t
RFC
t
t
Load MODE
REGISTER
AS
AS
CODE
CODE
Tp+1
Program MODE REGISTER
t
t
AH
AH
t
Tp+2
NOP
MRD
DON'T CARE
ACTIVE
BANK
ROW
ROW
Tp+3
07/12/2010
Rev. D