IS42S32800D-7BI ISSI, Integrated Silicon Solution Inc, IS42S32800D-7BI Datasheet - Page 57
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IS42S32800D-7BI
Manufacturer Part Number
IS42S32800D-7BI
Description
IC SDRAM 256MBIT 143MHZ 90BGA
Manufacturer
ISSI, Integrated Silicon Solution Inc
Type
SDRAMr
Specifications of IS42S32800D-7BI
Format - Memory
RAM
Memory Type
SDRAM
Memory Size
256M (8Mx32)
Speed
143MHz
Interface
Parallel
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
90-BGA
Organization
8Mx32
Density
256Mb
Address Bus
13b
Access Time (max)
6.5/5.4ns
Maximum Clock Rate
143MHz
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
-40C to 85C
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Supply Current
150mA
Pin Count
90
Mounting
Surface Mount
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
IS42S32800D-7BI
Manufacturer:
ISSI, Integrated Silicon Solution Inc
Quantity:
10 000
Company:
Part Number:
IS42S32800D-7BI-TR
Manufacturer:
ISSI, Integrated Silicon Solution Inc
Quantity:
10 000
IS42S32800D
Integrated Silicon Solution, Inc. — www.issi.com
Rev. 00B
11/24/07
Figure 23.Full Page Random Column Write (Burst Length=Full Page,CAS#Latency=2)
BS0,1
CAS#
A0-A9
DQM
RAS#
WE#
CKE
CLK
CS#
A10
DQ
T0 T 1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Command
Activate
Bank A
RAx
RAx
t
t
RRD
CK2
Command
Activate
Bank B
RBx CAx
RBx
Command
Bank A
t
DAx0 DBx0 DAy0 DAy1 DBy0 DBy1 DAz0 DAz1 DAz2 DBz0
Write
RCD
Command
Bank B
Write
CBx
Command
Bank A
Write
CAy
Command
Bank B
Write
CBy
Command
Bank A
Write
CAz
Command
Bank B
Write
CBz
DBz1 DBz2
(Precharge Temination)
Command Bank B
t
Precharge
WR
Write Data
is masked
t
RP
Command
Activate
Bank B
RBw
RBw
57