IS42S32800D-7B ISSI, Integrated Silicon Solution Inc, IS42S32800D-7B Datasheet - Page 33

• Manufacturer Part Number: IS42S32800D-7B
• Description: IC SDRAM 256MBIT 143MHZ 90BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S32800D-7B

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 256M (8Mx32)
• Speed: 143MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 90-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IS42S32800D
Integrated Silicon Solution, Inc. — www.issi.com
Rev. 00B
11/21/07
Figure 8.Power Down Mode and Clock Mask (Burst Lenght=4,
CAS#Latency=2)
BS0,1
CAS#
A0-A9
DQM
RAS#
WE#
CKE
CS#
CLK
A10
DQ
Hi-Z
T0 T 1 T2
Command
Activate
Bank A
RAx
RAx
t
Power Down
CK2
Mode Entry
STANDBY
ACTIVE
T3
t
IS
Power Down
T4
Mode Exit
T5
Command
Bank A
CAx
Read
T6
T7
Ax0
T8
Clock Mask
Start
Ax1
T9
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Clock Mask
Ax2
End
t
HZ
Ax3
Valid
Power Down
Mode Entry
Precharge
Command
Bank A
PRECHARGE
STANDBY
t
PDE
Power Down
Mode Exit
Command
Any
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