IS42S32800B-7BLI ISSI, Integrated Silicon Solution Inc, IS42S32800B-7BLI Datasheet - Page 29

• Manufacturer Part Number: IS42S32800B-7BLI
• Description: IC SDRAM 256MBIT 143MHZ 90BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S32800B-7BLI

• 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: 14b
• Access Time (max): 5.5ns
• Maximum Clock Rate: 143MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: BGA
• 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: Lead free / RoHS Compliant

IS42S32800B
Integrated Silicon Solution, Inc.
Rev. F
07/21/09
Figure 6.2.Clock Suspension During Burst Read (Using CKE)
BS0,1
CAS#
A0-A9
DQM
RAS#
WE#
CKE
CLK
CS#
Note:CKE to CLK disable/enable =1 clock
A10
DQ
Hi-Z
Command
T0
Activate
Bank A
(Burst Length=4,CAS#Latency=2)
t
RAx
RAx
CK2
T 1 T2
Command
Bank A
Read
CAx
T3 T4
Ax0
Clock Suspend
T5 T6
1 Cycle
Ax1
T7 T8
Clock Suspend
2 Cycle
Ax2
T9 T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Clock Suspend
3 Cycle
Ax3
t
HZ
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