IS42S32800B-6B ISSI, Integrated Silicon Solution Inc, IS42S32800B-6B Datasheet - Page 26

• Manufacturer Part Number: IS42S32800B-6B
• Description: IC SDRAM 256MBIT 166MHZ 90BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S32800B-6B

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 256M (8Mx32)
• Speed: 166MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 90-BGA
• Organization: 8Mx32
• Density: 256Mb
• Address Bus: 14b
• Access Time (max): 5.5ns
• Maximum Clock Rate: 166MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: BGA
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 180mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IS42S32800B
26
Figure 3.Auto Refresh (CBR)(Burst Length=4,CAS#Latency=2)
A0-A9
BS0,1
RAS#
CAS#
CS#
WE#
CLK
CKE
DQM
A10
DQ
DQ
Precharge All
T0
Command
t
T1
CK2
t
RP
T2
Auto Refresh
Command
T3 T4 T5 T6 T7
t
RC
Auto Refresh
T8
Command
T9
T10
T11
t
T12
RC
T13
T14
Command
Activate
Bank A
RAx
RAx
T15 T16 T17 T18 T19
Command
Integrated Silicon Solution, Inc.
Bank A
Read
CAx
Ax0
Ax1
T20
Ax2
T21
Ax3
T22
07/21/09
Rev. F