IS42S32800B-6BL ISSI, Integrated Silicon Solution Inc, IS42S32800B-6BL Datasheet - Page 55

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

Specifications of IS42S32800B-6BL

• 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: FBGA
• 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: Lead free / RoHS Compliant

IS42S32800B
Integrated Silicon Solution, Inc.
Rev. F
07/21/09
Figure 20.Byte Write Operation (Burst Length=4,CAS#Latency=2)
DQ8 - DQ15
DQ0 - DQ7
DQM1,2,3
BS0,1
DQM0
A0-A9
CAS#
RAS#
WE#
CKE
CLK
CS#
A10
High
Command
Activate
Bank A
RAx
RAx
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
t
Bank A
CK2
Read
CAx
Upper 3 Bytes
are masked
Ax0
Ax1
Ax1
Lower Byte
is masked
Ax2
Ax2
Ax3
Command
Bank A
Write
DAy0 DAy1
CAy
DAy1 DAy2
Upper 3 Bytes
are masked
DAy3
Command
Bank A
CAz
Read
Lower Byte
is masked
Az1
Az1
Az2
Az2
Az3
Lower Byte
is masked
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