IS42S32800D-7BI ISSI, Integrated Silicon Solution Inc, IS42S32800D-7BI Datasheet - Page 48

• 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

IS42S32800D
48
Figure 16.3.Auto Precharge after Read Burst (Burst Length=4,CAS#Latency=3)
BS0,1
A 0-A9
RAS#
CAS#
DQM
WE#
CKE
CLK
CS#
A10
DQ
High
Hi-Z
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
t
CK3
Command
Bank A
Read
CAx
Command
Activate
Bank B
RBx
RBx
Ax0
Auto Precharge
Read with
Command
Bank B
CBx
Ax1
Ax2
Ax3
Bx0
Auto Precharge
Read with
Command
Bank A
CA y
Bx1
Integrated Silicon Solution, Inc. — www.issi.com
Bx2
Bx3
Command
Activate
Bank B
RBy
RBy
Ay0
Ay1
Ay2
Auto Precharge
Read with
Command
Bank B
CBy
Ay3
By0
By1
By2
Rev. 00B
11/21/07
By3