IS42S32800B-7BL INTEGRATED SILICON SOLUTION (ISSI), IS42S32800B-7BL Datasheet - Page 49

• Manufacturer Part Number: IS42S32800B-7BL
• Description: IC, SDRAM, 256MBIT, 143MHZ, BGA-90
• Manufacturer: INTEGRATED SILICON SOLUTION (ISSI)

Specifications of IS42S32800B-7BL

• Memory Type: DRAM - Sychronous
• Access Time: 7ns
• Page Size: 256Mbit
• Ic Interface Type: Parallel
• Memory Case Style: BGA
• No. Of Pins: 90
• Operating Temperature Range: 0°C To +70°C
• Termination Type: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IS42S32800B
Integrated Silicon Solution, Inc.
Rev. F
07/21/09
Figure 17.2.Auto Precharge after Write Burst (Burst Length=4,CAS#Latency=2)
A0-A9
BS0,1
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
Command
Bank A
CK2
Write
DAx0 DAx1 DAx2 DAx3
CAx
Command
Activate
Bank B
RBx
RBx
Auto Precharge
Write with
Command
Bank B
DBx0 DBx1 DBx2 DBx3
CBx
Auto Precharge
Write with
Command
Bank A
DAy0
CAy
DAy1 DAy2
Command
Activate
Bank B
DAy3
RBy
RBy
Auto Precharge
Write with
Command
Bank B
DBy0 DBy1 DBy2 DBy3
CBy
Command
Activate
Bank A
RAz
RAz
Auto Precharge
Write with
DAz0 DAz1 DAz2 DAz3
Command
CAz
Bank A
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