IS42S32800B-7BL INTEGRATED SILICON SOLUTION (ISSI), IS42S32800B-7BL Datasheet - Page 32

• 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
32
I
Figure 7.3.Clock Suspension During Burst Write (Using CKE)
BS0,1
CAS#
A0-A9
DQM
RAS#
WE#
CKE
CLK
CS#
A10
DQ Hi-Z
Note:CKE to CLK disable/enable =1 clock
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
(Burst Length=4,CAS#Latency=3)
Command
Activate
Bank A
RAx
RAx
t
CK3
Command
Bank A
Write
DAx0
CAx
Clock Suspend
1 Cycle
DAx1
Clock Suspend
2 Cycle
DAx2
Clock Suspend
3 Cycle
DAx3
Integrated Silicon Solution, Inc.
I
07/21/09
Rev. F
®