IS42S32800B-7BL INTEGRATED SILICON SOLUTION (ISSI), IS42S32800B-7BL Datasheet - Page 30

• 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
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Figure 6.3.Clock Suspension During Burst Read (Using CKE)
BS0,1
Note:CKE to CLK disable/enable =1 clock
CAS#
A0-A9
RAS#
DQM
WE#
CKE
CLK
CS#
A10
DQ Hi-Z
Hi-Z
(Burst Length=4,CAS#Latency=3)
T0
Command
Activate
Bank A
RAx
RAx
T 1
t
CK3
T 2
T3 T4
Command
Bank A
Read
CAx
T5 T6
Ax0
T7 T8
Clock Suspend
1 Cycle
Ax1
T9 T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Clock Suspend
2 Cycle
Ax2
Clock Suspend
3 Cycle
Ax3
t
HZ
Integrated Silicon Solution, Inc.
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07/21/09
Rev. F
®