IS42S32800B-7TI-TR ISSI, Integrated Silicon Solution Inc, IS42S32800B-7TI-TR Datasheet - Page 38

• Manufacturer Part Number: IS42S32800B-7TI-TR
• Description: IC SDRAM 256MBIT 143MHZ 86TSOP
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S32800B-7TI-TR

• 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: 86-TSOPII
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IS42S32800B
38
Figure 11.3.Random Row Read (Interleaving Banks)
BS0,1
CAS#
A0-A9
DQM
RAS#
WE#
CKE
CLK
CS#
A10
DQ
High
Hi-Z
Command
Activate
Bank B
RBx
RBx
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=8,CAS#Latency=3)
t
CK3
t
RCD
Command
Bank B
Read
CBx
t
AC3
Bx0
Bx1 Bx2
Command
Activate
Bank A
RAx
RAx
Bx3
Bx4
Command
Bank A
Read
CAx
Bx5
Bx6
Precharge
Command
Bank B
Bx7
Ax0 Ax1
t
RP
Command
Activate
Bank B
RBy
RBy
Ax2
Integrated Silicon Solution, Inc.
Ax3
Ax4 Ax5
Command
Bank B
Read
CBy
Ax6
Precharge
Command
Bank A
Ax7
By0
07/21/09
Rev. F