IS42S32800D-7B-TR ISSI, Integrated Silicon Solution Inc, IS42S32800D-7B-TR Datasheet - Page 7

• Manufacturer Part Number: IS42S32800D-7B-TR
• Description: IC SDRAM 256MBIT 143MHZ 90BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S32800D-7B-TR

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 256M (8Mx32)
• Speed: 143MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°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: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 150mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

DQM TRUTH TABLE
IS42S32800D, IS45S32800D
COMMAND TRUTH TABLE
Note: H=V
Note: H=V
Integrated Silicon Solution, Inc. - www.issi.com
Rev. C
12/01/09
Function
Data write / output enable
Data mask / output disable
Upper byte write enable / output enable
Lower byte write enable / output enable
Upper byte write inhibit / output disable
Lower byte write inhibit / output disable
Function
Device deselect (DESL)
No operation (NOP)
Burst stop (BST)
Read
Read with auto precharge
Write
Write with auto precharge
Bank activate (ACT)
Precharge select bank (PRE) H
Precharge all banks (PALL)
CBR Auto-Refresh (REF)
Self-Refresh (SELF)
Mode register set (MRS)
ih
ih
, L=V
, L=V
il
il
x= V
x= V
ih
ih
or V
or V
il
il
, V = Valid Data.
, V = Valid Data.
n – 1
CKE
H
H
H
H
H
H
H
H
H
H
H
H
H
n
×
×
×
×
×
×
×
×
×
×
L
×
CS
H
L
L
L
L
L
L
L
L
L
L
L
L
CKE
n-1
H
H
H
H
H
H
RAS
H
H
H
H
H
H
×
L
L
L
L
L
L
n
×
×
×
×
×
×
CAS
H
H
H
H
H
×
L
L
L
L
L
L
L
WE
H
H
H
H
H
H
×
L
L
L
L
L
L
DQM
U
L
H
L
×
H
×
BA1
V
V
V
V
V
V
×
×
×
×
×
×
L
BA0
L
L
H
×
L
×
H
V
V
V
V
V
×
×
×
×
×
×
L
V
A10
H
H
H
×
×
×
V
×
×
L
L
L
L
A9 - A0
V
V
V
V
V
V
A11
×
×
×
×
×
×
×
7