IS42S32800D-7BL ISSI, Integrated Silicon Solution Inc, IS42S32800D-7BL Datasheet - Page 22

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

Specifications of IS42S32800D-7BL

• 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: Lead free / RoHS Compliant
• Other names: 706-1083; IS42S32800D-7BL

IS42S32800D, IS45S32800D
Note:
1. Self-Refresh Mode is not supported for A2 grade with T
SELF-REFRESH CYCLE
22
DQM0 - DQM3
COMMAND
A0-A9, A11
BA0, BA1
active banks
Precharge all
CKE
CLK
A10
DQ
High-Z
SINGLE BANK
t
t
ALL BANKS
CKS
CMS
PRECHARGE
t
AS
BANK
T0
t
t
CKH
t
CMH
AH
t
CK
refresh mode
NOP
t
RP
Enter self
T1
t
CH
t
t
CL
CKS
Refresh
Auto
T2
a
CLK stable prior to exiting
> +85
self refresh mode
o
C.
≥ t
RAS
(Restart refresh time base)
Exit self refresh mode
Tn+1
NOP
Integrated Silicon Solution, Inc. - www.issi.com
t
NOP
CKS
t
XSR
To+1
To+2
Refresh
Auto
DON'T CARE
12/01/09
Rev. C