IS42S32800B-6B ISSI, Integrated Silicon Solution Inc, IS42S32800B-6B Datasheet - Page 2

• Manufacturer Part Number: IS42S32800B-6B
• Description: IC SDRAM 256MBIT 166MHZ 90BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S32800B-6B

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 256M (8Mx32)
• Speed: 166MHz
• 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: 14b
• Access Time (max): 5.5ns
• Maximum Clock Rate: 166MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: BGA
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 180mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IS42S32800B
2
FUNCTIONAL BLOCK DIAGRAM
A 1 0 / A P
A 0
A 9
A 1 1
B S 0
B S 1
CLK
C K E
C S #
R A S #
C A S #
W E #
D Q 0
D Q 31
D E C O D E R
C O U N TE R
A D D R E S S
COMMAND
COLUMN
R E F R E S H
C O U N T E R
B U F F E R
B U F F E R
C L O C K
B U F F E R
D Q M 0 ~ 3
G E N E R AT O R
D Q
C O N T R O L
R E G I S T E R
S I G N A L
M O D E
C o l u m n D e c o d e r
Integrated Silicon Solution, Inc.
4 0 9 6 X 5 1 2 X 3 2
4 0 9 6 X 5 1 2 X 3 2
Column Decoder
Col um n
Sense
4096 X 512 X 32
C E L L A R R AY
Sense
Column
Sense Amplifier
C E L L A R R AY
Sense
4096 X 512 X 32
CELL ARRAY
( B A N K # 0 )
( B A N K # 1 )
(BANK #2)
CELL ARRAY
(BANK #3)
Amplifier
Amplifier
Amplifier
Decoder
Decoder
07/21/09
Rev. F