is43lr32200b-6bl Integrated Silicon Solution, Inc., is43lr32200b-6bl Datasheet - Page 3

• Manufacturer Part Number: is43lr32200b-6bl
• Description: 512k X 32bits X 4banks Mobile Ddr Sdram
• Manufacturer: Integrated Silicon Solution, Inc.

Rev. 00A | Feb. 2011
Table2 : Pin Descriptions
CK, /CK
CKE
/CS
BA0, BA1
A0~A10
/RAS, /CAS, /WE
DM0~DM3
DQ0~DQ31
DQS0~DQS3
VDD
VSS
VDDQ
VSSQ
NC
Symbol
In/Output
In/Output
Supply
Supply
Supply
Supply
Type
Input
Input
Input
Input
Input
Input
Input
NC
System Clock
Clock Enable
Chip Select
Bank Address
Address
Row Address Strobe,
Column Address Strobe,
Write Enable
Data Input Mask
Data Input/Output
Data Input/Output
Strobe
Power Supply
Ground
DQ Power Supply
DQ Ground
No Connection
Function
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The system clock input. CK and /CK are differential clock
inputs. All address and control input signals are registered on
the crossing of the rising edge of CK and falling edge of /CK.
Input and output data is referenced to the crossing of CK and
/CK.
CKE is clock enable controls input. CKE HIGH activates, and
CKE LOW deactivates internal clock signals, and device input
buffers and output drivers. CKE is synchronous for all functions
except for SELF REFRESH EXIT, which is achieved
asynchronously.
/CS enables (registered Low) and disables (registered High)
the command decoder. All commands are masked when /CS
IS REGISTERED high. /CS provides for external bank selection
on systems with multiple banks. /CS is considered part of the
command code.
BA0 and BA1 define to which bank an ACTIVE, READ, WRITE,
or PRECHARGE command is being applied. BA0 and BA1 also
determine which mode register (standard mode register or
extended mode register) is loaded during a LOAD MODE
REGISTER command.
Row Address
Column Address
Auto Precharge
/RAS, /CAS and /WE define the operation.
Refer function truth table for details.
DM is an input mask signal for write data. Input data
is masked when DM is sampled HIGH along with that input
data during a WRITE access. DM is sampled on both edges of
DQS. Although DM balls are input-only.
Data input/output pin.
Output with read data, input with write data. DQS is edge-
aligned with read data, centered in write data. Data strobe is
used to capture data.
Power supply
Ground
Power supply for DQ
Ground for DQ
No connection.
: A10
: RA0~RA10
: CA0~CA7
Descriptions
IS43/46LR32200B
Advanced Information
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