IC43R32400-4BG datasheet, PDF - EEWORLD Datasheet

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IC43R32400-4BG: DescriptionDRAM,; Categorystorage storage; File Size4MB，18 Pages; ManufacturerIntegrated Circuit Solution Inc.; Environmental Compliance

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IC43R32400-4BG Overview

DRAM,

IC43R32400-4BG Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Integrated Circuit Solution Inc.
package instruction	,
Reach Compliance Code	unknown
Base Number Matches	1

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IC43R32400

Document Title

1M x 32 Bit x 4 Banks (128-MBIT) DDR SDRAM

Revision History

Revision No

History

Initial Draft

Mass production

Draft Date

July 21,2004

November 10,2004

Remark

The attached datasheets are provided by ICSI. Integrated Circuit Solution Inc reserve the right to change the specifications and

products. ICSI will answer to your questions about device. If you have any questions, please contact the ICSI offices.

Integrated Circuit Solution Inc.

DDR003-0B 11/10/2004

IC43R32400

PIN DESCRIPTIONS

Table 1.Pin Details of IC43R32400

Symbol Type

CK,CK# Input

Description

Differential Clock:

CK, CK# are driven by the system clock. All SDRAM input commands are

sampled on the positive edge of CK. Both CK and CK# increment the internal burst counter and

controls the output registers.

Clock Enable:

CKE activates(HIGH)and deactivates(LOW)the CK signal.If CKE goes low synchro-

nously with clock,the internal clock is suspended from the next clock cycle and the state of output

and burst address is frozen as long as the CKE remains low.When all banks are in the idle state,

deactivating the clock controls the entry to the Power Down and Self Refresh modes.

Bank Select:

BA0 and BA1 defines to which bank the BankActivate,Read,Write,or BankPrecharge

command is being applied. They also define which Mode Register or Extended Mode Register is

loaded during a Mode Register Set command.

Address Inputs:

A0-A10 are sampled during the BankActivate command (row address A0-A11)

and Read/Write command (column address A0-A7 with A8 defining Auto Precharge) to select one

location out of the 256K available in the respective bank.During a Precharge command,A8 is

sampled to determine if all banks are to be precharged (A8 =HIGH).The address inputs also

provide the op-code during a Mode Register Set or Extended Mode Register Set command.

Chip Select:

CS# enables (sampled LOW)and disables (sampled HIGH)the command decoder.All

commands are masked when CS#is sampled HIGH.CS#provides for external bank selection on

systems with multiple banks.It is considered part of the command code.

Row Address Strobe:

The RAS# signal defines the operation commands in conjunction with the

CAS# and WE# signals and is latched at the positive edges of CK.When RAS# and CS# are

asserted “LOW”and CAS# is asserted “HIGH,”either the BankActivate command or the Precharge

command is selected by the WE# signal.When the WE# is asserted “HIGH,”the BankActivate

command is selected and the bank designated by BS is turned on to the active state.When the

WE# is asserted “LOW,”the Precharge command is selected and the bank designated by BS is

switched to the idle state after the precharge operation.

Column Address Strobe:The

CAS# signal defines the operation commands in conjunction with

the RAS# and WE# signals and is latched at the positive edges of CK. When RAS# is held

“HIGH”and CS# is asserted “LOW,”the column access is started by asserting CAS# ”LOW.”Then,

the Read or Write command is selected by asserting WE# “HIGH”or “LOW.”

Write Enable:The

WE# signal defines the operation commands in conjunction with the RAS# and

CAS# signals and is latched at the positive edges of CK.The WE# input is used to select the

BankActivate or Precharge command and Read or Write command.

CKE

Input

BS0,BS1 Input

A0-A11 Input

CS#

Input

RAS#

Input

CAS#

Input

WE#

Input

DQS0-DQS3 Input/Output Bidirectional Data Strobe:

The DQSx signals are mapped to the following data bytes:

DQS0 to DQ0-DQ7, DQS1 to DQ8-DQ15, DQS2 to DQ16-DQ23, DQS3 to DQ24-DQ31.

DM0-DM3 Input Data Input Mask:

DM0-DM3 are byte specific. Input data is masked when DM is sampled HIGH

during a write cycle. DM3 masks DQ31-DQ24, DM2 masks DQ23DQ16, DM1 masks DQ15-DQ8,

and DM0 masks DQ7-DQ0.

DQ0-DQ31 Input/Output Data I/O:The

DQ0-DQ31 input and output data are synchronized with the positive edges of

CK and CK#.The I/Os are byte-maskable during Writes.

Supply

Power Supply:

Power for the input buffers and core logic.

Integrated Circuit Solution Inc.

DDR003-0B 11/10/2004

IC43R32400-4BG Related Products

	IC43R32400-4BG	IC43R32400-5BG	IC43R32400-5B
Description	DRAM,	DRAM,	DRAM,
Is it Rohs certified?	conform to	conform to	incompatible
Maker	Integrated Circuit Solution Inc.	Integrated Circuit Solution Inc.	Integrated Circuit Solution Inc.
Reach Compliance Code	unknown	unknown	unknown
Base Number Matches	1	1	1

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