EDL1216CASA-10-E データシートの表示（PDF） - Elpida Memory, Inc

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EDL1216CASA-10-E

128M bits Mobile RAM

Elpida Memory, Inc 

EDL1216CASA

Command Operation

Extended Mode register set command (/CS, /RAS, /CAS, /WE, BA0 = Low, BA1 = High)

The Mobile RAM has an extended mode register that defines low power functions. In this command, A0 through A11

are the data input pins.

After power on, the extended mode register set command must be executed to fix low power functions.

The extended mode register can be set only when all banks are in idle state.

During tRSC following this command, the Mobile RAM can not accept any other commands.

CLK

CKE H

/CS

/RAS

/CAS

/WE

BA0

BA1

A10

Add

Extended Mode register set command

Mode register set command (/CS, /RAS, /CAS, /WE, BA0, BA1 = Low)

The Mobile RAM has a mode register that defines how the device operates. In this command, A0 through A11 are

the data input pins. After power on, the mode register set command must be executed to initialize the device. The

mode register can be set only when all banks are in idle state. During tRSC following this command, the Mobile

RAM cannot accept any other commands.

CLK

CKE H

/CS

/RAS

/CAS

/WE

BA0

BA1

A10

Add

Mode register set command

Activate command (/CS, /RAS = Low, /CAS, /WE = High)

The Mobile RAM has four banks, each with 4,096 rows. This command activates the bank selected by BA0 and BA1

and a row address selected by A0 through A11. This command corresponds to a conventional DRAM's /RAS falling.

CLK

CKE H

/CS

/RAS

/CAS

/WE

BA0, BA1

A10

Row

Add

Row

Activate command

Data Sheet E0195E30 (Ver. 3.0)

10

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