EDS1232AATA-75MI View Datasheet(PDF) - Elpida Memory, Inc

Part Name

Description

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EDS1232AATA-75MI

128M bits SDRAM WTR (Wide Temperature Range)

Elpida Memory, Inc 

EDS1232AATA-MI

Command Operation

Mode register set command (/CS, /RAS, /CAS, /WE)

The Synchronous DRAM 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 2CLK (tRSC) following this

command, the Synchronous DRAM cannot accept any other commands.

CLK

CKE H

/CS

/RAS

E /CAS

/WE

BA0, BA1

(Bank select)

A10

O Add

Mode Register Set Command

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

The Synchronous DRAM has four banks, each with 4,096 rows. This command activates the bank selected by BA0

L and BA1 and a row address selected by A0 through A11. This command corresponds to a conventional DRAM's

/RAS falling.

CLK

CKE H

P/CS

/RAS

/CAS

/WE

rBA0, BA1

(Bank select)

oA10

Row

Add

Row

duct Row Address Strobe and Bank Activate Command

Data Sheet E0340E30 (Ver. 3.0)

11

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