UPD4564323 データシートの表示（PDF） - NEC => Renesas Technology

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UPD4564323

64M-bit Synchronous DRAM 4-bank, LVTTL

NEC => Renesas Technology 

3. Simplified State Diagram

µPD4564323 for Rev. E

Mode

Register

Set

MRS

IDLE

SELF

SELF exit

REF

Self

Refresh

CBR(auto)

Refresh

CKE

CKE

Power

Down

Write

BST

Write

ROW

ACTIVE

CKE

CKE

Read

BST

Active

Power

Down

Read

WRITE

SUSPEND

CKE

CKE

WRITE

Read

Write

READ

CKE

CKE

READ

SUSPEND

WRITEA

SUSPEND

CKE

CKE

WRITEA

READA

CKE

CKE

READA

SUSPEND

POWER

ON

Precharge

Precharge

Automatic sequence

Manual input

12

Data Sheet M14376EJ2V0DS00

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