K4H510438A-TCA0 SAMSUNG [Samsung semiconductor], K4H510438A-TCA0 Datasheet - Page 13

• Manufacturer Part Number: K4H510438A-TCA0
• Description: 128Mb DDR SDRAM
• Manufacturer: SAMSUNG [Samsung semiconductor]

128Mb DDR SDRAM
3. Functional Description
3.1 Simplified State Diagram
POWER
APPLIED
REGISTER
MODE
SET
POWER
WRITEA
ON
POWER
DOWN
WRITEA
WRITEA
WRITE
CKEH
Figure 3. State diagram
WRITE
MRS
PRE
CKEL
WRITEA
PRE
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CHARGE
ACTIVE
ROW
IDLE
ACT
PRE
PRE
READ
READA
READA
CKEH
PRE
REFS
BURST STOP
READ
REFA
CKEL
REV. 1.0 November. 2. 2000
REFSX
READA
READ
REFRESH
POWER
DOWN
WRITEA : Write with autoprecharge
READA : Read with autoprecharge
READA
SELF
REFRESH
AUTO
Automatic Sequence
Command Sequence