EDD1216AATA-5 datasheet(19/48 Pages) ELPIDA

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EDD1216AATA-5 Datasheet(PDF) 19 Page - Elpida Memory

Part #	EDD1216AATA-5

Description	128M bits DDR SDRAM (8M words x 16 bits, DDR400)

Download	48 Pages

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Manufacturer	ELPIDA [Elpida Memory]

Direct Link	http://www.elpida.com/en

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19 / 48 page

EDD1216AATA-5

Data Sheet E0443E40 (Ver. 4.0)

Auto-refresh command [REF]

This command executes auto-refresh. The banks and the ROW addresses to be refreshed are internally determined

by the internal refresh controller. The average refresh cycle is 15.6

µs. The output buffer becomes High-Z after

auto-refresh start. Precharge has been completed automatically after the auto-refresh. The ACT or MRS command

can be issued tRFC after the last auto-refresh command.

Self-refresh entry [SELF]

This command starts self-refresh. The self-refresh operation continues as long as CKE is held Low. During the self-

refresh operation, all ROW addresses are repeated refreshing by the internal refresh controller. A self-refresh is

terminated by a self-refresh exit command.

Power down mode entry [PDEN]

tPDEN (= 1 cycle) after the cycle when [PDEN] is issued. The DDR SDRAM enters into power-down mode. In

power down mode, power consumption is suppressed by deactivating the input initial circuit. Power down mode

continues while CKE is held Low. No internal refresh operation occurs during the power down mode. [PDEN] do not

disable DLL.

Self-refresh exit [SELFX]

This command is executed to exit from self-refresh mode. To issue non-read commands, tSNR has to be satisfied.

((tSNR =)15 cycles for tCK = 5.0 ns after [SELFX]) To issue read command, tSRD has to be satisfied to adjust

DOUT timing by DLL. (200 cycles after [SELFX]) After the exit, input auto-refresh command within 15.6

µs.

Power down exit [PDEX]

The DDR SDRAM can exit from power down mode tPDEX (1 cycle min.) after the cycle when [PDEX] is issued.

Manufacturer	Part #	Datasheet	Description
Elpida Memory	EDD1216AATA	569Kb / 49P	128M bits DDR SDRAM (8M words x 16 bits)
	EDD1216AASE	582Kb / 49P	128M bits DDR SDRAM (8M words x 16 bits)
	EDS1216AABH	712Kb / 49P	128M bits SDRAM (8M words x 16 bits)
	EDS1216AGTA	685Kb / 49P	128M bits SDRAM (8M words 횞 16 bits)
	EDD2508AKTA-5	548Kb / 48P	256M bits DDR SDRAM (32M words x 8 bits, DDR400)
	EDD1232AAFA	601Kb / 50P	128M bits DDR SDRAM (4M words x 32 bits)
	EDD1232AABH	621Kb / 50P	128M bits DDR SDRAM (4M words x 32 bits)
	EDD2508AKTA-5-E	551Kb / 48P	256M bits DDR SDRAM (32M words x 8 bits, DDR400)
	EDD2516AKTA-5-E	558Kb / 48P	256M bits DDR SDRAM (16M words x16 bits, DDR400)
	EDS1232AASE	581Kb / 53P	128M bits SDRAM (4M words x 32 bits)

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