EDD1216AATA-5 datasheet(12/48 Pages) ELPIDA

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EDD1216AATA-5 Datasheet(PDF) 12 Page - Elpida Memory

Part #	EDD1216AATA-5

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

Download	48 Pages

Scroll/Zoom	100%

Manufacturer	ELPIDA [Elpida Memory]

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

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12 / 48 page

EDD1216AATA-5

Data Sheet E0443E40 (Ver. 4.0)

CKE (input pin)

This pin determines whether or not the next CK is valid. If CKE is High, the next CK rising edge is valid. If CKE is

Low. CKE controls power down and self-refresh. The power down and the self-refresh commands are entered

when the CKE is driven Low and exited when it resumes to High. CKE must be maintained high throughout read or

write access.

The CKE level must be kept for 1 CK cycle at least, that is, if CKE changes at the cross point of the CK rising edge

and the /CK falling edge with proper setup time tIS, by the next CK rising edge CKE level must be kept with proper

hold time tIH.

UDM, LDM (input pin)

DMs are the reference signals of the data input mask function. DMs are sampled at the cross point of DQS and

VREF. DMs provide the byte mask function. In

× 16 products, LDM controls the lower byte (DQ0 to DQ7) and UDM

controls the upper byte (DQ8 to DQ15) of write data. When DM = High, the data input at the same timing are

masked while the internal burst counter will be count up.

DQ0 toDQ15 (input/output pins)

Data is input to and output from these pins.

UDQS, LDQS (input and output pin)

DQS provide the read data strobes (as output) and the write data strobes (as input). In

×16 products, LDQS is the

lower byte (DQ0 to DQ7) data strobe signal, UDQS is the upper byte (DQ8 to DQ15) data strobe signal.

VDD, VSS, VDDQ, VSSQ (Power supply)

VDD and VSS are power supply pins for internal circuits. VDDQ and VSSQ are power supply pins for the output

buffers.

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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