EDD2516AKTA-5-E datasheet(12/48 Pages) ELPIDA

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EDD2516AKTA-5-E Datasheet(PDF) 12 Page - Elpida Memory

Part #	EDD2516AKTA-5-E

Description	256M bits DDR SDRAM (16M words x16 bits, DDR400)

Download	48 Pages

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Manufacturer	ELPIDA [Elpida Memory]

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

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12 / 48 page

EDD2516AKTA-5-E

Data Sheet E0638E20 (Ver. 2.0)

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 to DQ15 (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	EDD2516AKTA-5	503Kb / 48P	256M bits DDR SDRAM
	EDD2516AKTA-5C	503Kb / 48P	256M bits DDR SDRAM
	EDD2516AKTA-5CLI	501Kb / 48P	256M bits DDR SDRAM WTR (Wide Temperature Range)

Manufacturer	Part #	Datasheet	Description
Elpida Memory	EDD2508AKTA-5	548Kb / 48P	256M bits DDR SDRAM (32M words x 8 bits, DDR400)
	EDD2516AKTA-E	564Kb / 49P	256M bits DDR SDRAM (16M words x 16 bits)
	EDD2508AKTA-5-E	551Kb / 48P	256M bits DDR SDRAM (32M words x 8 bits, DDR400)
	EDS2516ADTA-75	702Kb / 50P	256M bits SDRAM (16M words x 16 bits)
	EDS2516CDTA	703Kb / 50P	256M bits SDRAM (16M words x 16 bits)
	EDD2516KCTA-SI	579Kb / 52P	256M bits DDR SDRAM 256M bits DDR SDRAM
	EDD1216AATA-5	556Kb / 48P	128M bits DDR SDRAM (8M words x 16 bits, DDR400)
	EDD2504AKTA-E	555Kb / 49P	256M bits DDR SDRAM (64M words x 4 bits)
	EDD2504AKTA	441Kb / 49P	256M bits DDR SDRAM (64M words x 4 bits)
	EDD2516AKTA	509Kb / 49P	256M bits DDR SDRAM

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