K4H560438E-GC Datasheet, PDF(6/24 Page) Samsung semiconductor – 256Mb E-die DDR SDRAM Specification 60Ball FBGA (x4/x8)

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K4H560438E-GC Datasheet, PDF (6/24 Pages) Samsung semiconductor – 256Mb E-die DDR SDRAM Specification 60Ball FBGA (x4/x8)

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DDR SDRAM 256Mb E-die (x4, x8)

Block Diagram (64Mbit x 4 / 32Mbit x 8 I/O x 4 Banks)

DDR SDRAM

CK, CK

ADD

Bank Select

CK, CK

x4/8

Data Input Register

Serial to parallel

x8/16

8Mx8/ 4Mx16

x8/16

x4/8

LWE

LDM (x4x8)

x4/8

DQi

Column Decoder

Latency & Burst Length

LCKE

LRAS LCBR LWE

Programming Register

LCAS

LWCBR

LDM (x4x8)

CK, CK

Timing Register

DM Input Register

Data Strobe

CK, CK CKE

RAS CAS

LDM (x4x8)

Rev. 1.3 April, 2005

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