K4H560438E-NC Datasheet, PDF(6/24 Page) Samsung semiconductor – 256Mb E-die DDR SDRAM Specification 54pin sTSOP(II)

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K4H560438E-NC Datasheet, PDF (6/24 Pages) Samsung semiconductor – 256Mb E-die DDR SDRAM Specification 54pin sTSOP(II)

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

Block Diagram (16Mbit x 4 / 8Mbit 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

x4/8

DQi

Column Decoder

Latency & Burst Length

LCKE

LRAS LCBR LWE

Programming Register

LCAS

LWCBR

Timing Register

CK, CK

LDM

Data Strobe

CK, CK CKE

RAS CAS

Rev. 1.3 April, 2005

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