K4H510438D Datasheet, PDF (7/24 Pages) Samsung semiconductor – 512Mb D-die DDR SDRAM Specification

K4H510438D
K4H510838D
K4H511638D
6.0 Block Diagram (32M x 4 / 16Mb x 8 / 8Mb x 16 I/O x4 Banks)
DDR SDRAM
CK, CK
ADD
Bank Select
x4/x8/16
LWE
CK, CK
Data Input Register
Serial to parallel
LDM (x4/x8)
LUDM (x16)
x8/x16/32
16Mx8/ 8Mx16/ 4Mx32
16Mx8/ 8Mx16/ 4Mx32
16Mx8/ 8Mx16/ 4Mx32
16Mx8/ 8Mx16/ 4Mx32
x8/x16/32 x4/x8/16
x4/x8/16
DQi
Column Decoder
Latency & Burst Length
LCKE
LRAS LCBR LWE
LCAS
Programming Register
LWCBR
LDM (x4/x8)
LUDM (x16)
CK, CK
Timing Register
DM Input Register
Data Strobe
CK, CK CKE
CS
RAS CAS
WE
LDM (x4/x8)
LUDM (x16)
Rev. 1.2 January 2006