K4H56038D-TC Datasheet, PDF (6/18 Pages) Samsung semiconductor – 256Mb D-die DDR400 SDRAM Specification

DDR SDRAM 256Mb D-die (x8, x16)
Block Diagram (8Mbx8 / 4Mbx16 I/O x 4 Banks)
DDR SDRAM
CK, CK
ADD
Bank Select
CK, CK
8 /16
(L)WE
Data Input Register
Serial to parallel
LDM(x8)
LL(U)DM(x16)
16/ 32
4Mx16/ 2Mx32
4Mx16/ 2Mx32
4Mx16/ 2Mx32
4Mx16/ 2Mx32
16/32
8/16
x8/x16
DQi
Column Decoder
Latency & Burst Length
LCKE
LRAS LCBR LWE
Programming Register
Data Strobe
LCAS
Timing Register
LWCBR
CK, CK
LL(U)DM(x16)
LDM(x8)
DM Input Register
CK, CK CKE
CS
RAS CAS
WE
DM(x8)
L(U)DM(x16)
Rev. 1.1 Feb. 2003