K4H1G0438M Datasheet, PDF (6/23 Pages) Samsung semiconductor – 1Gb M-die DDR SDRAM Specification

DDR SDRAM 1Gb M-die (x4, x8)
Block Diagram (64Mbit x 4 / 32Mbit x 8 I/O x 4 Banks)
DDR SDRAM
CK, CK
ADD
Bank Select
x4/8/16
LWE
CK, CK
Data Input Register
Serial to parallel
LDM
x8/16/32
32Mx8/ 16Mx16/ 8Mx32
32Mx8/ 16Mx16/ 8Mx32
32Mx8/ 16Mx16/ 8Mx32
32Mx8/ 16Mx16/ 8Mx32
x8/16/32 x4/8/16
x4/8/16
DQi
Column Decoder
Latency & Burst Length
LCKE
LRAS LCBR LWE
Programming Register
LCAS
LWCBR
CK, CK
LDM
Timing Register
DM Input Register
CK, CK CKE
CS
RAS CAS
WE
L(U)DM
Data Strobe
Revision 1.0 October, 2004