K4H561638F Samsung semiconductor, K4H561638F Datasheet - Page 6

• Manufacturer Part Number: K4H561638F
• Description: 256Mb F-die DDR SDRAM Specification
• Manufacturer: Samsung semiconductor

Block Diagram ( 8Mbit x 8 / 4Mbit x 16 I/O x 4 Banks)
DDR SDRAM 256Mb F-die (x8, x16)
CK, CK
ADD
LCKE
CK, CK
LRAS LCBR
Bank Select
CKE
CS
LWE
CK, CK
RAS
LCAS
Timing Register
CAS
4Mx16 / 2Mx32
4Mx16 / 2Mx32
4Mx16 / 2Mx32
4Mx16 / 2Mx32
Latency & Burst Length
Programming Register
Data Input Register
Column Decoder
Serial to parallel
WE
x16/x32
x8/x16
LWCBR
DM Input Register
x6/x32
CK, CK
L(U)DM
x8/x16
Rev. 1.3 October, 2004
DQi
x8/x16
LWE
L(U)DM
DDR SDRAM
Data Strobe