K4D263238E Datasheet, PDF (6/17 Pages) Samsung semiconductor – 1M x 32Bit x 4 Banks Graphic Double Data Rate Synchronous DRAM with Bi-directional Data Strobe and DLL

K4D263238E-GC
BLOCK DIAGRAM (1Mbit x 32I/O x 4 Bank)
128M GDDR SDRAM
CK,CK
ADDR
Bank Select
CK, CK
32
Intput Buffer
LWE
Data Input Register
Serial to parallel
64
LDMi
1Mx32
1Mx32
1Mx32
1Mx32
64
32
x32
DQi
Column Decoder
Latency & Burst Length
LCKE
LRAS LCBR LWE
LCAS
Programming Register
LWCBR
Timing Register
DLL
CK,CK
LDMi
Data Strobe
(DQS0~DQS3)
CK,CK CKE CS RAS CAS WE DMi
-6-
Rev 1.7 (Nov. 2003)