HY5DU28422ETP Datasheet, PDF (7/35 Pages) Hynix Semiconductor – 128Mb DDR SDRAM

FUNCTIONAL BLOCK DIAGRAM (16Mx8)
4Banks x 4Mbit x 8 I/O Double Data Rate Synchronous DRAM
HY5DU28422ETP
HY5DU28822ETP
HY5DU281622ETP
CLK
Bank
Control
/CLK
CKE
/CS
Command
/RAS
Decoder
/CAS
/WE
DM
Mode
Row
Register
Decoder
Write Data Register
8
2-bit Prefetch Unit
16
4Mx8/Bank0
4Mx8/Bank1
4Mx8/Bank2
4Mx8/Bank3
16
8
DS
DQ [0:7]
ADD
BA0,BA1
Address
Buffer
Column Decoder
Column Address
Counter
CLK_DLL
DS
CLK
DLL
/CLK Block
DQS
Data Strobe
Transmitter
Data Strobe
Receiver
Mode
Register
Rev. 0.3 /Apr. 2006
7