HY5DU323222QP Datasheet, PDF (6/29 Pages) Hynix Semiconductor – 32M(1Mx32) DDR SDRAM

FUNCTIONAL BLOCK DIAGRAM
4Banks x 256Kbit x 32 I/O Double Data Rate Synchronous DRAM
11HY5DU323222QP
CLK
/CLK
CKE
/CS
/RAS
/CAS
/WE
DM
(0~3)
Command
Decoder
Bank
Control
Write Data Register
32
2-bit Prefetch Unit
64
256 Kx32/Bank0
256Kx32 /Bank1
64
32
256 Kx32 /Bank2
Mode
Register
Row
Decoder
256Kx32 /Bank3
DS
DQ[0:31]
A0 ~ A9
BA0, BA1
Address
Buffer
Column Decoder
Column Address
Counter
CLK_DLL
DS
CLK,
/CLK
DLL
Block
Mode
Register
DQS
Data Strobe
Transmitter
Data Strobe
Receiver
Rev. 0.3 / Jun. 2005
6