HY5DW283222BF Datasheet, PDF (6/30 Pages) Hynix Semiconductor – 128M(4Mx32) GDDR SDRAM

FUNCTIONAL BLOCK DIAGRAM
4Banks x 1Mbit x 32 I/O Double Data Rate Synchronous DRAM
1HY5DW283222BF(P)
CLK
/CLK
CKE
/CS
/RAS
/CAS
/WE
DM(0~3)
Command
Decoder
Bank
Control
Mode
Register
Row
Decoder
Write Data Register
32
2-bit Prefetch Unit
64
1Mx32/Bank0
1Mx32 /Bank1
1Mx32 /Bank2
1Mx32 /Bank3
64
32
DS
DQ[0:31]
A0-11
BA0,BA1
Address
Buffer
Column Decoder
Column Address
Counter
CLK_DLL
DS
CLK,
/CLK
DLL
Block
Mode
Register
DQS(0~3)
Data Strobe
Transmitter
Data Strobe
Receiver
Rev. 1.1 / May. 2005
6