HY5DU573222AFM Datasheet, PDF (6/30 Pages) Hynix Semiconductor – 256M(8Mx32) GDDR SDRAM

FUNCTIONAL BLOCK DIAGRAM
(4Banks x 1Mbit x 32 I/O) x 2Chips Double Data Rate Synchronous DRAM
HY5DU573222AFM
CLK
/CLK
CKE
CS0
/RAS
/CAS
/WE
DM(0~3)
A0-A11
BA0,BA1
WriteDataRegister ^32bit
2-bit PrefetchUnit
DS
CLK
/CLK
CKE
CS1
/RAS
/CAS
/WE
DM(0~3)
WriteDataRegister ^643b2it
2-bit Prefetch Unit
DS
Bank
Control
1Mx32/Bank0
64
Bank
Control
Mode
Register
1Mx32 /Bank1
1Mx32/Bank0
1Mx32 /Bank2
1Mx32 /Bank1
64
1Mx32 /Bank3
1Mx32 /Bank2
Row
1DMexc3o2de/Brank3
64bit
32
32bit
DQ[0:31]
Mode
Register
Row
Decoder
Column Decoder
A0-A11
BA0,BA1
Column Decoder
Column Address
Counter
CLK_DLL
Column AMdoddreesRsegister
Counter
CLK, /CLK
DS
DLL
CBLlKo_cDkLL
Data StrDoSbe
Transmitter
Data Strobe
LDTQrSa,nUsDmQitSter
Data Strobe
Receiver
DQ[0:31]
DQS0 ~
DQS3
Rev. 0.5 / Aug. 2003
6