HY5DU561622CTP Datasheet, PDF (6/30 Pages) Hynix Semiconductor – 256M(16Mx16) gDDR SDRAM

FUNCTIONAL BLOCK DIAGRAM
4Banks x 4Mbit x 16 I/O Double Data Rate Synchronous DRAM
1HY5DU561622CTP
CLK
/CLK
CKE
/CS
/RAS
/CAS
LDM
UDM
Command
Decoder
Bank
Control
Mode
Register
Row
Decoder
Write Data Register
16
2-bit Prefetch Unit
32
4Mx16/Bank0
4Mx16 /Bank1
4Mx16 /Bank2
4Mx16 /Bank3
64
32
DS
DQ[0:15]
A0-12
BA0,BA1
Address
Buffer
Column Decoder
Column Address
Counter
CLK,
/CLK
CLK_DLL
DS
DLL
Block
LDQS,UDQS
Data Strobe
Transmitter
Data Strobe
Receiver
Mode
Register
Rev. 0.5 / Feb. 2006
6