HY5DU561622FLTP-5I Datasheet, PDF (6/28 Pages) Hynix Semiconductor – 256M(16Mx16) DDR SDRAM

FUNCTIONAL BLOCK DIAGRAM
4Banks x 4Mbit x 16 I/O Double Data Rate Synchronous DRAM
1HY5DU561622FTP-5I
HY5DU561622FTP-4I
CLK
/CLK
CKE
/CS
Command
/RAS
Decoder
/CAS
LDM
UDM
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
T ran sm itter
Data Strobe
Receiver
Mode
Register
Rev. 1.1 / Mar. 2008
6