HANBit
HDD128M72D18RPW
DDR SDRAM Module 1024Mbyte (128Mx72bit), based on 64Mx8, 4Banks,
8K Ref., 184Pin-DIMM with PLL & Register
Part No. HDD128M72D18RPW
GENERAL DESCRIPTION
The HDD128M72D18RPW is a 128M x 72 bit Double Data Rate(DDR) Synchronous Dynamic RAM high-density memory
module. The module consists of eighteen CMOS 64M x 8 bit with 4banks DDR SDRAMs in 66pin TSOP-II 400mil packages
and 2K EEPROM in 8-pin TSSOP package on a 184-pin glass-epoxy. Four 0.1uF decoupling capacitors are mounted on
the printed circuit board in parallel for each DDR SDRAM. The HDD128M72D18RPW is a DIMM( Dual in line Memory
Module) .Synchronous design allows precise cycle c ontrol with the use of system clock. Data I/O transactions are possible
on both edges of DQS. Range of operating frequencies, programmable latencies and burst lengths allows the same device
to be useful for a variety of high bandwidth, high performance mem ory system applications. All module components may be
powered from a single 2.5V DC power supply and all inputs and outputs are SSTL_2 compatible.
FEATURES
•
Part Identification
HDD128M72D18RPW
–
13A
HDD128M72D18RPW
–
13B
HDD128M72D18RPW
–
16B
:
:
:
133MHz (CL=2)
133MHz (CL=2.5)
166MHz (CL=2.5)
•
1024MB(64Mx72) Registered DDR DIMM based on 64Mx8 DDR SDRAM
•
2.5V
±
0.2V VDD and VDDQ power supply
•
Auto & self refresh capability (8K Cycles / 64ms)
•
All input and output are compatible with SSTL_2 interface
•
Data(DQ), Data strobes and write masks latched on the rising and falling edges of the clock
•
All Addresses and control inputs except Data(DQ), Data strobes and Data masks latched on the rising edges of the clock
•
MRS cycle with address key programs
- Latency (Access from column address) : 2, 2.5
- Burst length : 2, 4, 8
- Data scramble : Sequential & Interleave
•
Data(DQ), Data strobes and write masks latched on the rising and falling edges of the clock
•
All Addresses and control inputs except Data(DQ), Data strobes and Data masks latched on the rising edges of the clock
•
The used device is 16M x 8bit x 4Banks DDR SDRAM
URL : www.hbe.co.kr
REV 1.0 (January. 2005)
1
HANBit Electronics Co.,Ltd.
HANBIT [ HANBIT ELECTRONICS CO.,LTD ]
