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參數(shù)資料
| 型號： | HDD64M72D18W-13B |
| 廠商： | Hanbit Electronics Co.,Ltd. |
| 英文描述： | DDR SDRAM Module 512Mbyte (64Mx72bit), based on 32Mx8, 4Banks, 8K Ref., with 184Pin-DIMM |
| 中文描述： | DDR SDRAM內(nèi)存模塊512Mbyte（64Mx72bit），在32Mx8，4Banks，8K的參考依據(jù)。與184Pin - DIMM內(nèi)存 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 190K |
| 代理商： | HDD64M72D18W-13B |
HANBit
HDD64M72D18W
URL : www.hbe.co.kr 1 HANBit Electronics Co.,Ltd
.
REV 1.0 (August.2002)
GENERAL DESCRIPTION
The HDD64M72D18W is a 64M x 72 bit Double Data Rate(DDR) Synchronous Dynamic RAM high-density memory
module. The module consists of eighteen CMOS 32M 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 HDD64M72D18W is a DIMM( Dual in line Memory
Module) .Synchronous design allows precise cycle control 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 memory 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
HDD64M72D18W
–
10A : 100MHz (CL=2)
HDD64M72D18W
–
13A : 133MHz (CL=2)
HDD64M72D18W
–
13B : 133MHz (CL=2.5)
512MB(64Mx72) Unbuffered DDR DIMM based on 32Mx8 DDR SDRSM
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 8M x 8bit x 4Banks DDR SDRAM
DDR SDRAM Module 512Mbyte (64Mx72bit), based on 32Mx8, 4Banks, 8K
Ref., with 184Pin-DIMM Part No. HDD64M72D18W
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