HANBit
HDD32M72D9RPW
DDR SDRAM Module 256Mbyte (32Mx72bit), based on 32Mx8, 4Banks
8K Ref., 184Pin-DIMM with PLL & Register
Part No. HDD32M72D9RPW
GENERAL DESCRIPTION
The HDD32M72D9RPW is a 32M x 72 bit Double Data Rate(DDR) Synchronous Dynamic RAM high-density memory
module. The module consists of nine 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 HDD32M72D9RPW 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 sy stem 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
HDD32M72D9RPW
–
10A
HDD32M72D9RPW
–
13A
HDD32M72D9RPW
–
13B
:
:
:
100MHz (CL=2)
133MHz (CL=2)
133MHz (CL=2.5)
•
2.5V
±
0.2V VDD and VDDQ power supply
•
Double-data-rate architecture; two data transfers per clock cycle
•
Bidirectional data strobe(DQS)
•
Differential clock inputs(CK and /CK)
•
DLL aligns DQ and DQS transition with CK transition
•
Programmable Read latency 2, 2.5 (clock)
•
Programmable Burst length (2, 4, 8)
•
Programmable Burst type (sequential & interleave)
•
Edge aligned data output, center aligned data input
•
Auto & Self refresh, 7.8us refresh interval (8K/64ms refresh)
•
The used device is 8M x 8bit x 4Banks DDR SDRAM
URL : www.hbe.co.kr
REV 1.0 (JUNE.2003)
1
HANBit Electronics Co.,Ltd.
HANBIT [ HANBIT ELECTRONICS CO.,LTD ]
