HANBit

HDD32M72D9RPW

URL : www.hbe.co.kr

1

HANBit Electronics Co.,Ltd.

REV 1.0 (JUNE.2003)

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

HDD32M72D9RPW – 10A : 100MHz (CL=2)

HDD32M72D9RPW – 13A : 133MHz (CL=2)

HDD32M72D9RPW – 13B : 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

DDR SDRAM Module 256Mbyte (32Mx72bit), based on 32Mx8, 4Banks

8K Ref., 184Pin-DIMM with PLL & Register

Part No. HDD32M72D9RPW