Description
   The HYS[64/72]D64x20HU-[5/6]-C, HYS[64/72]D32x00HU-[5/6]-C, and HYS64D16x01HU-[5/6]-C are industry standard 184-Pin Unbuffered Dual-In-Line Memory Modules (Reg DIMM) organized as 16M × 64, 32M × 64 and 64M × 64 for non-parity and 32M × 72 and 64M × 72 for ECC main memory applications. The memory array is designed with 256Mbit Double Data Rate Synchronous DRAMs. A variety of decoupling capacitors are mounted on the printed circuit board. The DIMMs feature serial presence detect (SPD) based on a serial E2PROM device using the 2-pin I2C protocol. 

FEATUREs
• 184-Pin Unbuffered Dual-In-Line Memory Modules (ECC and non-parity) for PC and Server main memory applications
• One rank 16M x 64, 32M × 64, 32M × 72 and two ranks 64M × 64, 64M × 72 organization
• JEDEC standard Double Data Rate Synchronous DRAMs (DDR SDRAM) Single +2.5V (±0.2V) power supply
• Built with 256 Mbit DDR SDRAM in P-TSOPII-66-1 package
• Programmable CAS Latency, Burst Length, and Wrap Sequence (Sequential & Interleave)
• Auto Refresh (CBR) and Self Refresh
• All inputs and outputs SSTL_2 compatible
• Serial Presence Detect with E2PROM
• JEDEC standard MO-206 form factor: 133.35 mm × 31.75 mm × 4.00 mm max.
• Jedec standard reference layout
• Gold plated contacts
• DDR400 Speed Grade supported
• Lead-free