HYS64/72D32000GU / HYS64/72D64020GU
2.5 V 184-pin Unbuffered DDR-I SDRAM Modules
256MB & 512MB Modules
Preliminary Datasheet Rev. 0.9
• 184-pin Unbuffered 8-Byte Dual-In-Line
DDR-I SDRAM non-parity and ECC-Modules
for PC and Server main memory applications
• Auto Refresh (CBR) and Self Refresh
• All inputs and outputs SSTL_2 compatible
• Serial Presence Detect with E2PROM
• One bank 32M × 64, 32M x 72 and two bank
64M x 64, 64M × 72 organization
• Jedec standard MO-206a form factor:
133.35 mm × 31.75 mm × 4.00 mm
• JEDEC standard Double Data Rate
Synchronous DRAMs (DDR-I SDRAM)
Single + 2.5 V (± 0.2 V) power supply
• Jedec standard reference layout
• Gold plated contacts
• Built with 256Mbit DDR-I SDRAMs in 66-
Lead TSOPII package
• Programmable CAS Latency, Burst Length,
and Wrap Sequence (Sequential &
Interleave)
• Performance:
-7
-7.5
-8
Unit
Component Speed Grade
Module Speed Grade
PC266A PC266B PC200
PC2100 PC2100 PC1600
fCK
fCK
Clock Frequency (max.) @ CL = 2.5
Clock Frequency (max.) @ CL = 2
143
133
133
100
125
100
MHz
MHz
The HYS64/72D000GU are industry standard 184-pin 8-byte Dual in-line Memory Modules
(DIMMs) organized as 32M × 64 and 64M × 64 for non-parity and 32M x 72 and 64M x 72 for ECC
main memory applications. The memory array is designed with Double Data Rate Synchronous
DRAMs (2.5V DDR-I). A variety of decoupling capacitors are mounted on the PC board. The DIMMs
feature serial presence detect based on a serial E2PROM device using the 2-pin I2C protocol. The
first 128 bytes are programmed with configuration data and the second 128 bytes are available to
the customer.
Preliminary Datasheet
1
5.00
