HB52R649E1U-A6B Datasheet, PDF (1/20 Pages) Elpida Memory – 512 MB Registered SDRAM DIMM 64-Mword × 72-bit, 100 MHz Memory Bus, 1-Bank Module (18 pcs of 64 M × 4 Components) PC100 SDRAM

HB52R649E1U-A6B/B6B
512 MB Registered SDRAM DIMM
64-Mword × 72-bit, 100 MHz Memory Bus, 1-Bank Module
(18 pcs of 64 M × 4 Components)
PC100 SDRAM
E0022H10 (1st edition)
(Previous ADE-203-1192A (Z))
Preliminary
Jan. 31, 2001
Description
The HB52R649E1U belongs to 8-byte DIMM (Dual In-line Memory Module) family, and has been developed
as an optimized main memory solution for 8-byte processor applications. The HB52R649E1U is a 64M × 72
× 1-bank Synchronous Dynamic RAM Registered Module, mounted 18 pieces of 256-Mbit SDRAM
(HM5225405BTB) sealed in TCP package, 1 piece of PLL clock driver, 2 pieces of register driver and 1 piece
of serial EEPROM (2-kbit) for Presence Detect (PD). An outline of the HB52R649E1U is 168-pin socket
type package (dual lead out). Therefore, the HB52R649E1U makes high density mounting possible without
surface mount technology. The HB52R649E1U provides common data inputs and outputs. Decoupling
capacitors are mounted beside each TCP on the module board.
Note: Do not push the cover or drop the modules in order to protect from mechanical defects, which would
be electrical defects.
Features
• Fully compatible with : JEDEC standard outline 8-byte DIMM
: Intel PCB Reference design (Rev.1.2)
• 168-pin socket type package (dual lead out)
 Outline: 133.35 mm (Length) × 30.48 mm (Height) × 4.80 mm (Thickness)
 Lead pitch: 1.27 mm
• 3.3 V power supply
• Clock frequency: 100 MHz (max)
• LVTTL interface
• Data bus width: × 72 ECC
• Single pulsed RAS
• 4 Banks can operates simultaneously and independently
Preliminary: The Specifications of this device are subject to change without notice. Please contact to your
nearest Elpida Memory, Inc. regarding specifications.
This product became EOL in September, 2002.
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.