HB52RF1289E2-75B Datasheet, PDF (1/16 Pages) Elpida Memory – 1 GB Registered SDRAM DIMM 128-Mword × 72-bit, 133 MHz Memory Bus, 2-Bank Module (36 pcs of 64 M × 4 Components) PC133 SDRAM

HB52RF1289E2-75B
1 GB Registered SDRAM DIMM
128-Mword × 72-bit, 133 MHz Memory Bus, 2-Bank Module
(36 pcs of 64 M × 4 Components)
PC133 SDRAM
E0018H20 (Ver. 2.0)
Aug. 20, 2001 (K)
Description
The HB52RF1289E2 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 HB52RF1289E2 is
a 64M × 72 × 2-bank Synchronous Dynamic RAM Module, mounted 36 pieces of 256-Mbit SDRAM
(HM5225405BTB) sealed in TCP package, 1 piece of PLL clock driver, 3 pieces register driver and 1 piece of
serial EEPROM (2-kbit) for Presence Detect (PD). An outline of the HB52RF1289E2 is 168-pin socket type
package (dual lead out). Therefore, the HB52RF1289E2 makes high density mounting possible without
surface mount technology. The HB52RF1289E2 provides common data inputs and outputs. Decoupling
capacitors are mounted beside 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
• 168-pin socket type package (dual lead out)
 Outline: 133.37 mm (length) × 38.10 mm (Height) × 4.80 mm (Thickness)
 Lead pitch: 1.27 mm
• 3.3 V power supply
• Clock frequency: 133 MHz (max)
• LVTTL interface
• Data bus width: × 72ECC
• Single pulsed RAS
• 4 Banks can operates simultaneously and independently
• Burst read/write operation and burst read/single write operation capability
• Programmable burst length: 1/2/4/8
• 2 variations of burst sequence
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.