HB54R5128KN データシートの表示（PDF） - Elpida Memory, Inc
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HB54R5128KN Datasheet PDF : 16 Pages
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DATA SHEET
512MB DDR SDRAM SO DIMM
HB54R5128KN-A75B/B75B/10B (64M words × 64 bits, 2 Banks) Description
The HB54R5128KN is Double Data Rate (DDR)
SDRAM Module, mounted 256M bits DDR SDRAM
(HM5425801BTB) sealed in TCP package, and 1 piece
of serial EEPROM (2k bits EEPROM) for Presence
EDetect (PD). The HB54R5128KN is organized as 32M
× 64 × 2 banks mounted 16 pieces of 256M bits DDR
SDRAM. Read and write operations are performed at
the cross points of the CK and the /CK. This high-
Ospeed data transfer is realized by the 2 bits prefetch-
pipelined architecture. Data strobe (DQS) both for
read and write are available for high speed and reliable
data bus design. By setting extended mode register,
the on-chip Delay Locked Loop (DLL) can be set
enable or disable. An outline of the products is 200-pin
L socket type package (dual lead out). Therefore, it
makes high density mounting possible without surface
mount technology. It provides common data inputs
and outputs. Decoupling capacitors are mounted
beside each TCP on the module board.
P Note: Do not push the cover or drop the modules in
order to protect from mechanical defects,
roduct which would be electrical defects.
Features
• 200-pin socket type package (dual lead out)
Outline: 67.6mm (Length) × 31.75mm (Height) ×
3.80mm (Thickness)
Lead pitch: 0.6mm
• 2.5V power supply (VCC)
• SSTL-2 interface for all inputs and outputs
• Clock frequency: 133 MHz (max) (-A75B/B75B)
: 100 MHz (max) (-10B)
• Data inputs, outputs and DM are synchronized with
DQS
• 4 banks can operate simultaneously and
independently (Component)
• Burst read/write operation
• Programmable burst length: 2, 4, 8
Burst read stop capability
• Programmable burst sequence
Sequential
Interleave
• Start addressing capability
Even and Odd
• Programmable /CAS latency (CL): 2, 2.5
• 8192 refresh cycles: 7.8µs (8192row/64ms)
• 2 variations of refresh
Auto refresh
Self refresh
Document No. E0189H40 (Ver. 4.0)
Date Published September 2002 (K) Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2001-2002
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.
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