EBS25UC8APMA Datasheet, PDF (1/14 Pages) Elpida Memory – 256MB SDRAM Micro DIMM

DATA SHEET
256MB SDRAM Micro DIMM
EBS25UC8APMA (32M words × 64 bits, 1 bank)
Description
The EBS25UC8APMA is 32M words × 64 bits, 1 bank
Synchronous Dynamic RAM Micro Dual In-line Memory
Module (Micro DIMM), mounted 8 pieces of 256M bits
SDRAM sealed in µBGA^ package. This module
provides high density and large quantities of memory in
a small space without utilizing the surface mounting
technology. Decoupling capacitors are mounted on
power supply line for noise reduction.
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 8 bytes Micro DIMM: JEDEC
standard outline
• 144-pin socket type micro dual in line memory
module (Micro DIMM)
 PCB height: 30.00mm (1.18inch )
 Lead pitch: 0.50mm
• 3.3V power supply
• Clock frequency: 100MHz/133MHz (max.)
• LVTTL interface
• Data bus width: × 64 non-ECC
• Single pulsed /RAS
• 4 Banks can operates simultaneously and
independently
• Burst read/write operation and burst read/single write
operation capability
• Programmable burst length (BL): 1, 2, 4, 8, Full page
• 2 variations of burst sequence
 Sequential
 Interleave
• Programmable /CAS latency (CL): 2, 3
• Byte control by DQMB
• Refresh cycles: 8192 refresh cycles/64ms
• 2 variations of refresh
 Auto refresh
 Self refresh
Document No. E0241E30 (Ver. 3.0)
Date Published May 2002 (K) Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2002