EBS25EC8APFA

DATA SHEET 256MB Unbuffered SDRAM DIMM EBS25EC8APFA (32M words × 72 bits, 1 bank) Description The EBS25EC8APFA is 32M words × 72 bits, 1 bank Synchronous Dynamic RAM Unbuffered Module, mounted 9 pieces of 256M bits SDRAM sealed in TSOP 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. Features Fully compatible with 8 bytes DIMM: JEDEC standard outline 168-pin socket type dual in line memory module (DIMM)  PCB height: 34.93mm (1.38inch )  Lead pitch: 1.27mm 3.3V power supply Clock frequency: 133MHz (max.) LVTTL interface Data bus width: × 72 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 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. E0209E20 (Ver. 2.0) Date Published June 2002 (K) Japan URL: http://www.elpida.com Ellpida Memory, Inc. 2001-2002 EBS25EC8APFA Ordering Information Part number EBS25EC8APFA-7A EBS25EC8APFA-75 * Clock frequency MHz (max.) 133 133 /CAS latency Package 2, 3 3 168-pin DIMM Contact pad Gold Mounted devices EDS2508APTA Note: 100MHz o...