EBS25UC8APFA
EBS25UC8APFA is 256MB Unbuffered SDRAM DIMM manufactured by Elpida Memory.
DATA SHEET
256MB Unbuffered SDRAM DIMM
EBS25UC8APFA (32M words × 64 bits, 1 bank)
Description
The EBS25UC8APFA is 32M words × 64 bits, 1 bank Synchronous Dynamic RAM Registered Module, mounted 8 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 patible 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: × 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
- 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. E0210E20 (Ver. 2.0) Date Published June 2002 (K) Japan URL: http://.elpida. Elpida Memory, Inc. 2001-2002
Ordering Information
Part number EBS25UC8APFA-7A EBS25UC8APFA-75
- Clock frequency MHz (max.) 133 133 /CAS latency Package 2, 3 3 168-pin DIMM Contact pad Gold Mounted devices EDS2508APTA
Note: 100MHz operation at /CAS latency = 2.
Pin Configurations
1 pin 10 pin 11 pin
40 pin 41 pin
84...