EBD52UD6ADSA

Features:

• 200-pin socket type small outline dual in line memorymodule (SO-DIMM) 
        -PCB height:  31.75mm 
        -Lead pitch:  0.6mm
• 2.5V power supply
• Data rate: 333Mbps/266Mbps (max.)
• 2.5 V (SSTL_2 compatible) I/O
• Double Data Rate architecture; two data transfers pe clock cycle 
• Bi-directional, data strobe (DQS) is transmitted /received with data, to be used in capturing data at the receiver 
• Data inputs, outputs and DM are synchronized with DQS 
• 4 internal banks for concurrent operation  (Component)
• DQS is edge aligned with data for READs; center aligned with data for WRITEs
• Differential clock inputs (CK and /CK)
• DLL aligns DQ and DQS transitions with CK transitions
• Commands entered on each positive CK edge; data referenced to both edges of DQS
• Data mask (DM) for write data
• Auto precharge option for each burst access
• Programmable burst length:  2, 4, 8
• Programmable /CAS latency (CL):  2, 2.5
• Refresh cycles:  (8192 refresh cycles /64ms) 
        -7.8µs maximum average periodic refresh interval
• 2 variations of refresh 
        -Auto refresh 
        -Self refresh


Specifications

Parameter	Symbol	Value	Unit	Note
Voltage on any pin relative to VSS	VT	1.0 to +3.6	V
Supply voltage relative to VSS	VDD	1.0 to +3.6	V
Short circuit output current	IOS	50	mA
Power dissipation	PD	8	W
Operating ambient temperature	TA	0 to +70		1
Storage temperature	Tstg	-55 to +125

Description

The EBD52UD6ADSA is 64M words × 64 bits, 2 ranks Double  Data  Rate  (DDR)  SDRAM Small  Outline  Dual In-line  Memory  Module,  mounting  8  pieces  of  512M bits DDR SDRAM sealed in TSOP package.  Read and write  operations  are  performed  at  the  cross  points  of the CK and the /CK.  This high-speed data transfer EBD52UD6ADSA 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.  This module EBD52UD6ADSA provides high density mounting without utilizing surface mount technology.  Decoupling capacitors are mounted beside each TSOP on the module board.