EBS51RC4ACFC

Features:

• Fully compatible with 8 bytes DIMM: JEDEC standard outline
• 168-pin socket type dual in line memory module (DIMM)
       -PCB height: 30.48mm (1.20inch)
       -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
• Registered inputs with one clock delay
• Byte control by DQMB
• Refresh cycles: 8192 refresh cycles/64ms
• 2 variations of refresh
       -Auto refresh
       -Self refresh
• 1 piece of PLL clock driver, 3 pieces of register driver and 1 piece of serial EEPROM (2k bits) for Presence Detect (SPD) on PCB.

Specifications

Parameter	Symbol	Value	Unit	Note
Voltage on any pin relative to VSS	VT	0.5 to VDD + 0.5 ( 4.6 (Max))	V
Supply voltage relative to VSS	VDD	0.5 to +4.6	V
Short circuit output current	IOS	50	mA
Power dissipation	PD	18	W
Operating case temperature	TA	0 to +70		1
Storage temperature	Tstg	55 to +125

Description

The EBS51RC4ACFC is 64M words × 72 bits, 1 bank Synchronous Dynamic RAM Registered Module, mounted 18 pieces of 256M bits SDRAM sealed in TSOP package. This module EBS51RC4ACFC 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.