VersaLogic Corp. Bus Comparison Table

Use this comparison table to aid in the selection of the most appropriate embedded industrial computer for your particular application. Click on the links below to view VersaLogic's embedded CPU product selection. Check out our Products page for non-CPU product links.

	STD	STD 32	PC/104	PC/104-Plus	EBX	ISA	ISA + Desktop PCI (short size)	Compact PCI	VME (6U)	Multibus II
Dimensions (in.)	4.5 x 6.5"	4.5 x 6.5"	3.8 x 3.6"	3.8 x 3.6"	5.75 x 8" (varies)	13.3 x3.9" (max.)	6.9 x 3.9"	6.3 x 3.9"	9.2 x 6.3"	9.2 x 8.6"
Area (square in.)	27	27	14	14	46	52	27	25	57	71
Maximum Expandability	24 slots	24 slots	Stack of 4	Stack of 4	0 to 4 mezzanine cards	8	8 ISA + 3 PCI	8	24	24
Power Usage	Medium	Medium	Low	Low	Medium	Medium	Medium	Medium	High	High
Max. Data Width (bits)	8/16*	32	8/16	32	8/16/32/64	16	32	32	32	32
Bus Interface	STD	STD 32	ISA	ISA & PCI	Various	ISA	ISA & PCI	PCI	VME	Multibus II
Max. Transfer Rate (Mbytes/second)	4	32	5	132	5-132	8	132	132	40	40
Multi- processor Capability	Yes, but non- deterministic	Yes	No	Yes	No	No	Yes	Yes	Yes	Yes
Flexibility (Design Changes)	High	High	Medium	Medium	Low	High	High	High	High	High
Ruggedness	High	High	High	High	High	Medium	Medium	High	High	High
Backplane / Card Cage	Yes	Yes	No (stacking)	No (stacking)	No	Yes	Yes	Yes	Yes	Yes
Typical System Size	Small	Small	Smallest	Smallest	Smallest	Medium	Large	Small	Large	Large
Cost	Medium	Medium	Medium	Medium	Medium	Medium/Low	Medium/Low	High	High	High
Primary Application Area	Industrial: System Fabrication	Industrial: System Fabrication	Embedded: SBC expansion	Embedded: SBC expansion	Embedded: OEM Systems	Desktop: System Expansion	Desktop: System Expansion	Industrial: System Fabrication	Industrial: System Fabrication	Industrial: System Fabrication

Comparisons are based on the assessment made by VersaLogic technical experts and engineering staff. The views and opinions of authors expressed herein do not necessarily state or reflect those of the industry in general and comparisons may vary from system to system.

Embedded Industrial Computer Comparison Table