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Technology Stocks : JMAR Technologies(JMAR) -- Ignore unavailable to you. Want to Upgrade?


To: Starlight who wrote (9356)2/27/2001 10:32:28 AM
From: FreedomForAll  Read Replies (1) | Respond to of 9695
 
Here's a post from Raging Bull that's interesting
Freedom
FIFO Price Comparison
Hey all,
I'm a relatively new investor in JMAR (bought in late
Dec), though I've been lurking here for over a year. I
haven't had much to say, but I thought I could offer a
good analysis of the FIFO prices to help to answer some of
the questions that have been appearing here lately. I
thought I'd throw some hard numbers at the question of
FIFO pricing since I work in an engineering firm that
deals directly with vendors for both IDT and Cypress. On
the JMAR Velosync FIFO datasheet, the company lists the
direct product replacements for IDT and Cypress. From
here I threw together a price list of the compatible parts
to show the actual savings of buying from JMAR.
I have listed the FIFO sizes, cost of the component and
the savings if the same part is bought from JMAR. I have
only listed the components that I found prices for.
Prices for Jmar are from All American, prices for IDT are
from Insight Electronics (http://www.insight-electronics.com)
and prices for Cypress are from Arrow(http://www.arrow.com/).
Here's the list:
100 MHz parts (Cypress has none listed)
JMAR IDT
size cost cost savings
256x9 $13.86 $16.75 17%
512x9 $16.92 $18.45 8%
1024x9 $20.29 $22.15 8%
2048x9 $25.03 $26.60 6%
4096x9 $28.41 $32.10 11%
8192x9 $31.80 $36.85 14%
66 MHz parts
JMAR IDT Cypress
size cost cost savings cost savings
256x9 $10.96 $14.30 23% $14.09 22%
1024x9 $14.21 N/A N/A $20.60 31%
2048x9 $17.59 $20.65 15% $22.40 21%
4096x9 $20.98 $25.70 18% $26.92 22%
For slower speeds (50 MHz, 40 MHz, and 28.8 MHz), JMAR
suggests using their 66 MHz parts at slower speeds. IDT
and Cypress both make parts that are specifically designed
to run at these slower speeds, and these parts are cheaper
than their 66 MHz parts. The price tradeoff is no longer
a worthwhile consideration when deciding between JMAR and
the other two since JMAR's 66 MHz price is typically a
savings of 50 cents or less, and in some cases there isn't
a savings at all.
The question of 133 MHz devices also came up. I am
unaware as to whether or not Cypress has compatible
parts. IDT does have 9-bit wide FIFOs that run at 133
MHz, however Insight had none in stock, so I can not get
an accurate value for the price. Nonetheless, JMAR's 133
MHz FIFOs are definitely preferable since they are 32-pin
parts whereas IDT's are 80-pin parts. The size
discrepancy is likely tied to IDT's FIFOs needing more
power and therefore needing a bigger package to dissipate
the heat. I assume the bigger package would also
translate to a higher cost.
One thing to keep in mind is that for all FIFO speeds, IDT
has sizes that are bigger than anything offered by JMAR.
IDT has 9 bit wide FIFOs (that's the x9 in the size) in
sizes of 16K, 32K, 64K, 128K, 256K, 512K, 1M, 2M, and 4M.
This is not necessarilty a bad thing for JMAR. For the
sizes and speeds listed in my tables above, JMAR has a
cost and power advantage. Not all applications demand
FIFOs of the size offered by IDT.
I hope this answers some of the questions that keep popping up here.
I am long in both IDT and JMAR, so I hope my discussion
wasn't too biased towards either one or the other.
Platinum Nat