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EE
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PULSE
INTERVIEW
EE
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Issue 66
October 2, 2012
PULSE
Ranjit Deshpande
Vice President of Engineering
Renesas Electronics America
Electrical Engineering Community
Electrical Engineering Community
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Ranjit Deshpande
RENESAS ELECTRONICS AMERICA
Interview with Ranjit Deshpande - Vice President of Engineering
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Featured Products
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The Highs and Lows of Resistance
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BY
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WITH XESS CORP.
Why finding a good set of naming rules for variables in your HDL code should be considered before
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Experts
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EE
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INTERVIEW
EE
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INTERVIEW
Ranjit
Deshpande
Renesas
Renesas Electronics America
Renesas Electronics America
is a leading semiconductor company that
relies on all facets of their technology to come up with unique solutions.
We spoke with the vice president of engineering,
Ranjit Desphande
, about
their lagship microcontroller products, maintaining Renesas’ reputation of
integrity and quality and how his experience in other ields helps bring a
fresh perspective to Renesas’ ever-evolving product line.
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Tell us a little bit about yourself.
How did you get into electrical
engineering?
It goes back to school, when I
first encountered the BBC Micro
computers that my school had.
I started playing with these
computers in an environment
where we didn’t really have much
in terms of structured instruction.
I became fascinated with the fact
that I could move a square block
of pixels across a monitor from left
to right and right to left. That really
sparked my interest. Later on in
school, I took an optional course
in electronics, so I got started in
11th and 12th grade building little
circuits that had 555 timer ICs. I
went on to do my Bachelor’s and
Master’s in Electrical Engineering
and Computer Science.
What can you tell me about
the culture at Renesas?
Worldwide, Renesas is known
for integrity, honesty and quality.
That’s something that I’ve known
by looking from the outside in—I
was always impressed by how
Renesas was always good at doing
what they said they would do. Not
just in terms of delivering products
that met specifications, but simple
stuff like getting your purchase
orders paid on time. From within
engineers don’t feel disconnected
from the upper management. Often
times, they view me as just another
engineer who is able to listen to
their arguments or offer feedback.
I am also trying to encourage our
engineers to think about solutions
when they are trying to address
problems. We will often have
something that we are working on
that is specific to a single customer.
What I try to tell our engineers is not
to view that as a one time project,
the NEC Electronics and Renesas
Technology semiconductor
business. That particular part has
been extremely successful for us
and we continue to bring in different
models and different features on
that RL78 microcontroller line. We
are going to see more and more
options for that part in different
areas like automotive, where it
has a lot of potential for increasing
the efficiency and increasing the
amount of features in automotive
Signal Chain
Coming from the outside, a lot of today’s customers expect that
the semiconductor companies will provide anywhere from
40 to 70 percent of their product solution as a building block.
My role is to really foster the development of these solutions
based on our microcontrollers and microprocessors, analog
and power devices and add software to the mix as well.
to do dimming for LED lights.
Typically, if you go to Home Depot
or a home improvement store and
buy a dimmer that traditionally
works with the incandescent bulbs,
they don’t tend to work that well
with LED lights or CFL bulbs.
We’ve come up with some very
innovative solutions that use not just
analog and power parts, but also
a microcontroller that can adapt
dynamically to the characteristics
of the bulb that is being dimmed.
We’ve also created solutions around
motor control, which is another
significant area of interest, given
our customer profile in appliances
and automobiles. All of these are
at the heart of several sub-systems
for motor controls. What we’ve done
is taken some of our leading-edge
flagship 32-bit microcontrollers
and designed a solution with IGBT
or power MOSFETs that are also
manufactured by Renesas and put
together some sophisticated Vector
Control algorithms. The result is
presented as a complete solution
to customers that can then build
their particular product or their
intellectual property on top of that.
It’s another example of going from
not just the microcontrollers, but
also from the analog and power
domain.
will provide anywhere from 40
to 70 percent of their product
solution as a building block.
My role is to really foster the
development of these solutions
based on our microcontrollers and
microprocessors, analog and power
devices and add software to the mix
as well. The focus for me is to go
after these solutions.
Could you tell us more about
your career prior to working at
Renesas?
I started off in a company called
SCO (Santa Cruz Operation),
which is a Unix software provider
that famously sued IBM for patent
and copyright infringement. I
started working on Unix kernel
development. Operating systems
have always been my area of
interest. After that, I moved on to
join Sun, but the most significant
part of my career was starting my
own company back in 2000, which
was in the networking software
domain. We did software for home
networking devices like Access
Point, DSL gateways, Ethernet
gateways and with customers like
Motorola and Linksys. In 2007, my
company was acquired by 2Wire
which is in the DSL/Gateway space.
What kinds of solutions have
you targeted?
the company, what I found is that
it’s a culture that permeates every
organization. I tried to instill some
of that global culture in the team
here in the U.S. In addition to that,
my style of management coming
from a start-up is an open style,
meaning every engineer within the
organization is absolutely welcome
and encouraged to walk in my office
and talk about any project they are
working on, discuss ideas or bring
complaints to my attention. The thing
I enjoy the most in this atmosphere
is the ability to bounce ideas off of
each other. Even though I have the
position of VP of engineering, I am
still very hands-on—it’s always been
the way I am. There are a lot of areas
where I like to work on the designs
with my engineers, which I feel
creates a much better relationship
in the management chain so that
rather to try and take a solution for a
particular customer and generalize
it for applications to future products.
design. On the analog and power
side, we had several new devices:
our Super Junction MOSFETs, our
Silicon Carbide Diodes and our
IGBTs. We’ve made a very large
push in the analog and power
domain because we recognize that
in today’s world, we can’t be only
focused on the microcontroller.
The biggest area for us is the
signal chain. What I mean by that is
everything starting from the sensor.
If you were to draw a mental picture,
you have sensors that measure real
world analog input. The signals
from those sensors get conditioned
and get fed to a microcontroller or
microprocessor, which then analyzes
the data and decides to take some
action based on that input. As a
result of that action, you can activate
some sort of actuator somewhere
on the other side. This signal chain
is the driving principle behind any
of our solutions. We’ve worked on
several solutions in the last year.
Some of the best examples are
focused on LED lighting, given that
we have some innovative solutions
that make use of microcontrollers
What are some of the new
products you are developing?
We have had two very successful
product launches; the RX, which is
our flagship 32-bit microcontroller,
and our RL, which is our flagship
16-bit, low-power microcontroller.
Just recently we have announced
our RX200 line, which is 32-bit
processing power with a very low-
power footprint. It really scales the
RX family from the high-end 600-
series down to the low-end. It is very
competitive with other suppliers here
in the U.S. The other exciting thing
we have introduced is the RL, which
is the first product that exemplifies
the merger synergy we had between
How much of an inluence
does the engineering
department have on the future
products at Renesas?
When I first came to Renesas, one
of the first products that I worked
on had customers that were largely
centered in the U.S. I had a unique
experience, in my opinion, trying
to feed the customer requirements
back into the team in Japan and
really establish a great relationship
What is your role at Renesas?
Coming from the outside, a lot
of today’s customers expect that
the
semiconductor
companies
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and more intelligent. Those are
areas where Renesas really plays
well into and we are well positioned
to get into those domains. From an
industry perspective, I think the
challenge for Renesas is to go from
being a high-quality microcontroller
and microprocessor component
supplier to be more solution-
oriented. To a large extent, the
semiconductor industry outside of
Intel, especially in Silicon Valley
and the U.S. has recognized that
they need to be solution-focused. A
lot of that has to do with the way the
American engineering workforce
is structuring their business. A lot
of times, people in the engineering
workforces are challenged by the
number of resources they have,
so they are relying more on the
semiconductor company and other
suppliers to provide more and
more of their product solutions.
The other interesting challenge
for us is connectivity. Renesas has
not been known as a pioneer in
connectivity solutions and we see
the need to build up expertise in the
communication domain. I see a lot of
new products coming out in the next
few years in the connectivity space.
It’s an exciting thing that makes me
want to come into work everyday.
■
understanding of the systems. They
may not be experts in every part of
the system, but every single engineer
that is on our design team has to
understand the system because that
is the common goal that everyone
should be marching to. Connectivity
is obviously a big factor in today’s
market, so knowledge of everything
in the connectivity space is also very
important. The last thing, broadly
speaking, is the ability to generalize
the problem.
From an industry
perspective, I think
the challenge for
Renesas is to go from
being a high-quality
microcontroller
and microprocessor
component supplier
to be more solution-
oriented.
Could you tell us about the
future of Renesas?
Renesas as a company is large and
it touches so many different areas of
technology that I see a tremendous
amount of opportunities. In this
decade, we are realizing that more
everyday items have some kind of
processing element or intelligence
written into it. It’s not just your smart
meters or smart cars, it’s about your
smart home or smart industry where
factory automation is getting more
Renesas’ RX62G Microcontroller
analog and power parts. For every
product proposal we’ve made for
the U.S. region, there’s always
two components: an engineering
and marketing component. I have
been actively involved in certain
proposals that have been made
in the past three to four months.
I’ve also got my application
engineering team heavily invested.
It’s absolutely important for
engineering to be involved because
at the end of the day, there are
chip designers in Japan who do a
great job of manufacturing high-
quality products, but the application
engineering team is the one that gets
to use those products. They see a lot
of the issues and requirements that
our end customers are going to see.
Without that involvement, we would
not have the quality and the feature-
rich products that we have today.
Engineering plays a crucial role in
specifying new products.
with the design team. Because of
the fact that I was coming into this
job with a totally hands-on technical
background, I was able to take
requirements and translate them
down into the engineering level.
That, I think, has really grown.
From an engineering standpoint,
we’ve done several new product
proposals for microcontrollers and
For more information about Renesas, visit their website:
What do you look for
when you are hiring a new
engineer?
www.renesas.com
The first thing I look for is obviously
the breadth of hands-on experience
that the engineer has had in the
industry. Our business tends to touch
a lot of different areas, technology
wise, so the range of experience is
important. The next thing I look for
is whether the engineer has had
a system-level view of his or her
design. You could have analog and
power design engineers or software
engineers or board design people,
but the thing I look for the most
is whether they have a complete
Renesas’ Super Junction-MOSFET
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