Renesas Electronics Announces USB 2.0 Hub Controller Chip with Battery
Supports USB BC 1.2, Allowing Data Communication and Rapid Charging Via a
Single USB Connector
SANTA CLARA, Calif. -- May 22, 2013
Renesas Electronics Corporation (TSE: 6723), a premier supplier of advanced
semiconductor solutions, today announced the development of the μPD720115 USB
2.0 hub controller chip, which supports simultaneous USB communication and
charging of portable devices such as smartphones and tablet PCs via a single
The most important feature of the μPD720115 is its implementation of USB ports
with battery charging functionality which supports the USB Battery Charging
Specification, Revision 1.2 (USB BC 1.2). The μPD720115 will make it easier to
develop products that support simultaneous data communication complying with
the USB 2.0 standard and charging portable devices via a single USB connector,
such as PCs, digital TVs, and charging adapters. It can help shorten system
architecture development cycles and reduce development costs.
In recent years, the USB communication market has become divided into two
segments as a result of faster data transfer speeds. The first segment centers
around storage devices, such as hard disk drives, which require high-speed
data transfer. It utilizes the USB 3.0 standard, which supports data transfer
speeds up to 5 gigabits per second (5 Gbps). The second segment includes
applications such as digital TVs, printers, audio components, and industrial
equipment. This segment employs the earlier USB 2.0 standard, which supports
data transfer speeds up to 480 megabits per second (480 Mbps). USB 2.0 remains
a widely used interface for connecting devices of all sorts.
The European Commission (the executive of the EU) has adopted Micro USB as the
standard charger interface for mobile phones, smartphones, and tablet PCs sold
in Europe. As a result, applications in which the communication USB ports of
PCs and docking stations are used for charging such portable devices are
increasing. The market for products complying with the USB 2.0 standard in
these application fields is growing rapidly, and it is expected to continue to
expand moving forward.
In response to this demand, Renesas decided to develop and introduce to the
market the μPD720115, utilizing technology accumulated over many years of
developing products with USB support. Renesas has long devoted considerable
attention to the USB interface, offering a broad lineup of microcontroller
(MCU) products equipped with USB functions. The μPD720115 is a USB hub
controller suitable for a wide variety of systems requiring USB functionality,
and is also ideal for extending the number of ports of a USB MCU.
Key Features of the New μPD720115:
(1) Supporting the USB BC 1.2 standard, for easy development of USB charging
The μPD720115 implements a total of four USB ports with battery charging
functionality. It supports the USB BC 1.2 standard [Note 1], which supports
charging currents of up to 1.5 amperes (A). Since the μPD720115 supports both
USB communication and rapid battery charging in this way, developing a USB
charging system architecture is easy.
(2) Built-in dual voltage regulators and clock output function, making it
possible to build more compact systems at a lower cost
Comparable earlier products required external voltage regulators, but the
μPD720115 integrates a 5 volt (V) and a 3.3 volt (V) regulator on-chip. This
allows the user to employ the 5 V from the USB cable as a power supply without
modification. There is no need to include an external regulator in the system
The μPD720115 also has a clock output function (24 MHz) to enable cascade
connection [Note 2] of the USB ports to other μPD720115 chips or connection to
other chips used by USB peripheral devices. This eliminates the need to add an
external crystal oscillator for the lower-level chip, as was previously the
case. The μPD720115 makes it possible to create a USB charging system
architecture that is both lower in cost and more compact.
(3) Operating temperature range extending down to –40°, enabling use in a wide
range of application fields
Comparable earlier products had an operating temperature range with a lower
limit of 0° or above, but the μPD720115 extends this down to –40°. This
provides support for the operating temperature range requirements of typical
Moving forward, Renesas plans to actively develop USB products to meet
evolving market requirements and to market them in a timely manner.
Pricing and Availability
Samples of the μPD720115 USB 2.0 hub controller chip will start in June 2013.
Mass production of the μPD720115 is scheduled to begin in September 2013 and
is expected to reach a scale of 1,000,000 units per month in 2014.
(Availability is subject to change without notice.)
[Note 1] Battery charging via the USB port utilizes the VBUS pin the USB
connector. To control the current used to charge the connected portable
device, USB BC 1.2 defines a mechanism for detecting whether or not the port
of the connected device supports charging. A charging current of up to 1.5 A
can be used.
[Note 2] To extend the number of ports, a port is connected to the port of a
Names of products or services mentioned in this press release are trademarks
or registered trademarks of their respective owners.
About Renesas Electronics Corporation
Renesas Electronics Corporation (TSE: 6723), the world’s number one supplier
of microcontrollers, is a premier supplier of advanced semiconductor solutions
including microcontrollers, SoC solutions, and a broad-range of analog and
power devices. Business operations began as Renesas Electronics in April 2010
through the integration of NEC Electronics Corporation (TSE:6723) and Renesas
Technology Corp., with operations spanning research, development, design, and
manufacturing for a wide range of applications. Headquartered in Japan,
Renesas Electronics has subsidiaries in 20 countries worldwide. More
information can be found at www.renesas.com.
Jessica Kerr, 415-975-2213
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