In addition, the RX24T Starter Kit6 will also be available to provide a complete development environment for initial implementation, including a reference board populated with the RX24T and an MCU evaluation environment.
(3) Fewer external components for smaller printed circuit boards
As applications become more compact, print circuit boards (PCBs) sizes have shrunk, resulting in strong demand for MCUs that integrate the functions of external components. The RX24T integrates on-chip external circuits required by inverter control systems, such as op-amps supporting simultaneous four-channel amplification of three-shunt and one-shunt currents, comparators capable of overcurrent detection of amplified current, sample and hold circuits that can handle up to five channels simultaneously, such as three-shunt currents, and DataFlash for storing log and setting files. This dramatically reduces the mounting area needed on the PCBs.
The RX24T and RX23T also incorporate an automatic PWM signals shutdown to ensure the protection of the three-phase bridges; the module is called Port Output Enable (POE) and set the signals in high impedance state to secure the inverter.
Pricing and Availability
Samples of the RX24T are available now. Pricing varies depending on memory capacity, package and number of pins. For example, samples of the R5F524T8ADFN MCU, with an 80-pin package and 128 KB of on-chip flash memory, are priced at US$2.40 per 10K pcs/lot. Mass production has begun and is expected to reach a volume of 500,000 units per month by July 2017. (Pricing and availability are subject to change without notice.)
For more information on Renesas, follow Renesas Electronics America at @RenesasAmerica on Twitter and http://www.facebook.com/RenesasAmerica.
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.
(Remarks) SuperFlash memory technology used in Renesas Electronics' RX24T MCUs is licensed from Silicon Storage Technology Inc. SuperFlash is a registered trademark of Silicon Storage Technology in the U.S., Japan, and other countries. All registered trademarks or trademarks are the property of their respective owners.
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1 Also known as brushless DC (BLDC) motor.
2 Renesas Solution Starter Kit—24 V Motor Control Evaluation Systems for RX23T (Motor RSSK for RX23T): A development toolkit including a 24 V inverter board, a CPU board populated with the RX23T, and a PMAC motor. It allows developers to get started right away with motor control using Renesas MCUs. A CPU card populated with the RX24T is available separately.
3 Motor efficiency classes are stipulated in IEC 60034-30, a standard issued by the International Electrotechnical Commission (IEC), an international standards organization. In order from the highest efficiency, they are IE3 (premium efficiency), IE2 (high efficiency), and IE1 (standard efficiency).
4 A floating point unit (FPU) is a dedicated functional unit that performs floating-point calculations. Thanks to the FPU, the overall software code implementation is strongly reduced in terms of code size, the source code is becoming easy to maintain.
5 Motor control software, the In-Circuit Scope (ICS) RAM variable waveform display tool, and other software tools are available for download on the Renesas website.
6 Renesas Starter Kits (RSKs) are low-cost development toolkits. They provide a user-friendly development environment for evaluation of Renesas MCUs. The supplied emulator and integrated development environment can be used for coding and debugging.
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