Renesas Unveils Its First Microcontroller Built with MONOS Embedded Flash Technology for Controlling Electric Motors in Automobiles.The Device's MONOS Flash Memory Allows Fast Single-Cycle Random Access Operations and Its Fast 12-Bit Analog-to-Digital Converter Performs Precise Measurements DETROIT & SAN JOSE, Calif. -- Renesas Technology America, Inc. today announced the SH7147F 32-bit RISC RISC in full Reduced Instruction Set Computing Computer architecture that uses a limited number of instructions. RISC became popular in microprocessors in the 1980s. microcontroller (MCU (1) (MicroController Unit) A computer on a single chip. See microcontroller. (2) (Multipoint Control Unit) A device that is used to moderate a videoconference of three or more end points (users at computers or groups of users ) specialized for controlling the electric motors increasingly being used in automotive chassis, safety and hybrid electric systems. The 64MHz, 32-bit SuperH([R])-family device is the first MCU for automotive motor control systems to use Renesas' advanced MONOS (Metal Oxide Nitride Oxide Silicon) embedded flash technology that delivers speed, size, and reliability advantages. The SH7147's MONOS-based 256Kbyte on-chip flash memory is implemented by a 0.15 micron process and has a full-time single-cycle random access capability. It requires almost 60-percent less chip area than the same amount of flash built with floating-gate NOR flash technology. Also, the MONOS embedded flash is more reliable because its cell design minimizes losses. "Our new MONOS embedded memory technology gives automotive electronics developers a competitive advantage because high speeds and reliability are two of their primary design factors for in-vehicle systems," said Shinichi Asano, marketing manager, automotive business unit at Renesas Technology America, Inc. "The SH7147 MCU leverages the years of experience we have accumulated in developing and manufacturing MONOS-like nonvolatile memory devices. Our customers can be confident that our MONOS process is a mature solution with important benefits, and that it's being applied to economical and dependable MCUs we can manufacture in volume." Peripheral functions allow precise control of 3-phase motors The set of peripherals built into the SH7147 MCU for automotive applications include eight channels of 16-bit PWM (Pulse Width Modulation) A modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. Like its fixed-width pulse density modulation (PDM) cousin, the output switching transistor is on more of the time for a timers and a 16-channel analog-to-digital (A/D A/D See advance-decline line (A/D). ) converter with sample-and-hold (S/H S/H Shipping and Handling S/H Second Hand S/H Service History S/H Sample & Hold S/H Stocking and Hardening ) circuits. These and other on-chip functions, combined with the MCU's high computing performance, allow cost-effective precision inverter designs for electrical power-steering and various DC-to-DC voltage conversion applications in hybrid electric and gas powered cars and trucks. The 64MHz SH7147F is a second-generation product that provides functional and performance improvements over the 50MHz SH7047F, while using the same small 100-pin package. Besides having a 28-percent faster CPU speed, the SH7147F has a more sophisticated data converter. The enhanced A/D offers higher resolution (12 bits, up from 10), additional channels capable of simultaneous sampling and conversion (six, up from two), and a quicker conversion time (about 30 percent faster). Also, it achieves approximately a two-fold improvement in absolute precision, for more accurate inverter control. The A/D converter interacts with the on-chip 16-bit PWM timers to implement precise inverter control. Those timers comprise the MMT MMT Million Metric Tons MMT Médecins Maîtres-Toile MMT Methadone Maintenance Treatment MMT Multiple Mirror Telescope MMT Mission Management Team (International Space Station) MMT Military Training Technology (Motor Management Timer) and MTU (1) (Maximum Transmission Unit, Maximum Transfer Unit) The largest frame size that can be transmitted over the network. For example, an Ethernet MTU is 1,500 bytes. Messages longer than the MTU must be divided into smaller frames. (Multifunction Timer pulse Unit). The latter consists of the MTU2 and MTU2S, which have higher operating speeds: 32 and 64MHz, respectively. The timers are easier to use, too, thanks to new features such as an A/D conversion start-request delayed function and an interrupt-request thinning-out function. Interfaces allow communications with other vehicle systems In modern automobiles, the trend is for more of the in-vehicle systems to be networked together. As a result, the new MCU incorporates comprehensive communication functions for easy connections to other electronic units, subsystems and ICs. A CAN (Controller Area Network) interface is compatible with the CAN in-vehicle LAN (Local Area Network) A communications network that serves users within a confined geographical area. The "clients" are the user's workstations typically running Windows, although Mac and Linux clients are also used. specification. A 4-wire SSU (Synchronous Serial communication Unit) channel allows the selection of master mode or slave mode and can perform synchronous serial communication even with a device that uses a different clock polarity and different clock phase. Three on-chip SCI (Scalable Coherent Interface) An IEEE standard for a high-speed bus that uses wire or fiber-optic cable. It can transfer data up to 1GBytes/sec. (hardware) SCI - 1. Scalable Coherent Interface. 2. UART. (Serial Communication Interface) channels can handle both asynchronous Refers to events that are not synchronized, or coordinated, in time. The following are considered asynchronous operations. The interval between transmitting A and B is not the same as between B and C. The ability to initiate a transmission at either end. and synchronous serial communication. Additionally, the MCU has an 8-bit data-bus-width external expansion function and a DTC DTC See: Depository Transfer Check DTC See: Depository Trust Company DTC See Depository Trust Company (DTC). (Data Transfer Controller) that allows data transfers to internal and external memory without CPU CPU in full central processing unit Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit. intervention. The SH7147F operates over a wide ambient temperature range (-40C to +125C), so it can be used in difficult environments Co the engine compartment of a vehicle, for example. It is packaged the same compact 100-pin LQFP See QFP. (14 mm x 14 mm, 0.5 mm pin pitch) as the SH7047F device, allowing upgrades with existing circuit boards. Also, the SH7147F maintains software compatibility that the SH7047F, so the newer device can run application code written for its predecessor, saving development time. Available system development tools include an integrated development environment See IDE. integrated development environment - interactive development environment with C/C++ compiler package, simulator/debugger, project management tools, and a flash memory programming tool, as well as an emulator (the E200F). Price and Availability [TABLE OMITTED] Reader contact Readers can find additional product and contact information on the Renesas Technology Web site at www.renesas.com. About Renesas Technology Corp. Renesas Technology Corp. is one of the world's leading semiconductor system solutions providers for mobile, automotive and PC/AV (Audio Visual) markets and the world's No.1 supplier of microcontrollers. It is also a leading provider of LCD Driver ICs, Smart Card microcontrollers, RF-ICs, High Power Amplifiers, Mixed Signal ICs, System-on-Chip (SoC), System-in-Package (SiP) and more. Established in 2003 as a joint venture between Hitachi, Ltd. (TOKYO:6501) (NYSE NYSE See: New York Stock Exchange :HIT) and Mitsubishi Electric Corporation (TOKYO:6503), Renesas Technology achieved consolidated revenue of 906 billion JPY JPY In currencies, this is the abbreviation for the Japanese Yen. Notes: The currency market, also known as the Foreign Exchange market, is the largest financial market in the world, with a daily average volume of over US $1 trillion. in FY2005 (end of March 2006). Renesas Technology is based in Tokyo, Japan and has a global network of manufacturing, design and sales operations in around 20 countries with about 26,200 employees worldwide. For further information, please visit http://www.renesas.com. Note to Editors: A specification summary is included in this release, and a photo and block diagram of the SH7147 microcontroller are available. [TABLE OMITTED] -- SuperH is a registered trademark of Renesas Technology Corp. in the United States. Other product names, company names, or brands mentioned are the property of their respective owners. Specifications: Renesas Technology SH7147 32-bit SuperH Microcontroller with MONOS Flash Memory Technology [TABLE OMITTED] |
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