Because they contain an extensive array of hardware functions and more internal memory, the new MCUs make it possible to design with a single-chip mid-range and low-end consumer, automotive and industrial products that provide economical graphics capabilities or TV display functions. Depending on a model, the MCUs have 18 to 20 peripheral functions that are sufficient for handling the many timing, communication, decompression, data conversion, and other tasks required in such applications. (Typically, the only additional IC needed is a read-only ROM chip for storing programs.)
The new MCUs are members of the SuperH family. They incorporate an SH2A-FPU CPU core with floating point unit (FPU) hardware that attains high code efficiency and runs application code quickly. Processing performance is excellent: 346 MIPS (Dhrystone 1.1 benchmark) and 288 MFLOPS at 144MHz. This high level of throughput enables the devices to perform embedded control tasks and multimedia processing, while also communicating with external devices. Further, the combination of excellent signal-processing performance and high ROM code efficiency they offer facilitates compression and decompression of audio data in formats such as MP3, WMA, or AAC (Advanced Audio Coding) more rapidly, while reducing program sizes.
Both the SH7262 and SH7264 series contain eight models—versions differentiated by temperature range (-20 to +85°C or -40 to +85°C) and whether or not they have CAN or IEBus interfaces. The SH7262 series MCUs are packaged in a 176-pin QFP and have four channels of A/D converter, while the SH7264 series devices come in a 208-pin QFP and have eight A/D converter channels. The QFP packages are lead-free types.
Industry top-class SRAM capacity
The 1Mbyte of SRAM built into the SH7262 and SH7264 MCUs can be configured as a frame buffer for temporary storage of video data for graphical displays. With these MCUs, it’s possible to drive a WQVGA-size TFT LCD panel (480 × 240 pixels) without external SDRAM for video memory. Larger displays up to VGA can be driven by the SH7262 and SH7264 if external SDRAM is used for the frame buffer, and the on-chip SRAM can be used to store either programs or other types of data.
New graphical display functions
Among the MCUs’ numerous on-chip functions are a new video display controller and digital video input pins that are useful for graphical and video display applications such as rear-view or side-view cameras. These peripherals support video recording, image-size reduction, alpha-blending effects (superimposition of transparent or semitransparent images), and superimposition of video inputs. Digital RGB output pins allow images or video to be displayed on WQVGA screens in the 16-bit RGB565 format.
Other on-chip functions in the MCUs’ extensive sets of peripherals include a motor-control pulse width modulation (PWM) timer that can control the display of up to four gauges, an SD memory-card interface, a hardware circuit for decompressing graphical data, a USB 2.0 Hi-Speed specification host/function interface, an audio signal processor, and a CD-ROM decoder. Additionally, there is a 16-bit external data bus that supports direct connection to external memory such as flash ROM, SDRAM, or SRAM without external parts.
Typical applications
In products such as digital car audio systems and home audio equipment, the MCUs in the SH7262 and SH7264 series can implement the ability to dock portable audio players and display video from players that have video playback functions. In automobiles, the devices can be used to drive a color LCD instrument panel that shows not only the speedometer and tachometer, but also readouts of fuel level, coolant temperature, oil pressure and other information, plus warning indications, camera images, and navigation data. Additionally, the new series will be ideal for accessories for standalone or built-in media players such as alarm clocks and external speakers as well as products that require MMI employing audio and graphics.
For system development, the MCUs have an on-chip debugging function that allows system engineers to perform real-time debugging at the devices’ full 144MHz operating frequency. The E10A-USB emulator, which uses USB bus power and thus requires no external power supply, is available as a development environment. Renesas Technology supplies middleware supporting digital audio compression standards such as MP3, WMA, and AAC. The MCUs can implement designs with multi-codec compatibility. There is also software available that supports the ISO 9660 file system used by CD-ROMs and the FAT32 file system used by hard disk drives. Renesas is developing a platform solution with a reference board and middleware, including codecs for audio, GUI libraries and development tools and real-time operating system support from Renesas’ partner companies.
Future plans for Renesas SuperH MCUs include chips for high-end markets, including multi-core products offering improved performance, expanded on-chip memory, and enhanced peripheral functions such as advanced display capabilities. Versions with lower prices and reduced specifications are also being considered for designs that are highly cost-sensitive.
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Price and Availability |
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Product Name |
Max. Operating Frequency (Operating Temperature Range) Package |
CAN/IEBus Interfaces | Price/ Sample Availability | |||
| SH7262 series |
144MHz (-40 to 85°C) 176-pin QFP |
Optional |
Prices for quantities over 10K pieces start from $12.
Q3 2008 |
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|
144MHz (-20 to 85°C) 176-pin QFP |
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| SH7264 series |
144MHz (-40 to 85°C) 208-pin QFP |
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|
144MHz (-20 to 85°C) 208-pin QFP |
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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. (TSE:6501) (NYSE:HIT) and Mitsubishi Electric Corporation (TSE:6503), Renesas Technology achieved consolidated revenue of 951 billion JPY in FY2007 (end of March 2008). Renesas Technology is based in Tokyo, Japan and has a global network of manufacturing, design and sales operations in 17 countries with 26,800 employees worldwide. For further information, please visit http://www.renesas.com
Notes:
CAN (Controller Area Network) is an automotive network specification promoted by Robert Bosch GmbH of Germany.
IEBus™ (Inter Equipment Bus) is a trademark of NEC Electronics Corporation.
SuperH is a trademark of Renesas Technology Corp. Other product names, company names, or brands mentioned are the property of their respective owners.
Specifications: Renesas Technology SH7262 and SH7264 32-bit SuperH Microcontrollers for Digital Audio Products and Graphical Display Applications
| Item | Specifications | |
| Product names | SH7262 and SH7264 | |
| Power supply voltage | 3.3V/1.2V | |
| Max. operating frequency | 144MHz | |
| Max. processing performance | 346 MIPS (Dhrystone 1.1 benchmark), 288 MFLOPS [operating at 144MHz] | |
| Operating temperature range | -40 to +85°C or -20 to +85°C | |
| CPU core | SH2A-FPU | |
| CPU instructions | 112 (including FPU-related instructions) | |
| On-chip RAM | • 1Mbyte (for TV display, 32Kbytes also used for data storage) • 64Kbytes (high-speed on-chip memory) | |
| Cache memory | 16Kbytes (divided between instruction [8KB] and data [8KB], 4-way set associative) | |
| External memory | Bus clock max. 48MHz | |
| Support for direct connection of SRAM or SDRAM using bus state controller | ||
| Address space 64Mbytes × 7 | ||
| Data bus width: External 8/16 bits | ||
| On-chip peripheral functions | Multifunction 16-bit timer (MTU2) × 5 channels | |
| 16-bit timer (CMT) × 2 channels | ||
| A/D converter (10-bit resolution) [SH7262: 4 channels; SH7264: 8 channels] | ||
| USB 2.0 (Hi-Speed) specification, host or function selectable | ||
| Serial communication interface (SCIF) with 16-stage FIFO × 8 channels (support for asynchronous and clock-synchronous serial communication) | ||
| Serial peripheral interface × 2 channels | ||
| I2C bus interface × 3 channels | ||
| Serial sound interface × 4 channels | ||
| Clock-synchronous serial I/O with FIFO | ||
| Renesas SPDIF interface | ||
| Decompression unit | ||
| Motor-control PWM timer × 2 channels | ||
| NAND interface for external flash memory | ||
| Video-display controller | ||
| SD host interface (SD card license required) | ||
| Real-time clock | ||
| CD-ROM decoder | ||
| Sampling-rate converter | ||
| IEBus interface (optional) | ||
| CAN interface (optional) |
| On-chip peripheral functions (cont’d) |
On-chip debugging functions:
- Advanced User Debugger II (AUD-II) - User Debugging Interface (H-UDI) |
|
| Direct memory access controller × 16 channels | ||
| Interrupt controller | ||
| Watchdog timer | ||
| Clock pulse generator (CPG): Built-in PLL, max. 12x multiplication | ||
| Boot modes | Boot mode 0: Boot from memory connected to CS0 space | |
| Boot mode 1: Boot from serial flash memory (high-speed communication) | ||
| Boot mode 2: Boot from NAND flash memory | ||
| Boot mode 3: Boot from serial flash memory (low-speed communication) | ||
| Power-down modes | Sleep mode | |
| Software standby mode | ||
| Deep standby mode | ||
| Module standby mode | ||
| Package |
SH7262: 176-pin QFP (24mm × 24mm, 0.5mm pin pitch), lead-free SH7264: 208-pin QFP (28mm × 28mm, 0.5mm pin pitch), lead-free |
1 Top row: operating-temperature range is –40 to +85°C; bottom row: operating-temperature range is –20 to +85°C
Contact:
Renesas Technology America, Inc.
Akiko Ishiyama, 408-382-7407
Email Contact