The Large Improvement Of MCU Series
Recently, the SuperH MCU Series are announced which equipped with 32-bit RISC CPU cores and I/O pin counts from 48 to 272 pins, with operating frequencies available range from 50 to 200 MHz. the SuperH MCU Series can be widely applied in motor control applications, inluding consumer inverter home appliances, industrial servo control and robot control, and automotive EPS (electric power steering).
The advantages of SuperH MCUs
- High-speed operation performance for high-precision motor control,
- High CPU performance,
- A three-phase PWM timer with dead time
- It contains an overcurrent protection circuit on a single chip.
The MCUs match previous generations with large internal SRAM, support for serial flash memory and code fetching from quad serial memories. They also provide a proven Media SDK that dramatically improves time to market when implementing audio codecs (MP3, AAC, and WMA) and includes a production ready media player, FAT file system and Bluetooth profiles.
SuperH MCUs series: the SH726A
The SH726A MCUs is equipped with a new bus controller that enables the connection of quad-SPI flash ROM (serial type), which uses fewer connection pins, as external flash memory supporting direct data access. This substantially reduces the number of pins required for connection, while maintaining access speeds equivalent to conventional parallel NOR flash.
The new bus controller allows programs stored in external quad-SPI flash ROM (with six connection signal lines) to be executed directly, without the need to first transfer them to on-chip SRAM. Access speeds equivalent to conventional parallel NOR flash ROM (with 32 MB, 16-bit bus and 43 connection lines) are achieved through the use of a read cache, enabling the number of pins used to be reduced substantially.
The SH726A is available in a version with a package size of 14 × 14 mm and 0.4 mm pin pitch, helping to reduce the board mounting area and overall cost of the system.
The maximum CPU operating frequency of the SH726A is 216 MHz. It enables the implementation of operations such as digital audio signal processing at high speed. This makes the MCUs suitable for use in products subject to a heavy processing load for sound stage processing, noise cancellation (echo cancelling/noise suppression) for hands-free calls over Bluetooth, in addition to audio playback (decoding of compressed audio).
Software development kits (SDKs) incorporating these drivers and middleware for digital audio applications are also available to further reduce the time and resources required for system development.
The SH726A MCUs will be available in a total of six product versions, depending on the presence or absence of an on-chip CAN interface. There will be four versions for the SH726A. Each of these is additionally available either for industrial or automobile accessory applications, for a total of 12 product numbers.
The operating temperature range of all versions is –40 to +85°C. The SH726A is available in a 120-pin QFP (0.5 mm or 0.4 mm pin pitch).