Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Hitachi Europe | Subject: SH7047F
Edited by the Electronicstalk Editorial
Team on 22 March 2002
Single-supply MCU controls two motors on
its own
Hitachi's latest 32bit single-chip RISC MCU features 256Kbyte of on-chip single-power-supply Flash memory and two motor control timers, enabling single-chip control of two motors.
Hitachi's latest 32bit single-chip RISC microcontroller, the SH7047F, features 256Kbyte of on-chip single-power-supply Flash memory and two motor control timers, enabling single-chip control of two motors that previously required two microcontrollers This function, together with a 65MIPS processing performance at 50MHz operating frequency, enables high-precision motor control and efficient system control to be achieved with a single chip
This article was originally published on Electronicstalk on 16 Feb 2001 at 8.00am (UK)
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In addition to the Flash SH7047F, the SH7049 ROM version is available, offering 128Kbyte of on-chip mask ROM.
Both devices offer a single 5V power supply in place of the two power supply systems of previous products (5V for the I/O ports and 3V for the internal logic circuitry).
This is achieved through the use of an on-chip step-down circuit and simplifies system construction.
Both power consumption and noise have also been reduced as the internal logic circuits operate on a low stepped-down voltage.
In addition to an on-chip multifunction timer pulse unit (MTU) and a motor management timer (MMT), the SH7047F and SH7049 are equipped with a comprehensive selection of peripheral functions for application areas that demand high-precision control and integrated processing of various kinds of control.
For example, both devices offer two A/D convertor units, each comprising eight channels, with both units capable of operating simultaneously.
This makes it possible to speed up the feedback control essential to high-precision motor control.
Moreover, the A/D conversion speed per unit is approximately double that of the older SH7040 series.
As a communication function, the SH7047F and SH7049 incorporate a HCAN2 (Hitachi Controller Area Network), compatible with CAN (version 2.0B), used in in-vehicle LANs and device networks.
The HCAN2 enables the setting of up to 32 message buffers in one channel for fast and reliable communication.
These devices also include a module standby function as a power-down mode that enables the clock supply to be stopped for unnecessary modules, making it possible to implement power-down operation according to the application.
For a development environment, the SH7047F incorporates H-UDI and AUD on-chip debug functions.
This enables simple emulation by using third party on-chip debug development tools such as DASH2 from Codescape (www.codescape.com) and TRACE32-ICD from Lauterbach (www.lauterbach.com).
Emulation support will also be available from Lauterbach.
The SH7047F and SH7049 are available in a 100-pin QFP.
Both devices further strengthen Hitachi's lineup of microcontrollers for motor control.
Previously released products include the 16bit H8/3032 and H8/3039 series with an on-chip integrated timer pulse unit (ITU) for the white goods market, and the 32bit SH7040 series with an on-chip MTU for industrial applications.
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