Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Renesas Technology Europe | Subject: SH/Tiny Flash microcontrollers
Edited by the Electronicstalk Editorial
Team on 09 November 2007
Cost-effective microcontrollers suit
white goods
The SH/Tiny devices have an MTU2 timer unit with six channels of 16bit timers and up to 16 input capture/output compare capacity.
Renesas Technology Europe has added 16 and 32Kbyte Flash versions to its range of low pin count, SH/Tiny Flash microcontrollers Adding the lower memory versions puts increasing pressure on small DSPs with small memory integration, Renesas' solution being a more flexible, cost-effective solution with many advantages over DSPs
This article was originally published on Electronicstalk on 15 Apr 2004 at 8.00am (UK)
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The SH2 32bit RISC CPU core has 16 general-purpose 32bit registers and a 32x32=64 hardware multiplier.
The SH/Tiny devices have an MTU2 timer unit with six channels of 16bit timers and up to 16 input capture/output compare capacity, as well as a three-phase PWM capability for electrical motors using channels three and four.
Further excellent motor control features are enabled by a quadrature encoder feedback capability in channel two and a special channel five that can measure actual dead times, enabling the shortest possible dead times for highest efficiency as well as safe nondestructive operation of the power stage.
The PWM outputs can be quickly turned off in hardware in case of an emergency shutdown.
The PWM outputs can drive 15mA for direct connection to opto couplers.
The devices have two ADC with four channels each, 10bit resolution and 2us conversion time.
The ADC can be triggered by the MTU2 with an additional defined delay time to support algorithms such as single-shunt motor drive.
Single shunt motor drive is a technology that has replaced expensive shunt resistors in motors using CPU calculation power.
For a very small increase in cost designers can replace several Euros worth of shunts and achieve significantly lower system cost in applications such as pumps, fans and vacuum cleaners.
The peripheral set is completed by three serial ports, a watchdog timer, two channels of compare-match timers and up to 37 GPIO.
The devices operate at 5V/50MHz and come in three different RoHS-compliant QFP packages with 64 pins (0.8 and 0.5mm pitch, on request) and 48 pins (0.65mm pitch).
The SH/Tiny line-up has been developed for white goods applications such as induction cooking, washing machines or vacuum cleaner motor control and inverters such as in pumps, fans and airconditioning (HVAC).
The line-up features a special wide temperature range version with up to 105C operation to support induction cooking hobs.
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