16-bit flash micro offers low pin-count and large peripheral set
21 April 2004DSP, Micros & Memory
Surveillance
Products & Solutions
The M16C/28 16-bit microcontroller, a low pin-count device that offers a large peripheral set is available from Renesas. The 64-pin (optional 80-pin) chip includes up to 96 Kbyte Flash, 4 Kbyte virtual EEPROM and 8 Kbyte RAM and offers many peripheral features that it says have previously been unavailable in such a small (10 x10 mm), low cost microcontroller.
The device is suited to many consumer and industrial applications such as white goods, motor control, HVAC, security systems and health goods.
According to the manufacturer, the M16C/28 offers many features that are unusual for a device in its class. These include: up to five serial interfaces that offer support for synchronous, asynchronous, multimaster I2C and subsets of serial peripheral interface and smartcard mode ISO7816; a fast (3,3 ms) 10-bit ADC with up to 24 channels, a large number of conversion modes and two sample and hold circuits for simultaneous sampling of two signals (as required in electrical motor control systems); many powerful timers with special 3-phase PWM electrical motor modes, including an eight channel 16-bit timer, an additional 16-bit free running timer with eight input capture/output compare channels, and a watchdog timer; and a two channel DMA controller.
The device offers 3 to 5 V operation at 20 MHz clock, and 2,7 to 5 V operation at 10 MHz. It has very low power consumption, for example just 16 mA typical at 5 V/ 20 MHz and 25 µA at 3 V/32 KHz.
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