The one-cylinder MC33813 and two cylinder MC33814 electronic control semiconductors are suited for small internal combustion engines for transportation, industrial and consumer applications. The ICs compliment and extend the company’s motorcycle engine control unit (ECU) reference platform, which retains the MC9S12 microcontroller but benefits from further integration and improved diagnostic capabilities.
The MC33813 is an engine control analog power IC intended for one-cylinder motorcycle and other small engine applications. It consists of five integrated low-side drivers and two pre-drivers. The MC33814 is intended for two-cylinder engine applications. It consists of six integrated low-side drivers and three pre-drivers.
Both ICs include a variable reluctance sensor input circuit, a voltage preregulator using an external pass transistor and two 5-V internal regulators (one for the MCU Vcc supply and the other for use as a protected sensor supply). Also included is am MCU reset control circuit with watchdog, an ISO 9141 K Line interface for diagnostic communication and a SPI.(ea/10,000, MC33813, $1.69; MC33814, $2.06; available now)
By Christina Nickolas
Freescale Semiconductor , Austin , TX
Information 800-521-6274
www.freescale.com
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