Atmel has extended its AT43 family of AVR-based USB microcontrollers with the industry's first low-speed/full-speed configurable USB device controller. The AT43USB351M features a 24 MIPS AVR microcontroller core capable of operating at 1,5 Mhz, 12 Mhz or 24 Mhz. It comes with 24 Kbytes of on-chip mask program ROM and 1 Kbytes of internal SRAM, and features an extensive set of on-chip peripherals, including an 10 bit A/D converter with 12 channels, a PWM with two outputs, 19 GPIO ports, two timer counters and an SPI serial interface. USB 2.0 compliant, the AT43USB351M is a low cost, function-only derivative of Atmel's AT43USB355 with which it is binary compatible. AT43USB351M comes in a 48-pin LQFP package.
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