AT43USB351M

Features AVR® Microcontroller-based Function Controller Fully Programmable USB Low/Full-speed Function with Five Endpoints High Performance and Low Power 1.5/12/24 MIPs AVR RISC Microcontroller 120 Powerful Instructions – Most with 83 ns Execution Cycle Times 24 KB Masked ROM Program Memory 1 KB Internal SRAM 32 x 8 General-purpose Working Registers 19 Programmable I/O Port Pins 12 Channels 10-bit A-to-D Converter Programmable SPI Serial Interface One 8-bit Timer Counter with Separate Pre-scaler One 16-bit Timer Counter with Separate Pre-scaler and Two PWMs External and Internal Interrupt Sources Programmable Watchdog Timer Low Power Idle and Power-down Modes 6 MHz Crystal Oscillator with PLL 5V Operation with On-chip 3.3V Regulators 48-lead LQFP Package Binary-compatible with the AT43USB355 Full-speed/ Low-speed USB Microcontroller with ADC and PWM AT43USB351M Summary Description The Atmel AT43USB351M is a USB AVR-based microcontroller that is configurable as a low-speed or full-speed USB device. Its program memory is a 24-Kbyte mask programmable ROM and its data memory is 1-Kbyte SRAM. The on-chip peripherals consists of 19 general-purpose I/O ports, two timer-counters, SPI serial interface, a www.DataSheet4U.com PWM and a 10-bit AD converter with 12 input channels. The MCU of the AT43USB351M is a high performance 8-bit AVR RISC that operates at a clock frequency of 1.5 MHz, 12 MHz or 24 MHz. The A-to-D converter has a minimum convers...