Missed Watchdog Timer Reset
Features
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AVR® 8-bit RISC Microcontroller with 83 ns Instruction Cycle Time USB Hub with On...
Description
Features
AVR® 8-bit RISC Microcontroller with 83 ns Instruction Cycle Time USB Hub with One Attached and Two External Ports USB Keyboard Function with Three Programmable Endpoints 16 KB Program Memory, 512 Bytes Data SRAM 32 x 8 General-purpose Working Registers 32 Programmable I/O Port Pins Support for 18 x 8 Keyboard Matrix Keyboard Scan Inputs with Pull-up Resistor Four LED Driver Outputs One 8-bit Timer/Counter with Separate Pre-scaler External and Internal Interrupt Sources Programmable Watchdog Timer 6 MHz Oscillator with On-chip PLL 5V Operation with On-chip 3.3V Power Supply 48-lead LQFP Package
Multimedia USB Keyboard Controller with Embedded Hub AT43USB326
Description
The Atmel AT43USB326 is an 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the AT43USB326 achieves throughputs approaching 12 MIPS. The AVR core combines a rich instruction set with 32 general-purpose working registers. All 32 registers are directly connected to the ALU allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
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Furthermore, the AT43USB326 features an on-chip 16-Kbyte program memory and 512 bytes of data memory. It is supported by a standard set of peripherals such as timer/counter...
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