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AT43USB326 Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT43USB326 Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 102 page  1 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 Description The Atmel AT43USB326 is an 8-bit microcontroller based on the AVR RISC architec- ture. By executing powerful instructions in a single clock cycle, the AT43USB326 achieves throughputs approaching 12 MIPS. The AVR core combines a rich instruc- tion 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 effi- cient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. 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 modules, watchdog timer and internal and external interrupt sources. The major peripheral included in the AT43USB326 is the USB Hub with an embedded keyboard controller function. Multimedia USB Keyboard Controller with Embedded Hub AT43USB326 3313D–USB–04/06 |
Número de pieza similar - AT43USB326 |
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Descripción similar - AT43USB326 |
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