描述 Description

The high-performance, low-power Microchip AVR RISC-based CMOS 8-bit microcontroller combines 16KB ISP flash memory with read-while-write capabilities, 512B EEPROM, 1KB SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, byte-oriented 2-wire serial interface, SPI serial port, 6-channel/10-bit A/D converter (8-channel in TQFP and QFN packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes.
By executing powerful instructions in a single clock-cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

特性 Features

·Advanced RISC architecture·131 powerful instructions – most single clock cycle execution
·32 x 8 general purpose working registers
·Fully static operation
·Up to 16MIPS throughput at 16MHz
·On-chip 2-cycle multiplier

·Non-volatile program and data memories·16Kbytes of in-system self-programmable flash (ATmega48/88/168)·Endurance: 75,000 write/erase cycles

·Optional boot code section with independent lock bits·In-system programming by on-chip boot program
·True read-while-write operation

·512 Bytes EEPROM·Endurance: 100,000 write/erase cycles

·1Kbyte internal SRAM
·Programming lock for software security