ATmega16U4/ATmega32U4
29电气特性............................................... ..................... 380
29.1绝对最大额定值* ............................................. ................................. 380
29.2直流特性............................................... ............................................... 380
29.3外部时钟驱动波形............................................. ........................... 382
29.4外部时钟驱动.............................................. ............................................. 382
29.5最高车速与V
CC
............................................................................................................................382
29.6 2线串行接口特性........................................... ..................... 383
29.7 SPI时序特性.............................................. ................................... 385
29.8硬件启动EntranceTiming特点............................................. 386 ....
30注册摘要............................................... ................................ 388
31指令集摘要.............................................. ....................... 392
32订购信息............................................... ............................ 395
32.1 ATmega16U4 .....................................................................................................395
32.2 ATmega32U4 .....................................................................................................396
33包装信息............................................... ......................... 397
33.1 TQFP44 ..............................................................................................................397
33.2 QFN44 ................................................................................................................398
34勘误表..................................................................................................... 399
34.1 ATmega16U4 / ATmega32U4版本A ............................................ ....................... 399
35数据表修订历史的ATmega16U4 / ATmega32U4 ........... 400
35.1版本7766D - 01/09 .......................................... .................................................. 400
35.2版本7766C - 11/08 .......................................... .................................................. 400
35.3版本7766B - 11/08 .......................................... .................................................. 400
35.4版本7766A - 07/08 .......................................... .................................................. 400
407
7766D–AVR–01/09
