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29.1Features ................................................................................................................48
29.2Overview ...............................................................................................................48
29.3IEEE 1149.1 （ JTAG ）边界扫描......................................... ........................... 48
引脚30和引脚功能............................................. ......................... 49
30.1Alternate引脚功能说明............................................. ........................... 49
30.2Alternate引脚功能.............................................. ........................................... 51
31外设模块地址地图............................................. ............. 56
32指令集摘要.............................................. ........................ 57
33包装信息............................................... ........................... 61
33.164A ........................................................................................................................61
33.264M2 .....................................................................................................................62
34电气特性............................................... ....................... 63
34.1Absolute最大额定值* ............................................. .................................... 63
34.2DC特点............................................... ................................................. 63
34.3Operating电压和频率............................................. ........................... 65
34.4Flash和EEPROM存储器特性............................................ ........... 66
34.5ADC特点............................................... ............................................... 67
34.6DAC特点............................................... ............................................... 68
34.7Analog比较特点.............................................. ......................... 68
34.8Bandgap特点............................................... ........................................ 68
34.9Brownout检测特性.............................................. ........................ 69
34.10PAD特点............................................... ............................................. 69
34.11POR特点............................................... ............................................. 70
34.12Reset特点............................................... ........................................... 70
34.13Oscillator特点............................................... ...................................... 70
35典型特征............................................... ........................... 72
35.1Active电源电流.............................................. .............................................. 72
35.2Idle电源电流.............................................. .................................................. 75
35.3Power下电源电流............................................ ..................................... 79
35.4Power ，节省电源电流............................................ ...................................... 80
35.5Pin拉.............................................................................................................80
35.6Pin输出电压与漏/源出电流........................................ ................. 82
35.7Pin阈值和迟滞............................................. ................................. 85
35.8Bod阈值.....................................................................................................87
iv
XMEGA A3
8068T–AVR–12/10
