微雪电子

AVR

AVR® 8-Bit RISC 单片机选型列表

tiny AVR

Devices Flash (Kbytes) EEPROM (Bytes) SRAM (Bytes) I/O F.max (MHz) Vcc (V) 16bit Timers 8bit Timers ISP WDT
ATtiny13A 1 64 64B+32reg 6 20 1.8-5.5 -- 1 Yes Yes
ATtiny13　ATtiny13V 1 64 64B+32reg 6 20 1.8-5.5 -- 1 Yes Yes
ATtiny24A 2 128 128 12 20 1.8-5.5 1 1 Yes Yes
ATtiny24　ATtiny24V 2 128 128 12 20 1.8-5.5 1 1 Yes Yes
ATtiny44　ATtiny44V 4 256 256 12 20 1.8-5.5 1 1 Yes Yes
ATtiny84　ATtiny84V 8 512 512 12 20 1.8-5.5 1 1 Yes Yes
ATtiny25　ATtiny25V 2 128 128 6 20 1.8-5.5 -- 2 Yes Yes
ATtiny45　ATtiny45V 4 256 256 6 20 1.8-5.5 -- 2 Yes Yes
ATtiny48 4 64 256 24/28 12 1.8-5.5 1 1 Yes Yes
ATtiny88 8 64 512 24/28 12 1.8-5.5 1 1 Yes Yes
ATtiny26　ATtiny26L 2 128 128 16 16 2.7-5.5 -- 2 Yes Yes
ATtiny2313A 2 128 128 18 20 1.8-5.5 1 1 Yes Yes
ATtiny2313　ATtiny2313V 2 128 128 18 20 1.8-5.5 1 1 Yes Yes

mega AVR

Devices Flash (Kbytes) EEPROM (Bytes) SRAM (Bytes) I/O F.max (MHz) Vcc (V) 16bit Timers 8bit Timers ISP WDT
ATmega48PA 4 256 512 23 20 1.8-5.5 1 2 Yes Yes
ATmega48　ATmega48V 4 256 512 23 20 1.8-5.5 1 2 Yes Yes
ATmega88PA 8 512 1024 23 20 1.8-5.5 1 2 Yes Yes
ATmega88　ATmega88V 8 512 1024 23 20 1.8-5.5 1 2 Yes Yes
ATmega168PA 16 512 1024 23 20 1.8-5.5 1 2 Yes Yes
ATmega168　ATmega168V 16 512 1024 23 20 1.8-5.5 1 2 Yes Yes
ATmega328P 32 1024 2048 23 20 1.8-5.5 1 2 Yes Yes
ATmega8A 8 512 1024 23 16 2.7-5.5 1 2 Yes Yes
ATmega8　ATmega8L 8 512 1024 23 16 2.7-5.5 1 2 Yes Yes
ATmega16A 16 512 1024 32 16 2.7-5.5 1 2 Yes Yes
ATmega16　ATmega16L 16 512 1024 32 16 2.7-5.5 1 2 Yes Yes
ATmega32A 32 1024 2048 32 16 2.7-5.5 1 2 Yes Yes
ATmega32　ATmega32L 32 1024 2048 32 16 2.7-5.5 1 2 Yes Yes
ATmega64A 64 2048 4096 53 16 2.7-5.5 2 2 Yes Yes
ATmega64　ATmega64L 64 2048 4096 53 16 2.7-5.5 2 2 Yes Yes
ATmega128A 128 4096 4096 53 16 2.7-5.5 2 2 Yes Yes
ATmega128　ATmega128L 128 4096 4096 53 16 2.7-5.5 2 2 Yes Yes
ATmega1280　ATmega1280V 128 4096 8192 86 16 1.8-5.5 4 2 Yes Yes
ATmega162　ATmega162V 16 512 1024 35 16 1.8-5.5 2 2 Yes Yes
ATmega169PA 16 512 1024 54 16 1.8-5.5 1 2 Yes Yes
ATmega169　ATmega169V 16 512 1024 53 16 1.8-5.5 1 2 Yes Yes
ATmega169P　ATmega169PV 16 512 1024 54 16 1.8-5.5 1 2 Yes Yes
ATmega329P　ATmega329PV 32 1024 2048 54 20 1.8-5.5 1 2 Yes Yes
ATmega8515　ATmega8515L 8 512 512 35 16 2.7-5.5 1 1 Yes Yes
ATmega8535　ATmega8535L 8 512 512 32 16 2.7-5.5 1 2 Yes Yes
ATmega164PA 16 512 1024 32 20 1.8-5.5 1 2 Yes Yes
ATmega164P　ATmega164PV 16 512 1024 32 20 1.8-5.5 1 2 Yes Yes
ATmega324PA 32 1024 2048 32 20 1.8-5.5 1 2 Yes Yes
ATmega324P　ATmega324PV 32 1024 2048 32 20 1.8-5.5 1 2 Yes Yes
ATmega644PA 64 2048 4096 32 20 1.8-5.5 1 2 Yes Yes
AT90CAN128 128 4096 4096 53 16 2.7-5.5 2 2 Yes Yes

xmega AVR

Devices Flash (Kbytes) EEPROM (Kbytes) SRAM (Kbytes) I/O F.max (MHz) Vcc (V) 16bit Timers 8bit Timers ISP WDT
ATXmega64A3 64 2 4 50 32 1.6-3.6 7 - Yes Yes
ATXmega128A1 128 2 8 78 32 1.6-3.6 8 - Yes Yes
ATXmega256A3 256 4 16 50 32 1.6-3.6 7 - Yes Yes

选型范例

  • 基本要求：4K FLASH ROM，8个IO以上，8路AD，6路PWM，10个外部中断
  • 推荐：ATmega48V　ATmega48
  • 基本要求：16K FLASH ROM，50个IO口以上，超低功耗
  • 推荐：ATmega169PV　ATmega169P
  • 基本要求：64K FLASH ROM，50个IO口以上，4K EEPROM，8路AD，I2C，SPI，WDT
  • 推荐：ATmega64L　ATmega64
  • 基本要求：引脚兼容AT89S51/S52，16K FLASH ROM，1K EEPROM，WDT，2路USART
  • 推荐：ATmega162V　ATmega162
  • 基本要求：引脚兼容AT89C2051，2K FLASH ROM，128BIT EEPROM，WDT
  • 推荐：ATtiny2313V　ATtiny2313