Microchip Technology AVR32DB28-E/SS MCUs 32KB，4KB RAM，28引脚，24MHz，3个运算放大器，MVIO，12位ADC，3个零交叉检测，DAC，UART，2个SPI，TWI
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Core: AVR
Data RAM Size: 4 kB
Data RAM Type: SRAM
Data ROM Size: 512 B
Data ROM Type: EEPROM
ADC Resolution: 12 bit
DAC Resolution: 10 bit
Data Bus Width: 8 bit
Interface Type: I2C, SPI, UART
Mounting Style: SMD/SMT
Number of I/Os: 22 I/O
Watchdog Timers: Watchdog Timer
Processor Series: AVRDB
Program Memory Size: 32 kB
Program Memory Type: Flash
Supply Voltage - Max: 5.5 V
Supply Voltage - Min: 1.8 V
Number of ADC Channels: 9 Channel
Maximum Clock Frequency: 24 MHz
Number of Timers/Counters: 4 Timer
Maximum Operating Temperature: + 125 C
Minimum Operating Temperature: - 40 C
