ATMEGA328-AU Atmel, ATMEGA328-AU Datasheet - Page 8

• Manufacturer Part Number: ATMEGA328-AU
• Description: IC MCU AVR 32K FLASH 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA328-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4. Register Summary
8271CS–AVR–08/10
Address
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(0xC5)
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UBRR0H
UCSR0C
UBRR0L
Name
UDR0
UMSEL01
Bit 7
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ATmega48A/48PA/88A/88PA/168A/168PA/328/328P
UMSEL00
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UPM01
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USART Baud Rate Register Low
UPM00
Bit 4
USART I/O Data Register
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USBS0
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USART Baud Rate Register High
UCSZ01 /UDORD0
Bit 2
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UCSZ00 / UCPHA0
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UCPOL0
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