ATMEGA8-16AU Atmel, ATMEGA8-16AU Datasheet - Page 9

• Manufacturer Part Number: ATMEGA8-16AU
• Description: IC AVR MCU 8K 16MHZ 5V 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8-16AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• For Use With: ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Summary (Continued)
Notes:
2486ZS–AVR–02/11
0x01 (0x21)
0x00 (0x20)
Address
1. Refer to the USART description
2. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
3. Some of the Status Flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on
UBRRH/UCSRC Registers” on page
should never be written
all bits in the I/O Register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions
work with registers 0x00 to 0x1F only
Name
TWSR
TWBR
TWS7
Bit 7
TWS6
Bit 6
(“USART” on page
146)
TWS5
Bit 5
Two-wire Serial Interface Bit Rate Register
TWS4
Bit 4
129) for details on how to access UBRRH and UCSRC
TWS3
Bit 3
Bit 2
–
TWPS1
Bit 1
TWPS0
ATmega8(L)
Bit 0
(“Accessing
Page
166
165
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