ATMEGA645A-AU Atmel, ATMEGA645A-AU Datasheet - Page 650

• Manufacturer Part Number: ATMEGA645A-AU
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645A-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K 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: 64-TQFP
• Processor Series: ATmega
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

650
Address
(0xC4)
(0xC3)
(0xC2)
(0xC1)
(0xC0)
(0xBF)
(0xBE)
(0xBD)
(0xBC)
(0xBB)
(0xBA)
(0xB9)
(0xB8)
(0xB7)
(0xB6)
(0xB5)
(0xB4)
(0xB3)
(0xB2)
(0xB1)
(0xB0)
(0xAF)
(0xAE)
(0xAD)
(0xAC)
(0xAB)
(0xAA)
(0xA9)
(0xA8)
(0xA7)
(0xA6)
(0xA5)
(0xA4)
(0xA3)
(0xA2)
(0xA1)
(0xA0)
(0x9E)
(0x9D)
(0x9C)
(0x9B)
(0x9A)
(0x8E)
(0x8D)
(0x8C)
(0x8B)
(0x9F)
(0x99)
(0x98)
(0x97)
(0x96)
(0x95)
(0x94)
(0x93)
(0x92)
(0x91)
(0x90)
(0x8F)
(0x89)
(0x88)
(0x87)
(0x86)
(0x8A)
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
UBRR0L
Reserved
UCSR0C
UCSR0B
UCSR0A
Reserved
Reserved
Reserved
Reserved
Reserved
USIDR
USISR
USICR
Reserved
ASSR
Reserved
Reserved
OCR2A
TCNT2
Reserved
TCCR2A
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OCR1BH
OCR1BL
OCR1AH
OCR1AL
ICR1H
ICR1L
Name
RXCIE0
USISIE
FOC2A
USISIF
Bit 7
RXC0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
-
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-
-
-
-
-
-
UMSEL0
WGM20
TXCIE0
USIOIF
USIOIE
Bit 6
TXC0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
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-
-
-
-
-
-
USIWM1
COM2A1
UDRIE0
UDRE0
UPM01
USIPF
Bit 5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
Timer/Counter1 Output Compare Register B High
Timer/Counter1 Output Compare Register A High
Timer/Counter1 Output Compare Register B Low
Timer/Counter1 Output Compare Register A Low
Timer/Counter 2 Output Compare Register A
Timer/Counter1 Input Capture Register High
Timer/Counter1 Input Capture Register Low
USART0 Baud Rate Register Low
USIWM0
COM2A0
UPM00
RXEN0
USIDC
EXCLK
Bit 4
FE0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
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-
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-
-
-
-
-
-
USI Data Register
Timer/Counter2
USICNT3
USICS1
WGM21
USBS0
TXEN0
Bit 3
DOR0
AS2
-
-
-
-
-
-
-
-
-
-
-
-
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-
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-
-
-
-
-
USICNT2
UCSZ02
TCN2UB
UCSZ01
USICS0
Bit 2
UPE0
CS22
-
-
-
-
-
-
-
-
-
-
-
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-
USICNT1
OCR2UB
UCSZ00
USICLK
RXB80
Bit 1
U2X0
CS21
-
-
-
-
-
-
-
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USICNT0
UCPOL0
TCR2UB
MPCM0
TXB80
USITC
Bit 0
CS20
-
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8285B–AVR–03/11
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