ATMEGA645V-8AU Atmel, ATMEGA645V-8AU Datasheet - Page 270

• Manufacturer Part Number: ATMEGA645V-8AU
• Description: IC AVR MCU FLASH 64K 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645V-8AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• 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, 64-VQFP
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, UART, USI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Controller Family/series: AVR MEGA
• No. Of I/o's: 54
• Eeprom Memory Size: 2KB
• Ram Memory Size: 4KB
• Cpu Speed: 8MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• Data Rom Size: 2 KB
• Height: 1 mm
• Length: 14 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Width: 14 mm
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - 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 SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2570M–AVR–04/11
Table 26-8.
Table 26-9.
Table 26-10. No. of Words in a Page and No. of Pages in the Flash
Table 26-11. No. of Words in a Page and No. of Pages in the EEPROM
EEPROM Size
(32/64K bytes)
XA1
16/32K words
1K/2K bytes
0
0
1
1
Flash Size
Command Byte
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
XA1 and XA0 Coding
Command Byte Bit Coding
XA0
0
1
0
1
Page Size
Page Size
4/8 bytes
64/128
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte
determined by BS1).
Load Data (High or Low data byte for Flash determined by BS1).
Load Command
No Action, Idle
words
Command Executed
Chip Erase
Write Fuse bits
Write Lock bits
Write Flash
Write EEPROM
Read Signature Bytes and Calibration byte
Read Fuse and Lock bits
Read Flash
Read EEPROM
EEA[1/2:0]
PCWORD
PCWORD
PC[5/6:0]
ATmega325/3250/645/6450
No. of Pages
No. of Pages
256
256
[13/14:6/7]
[13/14:2/3]
PCPAGE
PCPAGE
EEA
PC
EEAMSB
PCMSB
13/14
13/14
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