ATmega645 Atmel Corporation, ATmega645 Datasheet - Page 28

• Manufacturer Part Number: ATmega645
• Manufacturer: Atmel Corporation

Specifications of ATmega645

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

12.11 Rev. 2570D – 05/05
12.12 Rev. 2570C – 11/04
12.13 Rev. 2570B – 09/04
12.14 Rev. 2570A – 09/04
2570NS–AVR–05/11
1.
2.
3.
4.
5.
6.
7.
8.
9.
1.
2.
3.
4.
5.
6.
7.
8.
1.
1.
MLF-package alternative changed to “Quad Flat No-Lead/Micro Lead Frame
Package QFN/MLF”.
Added
Updated
Updated
Added
Updated
Updated algorithm
Added
Updated
“0 - 8MHz @ 2.7 - 5.5V; 0 - 16MHz @ 4.5 - 5.5V” on page 1
Table 9-8 on page 30
COM01:0 renamed COM0A1:0 in
85.
PRR-bit descripton added to
Serial Peripheral Interface” on page
“Part Number” on page 225
“Typical Characteristics” on page 306
“DC Characteristics” on page 297
“Alternate Functions of Port G” on page 76
Updated
Initial revision.
“Pin Change Interrupt Timing” on page
Figure 27-12 on page
“Supply Current of I/O modules” on page
“Signature Bytes” on page
Table 27-15 on page
Figure 23-9 on page 209
“Ordering Information” on page
“Ordering Information” on page
“Enter Programming Mode” on page
updated.
updated.
284.
282.
“16-bit Timer/Counter1” on page
updated.
and
“8-bit Timer/Counter0 with PWM” on page
268.
148, and
ATmega325/3250/645/6450
updated.
Figure 27-5 on page
17.
17.
updated.
“USART0” on page
55.
311.
271.
276.
updated.
157.
102,
“SPI –
28