ATmega644PR231 Atmel Corporation, ATmega644PR231 Datasheet - Page 427

• Manufacturer Part Number: ATmega644PR231
• Manufacturer: Atmel Corporation

Specifications of ATmega644PR231

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Max I/o Pins: 32
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Crypto Engine: AES
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Operating Voltage (vcc): 1.8 to 3.6
• Timers: 3
• Frequency Band: 2.4 GHz
• Max Data Rate (mb/s): 2
• Antenna Diversity: Yes
• External Pa Control: Yes
• Power Output (dbm): 3
• Receiver Sensitivity (dbm): -101
• Receive Current Consumption (ma): 13.2
• Transmit Current Consumption (ma): 14.4
• Link Budget (dbm): 104

32. Datasheet Revision History
32.1
32.2
32.3
32.4
8011O–AVR–07/10
Rev. 8011O- 07/10
Rev. 8011N- 10/09
Rev. 8011M- 08/09
Rev. 8011L- 02/09
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
1.
2.
1.
2.
1.
2.
3.
4.
5.
6.
1.
2.
3.
4.
5.
6.
Corrected use of comma in formula for Rp in
ments,” on page 333
Updated document according to Atmel standard
Updated
Added
Updated
Removed VFBGA - pinout from
Updated
Updated Input Hysteresis Unit (V) in the “Typical Characteristics”.
Updated
Updated
Updated
Merged
Updated the front page by removing “Preliminary”.
Updated the
the table note 5.
Updated the table note1 of the
Updated
Table 6-8 on page
”Ordering Information” on page
”Packaging Information” on page
Sections
Section 6.5 ”Low Frequency Crystal Oscillator” on page 34
”Features” on page
”System Control and Reset” on page
”Features” on page 1
”Typical Characteristics” on page 338
”DC Characteristics” on page 325
3.1,
3.2
and
34.
1.
3.3
by inserting a table note 1.
Table 25-6 on page
”Pin Configurations” on page
in one section
420. Removed 44MC and 49C2 packages.
423.
ATmega164P/324P/644P
Table 25-10, “2-wire Serial Bus Require-
50.
by removing
”About” on page
331.
V
2.
IL3
/
V
8.
IH3
and V
OL3
/V
OH3
and
427