atmega644v ATMEL Corporation, atmega644v Datasheet - Page 20

• Manufacturer Part Number: atmega644v
• Description: Atmega644 8-bit Avr Microcontroller With 64k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

9.5
9.6
9.7
9.8
9.9
9.10
9.11
20
Rev. 2593I - 08/06
Rev. 2593H - 07/06
Rev. 2593G - 06/06
Rev. 2593F - 04/06
Rev. 2593E - 04/06
Rev. 2593D - 04/06
Rev. 2593C - 03/06
ATmega644
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2.
3.
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2.
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3.
1.
2.
3.
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1.
2.
1.
2.
3.
Updated note in
Updated
Updated
Updated
Updated
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Updated
Updated
Updated
Updated typos.
Updated
Updated
Updated
Updated
Updated
Added “Not recommended in new designs”.
Removed RAMPZ– Extended Z-pointer Register for ELPM/SPM from datasheet.
Updated
Table 7-2 on page
”Timer/Counter Prescaler” on page
”Fast PWM Mode” on page
Figure 14-7 on page
Table 24-7 on page
”Packaging Information” on page
”Calibrated Internal RC Oscillator” on page
”OSCCAL – Oscillator Calibration Register” on page
Table 26-1 on page
”ADC Noise Reduction Mode” on page
”Power-down Mode” on page
”Calibrated Internal RC Oscillator” on page
”Bit 6 – ACBG: Analog Comparator Bandgap Select” on page
”Prescaling and Conversion Timing” on page
Table 10-1 on page
”Pin Configurations” on page
29,
280.
319.
55.
118.
Table 12-11 on page 80
117.
40.
362.
145.
2.
40.
33.
33.
236.
and
Table 24-7 on page
37.
231.
2593MS–AVR–08/07
280.