ATMEGA8 datasheet(21/25 Pages) ATMEL

21 / 25 page

2486XS–AVR–06/10

ATmega8(L)

Changes from Rev.

2486L-10/03 to

Rev. 2486M-12/03

Updated “Calibrated Internal RC Oscillator” on page 30.

Changes from Rev.

2486K-08/03 to

Rev. 2486L-10/03

Removed “Preliminary” and TBDs from the datasheet.

Renamed ICP to ICP1 in the datasheet.

Removed instructions CALL and JMP from the datasheet.

Updated t

RST in Table 15 on page 38, VBG in Table 16 on page 42, Table 100 on page

244 and Table 102 on page 246.

Replaced text “XTAL1 and XTAL2 should be left unconnected (NC)” after Table 9 in

“Calibrated Internal RC Oscillator” on page 30. Added text regarding XTAL1/XTAL2

and CKOPT Fuse in “Timer/Counter Oscillator” on page 32.

Updated Watchdog Timer code examples in “Timed Sequences for Changing the

Configuration of the Watchdog Timer” on page 45.

Removed bit 4, ADHSM, from “Special Function IO Register – SFIOR” on page 58.

Added note 2 to Figure 103 on page 215.

Updated item 4 in the “Serial Programming Algorithm” on page 238.

10. Added t

WD_FUSE to Table 97 on page 239 and updated Read Calibration Byte, Byte 3, in

Table 98 on page 240.

11. Updated Absolute Maximum Ratings* and DC Characteristics in “Electrical Character-

istics” on page 242.

Changes from Rev.

2486J-02/03 to

Rev. 2486K-08/03

Updated V

BOT values in Table 15 on page 38.

Updated “ADC Characteristics” on page 248.

Updated “ATmega8 Typical Characteristics” on page 249.

Updated “Errata” on page 17.

Changes from Rev.

2486I-12/02 to Rev.

2486J-02/03

Improved the description of “Asynchronous Timer Clock – clkASY” on page 26.

Removed reference to the “Multipurpose Oscillator” application note and the “32 kHz

Crystal Oscillator” application note, which do not exist.

Corrected OCn waveforms in Figure 38 on page 90.

Various minor Timer 1 corrections.

Various minor TWI corrections.

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