Datasheet

294
ATmega8(L)
2486M–AVR–12/03
Changes from Rev.
2486F-07/02 to Rev.
2486G-09/02
All page numbers refers to this document.
1 Updated Table 103, “ADC Characteristics,” on page 243.
Changes from Rev.
2486E-06/02 to Rev.
2486F-07/02
All page numbers refers to this document.
1 Changes in “Digital Input Enable and Sleep Modes” on page 53.
2 Addition of OCS2 in “MOSI/OC2 – Port B, Bit 3” on page 57.
3 The following tables has been updated:
Table 51, “CPOL and CPHA Functionality,” on page 129, Table 59, “UCPOL Bit Set-
tings,” on page 155, Table 72, “Analog Comparator Multiplexed Input(1),” on
page 192, Table 73, “ADC Conversion Time,” on page 197, Table 75, “Input Chan-
nel Selections,” on page 203, and Table 84, “Explanation of Different Variables
used in Figure 103 and the Mapping to the Z-pointer,” on page 218.
5 Changes in “Reading the Calibration Byte” on page 230.
6 Corrected Errors in Cross References.
Changes from Rev.
2486D-03/02 to Rev.
2486E-06/02
All page numbers refers to this document.
1 Updated Some Preliminary Test Limits and Characterization Data
The following tables have been updated:
Table 15, “Reset Characteristics,” on page 36, Table 16, “Internal Voltage Refer-
ence Characteristics,” on page 40, DC Characteristics on page 237, Table , “ADC
Characteristics,” on page 243.
2 Changes in External Clock Frequency
Added the description at the end of “External Clock” on page 30.
Added period changing data in Table 99, “External Clock Drive,” on page 239.
3 Updated TWI Chapter
More details regarding use of the TWI bit rate prescaler and a Table 65, “TWI Bit
Rate Prescaler,” on page 170.
Changes from Rev.
2486C-03/02 to Rev.
2486D-03/02
All page numbers refers to this document.
1 Updated Typical Start-up Times.
The following tables has been updated:
Table 5, “Start-up Times for the Crystal Oscillator Clock Selection,” on page 26,
Table 6, “Start-up Times for the Low-frequency Crystal Oscillator Clock Selection,”
on page 26, Table 8, “Start-up Times for the External RC Oscillator Clock Selec-
tion,” on page 27, and Table 12, “Start-up Times for the External Clock Selection,”
on page 30.
2 Added “ATmega8 Typical Characteristics” on page 244.