41.   Datenbuch-Revisionen

41.1   Rev. 8271J – 11/2015

1. Updated errata sections:
   • ”Errata ATmega48A”
   • ”Errata ATmega48PA”
   • ”Errata ATmega88A”
   • ”Errata ATmega88PA”
   • ”Errata ATmega168A”
   • ”Errata ATmega168PA”
   • ”Errata ATmega328”
   • ”Errata ATmega328P”

41.2   Rev. 8271I – 10/2014

1. Several headings have been corrected and electrical characteristics for 105°C have been structured.

41.3   Rev. 8271H – 08/2014

1. Updated text in section Section 16.9.3 ”Fast PWM Mode” concerning compare units allowing generation of PWM waveforms, referring to table 16-2.
2. Updated WDT Assembly code example in Section 10.10.5 ”Watchdog Timer” (and onwards)
3. Updated footnote 1 for tables giving DC Characteristics, ”ATmega88PA DC Characteristics – Current Consumption”, ”ATmega168PA DC Characteristics – Current Consumption” and ”ATmega328P DC Characteristics – Current Consumption”.
4. Figure 31-1 has been updated with the correct plot.
5. Figure 31-333 has been updated with the correct plot.
6. Changed description of external interrupt behavior in deep sleep in Section 13. ”External Interrupts”.
7. Added wait delay for tWD_FUSE in Table 28-18.
8. Updated errata for rev A of 48PA and 88PA in Section 40.2 and Section 40.4.
9. Updated back page and footer according to datasheet template of 05/2014

41.4   Rev. 8271G – 02/2013

1. Added ”Electrical Characteristics (T_A = -40°C to 105°C)”.
2. Added ”ATmega48PA Typical Characteristics – (T_A = -40°C to 105°C)”.
3. Added ”ATmega88PA Typical Characteristics – (T_A = -40°C to 105°C)”.
4. Added ”ATmega168PA Typical Characteristics – (T_A = -40°C to 105°C)”.
5. Added ”ATmega328P Typical Characteristics – (T_A = -40°C to 105°C)”.

41.5   Rev. 8271F – 08/2012

1. Added ”DC Characteristics”. The following tables for DC characteristics - T_A = -40 °C to 105 °C added:
   • Table 29-2
   • Table 30-3
   • Table 30-4
   • Table 30-5
2. Replaced the following typical characteristics by the plots that include les characteristics at “TA =-40 °C to 105 °C”:
   • ”ATmega48PA Typical Characteristics”
   • ”ATmega88PA Typical Characteristics”
   • ”ATmega168PA Typical Characteristics”
   • ”ATmega328P Typical Characteristics”
3. Removed the Power Save (Psave) maximum numbers for all devices throughout ”Electrical Characteristics – (T_A = -40 °C to 85 °C)”.
4. Changed the powerdown maximum numbers from 8.5 and 3 µA to 10 and 5 µA (ATmega48PA, ATmega88PA, ATmega168PA and ATmega328P).
5. Changed the table note “Maximum values are characterized values and not test limits in production” to “Max values are test limits in production throughout ”Electrical Characteristics – (T_A = -40 °C to 85 °C)”.

41.6   Rev. 8271E – 07/2012

1. Updated Figure 1-1. Overlined “RESET” in 28 MLF top view and in 32 MLF top view.
2. Added EEAR9 bit to the ”EEARH and EEARL – The EEPROM Address Register” and updated the all bit descriptions accordingly.
3. Added a footnote “EEAR9 and EEAR8 are unused bits in ATmega48A/48PA and must always be written to zero” to ”EEARH and EEARL – The EEPROM Address Register”.
4. Updated Table 18-8, “Waveform Generation Mode Bit Description”. WGM2, WGM1 and WGM0 changed to WGM22, WGM21 and WGM20 respectively.
5. Updated ”TCCR2B – Timer/Counter Control Register B”. bit 2 (CS22) and bit 3 (WGM22) changed from R (read only) to R/W (read/write).
6. Updated the definition of fosc. fosc is the system clock frequency (not XTAL pin frequency)
7. Updated ”SPMCSR – Store Program Memory Control and Status Register”. Bit 0 renamed SPMEN and added bit 5 “SIGRD”.
8. Replaced “SELFPRGEN” by “SPMEN” throughout the whole datasheet including in the “code examples”, except in ”Program And Data Memory Lock Bits” and in ”Fuse Bits”.
9. Updated ”Register Summary” to include the bits: SIGRD and SPMEN in the SMPCSR register.
10. Updated the Table 30-1. Removed the footnote.
11. Updated the footnote of the Table 29-13. Removed the footnote “Note 2”.
12. Updated ”Errata”. Added “Errata” TWI Data setup time can be too short.

41.7   Rev. 8271D – 05/11

1. Added Atmel QTouch Sensing Capability Feature
2. Updated ”Register Description” with PINxn as R/W.
3. Added a footnote to the PINxn.
4. Updated “Ordering Information”,”ATmega328”. Added “ATmega328-MMH” and “ATmega328-MMHR”.
5. Updated “Ordering Information”,”ATmega328P”. Added “ATmega328P-MMH” and “ATmega328P-MMHR”.
6. Added “Ordering Information” for ATmega48PA/88PA/168PA/328P @ 105 °C
7. Updated ”Errata ATmega328” and ”Errata ATmega328P”
8. Updated the datasheet according to the Atmel new brand style guide.

41.8   Rev. 8271C – 08/10

1. Added 32UFBGA Pinout, Table 1-1.
2. Updated the “SRAM Data Memory”, Figure 8-3.
3. Updated ”Ordering Information” with CCU and CCUR code related to “32CC1” Package drawing.
4. “32CC1” Package drawing added ”Packaging Information”.

41.9   Rev. 8271B – 04/10

1. Updated Table 9-8 with correct value for timer oscillator at xtal2/tos2
2. Corrected use of SBIS instructions in assembly code examples.
3. Corrected BOD and BODSE bits to R/W in Section 10.11.2, Section 12.5 and Section 14.4
4. Figures for bandgap characterization added, Figure 31-34, Figure 31-81, Figure 31-128 , Figure 31-176, Figure 31-223, Figure 31-271, Figure 31-318 and Figure 31-365.
5. Updated ”Packaging Information” by replacing 28M1 with a correct corresponding package.

41.10   Rev. 8271A – 12/09

1. New datasheet 8271 with merged information for ATmega48PA, ATmega88PA, ATmega168PA and ATmega48A, ATmega88A andATmega168A. Also included information on ATmega328 and ATmega328P
2. Changes done:
   • New devices added: ATmega48A/ATmega88A/ATmega168A and ATmega328
   • Updated Feature Description
   • Updated Table 2-1
   • Added note for BOD Disable.
   • Added note on BOD and BODSE in ”MCUCR – MCU Control Register” and ”Register Description”
   • Added limitation information for the application ”Boot Loader Support – Read-While-Write Self-Programming”
   • Added limitation information for ”Program And Data Memory Lock Bits”
   • Added specified DC characteristics
   • Added typical characteristics
   • Removed exception information in ”Address Match Unit”.