User Manual

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ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]
8271E–AVR–07/2012
36.4 Rev. 8271B – 04/10
36.5 Rev. 8271A – 12/09
2. Updated the “SRAM Data Memory”, Figure 8-3 on page 18.
3. Updated ”Ordering Information” on page 525 with CCU and CCUR code related to
“32CC1” Package drawing.
4. “32CC1” Package drawing added on ”Packaging Information” on page 533.
1. Updated Table 9-8 with correct value for timer oscilliator 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 on page 44, Section 12.5
on page 69 and Section 14.4 on page 92
4. Figures for bandgap characterization added, Figure 30-34 on page 336, Figure 30-81
on page 361, Figure 30-128 on page 386, Figure 30-175 on page 411, Figure 30-222
on page 436, Figure 30-269 on page 461, Figure 30-316 on page 486 and Figure 30-
363 on page 510.
5. Updated ”Packaging Information” on page 533 by replacing 28M1 with a correct cor-
responding package.
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 on page 6
– Added note for BOD Disable on page 39.
– Added note on BOD and BODSE in ”MCUCR – MCU Control Register” on
page 92 and ”Register Description” on page 283
– Added limitation informatin for the application ”Boot Loader Support –
Read-While-Write Self-Programming” on page 269
– Added limitiation information for ”Program And Data Memory Lock Bits” on
page 285
– Added specified DC characteristics
– Added typical characteristics
– Removed exception information in ”Address Match Unit” on page 216.