ATMEGA48_14 Datasheet, PDF (365/377 Pages) ATMEL Corporation – High endurance non-volatile memory segments

ATmega48/88/168
36.6 Rev. 2545O-02/09
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36.7 Rev. 2545N-01/09
Changed minimum Power-on Reset Threshold Voltage (falling) to 0.05V in Table 29-
3 on page 307.
Removed section “Power-on slope rate” from “System and reset characteristics” on
page 307.
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36.8 Rev. 2545M-09/07
Updated “Features” on page 1 and added the note “Not recommended for new
designs”.
Merged the sections Resources, Data Retention and About Code Examples under
one common section, “Resources” on page 8.
Updated Figure 9-4 on page 35.
Updated “System clock prescaler” on page 36.
Updated “Alternate functions of port B” on page 78.
Added section “” on page 307.
Updated “Pin thresholds and hysteresis” on page 330.
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36.9 Rev. 2545L-08/07
Added “Data retention” on page 8.
Updated “ADC characteristics” on page 311.
“Preliminary“ removed through the datasheet.
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36.10 Rev. 2545K-04/07
Updated “Features” on page 1.
Updated code example in “MCUCR – MCU control register” on page 64.
Updated “System and reset characteristics” on page 307.
Updated Note in Table 9-3 on page 30, Table 9-5 on page 31, Table 9-8 on page 34,
Table 9-10 on page 34.
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36.11 Rev. 2545J-12/06
Updated “Interrupts” on page 56.
Updated“Errata Atmel ATmega48” on page 357 .
Changed description in “Analog-to-digital converter” on page 244.
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Updated “Features” on page 1.
2545T–AVR–05/11
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