Datasheet

367
2545T–AVR–05/11
ATmega48/88/168
36.15 Rev. 2545F-05/05
36.16 Rev. 2545E-02/05
36.17 Rev. 2545D-07/04
11. Updated “UCSRnA – USART MSPIM control and status register n A” on page 206.
12. Updated note in “Bit rate generator unit” on page 216.
13. Updated “Bit 6 – ACBG: Analog comparator bandgap select” on page 242.
14. Updated Features in “Analog-to-digital converter” on page 244.
15. Updated “Prescaling and conversion timing” on page 247.
16. Updated “Limitations of debugWIRE” on page 261.
17 Added Table 29-1 on page 306.
18. Updated Figure 16-7 on page 122, Figure 30-45 on page 339.
19. Updated rev. A in “Errata Atmel ATmega48” on page 357.
20. Added rev. C and D in “Errata Atmel ATmega48” on page 357.
1. Added Section 3. “Resources” on page 8
2. Update Section 9.6 “Calibrated internal RC oscillator” on page 33.
3. Updated Section 28.8.3 “Serial programming instruction set” on page 300.
4. Table notes in Section 29.2 “DC characteristics” on page 303 updated.
5. Updated Section 35. “Errata” on page 357.
1. MLF-package alternative changed to “Quad Flat No-Lead/Micro Lead Frame Package
QFN/MLF”.
2. Updated “EECR – The EEPROM control register” on page 22.
3. Updated “Calibrated internal RC oscillator” on page 33.
4. Updated “External clock” on page 35.
5. Updated Table 29-3 on page 307, Table 29-6 on page 309, Table 29-2 on page 306
and Table 28-16 on page 300
6. Added “Pin change interrupt timing” on page 66
7. Updated “8-bit timer/counter block diagram.” on page 90.
8. Updated “SPMCSR – Store program memory control and status register” on page
267.
9. Updated “Enter programming mode” on page 291.
10. Updated “DC characteristics” on page 303.
11. Updated “Ordering information” on page 350.
12. Updated “Errata Atmel ATmega88” on page 360 and “Errata Atmel ATmega168” on
page 361.
1. Updated instructions used with WDTCSR in relevant code examples.
2. Updated Table 9-5 on page 31, Table 29-4 on page 307, Table 27-9 on page 282,
and Table 27-11 on page 283
.
3. Updated “System clock prescaler” on page 36.