Datasheet

32.7. Parallel Programming Parameters, Pin Mapping, and Commands..........................................368
32.8. Parallel Programming...............................................................................................................370
32.9. Serial Downloading.................................................................................................................. 377
33. Electrical Characteristics....................................................................................... 383
33.1. Absolute Maximum Ratings......................................................................................................383
33.2. Common DC Characteristics....................................................................................................383
33.3. Speed Grades.......................................................................................................................... 387
33.4. Clock Characteristics................................................................................................................387
33.5. System and Reset Characteristics........................................................................................... 388
33.6. SPI Timing Characteristics....................................................................................................... 389
33.7. Two-Wire Serial Interface Characteristics................................................................................ 390
33.8. ADC Characteristics................................................................................................................. 392
33.9. Parallel Programming Characteristics...................................................................................... 393
34. Typical Characteristics (T
A
= -40°C to 85°C).........................................................396
34.1. ATmega48A Typical Characteristics.........................................................................................396
34.2. ATmega88A: Typical Characteristics........................................................................................418
34.3. ATmega168A Typical Characteristics.......................................................................................443
35. Register Summary.................................................................................................467
35.1. Note..........................................................................................................................................469
36. Instruction Set Summary....................................................................................... 471
37. Packaging Information...........................................................................................476
37.1. 32-pin 32A................................................................................................................................476
37.2. 32-pin 32M1-A..........................................................................................................................477
37.3. 32-pin 32CC1........................................................................................................................... 478
37.4. 28-pin 28M1............................................................................................................................. 478
37.5. 28-pin 28P3..............................................................................................................................479
38. Errata.....................................................................................................................481
38.1. Errata ATmega48A...................................................................................................................481
38.2. Errata ATmega88A...................................................................................................................482
38.3. Errata ATmega168A.................................................................................................................483
39. Datasheet Revision History................................................................................... 485
39.1. Revision A – 4/2018................................................................................................................. 485
39.2. Pre Microchip Revisions...........................................................................................................485
The Microchip Web Site.............................................................................................. 486
Customer Change Notification Service........................................................................486
Customer Support....................................................................................................... 486
Microchip Devices Code Protection Feature............................................................... 486
ATmega48A/88A/168A
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40002007A-page 8