Electrical Characteristics 287
Absolute Maximum Ratings* 287
DC Characteristics 287
External Clock Drive Waveforms 289
External Clock Drive 289
Two-wire Serial Interface Characteristics 290
SPI Timing Characteristics 291
ADC Characteristics 293
ATmega32 Typical Characteristics 296
Register Summary 327
Instruction Set Summary 329
Ordering Information 332
Packaging Information 333
44A 333
40P6 334
44M1 335
Errata 336
ATmega32, rev. A to F 336
Datasheet Revision History 337
Changes from Rev. 2503M-05/08............................................................... to Rev.
2503N-06/08 337
Changes from Rev. 2503L-05/08................................................................ to Rev.
2503M-05/08 337
Changes from Rev. 2503K-08/07 ............................................................... to Rev.
2503L-05/08 337
Changes from Rev. 2503J-10/06 to Rev.
2503K-08/07 337
Changes from Rev. 2503I-04/06 to Rev.
2503J-10/06 337
Changes from Rev. 2503H-03/05 to Rev. 2503I-04/06 337
Changes from Rev. 2503G-11/04 to Rev. 2503H-03/05 338
Changes from Rev. 2503F-12/03 to Rev. 2503G-11/04 338
Changes from Rev. 2503E-09/03 to Rev. 2503F-12/03 338
Changes from Rev. 2503D-02/03 to Rev. 2503E-09/03 338
Changes from Rev. 2503C-10/02 to Rev. 2503D-02/03 339
Changes from Rev. 2503B-10/02 to Rev. 2503C-10/02 339
Changes from Rev. 2503A-03/02 to Rev. 2503B-10/02 339
Table of Contents i
2503N–AVR–06/08
ATmega32(L)
v