Datasheet

 2018 Microchip Technology Inc. Data Sheet Complete DS40002072A-page 8
ATmega32A
27 Memory Programming ......................................................................... 256
27.1 Program And Data Memory Lock Bits ........................................................... 256
27.2 Fuse Bits........................................................................................................ 257
27.3 Signature Bytes ............................................................................................. 258
27.4 Calibration Byte ............................................................................................. 258
27.5 Page Size ...................................................................................................... 259
27.6 Parallel Programming Parameters, Pin Mapping, and Commands ............... 259
27.7 Parallel Programming .................................................................................... 261
27.8 SPI Serial Downloading................................................................................. 269
27.9 SPI Serial Programming Pin Mapping ........................................................... 269
27.10 Programming via the JTAG Interface ............................................................ 274
28 Electrical Characteristics .................................................................... 286
28.1 Absolute Maximum Ratings* ......................................................................... 286
28.2 DC Characteristics ........................................................................................ 286
28.3 Speed Grades ............................................................................................... 288
28.4 Clock Characteristics..................................................................................... 288
28.5 System and Reset Characteristics ................................................................ 289
28.6 Two-wire Serial Interface Characteristics ...................................................... 289
28.7 SPI Timing Characteristics ............................................................................ 291
28.8 ADC Characteristics ...................................................................................... 293
29 Typical Characteristics ........................................................................ 296
29.1 Active Supply Current.................................................................................... 296
29.2 Idle Supply Current........................................................................................ 299
29.3 Power-down Supply Current.......................................................................... 302
29.4 Power-save Supply Current........................................................................... 303
29.5 Standby Supply Current ................................................................................ 304
29.6 Pin Pull-up ..................................................................................................... 304
29.7 Pin Driver Strength ........................................................................................ 306
29.8 Pin Thresholds and Hysteresis...................................................................... 308
29.9 BOD Thresholds and Analog Comparator Offset .......................................... 311
29.10 Internal Oscillator Speed ............................................................................... 313
29.11 Current Consumption of Peripheral Units...................................................... 319
29.12 Current Consumption in Reset and Reset Pulsewidth .................................. 322
30 Register Summary ............................................................................... 324
31 Instruction Set Summary ..................................................................... 326