Datasheet

314
7734Q–AVR–02/12
AT90PWM81/161
28. Datasheet Revision History for AT90PWM81/161
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
28.1 Rev. 7734A
1. Document creation.
28.2 Rev. 7734B
1. GPIO3 suppressed for compatibility reason.
2. Pinout: PB7 & PD7 swapped.
3. CKSEL values redefined.
4. Clock switching & clock monitoring added.
5. PSCrOUT name changed to PSCOUTR.
6. ADC Auto trigger on PSC synchro improved.
7. Parallel programming updated for 20 pins.
8. Fuses updated: compatibility & potential conflict for reset levels.
28.3 Rev. 7734C
1. Pin out change request.
2. Several improvements on paragraph indent and numbering.
3. P28-29: Device clock option select.
4. P194: BGD bit suppressed.
5. P311-314: Register address changed.
28.4 Rev. 7734D
1. Pin name AGND.
2. PSC reduced support enhanced resolution (Application request).
28.5 Rev. 7734E
1. Speed at 3V, 12Mhz.
2. Add chapter Pin description (PE request).
3. Table 7-1: PE function for 128k RC oscillator is I/O.
4. Details on RC oscillator enable page 30.
5. New warnings on clock switching page 40.
6. Details on CKRC81 page 45.
7. Wake up source PSC not available in PowedDown page 48.
8. Typos on DIDR0/1.
9. ADC sample & hold time on auto conversion.
10. PSC input beheavior during reset precision.
11. Update using the PRR examples with exsisting peripherals.
12. Parallel programing input pins.
13. I/O hysteresis curve.