Datasheet

221
2586N–AVR–04/11
ATtiny25/45/85
28. Datasheet Revision History
28.1 Rev. 2586N-04/11
1. Added:
– Section “Capacitive Touch Sensing” on page 6.
2. Updated:
– Document template.
– Removed “Preliminary” on front page. All devices now final and in production.
– Section “Limitations” on page 37.
– Program example on page 51.
– Section “Overview” on page 126.
– Table 17-4 on page 139.
– Section “Limitations of debugWIRE” on page 144.
– Section “Serial Programming Algorithm” on page 156.
– Table 21-7 on page 171.
– EEPROM errata on pages 217, 217, 218, 219, and 220
– Ordering information on pages 209, 210, and 211.
28.2 Rev. 2586M-07/10
1. Clarified Section 6.4 “Clock Output Buffer” on page 32.
2. Added Ordering Codes -SN and -SNR for ATtiny25 extended temperature.
28.3 Rev. 2586L-06/10
1. Added:
– TSSOP for ATtiny45 in “Features” on page 1, Pinout Figure 1-1 on page 2, Ordering
Information in Section 25.2 “ATtiny45” on page 210, and Packaging Information in
Section 26.4 “8X” on page 215
– Table 6-11, “Capacitance of Low-Frequency Crystal Oscillator,” on page 29
– Figure 22-36 on page 196 and Figure 22-37 on page 196, Typical Characteristics
plots for Bandgap Voltage vs. V
CC
and Temperature
– Extended temperature in Section 25.1 “ATtiny25” on page 209, Ordering Information
– Tape & reel part numbers in Ordering Information, in Section 25.1 “ATtiny25” on
page 209 and Section 25.2 “ATtiny45” on page 210
2. Updated:
– “Features” on page 1, removed Preliminary from ATtiny25
– Section 8.4.2 “Code Example” on page 46
– “PCMSK – Pin Change Mask Register” on page 54, Bit Descriptions
– “TCCR1 – Timer/Counter1 Control Register” on page 92 and “GTCCR – General
Timer/Counter1 Control Register” on page 93, COM bit descriptions clarified
– Section 20.3.2 “Calibration Bytes” on page 154, frequencies (8 MHz, 6.4 MHz)
– Table 20-11, “Minimum Wait Delay Before Writing the Next Flash or EEPROM
Location,” on page 157, value for t
WD_ERASE