Datasheet
19
2588FS–AVR–06/2013
ATtiny261/461/861
9. Datasheet Revision History
Please note that the referring page numbers in this section refer to the complete document.
9.1 Rev. 2588F – 06/13
1. ATtiny261 changed status to “Mature”.
9.2 Rev. 2588E – 08/10
1. Added tape and reel in “Ordering Information” on page 11.
2. Clarified Section 6.4 “Clock Output Buffer” on page 32.
3. Removed text "Not recommended for new designs" from cover page.
9.3 Rev. 2588D – 06/10
1. Removed “Preliminary” from cover page.
2. Added clarification before Table 6-10, “Capacitance for Low-Frequency Crystal Oscilla-
tor,” on page 29.
3. Updated Figure 15-1 “Analog to Digital Converter Block Schematic” on page 143,
changed INTERNAL 1.18V REFERENCE to 1.1V.
4. Updated Table 18-8, “No. of Words in a Page and No. of Pages in the EEPROM,” on
page 173, No. of Pages from 64 to 32 for ATtiny261.
5. Adjusted notes in Table 19-1, “DC Characteristics. T
A
= -40C to +85C, V
CC
= 1.8V to
5.5V (unless otherwise noted).,” on page 187.
9.4 Rev. 2588C – 10/09
1. Updated document template. Re-arranged some sections.
2. Changed device status to "Not Recommended for New Designs".
3. Added Sections:
– “Data Retention” on page 6
– “Clock Sources” on page 25
– “Low Level Interrupt” on page 51
– “Prescaling and Conversion Timing” on page 145
– “Clock speed considerations” on page 131
4. Updated Sections:
– “Code Examples” on page 6
– “High-Frequency PLL Clock” on page 26
– “Normal Mode” on page 99
– “Features” on page 142
– “Temperature Measurement” on page 154
– “Limitations of debugWIRE” on page 164
– Step 1. on page 174
– “Programming the Flash” on page 180
– “System and Reset Characteristics” on page 190
5. Added Figures:
– “Flash Programming Waveforms” on page 182