AT90PWM216-16SE ATMEL [ATMEL Corporation], AT90PWM216-16SE Datasheet - Page 31

• Manufacturer Part Number: AT90PWM216-16SE
• Description: 8-bit Microcontroller with 16K Bytes In-System Programmable flash
• Manufacturer: ATMEL [ATMEL Corporation]

7710D–AVR–08/09
The Oscillator can operate in three different modes, each optimized for a specific frequency
range. The operating mode is selected by the fuses CKSEL3..1 as shown in
Table 7-3.
Notes:
The CKSEL0 Fuse together with the SUT1..0 Fuses select the start-up times as shown in
7-4.
CKSEL3..1
100
101
110
111
(2)
1. The frequency ranges are preliminary values. Actual values are TBD.
2. This option should not be used with crystals, only with ceramic resonators.
Crystal Oscillator Operating Modes
Frequency Range
8.0 -16.0
0.4 - 0.9
0.9 - 3.0
3.0 - 8.0
(1)
(MHz)
Recommended Range for Capacitors C1 and
C2 for Use with Crystals (pF)
AT90PWM216/316
12 - 22
12 - 22
12 - 22
–
Table
7-3.
Table
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