ATTINY26L8SU SL383 Atmel, ATTINY26L8SU SL383 Datasheet - Page 32
ATTINY26L8SU SL383
Manufacturer Part Number
ATTINY26L8SU SL383
Description
MCU 8-Bit ATtiny AVR RISC 2KB Flash 3.3V/5V 20-Pin SOIC T/R
Manufacturer
Atmel
Datasheet
1.ATTINY26L8PU.pdf
(185 pages)
- Current page: 32 of 185
- Download datasheet (3Mb)
High Frequency PLL
Clock – PLL
32
ATtiny26(L)
CLK
There is an internal PLL that provides nominally 64 MHz clock rate locked to the RC
Oscillator for the use of the Peripheral Timer/Counter1 and for the system clock source.
When selected as a system clock source, by programming (“0”) the fuse PLLCK, it is
divided by four. When this option is used, the CKSEL3..0 must be set to “0001”. This
clocking option can be used only when operating between 4.5 - 5.5V to guaratee safe
operation. The system clock frequency will be 16 MHz (64 MHz/4). When using this
clock option, start-up times are determined by the SUT Fuses as shown in Table 15.
See also “PCK Clocking System” on page 25.
Table 15. Start-up Times for the PLLCK
SUT1..0
00
01
10
11
Start-up Time from
Power-down
16K CK
1K CK
1K CK
1K CK
Additional Delay from
Reset (V
4.1 ms
65 ms
CC
–
–
= 5.0V)
Recommended Usage
BOD enabled
Fast rising power
Slowly rising power
Slowly rising power
1477J–AVR–06/07
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