ATTINY26L8SU SL383 Atmel, ATTINY26L8SU SL383 Datasheet - Page 130

• Manufacturer Part Number: ATTINY26L8SU SL383
• Description: MCU 8-Bit ATtiny AVR RISC 2KB Flash 3.3V/5V 20-Pin SOIC T/R
• Manufacturer: Atmel

External Clock Drive
Waveforms
External Clock Drive
130
ATtiny26(L)
Figure 70. External Clock Drive Waveforms
Table 63. External Clock Drive
Table 64. External RC Oscillator, Typical Frequencies
Notes:
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
1. R should be in the range 3 kΩ - 100 kΩ, and C should be at least 20 pF. The C values
2. The frequency will vary with package type and board layout.
V
R [kΩ]
given in the table includes pin capacitance. This will vary with package type.
IL1
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from one clock
cycle to the next
33
10
V
IH1
(1)
C [pF]
22
22
V
Min
125
CC
50
50
0
= 2.7 - 5.5V
Max
1.6
1.6
8
2
V
62.5
Min
CC
25
25
0
= 4.5 - 5.5V
650 kHz
2.0 MHz
f
(2)
Max
0.5
0.5
16
1477J–AVR–06/07
2
Units
MHz
ns
ns
ns
μs
μs