External Clock Drive Waveforms - Atmel ATtiny25 Manual

Table 22-1. DC Characteristics T
Symbol Parameter
Power Supply Current
(6)
I
CC
Power-down mode
Notes: 1. All DC Characteristics contained in this data sheet result from actual silicon characterization.
2. "Max" means the highest value where the pin is guaranteed to be read as low.
3. "Min" means the lowest value where the pin is guaranteed to be read as high.
4. Although each I/O port can sink more than the test conditions (8 mA at V
ditions (non-transient), the following must be observed:
1] The sum of all IOL, for all ports, should not exceed 60 mA.
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater
than the listed test condition.
5. Although each I/O port can source more than the test conditions (8 mA at V
conditions (non-transient), the following must be observed:
1] The sum of all IOH, for all ports, should not exceed 60 mA.
If IOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current
greater than the listed test condition.
6. All I/O modules are turned off (PRR = 0xFF) for all I
7. Brown-Out Detection (BOD) disabled.
22.2

External Clock Drive Waveforms

Figure 22-1. External Clock Drive Waveforms
7598H–AVR–07/09
= -40°C to 125°C, V
A
Condition
Active 4MHz, V
CC
Active 8MHz, V
CC
Active 16MHz, V
Idle 4MHz, V = 3V
CC
Idle 8MHz, V = 5V
CC
Idle 16MHz, V
CC
WDT enabled, V
WDT disabled, V
(7)
WDT enabled, V
WDT disabled, V
V
IH1
V
IL1
= 2.7V to 5.5V (unless otherwise noted)
CC
(2)
Min.
= 3V
= 5V
= 5V
CC
= 5V
= 3V
CC
= 3V
CC
= 5V
CC
= 5V
CC
CC
values.
CC
ATtiny25/45/85
(1)
.
(3)
Typ. Max.
1.25 3
5 10
10 15
0.4 0.5
1.2 2
2.5 5
5 30
2 24
9 50
3 36
= 5V, 5 mA at V = 3V) under steady state con-
CC
= 5V, 5 mA at V = 3V) under steady state
CC CC
Units
mA
mA
mA
mA
mA
mA
µA
µA
µA
µA
151