Atmel ATtiny25 User Manual

151
7598H–AVR–07/09
ATtiny25/45/85
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
CC
= 5V, 5 mA at V
CC
= 3V) under steady state con-
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
CC
= 5V, 5 mA at V
CC
= 3V) under steady state
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
CC values.
7. Brown-Out Detection (BOD) disabled.
22.2 External Clock Drive Waveforms
Figure 22-1. External Clock Drive Waveforms
I
CC
(6)
Power Supply Current
Active 4MHz, V
CC
= 3V 1.25 3 mA
Active 8MHz, V
CC
= 5V 5 10 mA
Active 16MHz, V
CC
= 5V 10 15 mA
Idle 4MHz, V
CC
= 3V 0.4 0.5 mA
Idle 8MHz, V
CC
= 5V 1.2 2 mA
Idle 16MHz, V
CC
= 5V 2.5 5 mA
Power-down mode
(7)
WDT enabled, V
CC
= 3V 5 30 µA
WDT disabled, V
CC
= 3V 2 24 µA
WDT enabled, V
CC
= 5V 9 50 µA
WDT disabled, V
CC
= 5V 3 36 µA
Table 22-1. DC Characteristics T
A
= -40°C to 125°C, V
CC
= 2.7V to 5.5V (unless otherwise noted)
(1)
.
Symbol Parameter Condition Min.
(2)
Typ. Max.
(3)
Units
V
IL1
V
IH1

Atmel ATtiny25 Specifications

General

Brand	Atmel
Model	ATtiny25
Category	Microcontrollers
Language	English