Datasheet

179
7701F–AVR–10/12
Atmel ATtiny24/44/84 [Preliminary]
Notes: 1. All DC Characteristics contained in this data sheet are based on actual silicon characterization of Atmel ATtiny24/44/84 AVR
microcontrollers manufactured in corner run process technology. These values are preliminary values representing design
targets, and will be updated after characterization of actual Automotive silicon.
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 (10mA at V
CC
= 5V, 5mA 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 60mA.
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 (10mA at V
CC
= 5V, 5mA 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 60mA.
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. Pull up driving strength of the PB3 RESET
pad is weak.
22.2 Speed Grades
Figure 22-1. Maximum Frequency vs. V
CC
I
CC
Power Supply Current
Active 1MHz, V
CC
= 3V 0.4 1.5 mA
Active 4MHz, V
CC
= 3V 1.8 3.0 mA
Active 8MHz, V
CC
= 5V 5.0 10.0 mA
Idle 1MHz, V
CC
= 3V 0.075 0.2 mA
Idle 4MHz, V
CC
= 3V 0.3 0.5 mA
Idle 8MHz, V
CC
= 5V 1.2 2.5 mA
Power-down mode
WDT enabled, V
CC
= 3V 5.0 30 µA
WDT enabled, V
CC
= 5V 9.0 50 µA
WDT disabled, V
CC
= 3V 2.5 24 µA
WDT disabled, V
CC
= 5V 4.3 36 µA
I
ACLK
Analog Comparator Input
Leakage Current
V
CC
= 5V
V
in
= V
CC
/2
-50 50 nA
Table 22-1. DC Characteristics T
A
= -40°C to 125°C, V
CC
= 2.7V to 5.5V (unless otherwise noted)
(1)
(Continued)
Symbol Parameter Condition Min. Typ. Max. Units
2.7V
8MHz
16MHz
4.5V 5.5V
Safe Operating
Safe Operating
Area
Area