Datasheet

248
ATtiny828 [DATASHEET]
8371A–AVR–08/12
Notes: 1. Typical values at 25°C.
2. “Min” means the lowest value where the pin is guaranteed to be read as high.
3. “Max” means the highest value where the pin is guaranteed to be read as low.
4. Under steady-state (non-transient) conditions I/O ports can sink/source more current than the test conditions, how-
ever, the sum current of PORTA and PORTB mustn’t exceed 100mA. Also, the sum current of PORTC and PORTD
mustn’t exceed 120mA. V
OL
/V
OH
is not guaranteed to meet specifications if pin or port currents exceed the limits
given.
5. Pins are not guaranteed to sink/source currents greater than those listed at the given supply voltage.
6. The RESET
pin must tolerate high voltages when entering and operating in programming modes and, as a conse-
quence, has a weak drive strength as compared to regular I/O pins. See “Reset Pin as I/O” on page 279, and “Reset
Pin as I/O” on page 285.
7. Ports with standard sink strength: PORTD0, PORTD3.
8. Ports with high sink strength: PORTA[7:0], PORTB[7:0], PORTC[7:0], PORTD1.
9. Ports with extra high strength: PORTC[7:0]. See “PHDE – Port High Drive Enable Register” on page 81.
10.Results obtained using external clock and methods described in “Minimizing Power Consumption” on page 35. Power
reduction fully enabled (PRR = 0xFF) and with no I/O drive.
11. BOD Disabled.
V
OH
Output High-voltage
(4)
Except RESET pin
(6)
V
CC
= 5V, I
OH
= -10 mA
(5)
4.3
VV
CC
= 3V, I
OH
= -5 mA
(5)
2.5
V
CC
= 1.8V, I
OH
= -2 mA
(5)
1.4
I
LIL
Input Leakage Current,
I/O Pin (absolute value)
V
CC
= 5.5V, pin low <0.05 1 µA
I
LIH
Input Leakage Current,
I/O Pin (absolute value)
V
CC
= 5.5V, pin high <0.05 1 µA
I
LIAC
Input Leakage Current,
Analog Comparator
V
CC
= 5V
V
IN
= V
CC
/2
-50 50 nA
R
RST
Reset Pull-up Resistor V
CC
= 5.5V, input low 30 60 kΩ
R
PU
I/O Pin Pull-up Resistor V
CC
= 5.5V, input low 20 50 kΩ
I
CC
Power Supply Current
(10)
Active 1 MHz, V
CC
= 2V 0.2 0.4 mA
Active 4 MHz, V
CC
= 3V 1.2 2 mA
Active 8 MHz, V
CC
= 5V 3.9 5 mA
Idle 1 MHz, V
CC
= 2V 0.03 0.1 mA
Idle 4 MHz, V
CC
= 3V 0.2 0.4 mA
Idle 8 MHz, V
CC
= 5V 0.9 1.5 mA
Power-down mode
(11)
WDT enabled, V
CC
= 3V 1.8 4 µA
WDT disabled, V
CC
= 3V 0.1 2 µA
Symbol Parameter Condition Min Typ
(1)
Max Units