Datasheet

261
ATmega48/88/168 Automotive [DATASHEET]
7530K–AVR–07/14
Input high voltage, except
XTAL1 and RESET pins
V
CC
= 2.7V - 5.5V V
IH
0.6V
CC
(2)
V
CC
+ 0.5 V
Input high voltage, XTAL1
pin
V
CC
= 2.7V - 5.5V V
IH1
0.7V
CC
(2)
V
CC
+ 0.5 V
Input high voltage, RESET
pin
V
CC
= 2.7V - 5.5V V
IH2
0.9V
CC
(2)
V
CC
+ 0.5 V
Output low voltage
(3)
I
OL
= 20mA, V
CC
= 5V
I
OL
= 5mA, V
CC
= 3V
V
OL
0.8
0.5
V
Output high voltage
(4)
I
OH
= –20mA, V
CC
= 5V
I
OH
= –10mA, V
CC
= 3V
V
OH
4.1
2.3
V
Input leakage
current I/O pin
V
CC
= 5.5V, pin low
(absolute value)
I
IL
50 nA
Input leakage
current I/O pin
V
CC
= 5.5V, pin high
(absolute value)
I
IH
50 nA
Reset pull-up resistor Vcc = 5.0V, Vin = 0V R
RST
30 60 kW
I/O pin pull-up resistor R
PU
20 50 kW
26.2 DC Characteristics (Continued)
T
A
= –40°C to +125°C, V
CC
= 2.7V to 5.5V (unless otherwise noted)
Parameter Condition Symbol Min.
(5)
Typ. Max.
(5)
Unit
Notes: 1. “Max” means the highest value where the pin is guaranteed to be read as low
2. “Min” means the lowest value where the pin is guaranteed to be read as high
3. Although each I/O port can sink more than the test conditions (20mA at V
CC
= 5V, 10mA at V
CC
= 3V) under steady
state conditions (non-transient), the following must be observed:
Atmel ATmega48:
1] The sum of all IOL, for ports C0 - C5, should not exceed 70mA.
2] The sum of all IOL, for ports C6, D0 - D4, should not exceed 70mA.
3] The sum of all IOL, for ports B0 - B7, D5 - D7, should not exceed 70mA.
ATmega88/168:
1] The sum of all IOL, for ports C0 - C5, should not exceed 100mA.
2] The sum of all IOL, for ports C6, D0 - D4, should not exceed 100mA.
3] The sum of all IOL, for ports B0 - B7, D5 - D7, should not exceed 100mA.
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.
4. Although each I/O port can source more than the test conditions (20mA at V
CC
= 5V, 10mA at V
CC
= 3V) under steady
state conditions (non-transient), the following must be observed:
ATmega48:
1] The sum of all IOH, for ports C0 - C5, should not exceed 70mA.
2] The sum of all IOH, for ports C6, D0 - D4, should not exceed 70mA.
3] The sum of all IOH, for ports B0 - B7, D5 - D7, should not exceed 70mA.
ATmega88/168:
1] The sum of all IOH, for ports C0 - C5, should not exceed 100mA.
2] The sum of all IOH, for ports C6, D0 - D4, should not exceed 100mA.
3] The sum of all IOH, for ports B0 - B7, D5 - D7, should not exceed 100mA.
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.
5. All DC characteristics contained in this datasheet are based on actual ATmega88 microcontrollers characterization.
6. Values with Section 7.7.1 “Power Reduction Register - PRR” on page 35 enabled (0xEF).