
310
8025M–AVR–6/11
ATmega48P/88P/168P
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 (20 mA at VCC = 5V, 10 mA at VCC = 3V) under steady state
conditions (non-transient), the following must be observed:
ATmega48P/88P/168P:
1] The sum of all IOL, for ports C0 - C5, ADC7, ADC6 should not exceed 100 mA.
2] The sum of all IOL, for ports B0 - B5, D5 - D7, XTAL1, XTAL2 should not exceed 100 mA.
3] The sum of all I
OL, for ports D0 - D4, RESET should not exceed 100 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.
4. Although each I/O port can source more than the test conditions (20 mA at V
CC = 5V, 10 mA at VCC = 3V) under steady state
conditions (non-transient), the following must be observed:
ATmega48P/88P/168P:
1] The sum of all I
OH, for ports C0 - C5, D0- D4, ADC7, RESET should not exceed 150 mA.
2] The sum of all IOH, for ports B0 - B5, D5 - D7, ADC6, XTAL1, XTAL2 should not exceed 150 mA.
If II
OH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current
greater than the listed test condition.
29.2.1
ATmega48P DC Characteristics
Notes:
2. Typical values at 25
°C. Maximum values are test limits in production.
3. The current consumption values include input leakage current.
R
RST
Reset Pull-up Resistor
30
60
k
Ω
RPU
I/O Pin Pull-up Resistor
20
50
k
Ω
VACIO
Analog Comparator
Input Offset Voltage
VCC = 5V
Vin = VCC/2
<10
40
mV
IACLK
Analog Comparator
Input Leakage Current
VCC = 5V
Vin = VCC/2
-50
50
nA
tACID
Analog Comparator
Propagation Delay
VCC = 2.7V
VCC = 4.0V
750
500
ns
T
A = -40°C to 85°C, VCC = 1.8V to 5.5V (unless otherwise noted) (Continued)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
T
A = -40°C to 85°C, VCC = 1.8V to 5.5V (unless otherwise noted)
Symbol
Parameter
Condition
Min.
Max.
Units
ICC
Active 1 MHz, VCC = 2V
0.3
0.5
mA
Active 4 MHz, VCC = 3V
1.9
2.5
mA
Active 8 MHz, VCC = 5V
6.8
9
mA
Idle 1 MHz, VCC = 2V
0.06
0.15
mA
Idle 4 MHz, VCC = 3V
0.4
0.7
mA
Idle 8 MHz, VCC = 5V
1.6
2.7
mA
32 kHz TOSC enabled,
VCC = 1.8V
0.75
1.6
A
32 kHz TOSC enabled,
VCC = 3V
0.85
2.6
A
WDT enabled, VCC = 3V
4.2
8
A
WDT disabled, VCC = 3V
0.18
2
A