Datasheet

329
7674F–AVR–09/09
ATmega164P/324P/644P
26.1 DC Characteristics
Note: 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 VCC = 5V, 10mA at VCC = 3V) under steady state
conditions (non-transient), the following must be observed:
1.)The sum of all IOL, for ports A0-A7, G2, C4-C7 should not exceed 100 mA.
2.)The sum of all IOL, for ports C0-C3, G0-G1, D0-D7 should not exceed 100 mA.
3.)The sum of all IOL, for ports G3-G5, B0-B7, E0-E7 should not exceed 100 mA.
4.)The sum of all IOL, for ports F0-F7 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 (20mA at VCC = 5V, 10mA at VCC = 3V) under steady
state conditions (non-transient), the following must be observed:
1)The sum of all IOH, for ports A0-A7, G2, C4-C7 should not exceed 100 mA.
2)The sum of all IOH, for ports C0-C3, G0-G1, D0-D7 should not exceed 100 mA.
3)The sum of all IOH, for ports G3-G5, B0-B7, E0-E7 should not exceed 100 mA.
T
A
= -40°C to 125° C, V
CC
= 2.7V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min. Typ. Max. Units
V
IL
Input Low Voltage,Except
XTAL1 and Reset pin
V
CC
= 2.7V - 5.5V -0.5 0.3V
CC
(1)
V
V
IL1
Input Low Voltage,
XTAL1 pin
V
CC
= 2.7V - 5.5V -0.5 0.1V
CC
(1)
V
V
IL2
Input Low Voltage,
RESET pin
V
CC
= 2.7V - 5.5V -0.5 0.3V
CC
(1)
V
V
IH
Input High Voltage,
Except XTAL1 and
RESET pins
V
CC
= 2.7V - 5.5V 0.6V
CC
(2)
V
CC
+ 0.5 V
V
IH1
Input High Voltage,
XTAL1 pin
V
CC
= 2.7V - 5.5V 0.7V
CC
(2)
V
CC
+ 0.5 V
V
IH2
Input High Voltage,
RESET pin
V
CC
= 2.7V - 5.5V 0.9V
CC
(2)
V
CC
+ 0.5 V
V
OL
Output Low Voltage
(3)
,
I
OL
= 20 mA, V
CC
= 5V
I
OL
= 5 mA, V
CC
= 3V
0.8
0.5
V
V
OH
Output High Voltage
(4)
,
I
OH
= -20 mA, V
CC
= 5V
I
OH
= -10 mA, V
CC
= 3V
4.1
2.3
V
I
IL
Input Leakage
Current I/O Pin
V
CC
= 5.5V, pin low
(absolute value)
1µA
I
IH
Input Leakage
Current I/O Pin
V
CC
= 5.5V, pin high
(absolute value)
1µA
R
RST
Reset Pull-up Resistor 30 60 kΩ
R
PU
I/O Pin Pull-up Resistor 20 50 kΩ
V
ACIO
Analog Comparator
Input Offset Voltage
V
CC
= 5V
V
in
= V
CC
/2
<10 40 mV
I
ACLK
Analog Comparator
Input Leakage Current
V
CC
= 5V
V
in
= V
CC
/2
-50 50 nA
t
ACID
(5)
Analog Comparator
Propagation Delay
V
CC
= 2.7V
V
CC
= 4.0V
750
500
ns