8-bit AVR Microcontrollers

DC Characteristics

Table 1. Common DC Characteristics TA = -40°C to 105°C, VCC = 1.8V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min. Typ. Max. Units
VIL Input Low Voltage, except XTAL1 and RESET pin VCC = 1.8V - 2.4V
 -0.5
   0.2VCC(1)
 V
VCC = 2.4V - 5.5V -0.5   0.3VCC(1)


VIH Input High Voltage, except XTAL1 and RESET pins VCC = 1.8V - 2.4V
 0.7VCC(2)
   VCC + 0.5
 V
VCC = 2.4V - 5.5V 0.6VCC(2)
   VCC + 0.5
VIL1 Input Low Voltage,
XTAL1 pin VCC = 1.8V - 5.5V -0.5   0.1VCC(1)

 V
VIH1 Input High Voltage, 
XTAL1 pin VCC = 1.8V - 2.4V
 0.8VCC(2)
   VCC + 0.5
 V
VCC = 2.4V - 5.5V 0.7VCC(2)
   VCC + 0.5
VIL2 Input Low Voltage, 
RESET pin VCC = 1.8V - 5.5V -0.5   0.1VCC(1) V
VIH2 Input High Voltage, 
RESET pin VCC = 1.8V - 5.5V 0.9VCC(2)
   VCC + 0.5 V
VIL3 Input Low Voltage, 
RESET pin as I/O VCC = 1.8V - 2.4V
 -0.5
   0.2VCC(1)
 V
VCC = 2.4V - 5.5V -0.5   0.3VCC(1)

VIH3 Input High Voltage, 
RESET pin as I/O VCC = 1.8V - 2.4V
 0.7VCC(2)

   VCC + 0.5
 V
VCC = 2.4V - 5.5V 0.6VCC(2)
   VCC + 0.5
VOL Output Low Voltage(4)
except RESET pin

IOL = 20mA,

VCC = 5V

 TA=85°C     0.9  
TA=105°C     1.0  

IOL = 10mA,

VCC = 3V

 TA=85°C     0.6  
TA=105°C     0.7 V
VOH Output High Voltage(3)
except Reset pin

IOH = 20mA,

VCC = 5V

 TA=85°C 4.0      
TA=105°C 3.9      

IOH = 10mA,

VCC = 3V

 TA=85°C 2.1      
TA=105°C 2.0     V
IIL Input Leakage
Current I/O Pin VCC = 5.5V, pin low
(absolute value)     1 μA
IIH Input Leakage
Current I/O Pin VCC = 5.5V, pin high
(absolute value)     1 μA
RRST Reset Pull-up Resistor   30   60 kΩ
RPU I/O Pin Pull-up Resistor   20   50 kΩ
VACIO Analog Comparator 
Input Offset Voltage

VCC = 1.8-5V,
0V<Vin<VCC-0.1V

   <10 40 mV
IACLK Analog Comparator 
Input Leakage Current

VCC=5V
,
Vin = VCC/2

 -50   50 nA
tACID Analog Comparator 
Propagation Delay     400   ns
Notes:
  1. 1.“Max.” means the highest value where the pin is guaranteed to be read as low.
  2. 2.“Min.” means the lowest value where the pin is guaranteed to be read as high.
  3. 3.Although each I/O port can source 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:

    1. a.The sum of all IOH, for ports C0 - C5, D0- D4, ADC7, RESET should not exceed 100 mA.

    2. b.The sum of all IOH, for ports B0 - B5, D5 - D7, ADC6, XTAL1, XTAL2 should not exceed 100 mA.


      If IIOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.

  4. 4.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:

    1. a.The sum of all IOL, for ports C0 - C5, ADC7, ADC6 should not exceed 100 mA.
    2. b.The sum of all IOL, for ports B0 - B5, D5 - D7, XTAL1, XTAL2 should not exceed 100 mA.

    3. c.The sum of all IOL, 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.

Parent topic: Electrical Characteristics
Related Links