26.2 DC Characteristics (Continued)
TA = –40°C to +125°C, VCC = 2.7V to 5.5V (unless otherwise noted) (Continued)
Parameter
Condition
Symbol
VIL2
Min.
–0.5
Typ.
Max.
Unit
V
(1)
Input low voltage
Input high voltage
Input low voltage
Input high voltage
RESET pin
0.2VCC
(2)
(2)
RESET pin
VIH2
0.9VCC
–0.5
VCC + 0.5
V
(1)
RESET pin as I/O
RESET pin as I/O
VIL3
0.2VCC
V
VIH3
0.8VCC
VCC + 0.5
V
Output low voltage(3)
(Port B, C and D and
XTAL1, XTAL2 pins as I/O)
IOL = 10mA, VCC = 5V
IOL = 6mA, VCC = 3V
0.7
0.5
VOL
V
Output high voltage(4)
(Port B, C and D and
XTAL1, XTAL2 pins as I/O)
IOH = –10mA, VCC = 5V
4.2
2.2
V
V
VOH
IOH = –8mA, VCC = 3V
Output low voltage(3)
(RESET pin as I/O)
Output high voltage(4)
(RESET pin as I/O)
IOL = 2.1mA, VCC = 5V
OL = 0.8mA, VCC = 3V
0.9
0.7
V
V
VOL3
VOH3
I
IOH = –0.6mA, VCC = 5V
IOH = –0.2mA, VCC = 3V
3.8
1.8
V
V
VCC = 5.5V, pin low
(absolute value), except
Port E
Input leakage current I/O
pin
IIL
50
50
nA
nA
VCC = 5.5V, pin high
(absolute value), except
Port E
Input leakage
current I/O Pin
IIH
Reset pull-up resistor
I/O pin pull-up resistor
RRST
Rpu
30
20
200
50
k
k
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 (10mA at VCC = 5V, 6mA at VCC = 3V) under steady state
conditions (non-transient), the following must be observed:
1] The sum of all IOL, for ports B0 - B1, C2 - C3, D4, E1 - E2 should not exceed 70mA.
2] The sum of all IOL, for ports B6 - B7, C0 - C1, D0 -D3, E0 should not exceed 70mA.
3] The sum of all IOL, for ports B2 - B5, C4 - C7, D5 - D7 should not exceed 70mA.
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 (10mA at VCC = 5V, 8mA at VCC = 3V) under steady
state conditions (non-transient), the following must be observed:
1] The sum of all IOH, for ports B0 - B1, C2 - C3, D4, E1 - E2 should not exceed 100mA.
2] The sum of all IOH, for ports B6 - B7, C0 - C1, D0 -D3, E0 should not exceed 100mA.
3] The sum of all IOH, for ports B2 - B5, C4 - C7, 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. Minimum VCC for power-down is 2.5V.
6. The analog comparator Propogation Delay equals 1 comparator clock plus 30nS. See Section 20. “Analog Compara-
tor” on page 225 for comparator clock definition.
274
ATmega16/32/64/M1/C1 [DATASHEET]
7647O–AVR–01/15
MICROCHIP [ MICROCHIP ]
