![](http://datasheet.mmic.net.cn/90000/MEGA64M1-ESMZ_datasheet_3507765/MEGA64M1-ESMZ_318.png)
318
7647F–AVR–04/09
ATmega16/32/64/M1/C1
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 (10 mA at V
CC = 5V, 6 mA 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 70 mA.
2] The sum of all IOL, for ports B6 - B7, C0 - C1, D0 -D3, E0 should not exceed 70 mA.
3] The sum of all IOL, for ports B2 - B5, C4 - C7, D5 - D7 should not exceed 70 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 (10 mA at
V
CC = 5V, 8 mA 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 100 mA.
2] The sum of all IOH, for ports B6 - B7, C0 - C1, D0 -D3, E0 should not exceed 100 mA.
3] The sum of all IOH, for ports B2 - B5, C4 - C7, D5 - D7 should not exceed 100 mA.
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.
IIL
Input Leakage
Current I/O Pin
V
CC = 5.5V, pin low
(absolute value), except Port E
50
nA
IIH
Input Leakage
Current I/O Pin
V
CC = 5.5V, pin high
(absolute value), except Port E
50
nA
R
RST
Reset Pull-up Resistor
30
200
k
Ω
Rpu
I/O Pin Pull-up Resistor
20
50
k
Ω
ICC
Power Supply Current
Active 8 MHz, VCC = 3V, RC
osc, PRR = 0xFF
3.8
8
mA
Active 16 MHz, VCC = 5V, Ext
Clock, PRR = 0xFF
14
30
mA
Idle (16K and 32K devices)
VCC = 3V, F = 8 MHz
VCC = 5V, F = 16MHz
1.1
4.0
8
15
mA
Idle (64K devices only)
VCC = 3V, F = 8 MHz
VCC = 5V, F = 16MHz
1.5
5.8
8
15
mA
WDT enabled, VCC = 5V
t0 < 85°C
830
A
WDT enabled, VCC = 5V
85°C < t0 < 125°C
21
120
A
WDT disabled, VCC = 5V
t0 < 85°C
225
A
WDT disabled, VCC = 5V
85°C < t0 < 125°C
16
100
A
Vhysr
Analog Comparator
Hysteresis Voltage
VCC = 5V, Vin = 3V
Rising Edge
Falling Edge
-100
25
-35
70
mV
IACLK
Analog Comparator
Input Leakage Current
VCC = 5V
Vin = VCC/2
-50
+50
nA
tACID
Analog Comparator
Propagation Delay
VCC = 2.7V
VCC = 5.0V
(6)
ns
ISRC
Current Source Value
VCC = 5V: Max Rload 30 KΩ
VCC = 3V: Max Rload 15 KΩ
95
100
105
A
T
A = -40° C to +125° C, VCC = 2.7V to 5.5V (unless otherwise noted) (Continued)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units