Dc characteristics, Atmega161(l) – Rainbow Electronics ATmega161L User Manual
Page 131
131
ATmega161(L)
1228C–AVR–08/02
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 V
CC
= 5V, 10 mA at V
CC
= 3V) under steady-state
conditions (non-transient), the following must be observed:
1] The sum of all I
OL
, for all ports, should not exceed 200 mA.
2] The sum of all I
OL
, for ports B0 - B7, D0 - D7 and XTAL2, should not exceed 100 mA.
3] The sum of all I
OL
, for ports A0 - A7, ALE, OC1B and C0 - C7 should not exceed 100 mA.
If I
OL
exceeds the test condition, V
OL
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 (3 mA at V
CC
= 5V, 1.5 mA at V
CC
= 3V) under steady-state
conditions (non-transient), the following must be observed:
1] The sum of all I
OH
, for all ports, should not exceed 200 mA.
2] The sum of all I
OH
, for ports B0 - B7, D0 - D7 and XTAL2, should not exceed 100 mA.
3] The sum of all I
OH
, for ports A0 - A7, ALE, OC1B and C0 - C7 should not exceed 100 mA.
DC Characteristics
T
A
= -40
°C to 85°C, V
CC
= 2.7V to 5.5V (unless otherwise noted)
(1)(2)(3)(4)(5)
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
IL
Input Low Voltage
(Except XTAL1)
-0.5
0.3
V
CC
(1)
V
V
IL1
Input Low Voltage
(XTAL1)
-0.5
0.2
V
CC
(1)
V
V
IH
Input High Voltage
(Except XTAL1, RESET)
0.6 V
CC
(2)
V
CC
+ 0.5
V
V
IH1
Input High Voltage
(XTAL1)
0.8 V
CC
(2)
V
CC
+ 0.5
V
V
IH2
Input High Voltage
(RESET)
0.9 V
CC
(2)
V
CC
+ 0.5
V
V
OL
Output Low Voltage
(3)
(Ports A,B,C,D)
I
OL
= 20 mA, V
CC
= 5V
I
OL
= 10 mA, V
CC
= 3V
0.6
0.5
V
V
V
OH
Output High Voltage
(4)
(Ports A,B,C,D)
I
OH
= -3 mA, V
CC
= 5V
I
OH
= -1.5 mA, V
CC
= 3V
4.2
2.3
V
V
I
IL
Input Leakage
Current I/O pin
V
CC
= 5.5V, pin low
(absolute value)
8.0
µA
I
IH
Input Leakage
Current I/O pin
V
CC
= 5.5V, pin high
(absolute value)
980
nA
RRST
Reset Pull-up Resistor
100
500
k
Ω
R
I/O
I/O Pin Pull-up Resistor
35
120
k
Ω
I
CC
Power Supply Current
Active mode, V
CC
= 3V,
4 MHz
3.0
mA
Idle mode V
CC
= 3V,
4 MHz
1.2
mA
Power-down mode
(5)
WDT enabled, V
CC
= 3V
9
15.0
µA
WDT disabled, V
CC
= 3V
<1
2.0
µA
V
ACIO
Analog Comparator
Input Offset Voltage
V
CC
= 5V
V
in
= V
CC
/2
40
mV
I
ACLK
Analog Comparator
Input Leakage Current
V
CC
= 5V
V
in
= V
CC
/2
-50
50
nA
t
ACPD
Analog Comparator
Propagation Delay
V
CC
= 2.7V
V
CC
= 4.0V
750
500
ns