![](http://datasheet.mmic.net.cn/350000/RAA28_datasheet_16573772/RAA28_2.png)
D.C. Characteristics
T
A
= -40°C to 85°C, V
CC
= 2.7 V to 6.0 V (unless otherwise noted)
Symbol Parameter
V
IL
Input Low Voltage
V
IH
Input High Voltage
V
IH1
Input High Voltage
Output Low Voltage
(1)
(Ports 1, 3)
Condition
Min
-0.5
Max
Units
V
V
V
0.2 V
CC
-0.1
V
CC
+0.5
V
CC
+0.5
(Except XTAL1, RST)
(XTAL1, RST)
I
OL
= 20 mA, V
CC
= 5 V
I
OL
= 10 mA, V
CC
= 2.7 V
I
OH
= -80
μ
A, V
CC
= 5 V
±
10%
I
OH
= -30
μ
A
I
OH
= -12
μ
A
0.2 V
CC
+0.9
0.7 V
CC
V
OL
0.5
V
V
OH
Output High Voltage
(Ports 1, 3)
2.4
V
V
V
0.75 V
CC
0.9 V
CC
I
IL
Logical 0 Input Current
(Ports 1, 2, 3)
Logical 1 to 0 Transition
Current (Ports 1, 2, 3)
Input Leakage Current
(Port P1.0, P1.1)
Comparator Input Offset
Voltage
Comparator Input
Common Mode Voltage
Reset Pulldown Resistor
Pin Capacitance
V
IN
= 0.45 V
-50
μ
A
I
TL
V
IN
= 2 V
-750
μ
A
I
LI
0 < V
IN
< V
CC
±
10
μ
A
V
OS
V
CC
= 5 V
20
mV
V
CM
0
V
CC
V
RRST
C
IO
50
300
10
15/5.5
K
pF
mA
Test Freq. = 1 MHz, T
A
= 25°C
Active Mode, 12 MHz, V
CC
= 6 V/3 V
Idle Mode, 12 MHz, V
CC
= 6 V/3 V
P1.0 & P1.1 = 0V or V
CC
V
CC
= 6 V P1.0 & P1.1 = 0V or V
CC
V
CC
= 3 V P1.0 & P1.1 = 0V or V
CC
I
CC
Power Supply Current
5/1
mA
Power Down Mode
(2)
100
20
μ
A
μ
A
Notes: 1. Under steady state (non-transient) conditions, I
OL
must be externally limited as follows:
Maximum I
OL
per port pin:20 mA
Maximum total IOL for all output pins:80 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 conditions.
2. Minimum V
CC
for Power Down is 2 V.