Data Sheet

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第
4
页 共
10
页
7. MAXIMUM ABSOLUTE LIMIT (T=25°C)
Items
Symbol
Min
Max
Unit
Condition
Supply Voltage
Vdd
0
5.2
V
Vss=0V
Input Voltage
Vin
0
Vdd
V
Vss=0V
Operating Temperature
Top
-20
+70
℃
No Condensation
Storage Temperature
Tst
-30
+80
℃
No Condensation
Note: Voltage greater than above may damage the module
All voltages are specified relative to VSS=0V
8. ELECTRICAL CHARACTERISTICS
8.1 DC Characteristics (VDD=+5.0V, VSS=0V, Ta=-0~+50°C)
Items
Symbol
Test Condition
Min
TYP
Max
Unit
Operating Voltage
V
DD
3.0V
—
5.2
V
Supply Current
I
DD
Use internal
Oscillator/external
clock(VDD=5V，
fosc=250KHz)
—
0.55
0.8
mA
Input High Voltage 1
(Except OSC1)
V
IH1
—
2.5
—
Vdd
V
V
IL1
—
-0.3
—
0.6
Input High Voltage 2
(Except OSC1)
V
IH2
—
Vdd-1.0
—
Vdd
V
V
IL2
—
-0.2
1
V
Output High Voltage 1
(DB0~DB7)
V
OH1
I
OH
=-0.205mA
2.4
—
Vdd
V
V
OL1
I
OL
=1.2mA
—
—
0.4
V
Output High Voltage 2
(Except DB0~DB7)
V
OH2
I
O
= -40uA
0.9Vdd
—
V
V
OL2
I
O
=40uA
—
—
0.1Vdd
V
Input Leakage Current
I
IKG
V
IN
=0V～VDD
-1
—
1
uA
Input Low Current
I
IL
V
IN
=0V V
DD
=5V(pull
up)
-50
-125
-250
uA
Internal clock(external Rf)
f
OSC1
Rf=91KΩ±2%，
VDD=5V
190
270
350
KHz
External clock
f
OSC
—
125
270
410
KHz
duty
45
50
55
%
t
R
, t
F
—
0.2
uS
LCD Driving Voltage
V
LCD
V
DD-
V5(1/5,1/4bias)
3.0
—
11.0
V