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S3C9228/P9228 ELECTRICAL DATA
16-3
Table 16-2. D.C. Electrical Characteristics (Continued)
(T
A
= – 25
°
C to + 85
°
C, V
DD
= 2.0 V to 5.5 V)
Parameter Symbol Conditions Min Typ Max Unit
Input Low
leakage current
I
LIL1
V
I
= 0 V;
All input pins except RESET,
X
OUT
, XT
IN
, XT
OUT
– – –3
µA
I
LIL2
V
I
= 0 V;
X
IN
, X
OUT
, XT
IN
, XT
OUT
–20
Output High
leakage current
I
LOH
V
O
= V
DD
All output pins
– – 3
Output Low
leakage current
I
LOL
V
O
= 0 V
All output pins
– – –3
Pull-Up Resistor
R
L1
V
I
= 0 V; V
DD
= 5V, T
A
= 25
°
C
Ports 0–6
25 47 100
kΩ
V
DD
= 3V, T
A
= 25
°
C
50 90 150
R
L2
V
I
= 0 V; V
DD
= 5V, T
A
= 25
°
C
RESET
150 250 400
V
DD
= 3V, T
A
= 25
°
C
300 500 700
Oscillator Feed
back Resistors
R
OSC1
V
DD
= 5 V, T
A
= 25 °C
X
IN
= V
DD
, X
OUT
= 0V
300 600 1500
kΩ
R
OSC2
V
DD
= 5 V, T
A
= 25 °C
XT
IN
= V
DD
, XT
OUT
= 0 V
1500 3000 4500
LCD Voltage
Dividing Resistor
R
LCD
T
A
= 25 °C
50 70 90
kΩ
V
LCD
-COMi
Voltage Drop
(i = 0-7)
V
DC
V
DD
= 2.7 V to 5.5 V
- 15 µA per common pin
– – 120 mV
V
LCD
-SEGx
Voltage Drop
(x = 0–19)
V
DS
V
DD
= 2.7 V to 5.5 V
- 15 µA per common pin
– – 120
Middle Output
Voltage
V
LC2
V
DD
=
2.7 V to 5.5 V,
LCD clock = 0Hz, V
LC1
= V
DD
0.8V
DD
–0.2 0.8V
DD
0.8V
DD
+
0.2
V
V
LC3
0.6V
DD
–0.2 0.6V
DD
0.6V
DD
+
0.2
V
LC4
0.4V
DD
–0.2 0.4V
DD
0.4V
DD
+
0.2
V
LC5
0.2V
DD
–0.2 0.2V
DD
0.2V
DD
+
0.2
NOTE: Low leakage current is absolute value.