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S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X ELECTRICAL DATA
17-3
Table 17-2. D.C. Electrical Characteristics (Continued)
(T
A
= − 25
°
C to + 85
°
C, V
DD
= 2.0 V to 3.6 V)
Parameter Symbol Conditions Min Typ Max Unit
Input low
leakage current
I
LIL1
V
I
= 0 V;
All input pins except nRESET,
I
LIL2
− −
–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 resistors
R
L1
V
I
= 0 V; V
DD
= 3V, T
A
= 25
°
C
Ports 0–6
40 70 100
kΩ
R
L2
V
I
= 0 V; V
DD
= 3V, T
A
= 25
°
C
nRESET
220 360 500
Oscillator feed
back resistors
R
OSC1
V
DD
= 3 V, T
A
= 25 °C
X
IN
= V
DD
, X
OUT
= 0V
600 1700 3000
kΩ
R
OSC2
V
DD
= 3 V, T
A
= 25 °C
XT
IN
= V
DD
, XT
OUT
= 0 V
2000 4000 8000
LCD voltage
dividing resistor
R
LCD
T
A
= 25 °C
60 110 160
kΩ
⏐
V
LCD
-COMi⏐
voltage drop
(i = 0-3)
V
DC
− 15 µA per common pin − −
120 mV
⏐
V
LCD
-SEGx⏐
voltage drop
(x = 0–31)
V
DS
− 15 µA per common pin − −
120
Middle output
voltage
(1)
V
LC1
V
DD
=
2.7 V to 3.6 V, 1/3 bias
LCD clock = 0Hz, V
LC0
= V
DD
2/3V
DD
–0.2 2/3V
DD
2/3V
DD
+ 0.2
V
V
LC2
1/3V
DD
–0.2 1/3V
DD
1/3V
DD
+ 0.2
NOTE: It is middle output voltage when the V
LC0
pin is opened.