XPT2046 Touch Screen Controller
C
C
o
o
p
p
y
y
r
r
i
i
g
g
h
h
t
t
©
©
2
2
0
0
0
0
7
7
,
,
S
S
H
H
E
E
N
N
Z
Z
H
H
E
E
N
N
X
X
P
P
T
T
E
E
K
K
T
T
E
E
C
C
H
H
N
N
O
O
L
L
O
O
G
G
Y
Y
C
C
O
O
.
.
,
,
L
L
T
T
D
D
http://www.xptek.com.cn
6/30
REFERENCE INPUT
Range
Input Impedance
SER/
——
DFR
=0,PD1=0
Internal Reference Off
Internal Reference On
1.0
1
250
VCC
V
GΩ
Ω
BATTERY MONITOR
Input Voltage Range
Input Impedance
Sampling Battery
Battery Monitor Off
Accuracy
V
BAT
=0.5V~5.5V, ExternalV
REF
=2.5V
V
BAT
=0.5V~5.5V, Internal Reference
0.5
-2
-3
10
1
6.0
+2
+3
V
KΩ
GΩ
%
%
TEMPERATURE ASUREMENT
Temperature Range
Resolution
Accuracy
Differential Method
(3)
TEMP0(4)
Differential Method(3)
TEMP0(4)
-40
1.6
0.3
±2
±3
+85
℃
℃
℃
℃
℃
DIGITAL INPUT/OUTPUT
Logic Family
Capacitance
V
IH
V
IL
V
OH
V
OL
Data Format
All Digital Control Input Pins
| I
IH
|≤+5µA
| I
IL
|≤+5µA
I
OH
=-250µA
I
OL
=250µA
IOVDD*0.7
-0.3
IOVDD*0.8
CMOS
5
Straight
Binary
15
IOVDD+0.3
0.3*IOVDD
0.4
pF
V
V
V
V
POWER-SUPPLYREQUIREMENTS
+VCC (5)
IOVDD (6)
Quiescent Current (7)
Power Dissipation
Specified Performance
Operating Range
Internal Reference Off
Internal Reference On
fSAMPLE = 12.5kHz
Power-Down Mode with
(CS=DCLK=DIN=IOVDD)
VCC=+2.7V
2.7
2.2
1.5
280
780
220
3.6
5.25
VCC
650
3
1.8
V
V
V
µA
µA
µA
µA
mW
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