mxb7843 Maxim Integrated Products, Inc., mxb7843 Datasheet - Page 19

• Manufacturer Part Number: mxb7843
• Description: Mxb7843 2.375v To 5.25v, 4-wire Touch-screen Controller
• Manufacturer: Maxim Integrated Products, Inc.

Figure 14. MXB7843-to-TMS320 Serial Interface Timing Diagram
CS
DCLK
DIN
BUSY
DOUT
START
1µF TO 10µF
______________________________________________________________________________________
OPTIONAL
A2
TOUCH
SCREEN
2.375V to 5.25V, 4-Wire Touch-Screen
A1
2.375V TO 5.5V
A0
MODE
0.1µF
SER/DEF
PD1
1
2
3
4
5
6
7
8
V
X+
Y+
X-
Y-
GND
IN3
IN4
PD0
DD
MXB7843
MSB
PENIRQ
DOUT
DCLK
BUSY
V
REF
DIN
CS
DD
B10
16
15
14
13
12
11
10
9
Typical Application Circuit
0.1µF
B1
B0
50kΩ
SERIAL/CONVERSION CLOCK
CHIP SELECT
SERIAL DATA IN
CONVERTER STATUS
SERIAL DATA OUT
PEN INTERRUPT
Controller
HIGH IMPEDANCE
HIGH IMPEDANCE
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