MXB7843EUE-T Maxim Integrated, MXB7843EUE-T Datasheet - Page 19

• Manufacturer Part Number: MXB7843EUE-T
• Description: Touch Screen Converters & Controllers
• Manufacturer: Maxim Integrated
• Type: Resistive Touch Controllersr

Specifications of MXB7843EUE-T

• Input Type: 1 TSC
• Data Rate: 125 KSPS
• Resolution: 8 bit, 12 bit
• Interface Type: 3-Wire, 4-Wire, QSPI, SPI
• Supply Voltage: 2.375 V to 5.25 V
• Supply Current: 270 uA
• Operating Temperature: - 40 C to + 85 C
• Package / Case: TSSOP-16
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: -40 C
• Mounting Style: SMD/SMT
• Supply Voltage - Max: 5.25 V
• Supply Voltage - Min: 2.375 V

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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