MXB7843EUE-T Maxim Integrated, MXB7843EUE-T Datasheet - Page 9

• 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

Table 1. Input Configuration, Single-Ended Reference Mode (SER/DFR HIGH)
Table 2. Input Configuration, Differential Reference Mode (SER/DFR LOW)
A2
A2
0
1
0
0
0
0
1
1
1
1
A1
A1
0
0
0
0
1
1
0
0
1
1
A0
A0
_______________________________________________________________________________________
1
1
0
1
0
1
0
1
0
1
REF
IN3
IN4
X+
X-
Y+
Y-
CONNECTION TO
2.375V to 5.25V, 4-Wire Touch-Screen
ADC +REF
Y+
X+
MEASUREMENT
Y-Position
X-Position
Reserved
Reserved
Reserved
Reserved
IN3
IN4
V
DD
CONNECTION TO
ADC -REF
Y-
X-
6-TO-1
MUX
ADC INPUT CONNECTION
CONNECTION TO
12-BIT ADC
ADC INPUT
Reserved
Reserved
Reserved
Reserved
IN3
IN4
X+
Y+
X+
Y+
MEASUREMENT
INTERFACE
PERFORMED
SERIAL
DATA
Functional Diagram
Y position
X position
Controller
DOUT
BUSY
PENIRQ
DCLK
DIN
CS
DRIVERS ON
Y+, Y-
X-, X+
—
—
—
—
—
—
DRIVER ON
Y+, Y-
X+, X-
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