MXB7843EEE+ Maxim Integrated Products, MXB7843EEE+ Datasheet - Page 19

• Manufacturer Part Number: MXB7843EEE+
• Description: IC CNTRLR TOUCH RES 16QSOP
• Manufacturer: Maxim Integrated Products
• Type: Resistiver

Specifications of MXB7843EEE+

• Touch Panel Interface: 4-Wire
• Number Of Inputs/keys: 1 TSC
• Resolution (bits): 12 b
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Data Rate/sampling Rate (sps, Bps): 125k
• Voltage Reference: External
• Voltage - Supply: 2.38 V ~ 5.25 V
• Current - Supply: 650µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Output Type: Digital
• Interface: 4-Wire Serial
• Input Type: Analog
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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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