mxb7843 Maxim Integrated Products, Inc., mxb7843 Datasheet - Page 12

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

2.375V to 5.25V, 4-Wire Touch-Screen
Controller
Figure 5.
Figure 6. PENIRQ Timing Diagram
12
SCREEN TOUCHED HERE
PENIRQ
CS
DCLK
DIN
______________________________________________________________________________________
PENIRQ Functional Block Diagram
t
TOUCH
S
INTERRUPT PROCESSOR
1
A2
TOUCH SCREEN
2
A1
3
A0
NO RESPONSE TO TOUCHMASK PENIRQ
4
M
5
S/D
6
PD1
7
OPEN CIRCUIT
Y+
X+
Y-
PD0
8
ON
1
PENIRQ
ENABLE
2
3
100kΩ
V
DD
PENIRQ
12
13
14
PENIRQ ENABLED
15
16