stmpe812a STMicroelectronics, stmpe812a Datasheet - Page 4

• Manufacturer Part Number: stmpe812a
• Description: S-touch? Enhanced 4-wire Resistive Touchscreen Controller With Pwm And Dedicated Reset Pin
• Manufacturer: STMicroelectronics

STMPE812A functional overview
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STMPE812A functional overview
The STMPE812A consists of the following blocks:
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Figure 1.
I
GPIO/PWM controller
Touchscreen controller (TSC)
Analog-to-digital converted (ADC)
Driver and switch control unit
2
C interface
GND
VDD
SDA
SCL
STMPE812A block diagram
Management
Management
I2C Interface
I2C Interface
Power
Power
Doc ID 18225 Rev 2
POR
POR
POR
Drivers and
Drivers and
GPIO/PWM
GPIO/PWM
Controller
Controller
Switches
Switches
Screen
Screen
Touch
Touch
TSC
TSC
TSC
ADC
ADC
ADC
System
System
Reset
Reset
M
U
X
X+
X+
X-
X-
Y+
Y+
Y-
Y-
STMPE812A