STMPE812ABJR STMicroelectronics, STMPE812ABJR Datasheet - Page 4

• Manufacturer Part Number: STMPE812ABJR
• Description: Touch Screen Converters & Controllers Touchscreen cntrlr S-Touch
• Manufacturer: STMicroelectronics
• Type: Resistive Touch Controllersr

Specifications of STMPE812ABJR

• Rohs: yes
• Input Type: 1 TSC
• Data Rate: 400 kbps
• Resolution: 12 bit
• Interface Type: 4-wire, I2C
• Supply Voltage: 1.65 V to 3.6 V
• Supply Current: 100 uA
• Operating Temperature: - 40 C to + 85 C
• Package / Case: CSP-12
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.65 V

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 4
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