STMPE821_09 STMICROELECTRONICS [STMicroelectronics], STMPE821_09 Datasheet - Page 5

• Manufacturer Part Number: STMPE821_09
• Description: 8-channel capacitive touch key controller
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STMPE821
1
1.1
STMPE821 functional overview
The STMPE821 consists of the following blocks:
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STMPE821 block diagram
Figure 1.
GPIO controller
PWM controller
Impedance sensor
Touch key controller
I
2
C interface
Functional block diagram
SCLK
SDAT
RST
INT
GND
interface
controller
I
GPIO
VCC
2
C
controller
PWM
VIO
STMPE821 functional overview
Impedance
Touchkey
controller
sensor
ARef
GPIO 0 - 7
/Touch 0 - 7
CS00046
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