Description
Pin Name
1 PRIMARY I/O
2 VSS
3 SECONDARY I/O
4 VREG 5 VDDHI 6 Cx
IQS211A/B in TSOT23-6
Type Digital Input/Output
Function
Multifunction IO1 (open-drain output1) SCL (I2C Clock signal) /
1WIRE (data streaming)
Signal GND Digital Input/Output
Multifunction IO2 (open-drain output1) SDA (I2C Data output)
EVENT
Regulator output Supply Input
Requires external capacitor Supply:1.8V
3.6V
Sense electrode
Connect to conductive area intended for sensor
VDDHI R2 40R
C3 C4 1uF 100pF
U1
Features
- Pin compatible with IQS127D/ 128/ 227AS/ 228AS/ 231A (output types may differ)
RoHS2
Compliant.
 
- Automatic Tuning Implementation (ATI).
 
- On-chip movement detection algorithm.
 
- Forced activation when movement detected
8 pin WLCSP-8
6 pin TSOT23-6.
 
- Minimal external components
Representations only, not actual markings.
 
- Down to 10aF capacitance resolution.
 
- Up to 60pF sensor load (with effective
o Runtime switch to standalone mode
movement detection).